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SA Roofing June 2014 | Issue: 60

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SA Roofing is the only publication in South Africa that is dedicated exclusively to the residential, commercial and industrial roofing and re-roofing industries.
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JUNE 2014 ISSUE: 60 WWW.TRADEMAX.CO.ZA SA R36 EACH INCL. / R360 PER ANNUM INCL.
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Page 1: SA Roofing June 2014 | Issue: 60

JUNE 2014 ISSUE: 60WWW.TRADEMAX.CO.ZA SA R36 EACH INCL. / R360 PER ANNUM INCL.

Page 2: SA Roofing June 2014 | Issue: 60
Page 3: SA Roofing June 2014 | Issue: 60

1

JUNE 2014 ISSUE: 60

JUNE 2014

EDITOR’S COMMENTS ...................................................................................................... 2

SUSTAINABILITY ..............................................................................................................4-8

COVER STORY ............................................................................................................. 10-15

COMPANY PROFILE ......................................................................................................... 16

LSFB.................................................................................................................................. 18-19

NEWS .............................................................................................................................. 20-22

SHINGLES ...................................................................................................................... 24-28

WATERPROOFING ..................................................................................................... 30-32

SEALANTS ..................................................................................................................... 34-35

ARCHITECTURE ................................................................................................................ 36

CEMENT & CONCRETE .................................................................................................. 37

NEWS .................................................................................................................................... 38

CEMENT & CONCRETE ............................................................................................ 40-41

HEALTH & SAFETY ...................................................................................................... 42-43

PAINTS & COATINGS ...................................................................................................... 44

EVENTS ................................................................................................................................. 46

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Trademax Publications

SA Roofing

Tel: 0861 SA ROOF Tel: 0861 727 663 Cell: 082 266 6976Fax: 0866 991 346www.trademax.co.za

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Private Bag X103

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7463 PUBLISHER: Billy Perrin

[email protected]

0861 727 663

EDITOR: Jennifer Rees

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ADVERTISING: Jacqui Marsh

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0861 727 663

LAYOUT & DESIGN: Craig Patterson

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SUBSCRIPTIONS & DATA: Celeste Perrin

[email protected]

0861 727 663

DISCLAIMERThe views expressed herein are not necessarily those of Trademax Publications. Although we have done our best to ensure the accuracy of our content, neither Trademax Publications nor SA Roofing magazine will be held liable for any views expressed or information disseminated in

this issue.

Page 4: SA Roofing June 2014 | Issue: 60

Our lead story is about an upmarket home built intelligently, using sustainable building materials and skills supplied in a collaborative effort by top players

in the industry. The intent behind Stand 47, according to Gavin Rooke, land owner and developer, “was to demonstrate, through a physical example, how considered design and state-of-the-art building materials can add significant value to the personal living experience within a contemporary home.” This has been achieved by striking a unique balance between good looks, clever design, and a home that will adapt to its inhabitants’ evolving requirements.

On the cover this month is LCP Roofing, whose cover story informatively details the technical side of roof trusses, by addressing the application of SANS 1900, as well as the minimum requirements of the Institute of Timber Construction (ITC-SA) with regards to design, manufacturing, and inspection of erected roof trusses.

And finally, we are happy to share the good news of the Green Building Council SA’s milestone of 50 Green Star SA certifications. Says Brian Wilkinson, CEO of the GBCSA, “Reaching 50 certifications illustrates the commitment the South African commercial property sector has shown towards resource efficiency and climate change abatement, while creating healthier and more productive environments for us to work and live in.” The ‘fast facts’ on the predicted performance of these buildings are truly astounding and worth a look on page 20.

Welcome to the June issue of the SA Roofing magazine.

Enjoy the read.

Jen

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TS Design smarts

In this issue of the SA Roofing magazine, we showcase beautiful projects, great industry insight, and exciting news.

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Stand 47 re-imagines an ideal South African home Located on Monaghan Farm in Gauteng, Stand 47 is now a completed

high-end concept home – and it is no ordinary home.

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It challenges every aspect of existing South African residential architecture, taking the status quo, examining it from all angles, and giving every facet of

the traditional domestic home a fresh interpretation to make it work better than before.

It’s an evolutionary step.

In the broadest sense, Stand 47 has employed an innovative process that begins with questioning what a South African home has the potential to be, and moves on to explore how the traditional materials, components, functions and processes to which we are accustomed, can be used or executed differently to fully explore their potential. Combine this approach with modern design principles, state-of-the-art materials and technology, apply them to the local context and contemporary needs and the result is something extraordinary.

“A key aspect in developing the Stand 47 Case Study was to select a diverse team of curious and innovative people who would rise to the challenge of designing and building a high-end luxury concept home using an unconventional creative process,” comments land owner and developer, Gavin Rooke.

This team included Saint-Gobain as the primary materials partner, Thomashoff + Partner Architects, and Style Projects as the main contractor. Monaghan Farm is the showhouse partner, while Rhino Modified Wood, Amoretti and Ample Power were selected as specialists in their particular field. Ebony was chosen to provide the interior design and soft furnishing for the home.

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“Our purpose,” adds Rooke, “was to demonstrate, through a physical example, how considered design and state-of-the-art building materials can add significant value to the personal living experience within a contemporary home.”

And one of Stand 47’s most notable achievements is the seamless balance it creates between a comfortable, aesthetically beautiful living experience, high-tech building solutions and an efficient house design and build that will meet the ongoing and changing needs of its owners.

“Much of this,” he says, “has been shown to be possible through the use of building products supplied by our partners, most importantly Saint-Gobain.”

Established almost 350 years ago, Saint-Gobain is globally recognised as the world leader in the sustainable habitat and construction markets, and was recently lauded as one of Thomson Reuters’ Top 100 Global Innovators for the third year running.

Working with the Stand 47 Case Study – as part of its ongoing global research and development commitment – was an ideal opportunity for Saint-Gobain South Africa to showcase their products and materials in innovative ways, while at the same time, demonstrating their efficiency, robustness and high-performance qualities.

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“By partnering with Gavin in the creation of Stand 47, we have shown that our products can create an efficient, healthy and safe home that is still luxurious and comfortable. The easy integration of Saint-Gobain’s lightweight building products with more traditional organic materials that we know and love – such as natural stone and wood – has made for an experience that changes our idea of the way we can live,” says Evan Lockhart-Barker, General Manager: Marketing at Saint-Gobain Gyproc.

Saint-Gobain’s various lightweight systems that provide comforts, such as acoustic and thermal insulation, improved indoor air quality, moisture resistant properties, are highly durable and slow down the spread of fire for up to 120 minutes. These performance walls are also easily adaptable to the changing needs of each stage of life.

Hence Stand 47’s unobstructed open plan design, which allows for easy alterations to the interior walls of the house to double up or strip down rooms, without compromising the external structure. This is visible in features such as the single floor and single ceiling that run throughout the home, and the flexible configuration of the second bathroom, sections of which can be isolated according to the day-to-day needs of the occupants.

The concealed grid suspended ceiling offers a high level of aesthetic appeal. The Rhinolited skim plaster covering the ceiling prevents heat loss from inside the room/house, and with a guaranteed straightness of long sections, is easy to install. The durable ceiling lining will last the lifetime of the building (if not damaged by natural events), can be suspended from concrete, timber or steel floors and purlins, and can be insulated to meet SANS 10400 XA and SANS 204 requirements.

“We have broken new ground with Stand 47 through a combination of innovation and efficiency that has guided every aspect of the case study from the very beginning,” says Rooke. “We’ve achieved this through the integration of organic and hi-tech lightweight materials in a way that no one in South Africa has done before; our streamlined building process, and, most importantly, the design of the home have been guided by the particularities of the South African context.”

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Cnr Berkley and Bax Roads, Maitland 7405

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ESTIMATORS & DESIGNERS

THE RATIONAL DESIGN

According to SANS1900 (Manufacture of monoplaner prefabricated timber roof trusses [nail-plated]), the design used to manufacture each roof truss in a batch or order shall be a rational design.

The definition of a rational design means that a design is done by a process of calculations and reasoning, and will include, or use, as a basis, a code of practice or accepted published technical documentation. In the case of nail-plated roof trusses this will be attained by applying design software supplied by an accredited (software) system in South Africa.

The design shall include the grade of timber, dimensions of timber, the geometric configuration of all the members and the dimensions and positioning of the nail plates, connectors and cleats to be used.

It therefore stands to reason that estimators and designers of monoplaner roof trusses in South Africa not only need to know how to use the software provided by their system, but must also have an intimate knowledge, and be able to demonstrate their understanding, of the following:

• SANS 10160 and SANS 10163 – General Loading Code, and the basis of structural design and actions for buildings and industrial structures and code of practice for The Structural Use of Timber in the design of timber structures

• SANS 10243 – The Manufacture and Erection of Timber Roof Trusses

• The Application of the National Building Regulations (SANS 10400)

• The ITC-SA Roof Erectors Handbook for the Installation and Bracing of Pre-fabricated Timber Roof Trusses (Volume 2)

It is highly recommended that both the specifier and consumer insist that the estimator and designer are able to demonstrate and prove their knowledge and ability in this regard.

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The application of SANS 1900

and the minimum requirements of the ITC-SA in the design,

manufacture and inspection of erected roof trusses

"Productivity and efficiency can be achieved only step by step with sustained hard work, relentless attention to details and insistence on

the highest standards of quality and performance.” – J.R.D. Tata

Incorrect truss loading.

JUNE 201410

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The submission of a quotation on an official company letterhead is not necessarily sufficient proof of this.

An estimator and/or designer should be appointed by his employer (the fabricator) on a basis of proven competence, and the acceptance of an appointment letter where he accepts his responsibilities according to the aforementioned standards and regulations.

Furthermore, as a minimum standard, the estimator should have passed the basic designer course, and the designer the intermediate designer course, as laid down by the Institute for Timber Construction (ITC-SA).

In terms of the recent South African Qualifications Authority (SAQA) registration of the ITC-SA as a professional body, a roof designer will be issued with a certificate of competence by the ITC-SA, which together with his fabricator appointment, will ratify his ability to undertake design work in terms of the fabricator's manufacturing category.

THE LETTER OF APPOINTMENT OF AN ESTIMATOR IN RESPECT OF THE PREPARATION OF QUOTATIONS WILL ENSURE:

• That all quotations are in writing with both the fabricator and client details.

• To ensure a traceable job number to at least the year of quotation.

• That the inclusion of both roof area and the roof plan are mandatory on the quotation and that the roof plan is to include, as a minimum, the fabricator details and COC number, client details, job number, design codes of relevance and loads applied.

• That number(s) and/or titles of the architect’s drawings are used in the preparation of the quotations.

• Must state loadings, maximum truss centres, maximum batten/purlin centres, span, pitch, overhangs and any additional information required to define any unusual truss profiles. (In the event of there being a range of spans and/or pitches, the minimum and maximum spans and pitches shall be stated).

• State quantities of all bracing and runners required to provide stability to the trusses. Bracing shall be in accordance with either the ITC-SA requirements or any special requirements specified by the design engineers, or as laid down in SANS 10163 and SANS 10243.

• Details and quantities of all cleats, hurricane clips and hangers necessary to ensure compliance with the design requirements must be provided. Where specially fabricated cleats are required and their design or cost is not known, these may be excluded, but this exclusion must be clearly stated on the quotation.

• Where sundry timbers are quoted, the total quantities, sizes and purpose must be clearly stated.

• The estimator must check that any member sizes and grades specified by the client or his architect for any trusses, beams or joists are adequate. If any sizes are found to be inadequate, this must be clearly noted on the quotation.

• A statement must be provided to confirm whether or not delivery is included.

• VAT must be clearly included on the quotation.• The estimator (or any member of the company) must not

knowingly mislead the customer with respect to quotations or any item shown on the quotations.

THE LETTER OF APPOINTMENT OF A DESIGNER WHO WILL APPLY THE SYSTEM SOFTWARE FOR DESIGN OF A ROOF STRUCTURE WILL ENSURE:

• That all requirements pertaining to the estimator function are complied with.

• The design will include all structural elements to be supplied by the fabricator and will include not only trusses, but any beams, all necessary bracing, rafters or joists and their connections. The fabricator must ensure that the following items are complied with:

• Design must be carried out in accordance with the National Building Regulations, SANS 10160, SANS 10163, SANS 10243 and the ITC-SA recommendations for Truss Analysis and Design.

• Designs which are not of a conventional domestic nature shall be checked by the Systems Registered Professional Engineer before manufacture. Such designs may include roof or floor systems in the following categories of A (high Risk), B (Medium Risk), C (Low Risk) and D.

• The designer must check that any member sizes and grades specified by the client or his architect are adequate.

• The client or his engineer must be informed of any unusual loads or forces (vertical or horizontal) which may affect the supporting structure. Examples of loads in the category may include point loads applied to walls which may not have been designed as load bearing in addition to girder bearings which may affect lintels and foundations.

• The designs of trusses which contain elements of 38 x 50mm must be checked by the Systems Registered Professional Engineer. In addition, the use of such sizes must be clearly stated on the quotation. Where 38 x 50mm material is specified in the design, the material must be mechanically stress-graded or proof-graded and assigned working stresses in bending, tension, and compression, to the satisfaction of the SABS or CSIR and the supplying mill must provide proof of its SANS permit to structurally grade such a sized timber element.

• The designer must make every reasonable effort to ensure that the design is in accordance with the most recent version of the architect’s drawings. Any significant variation or discrepancy between the latest drawings and those used to prepare the quotation must be reported to the client as soon as possible after it is noticed. The client should be made aware in writing that cost variations may arise.

THE MANUFACTURE OF MONOPLANER PREFABRICATED TIMBER ROOF TRUSSES

SANS 1900 furthermore determines the minimum standard for the manufacture of monoplaner prefabricated timber roof trusses in terms of the following:

• The roof truss material and final product• Inspection of the manufactured product before leaving the

fabricator’s yard• Methods of testing• Packing or loading and marking

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IN TERMS OF THE ABOVE, NOTABLE MENTION CAN BE MADE OF:

TIMBER: Each member of timber shall be structurally graded and the maximum difference in thickness of members in a joint area shall be 1.0mm. There shall be no wane, dead knots or resin infiltration within the connector plate area, unless a larger plate is used to compensate for the ineffective area.

NAIL PLATES: Nail plates must have a firm and even contact between the faces of the timber and the nail plate. The teeth must not be flattened and ALL the teeth must be fully embedded in the members of a joint with a maximum clearance of 1mm in a member where the member is subject to the maximum tolerance in terms of thickness.

JOINT CLEARANCE: In open joints, and due to inaccuracies in cutting and assembly, the joint clearance shall not exceed 2mm, except in joint lengths exceeding 300mm, a tolerance of 5mm at one end and 0mm at the other end of the joint will be allowed.

PERMISSIBLE DEVIATIONS: Span = 10mm, height of individual trusses = 20mm

MARKINGS: Each truss shall bear the manufacturer’s name or trademark, the last two digits of the year of manufacture, and the batch or job number.

THE INSTITUTE FOR TIMBER CONSTRUCTION (ITC-SA) CATEGORIES:

The ITC-SA has determined the following categories of competence for fabricators:

Category A: Very complex roofs, including scissor trusses greater than 5m span, site splicing, attics and dormers, other spans greater than 10m, piggy back trusses, cantilevers greater than 2m, complex industrial and commercial structures, laminated timber structures and, most importantly, public buildings and schools.

Category B: Complex domestic and simple industrial and commercial roofs, hips and valleys up to 10m span, non-standard loads and scissor trusses up to 5m span.

Category C: Simple roofs up to 9m span, valleys, girders and support cleats, stub ends, cantilevers up to 2m, simple hips to 9m span and minimum pitch of 15 degrees.

Category D: Gable to gable roofs with no hips and valleys up to 6.5m span.

A category B fabricator may not manufacture a category A roof, and similarly a category C fabricator may not produce a category B structure, unless the design has been checked and confirmed in writing by the fabricator’s relevant software system and resident Professional Engineer.

In the case of Public Buildings (as defined by SANS 10400) all roof structure designs must be checked and confirmed by the software system, even if the fabricator is classed by the ITC-SA as a category A graded fabricator.

Nail plate pulling out.

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A FABRICATOR SHOULD THEREFORE:

• Be a professionally registered ITC-SA fabricator member with a current certificate of competence (COC).

• Be able to provide documentation in support of category classifications and design confirmations before the order is placed on the fabricator.

• Be able to prove that a clear and level surface inside his facility is available in order to manufacture both the lengths and heights of the largest truss in the batch or order.

• Assume responsibility for the quality of the manufactured product and prove product liability insurance.

• Prove that the correct storage, transport and erecting procedures are used, as timber trusses can easily bend out of plane during handling, transport and erecting, which may impact the structural integrity of the roof structure. The use of specially designed trailers will always be the preferred method of transport.

INSPECTIONS OF ERECTED ROOF STRUCTURES:

A competent person in terms of SANS 10400 part L (Roofs) is defined as a person who:

1. is registered in terms of the Engineering Profession Act, 2000 (Act no 46 of 2000) or

2. is registered in terms of the Architectural Profession Act, 2000 (Act no 44 of 2000) and

3. is generally recognized as having the necessary experience and training to undertake rational assessments or rational designs in the field of roofs and roofing.

It is a common misconception that the issue of the so-called ‘Engineers certificate’ (or various permutations thereof) for roofs in terms of Regulation A19, Form 4, as contained in SANS 10400 part A, means that the structure is designed correctly and by a person deemed to be competent. This is not necessarily the case, and in the overriding majority of cases it merely confirms that the roof structure has been erected according to the design intent.

The building owner, financier and insurer could assume the risk for a structure that has not necessarily been designed and erected correctly and under supervision of a recognized competent person.

MINIMUM REQUIREMENTS:

By no means of negating any of the preceding issues, as a minimum requirement, the following should be required by the specifier and consumer in order to satisfy both the requirements of the ITC-SA, of Regulation A19 in respect of roofs and the risks assumed by financiers and insurers:

• The issue of a Truss Manufacturers Certificate by an authorized designer of the fabricator who is proved to be competent by virtue of the issue of his certificate of competence.

• Proof of the fabricator’s valid certificate of competence in his applicable category.

• Proof of the fabricator’s defective product liability insurance.

• Confirmation by a competent person who is generally recognized as having the necessary experience and training to undertake rational assessments or rational designs in the field of roofs and roofing that the roof structure has been erected according to the design intent.

• Preferably a fabricator who operates under the SANS 1900 quality scheme (SABS or SATAS) and who is permitted to apply either mark to its manufactured product.

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FINAL THOUGHTS AND GUIDANCE:

The existence of ‘roof truss brokers’ within the South African truss manufacturing landscape raises a number of concerns. The following aspects are contended to be pertinent and deserve particular regard when agreements for the manufacturing of roof trusses are facilitated by roof truss brokers:

• Consumers should comprehensively acquaint themselves with the wording of agreements entered into with brokers.

• Consumers should insist that agreements with or facilitated by brokers contain a clause detailing warranties, insurance and liabilities.

• It remains advisable that agreements for the manufacturing of trusses are entered into between the consumer and the roof truss fabricator directly, to ensure maximum protection for the consumer. However, in the event that a broker does facilitate the related agreement, it is important that the parties related to the agreement include the consumer and the fabricator. Should the consumer and the broker be the sole parties to the related agreement, the consumer may only have right of recourse against the broker and not against the fabricator, leaving the consumer at risk.

“One's philosophy is not best expressed in words; it is expressed in the choices one makes... and the choices we make are ultimately our responsibility” – Eleanor Roosevelt.

FOR MORE INFORMATION, CONTACT:

(c) 082 441 5026 | 0861 LCPROOF(e) [email protected] (w) www.lcproofing.co.za

WE HAVE MOVED! Unit B, Old Cape Road, Hunters Retreat, Port Elizabeth

SUPPLIERS OF TRANSLUCENT POLYCARBONATE SHEETING APPLICATIONS:

INSTALL POLYCARBONATE ROOF SHEETING

CALL US FOR COMPETITIVE PRICING

HARVEST THE DAYLIGHT AND SAVE ENERGY

TEL: 041 453 9835 or 0861 000 818 EMAIL: [email protected] or [email protected] WEB: www.seindustries.co.za

WAREHOUSING | SKYLIGHTS | WALKWAYS CARPORTS | GYMNASIUMS | GREENHOUSE COVERINGS | INDOOR PARTITIONS

JUNE 2014 15

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“We have seen a significant increase in the number of roofing suppliers considering installing their own colour-coating line facilities,” said Jaco de Waal, Business Development Manager at Bronx International.

“Many pre-painted roofing suppliers and their markets are now starting to demand good service from their suppliers and high quality material of which durability is guaranteed,” he said.

The Bronx 'Warehouse' range of lines enables new entrants to colour coating to achieve exactly the levels of quality expected by an increasingly sophisticated market.

The most important aspect of these smaller volume paint lines is to clearly understand that the output product quality is identical to any product produced on a much larger paint line, and Bronx backs up this statement with strong product and performance guarantees.

When considering the line size to meet market requirements, smaller does not mean less in terms of quality and performance. This concept is already proven with Bronx through an extensive reference list and customer testimonials. Two lines are already in place in Kenya and Nigeria.

Some of the more obvious advantages for companies to paint their own galvanised steel or aluminium include: the cost advantages in purchasing galvanised steel or aluminium; a significant reduction in holding stock, both painted and

unpainted; the ability to offer short lead times to end-customers; the flexibility to supply specialised colours in small quantities (no minimum order quantity) and obtain premium price; the ability to enter new markets with new products; and the confidence they have in the quality of their product.

BRONX PRINT

Bronx also offers woodgrain pattern coated coil for walling, which is one of our latest developments embraced by our customers, providing them with a niche market to sell product.

As the market for colour-coated roofing and walling grows, it’s good to know that Bronx has researched the African market and created a range of lines that allows new entrants to enter the market in a cost-effective way. As a company, the quality of products to your customers is essential and having control over inventory and colour choices makes good business sense. As the market continues to grow, the Bronx Warehouse range offers a solution for your business to grow too.

FOR MORE INFORMATION, CONTACT:

Jaco de Waal(t) + 27 82 821 3713(e) [email protected](w) www.bronxintl.com

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Colour your world with coilBronx International has been building coil colour-coating and

galvanising lines in the African market since 1999.

JUNE 201416

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BUIL

DING PROCESS LINES

SIN CE 1999Africa

ininAfrica

Quality Suppliers of:

Colour coating linesGalvanising linesUpgrades to existing linesGalvanising coating control equipmentPattern coatingPaint & chemical coatersTension levellersProcess technology

BRONX INTERNATIONAL email: [email protected] www.bronxintl.com

BRONX INTERNATIONALThe Leading Supplier of Quality Process Lines in Africa

Australian designed, European build

2012 Colour Coating Line Kenya2012 Colour Coating Line Nigeria2012 Galvanising & Zinc /

Aluminium Coating LineKenya

2008 Colour Coating Line Upgrade Nigeria2005 Colour Coating Line Nigeria2005 Colour Coating Line Nigeria2004 Galvanising Line Upgrade Kenya2001 Colour Coating Line Nigeria2001 Colour Coating Line Kenya2001 High Speed Galvanising Line Nigeria2001 Galvanising Line Kenya2000 Colour Coating Line Nigeria1999 Galvanising Line Kenya

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“In short,” says Southern Africa Light Steel Frame Building Association (Sasfa) director, John Barnard, “LSFB allows for almost any design, is more environmentally friendly, and saves significantly on the bottom line.”

An upmarket home in Fresnaye, Cape Town, is yet another example of the efficacy and flexibility of LSFB. “This three-storey 360m² home was initially designed to be built using brick and mortar, but once the client was introduced to the LSFB method there was no turning back,” says Jonathan Pepler, director of Silverline Group, which is well-known for its high profile LSFB projects, such as McDonalds restaurants, Delta Motors show rooms, and, more recently, the Maboneng development in Johannesburg.

Pepler added that the architect, Chris Brown & Associates, supported the change from brick and mortar to LSFB, because it is a “fresh and modern approach to construction and, in particular, because of the positive impact this building method has on the environment.”

Barnard says that, furthermore, LSFB offered specific advantages for this project. “The small size of the plot made it difficult to work with cranes, and storage space for building materials was limited. By using LSF these constraints were overcome,” Barnard says

He adds that as the owners wanted a low carbon footprint for the project and were very focused on ‘going green,’ LSFB was the ideal solution for them, because of its significantly better thermal insulation and quicker completion time with little or no wastage of building materials.

The three-level house amply demonstrates the flexibility of LSFB even in the most creative, upmarket designs. It has three-bedrooms, three bathrooms, an entertainment area with built-in bar, built-in fireplaces and stacking doors that open up to reveal a spectacular view of Sea Point and the Atlantic Ocean beyond. The swimming pool was integrated into the design, as was a large Koi pond with a waterfall.

Internal sliding doors were designed to fit into the wall cavities, saving a lot of usable space. Ceilings all have bulkheads with shadow-line edges, giving the house a modern look. External wooden decks were introduced with glass balustrades. The external walls consist of double light frame walls, which create the desired ‘bulky’ look while increasing the insulation of the structure. A steel staircase winding up the three levels was installed to provide access to all the floors.

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FB

Light steel frame success in Fresnaye, Cape Town

It is true that the light steel frame building (LSFB) method is possibly the fastest growing alternative construction method in Southern Africa. The reasons for this are many, including faster construction and more efficient energy consumption,

both in the construction process and over the life of the structure.

Almost complete.

An upmarket home in Fresnaye, Cape Town, is yet another example of the efficacy and flexibility of the light steel frame building method.

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“Due to the small size of the plot, it was very difficult to work with scaffolding, and using permanent shuttering in conjunction with LSF solved that problem,” Pepler says.

The insulation was supplied by Isover, the steel by Techhomes and the external cladding material by UFCC. Silverline Group was the main contractor.

The complete project took six months and an overall saving of 30% in construction time was achieved. Barnard says the owner could not wait to move into their new ‘green’ house. “It is not that often that a builder and his clients are on a good footing after the build. This time, however, the owner even recommended the use of LSFB to friends. In fact, the project across the road was initiated by a friend of the owner, who was so impressed with the speed and the quality of the LSF building method, that he will now use Silverline Group for an LSFB solution.”

Barnard says that as the Southern African market increasingly realises that LSFB can be used for a range of different applications and takes into account the considerable benefits, both practical and financial, of this building method, perceptions about traditional building methods being the only viable options are being questioned. “There are more and more local examples of striking buildings that are being built with LSFB,” he concluded.

JUNE 2014

View from house.

View down onto pool.

31356 - FA Hulamin Roofing Advert.indd 1 2014/04/15 11:17 AM

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The milestone was marked at an event held in Johannesburg on April 10 by the Green Building Council South Africa (GBCSA), which was established

in 2007 to lead the transformation of the property sector by ensuring that all buildings are designed, built and operated in an environmentally responsible way.

The event was attended by Green Star SA project owners, accredited green building professionals, sponsors of rating tools used to develop and assess buildings, and representatives of property industry groups.

Developers of the 50 certified projects expect their buildings will result in significant annual savings of 76 million kilowatt hours (the amount of electricity needed by 5 300 households for a year), 115 million kilograms of carbon emissions (equivalent to taking 28 000 cars off the road), and 124 million litres of water (sufficient for 34 000 households for a year).

“Reaching 50 certifications illustrates the commitment the South African commercial property sector has shown towards resource efficiency and climate change abatement, while creating healthier and more productive environments for us to work and live in,” says Brian Wilkinson, CEO of the GBCSA.

“The GBCSA could not have achieved the success it has to date without the support of some very big players in the sector that have pioneered the way to a better future for people and planet. The 50 certifications celebratory event honoured and thanked these leaders for their valuable support.”

Globally, the built environment is responsible for one third of all carbon emissions and with global warming a very real concern that affects us all, a shift in focus to green building is something that should be foremost in everyone’s minds – from government, to developers to the average man in the street.

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celebrates 50 Green Star SA certifications

South Africa’s green building movement has gained significant momentum with the achievement of 50 Green Star SA certifications in only six years.

Alice Lane, Sandton.

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According to McGraw and Hills’ World Green Building Trend survey (2013), 51% of South Africa firms expect to be building green by 2015 – most notably in the commercial markets. This suggests that outside investors, developers and owners will have an ongoing, important role to play in the ongoing green building groundswell.

Going green is not just about the environment; the bottom-line benefits of building and operating green buildings are particularly important considering South Africa’s rising energy costs and water scarcity – coupled with lower risks, improvements to employee productivity and ultimately, better investment returns and higher property valuations.

“We are absolutely thrilled by the uptake in green building in South Africa. In the past few months the number of buildings that have been certified, or which have applied for certification, has increased exponentially – with 20 buildings being certified in 2013 alone. We are confident that this upward spike will continue as an ongoing trend as increased market demand and clear financial rewards, coupled with mounting government regulations and shareholder pressures, provide multiple incentives to own and occupy high-performance green buildings,” concludes Wilkinson.

FAST FACTSPredicted performance of the 50 certified green building projects is impressive. These predictions are based on certification submission documentation.

WATER: Predicted water savings if the 50 certified projects are operated as their designs intended (numbers rounded off):

• 124 million litres per annum of water.• 250 million litres predicted to have been saved to date by these buildings since

they were built.• The average predicted potable water savings of these projects is 48% more

efficient than the reference case, which is based on Wels Two Star fittings – (viewed as typical standard practice).

124 million litres per annum of water saved is equivalent to approximately:

• The volume of drinking water consumed by the South African population in one day (given 50 million people each consume 2.5 litres).

• Enough drinking water for 34 000 households every year (2.5 litres/day for a family of four).

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JUNE 2014

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Page 24: SA Roofing June 2014 | Issue: 60

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ENERGY: Predicted energy savings if the 50 certified projects are operated as their designs intended (numbers rounded off):

• 76 million kWh per annum of energy predicted to be saved by these buildings.

• 167 million kWh predicted to have been saved to date by these buildings since they were built.

• The average predicted energy saving of these projects is 34% more energy efficient than the reference case, which is based on SANS 10400 Part XA – the legal standard for energy use in buildings.

76 million kWh per annum of energy saved is equivalent to approximately:

• The energy needed by 5 300 households per annum.• The energy needed to boil 1.4 million kettles of boiling

water per day for a year.• 1-2% of what a large-scale power station might produce in a

year. Thus, the amount of electricity saved by 2 500-5 000 green buildings

GREEN HOUSE GAS EMISSIONS: Approximate kgCO2 savings from the 50 certified projects:

• 115 million kgCO2 predicted to be saved per annum.• 250 million kgCO2 predicted to have been saved to date.• The average predicted kgCO2 emissions savings of these

projects is 57% more than the reference case, which is based on SANS 10400 Part XA, the legal standard for energy use in buildings.

Note: The kgCO2 numbers take renewable and on-site energy generation into account where relevant, whereas the kWh energy savings numbers exclude on-site generation.

115 million kgCO2 is equivalent to approximately:

• Taking 28 000 cars off the road per annum (medium-size car with annual mileage of 15 000km).

• 6 000 full Boeing flights from Cape Town to Johannesburg (one way).

CONSTRUCTION WASTE:50% on average of construction waste diverted to landfill. Construction waste is approximately 15-30% of the total amount of waste that ends up in landfill.

DAYLIGHT:On average, 30% of usable area has adequate daylight, creating a healthier and more productive environment, and allowing opportunity for switching off artificial light sources.

FRESH AIR:On average, provide 100% more fresh air than standard practice, creating healthier and more productive environments.

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JUNE 201422

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Page 25: SA Roofing June 2014 | Issue: 60

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Page 26: SA Roofing June 2014 | Issue: 60

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Don’t ponder when choosing a roofMake the right choice first time and install the Owens Corning High Performance Shingle Roofing System.

Page 27: SA Roofing June 2014 | Issue: 60

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You need a roof covering that offers a complete package, ensuring that your building and its contents are secure and safe with the added advantage of looking good.

From flexibility in design features, combined with vibrant colour and style options for standard roof construction, the result is always the same: The view from the road just got better.

‘Curb appeal’ plays a major role in what designers like to present to their clients. Our Shingle Roofing System allows freedom of expression, with superb results when applied to complicated structures, all installed via a network of certified installers. Domes and ‘rondawels,’ sweeping curves, inverse pitches, rounded and pitched dormers have easily been achieved with great visual effect.

A minimum pitch of 11 degrees is recommended, but lower slopes can be achieved with additional waterproofing systems. Vertical cladding is also erected.

The system does not leak or fade, roof voids are dust free and due to the inherent colourfast bead finish, the maintenance of the roof is minimized.

Algae growth on roofs is a problem in many areas, specifically in coastal regions, but the Owens Corning High Performance Shingle Roofing System is not affected by this or corrosive elements. Fixing systems employed are selected according to their suitability for the geographical areas of installation.

Buildings such as hospitals, libraries, learning institutions and churches are all susceptible to noise, and acoustics play an integral role in the design of the building. In these applications, the System is evidenced to aid noise reduction.

The Owens Corning Shingle Roofing System withstands wind speeds of up to 220kph and the new Duration range of shingles, which introduces the patented Surenail® and Trubond® technologies, gives even greater stability and cohesion to the roof. No blow-offs or disruption to activities relative to the occupancy of the building.

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Roofs where our System has been installed incurred minimal damage to the exterior shingle covering during extreme hail storms recently experienced in Gauteng. Neither the interior, nor contents of the buildings incurred any damages, resulting in no hassles, no downtime, and a blessing to the occupants and the insurers alike.

In this day and age, security is of great value to any building and the inaccessibility through our roofing system, due to the OSB boarding, which covers the whole roof structure, secures the roof void from intrusion and adds a safety feature to an attractive roof.

Three independent authorised testing facilities have endorsed the product due to results achieved for fire tests conducted to International Standards and codes of Practice.

We replace thatched roofs utilizing the existing roof structure with our Shingle Roofing System. Existing sheeted roofs that are in need of replacement are revamped utilizing the Shingle System without removing the existing roof covering.

Energy efficiency is a top priority for the construction industry and through rational design or deemed-to-satisfy methodology, we achieve the desired results, whether in the traditional ceiling or fashionable cathedral type design. The System incorporates our Patented ‘Ventsure’ technology, allowing natural ventilation through the attic space to exhaust through the ridge, keeping the roof void cool and allowing for a comfortable interior.

Relax. We give you peace of mind.

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JUNE 2014 27

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Product attributes: • Bold colours• More contrast• Enhanced protection • Aesthetic appeal • Security benefits• • Lightweight (22kg per m2)• Versatility in design • Ease of erection • High wind resistance• UL A1 fire rating

Owens Corning’s High Performance Shingle Roofing System

Page 31: SA Roofing June 2014 | Issue: 60

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Page 32: SA Roofing June 2014 | Issue: 60

For the past five years, the company’s technical service team has been introducing the local construction industry and DIY homeowner to the benefits of the

advanced building technology additives, sealants, adhesives and concrete performance chemicals that are available from the international Mapei Group. Offering market-leading performance and handling advantages, Mapei’s 1400 products are recognised throughout Europe, America and the Far East.

For waterproofing a typical flat roof, balcony or terrace, curved roof, guttering and downpipes, Mapei offers convenience in a 20kg drum in the form of Aquaflex Roof, a ready-to-use flexible liquid membrane containing fibres for continuous waterproofing layers on exposed external surfaces. The versatile, easy-to-use product may be applied to concrete, ceramic and stone coatings, cementitious screeds, asbestos cement, bitumen sheaths, wood, and even galvanised sheet, copper, aluminium and iron after applying Mapei Eco Prim T primer.

Once dry, Aquaflex Roof is tough enough to withstand occasional light foot traffic, and flexible enough to cope with normal temperature variation expansion and contraction stresses. The product is resistant to all atmospheric conditions and UV radiation, and provides long-lasting protection for the substrate.

Where there is a focus on the sustainable thermal efficiency of a building, the solution is Aquaflex Roof HR, a ready-to-use, fibre-filled liquid membrane with a high solar reflectance index (SRI) of 105.

The white-coloured product lowers the surface temperature of the roof by more than 50% compared with a dark coloured covering. This contributes to a building’s Green Star SA rating by reducing the heat island effect of roofs.

WA

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World-class waterproofing solutions from Mapei

Mapei South Africa has well-proven solutions for all waterproofing challenges with its comprehensive range of Mapei waterproofing products.

Aquaflex Roof HR is a ready-to-use waterproofing product with high solar reflectance.

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For any successful waterproofing job, 90% of the attention needs to be paid to 10% of the area: the corners, the joints, the cracks and the fillets between horizontal and vertical surfaces. Mapei’s research and development into elastic waterproofing systems has produced Mapeband SA, a user-friendly, long-lasting solution for these awkward-to-seal areas. Mapeband SA is a self-adhesive butyl rubber tape with alkali-resistant non-woven fabric bonded on the outer surface to provide excellent adhesion for the waterproofing membrane that will be applied over it.

Mapeband SA has excellent adhesion to virtually any type of absorbent and non-absorbent substrate and gives immediate protection against heavy rain. Typical applications include waterproofing corners and fillets between walls and floors on terraces, balconies and in bathrooms and showers; sealing the joins between different types of material, such as bitumen membranes, metal, ceramic and cementitious screeds; and those hard-to-reach fillets between windows and door fittings, ledges and substrates. The ideal solution for flexibly sealing and waterproofing expansion joints and any cracks that are subject to movement is Mapeband TPE.

“Mapei’s unrivalled research and development produces user- and eco-friendly products that enable us to offer our South African customers world-class solutions for any waterproofing needs,” says Paul Nieuwoudt, Mapei South Africa’s Product Manager for Building Systems. “We can provide an optimum solution for a wide range of structural and environmental conditions and ensure a long service life result.”

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JUNE 201432

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TRADE EXPOBOOKINGS NOW OPEN

Email:[email protected]

Proudly hostedby theSouth AfricanInstitute of Architects

Delegate Registration Fee: R5 500 (until 30 June) R6 500 (from 01 July)

Student Registration Fee: R750

To REGISTER and for CPD information, visit www.uia2014durban.org

Page 36: SA Roofing June 2014 | Issue: 60

Based in Boksburg, a.b.e. is part of the Chryso Southern Africa Group, and sole South

African technical distributor of the renowned Dow Corning range of structural glazing sealants which are imported from the DC factory in Belgium.

Samantha Ferreira, a.b.e. Sales & Segment Manager: Silicones, Sealants and Specialist Adhesives, says the most recent Johannesburg project for which Dow Corning 123 silicone tape was used was for the repair of failed weather seals to the domes and two entrances to Southgate Shopping Mall, south of Johannesburg.

Aquaproof Projects was the applicator for the Southgate project which called for 7 015 running metres of DC 123 tape, 38mm in width.

OTHER JOHANNESBURG PROJECTS WHERE DOW CORNING 123 SILICONE SEALANT WAS SUCCESSFULLY USED INCLUDE:

• The atrium of Webber Wentzel House in Illovo

• The atrium of 55 Marshall Street in the Johannesburg CBD

• Glazed areas of the atrium of the old headquarters of Paragon Architects in Milpark

• The glazed dome of the SA Football Association at FNB Stadium, south of Johannesburg

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TS Southgate latest repair

project for Dow Corning 123 silicone sealant

a.b.e. Construction Chemicals has supplied Dow Corning 123 silicone sealing tape for the weatherproofing of glazed areas of several high

profile structures in Johannesburg.

JUNE 201434

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Ferreira says that the name of Dow Corning ‘123’ Silicone Seal illustrates the ease with which the product handles otherwise costly and laborious repairs. “The application of 123 tape needs to be carried out by an approved and trained applicator to ensure correct, skilful application. 123 tape is suited for both installing a new seal or repairing an old, failed one. For remedial applications, there is no need to cut the old seals – a costly labour-intensive process, which can severely damage wall cladding systems. Dow Corning 123 therefore not only stops leaks, but also saves in labour time and costs,” she explains.

Dow Corning 123 Silicone Seal extrusions are available in various widths and colours and can be custom-designed on request.

FERREIRA SAYS THE PRODUCT IS IDEAL FOR A WIDE VARIETY OF REMEDIAL AND NEW CONSTRUCTION APPLICATIONS. DC 123 CAN COST-EFFECTIVELY:

• Repair failed building weather seals

• Restore Exterior Insulation Finish Systems (EIFS)

• Seal thin metal curtain walls• Solve aluminium window problems• Seal joints subject to extreme

movement• Seal parapets, wall intersections,

coping joints and transitions, skylights, and window perimeter joints

• Form tough, flexible flashings• Create special aesthetic effects

A 15-year crack, craze, crumble warranty is available from Dow Corning on all its products.

a.b.e. approved applicators, Burger Emonyeni, handled the Webber Wentzel House and SAFA contracts, and Arresting Access (another a.b.e. approved applicator), was the applicator for the 55 Marshall Street project and the atrium at Paragon Architects projects.

a.b.e. Construction Chemicals supplied Dow Corning 123 silicone tape for the repair of failed weather seals to the domes and two entrances to Southgate Shopping Mall.

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The Devland Community Centre will serve as an education and community facility that is sponsored entirely through donations. The project is being led by

Growing Up Africa (GUA), a USA- and South Africa-based non-profit organisation that encourages companies to become involved in social responsibility projects.

GUA identified a select group of individuals and companies to donate a variety of professional disciplinary services both locally and in the USA. SMEC South Africa structural engineer, Effort Mokoena, says that the company has teamed up with other sponsors to promote social responsibility through sustainable development by sharing skills, leveraging resources and enlisting the help of volunteers.

"As part of its commitment to corporate social responsibility and investment, the South African division of global consultancy firm, SMEC, has agreed to provide its professional services, as lead civil and structural design engineers, on a pro bono basis," he explains.

The joint collaboration between SMEC South Africa and GUA is dedicated to improving the lives of those in communities where infrastructure, education and community facilities are lacking, particularly in impoverished areas.

The site of the Devland Community Centre covers an area of 7 000m2, of which the educational facility features 2 000m2. It will include two main auditoriums, two classrooms and a management office, in addition to an ablution area and a kitchen with a cafeteria.

The building frame is made up of a reinforced concrete slab with strip foundations, concrete columns and steel columns, as well as a reinforced concrete roof which includes built-in box gutters and downpipes built into the walls.

"The design features floating cantilever concrete roof slabs around the perimeter of the building. Other design items include a 440mm thick double sand bag eco-wall to the west, together with a 6m deep glass façade wall with a perforated 6m roller shutter door. The eastern section of the building will include louvered walls, masonry and partition walls and drop down ceilings," explains Mokoena.

When officially opened to residents, the Devland Community Centre will be managed through a Trust formed between the community and the site owner, Golden Triangle Development Corporation (GTDC), which has approved all the rights for the construction of the project, which began in 2014.

AR

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underprivileged communitiesResidents from underprivileged communities in Soweto are set to

experience a dramatic improvement to their overall standard of living, thanks to the establishment of the Devland Community Centre.

JUNE 201436

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The Association is now truly representative of the African continent, enjoying membership in Botswana, Namibia and Zimbabwe, not to mention European

countries, such as Denmark, England and Germany. Moreover, membership enquires have been received from Kenya, Zambia and Nigeria, the Ivory Coast and Saudi Arabia.

CMA executive director, Wally Armstrong, says that the growth in membership stems from the Association’s broader qualification criteria. “We are now streamlined into two operating pillars, Precast Building and Precast Infrastructure, unlike in the past when membership was dependent on complying with one of the former six product categories. Membership is open to any precast manufacturer, provided certain quality-based criteria are met, and all members now fit into either one or both of the operating pillars, depending on the nature of their businesses."

“In addition, we have five categories of membership, producer, non-producer, associate, contractor and cement producer members.”

Armstrong concluded by saying one of the main benefits of CMA membership is that it is an association which is widely recognised and respected for setting and maintaining best-practice standards.

CMA membership grows by 30

Since a new membership drive began in November 2012, the

CMA’s (Concrete Manufacturers Association) membership has met with considerable success, adding

30 new members.

CMA executive director, Wally Armstrong.

JUNE 2014

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In his Executive Director’s Review for 2013, tabled at the recent Annual General Meeting

of MBA North in Midrand, Mphomela says the move towards increasing Associate Membership is likely to be driven by a ‘Fellowship System’ whereby new members commit to a 12-month training or orientation period, in which the “embedded deep values of MBA North, its expectations and operations are conveyed to help these emerging builders qualify to become full members.”

Mphomela says it is essential that MBA North should be relevant – and stay relevant – to members. “This means regular contact and visits to our members to ensure that we listen and hear their needs, concerns, fears, expectations and work according to a philosophy I call ‘the three Ms’: Membership growth, membership retention, and membership challenges.”

“With the significantly extensive geographical footprint of MBA North, it is imperative that we enhance members’ experience through escalation of their feeling of ‘belonging’ to rejuvenate and liven up their participation.”

He says MBA North wants to strengthen its ties and relations with the provincial and local authorities of the four provinces in which the Association operates to help the various governments on their infrastructural development and the rolling out of budgeted construction programmes in the areas under their jurisdiction.

To effectively address the challenge of the huge geographical area MBA North covers (Gauteng, Limpopo, Mpumalanga and North West Province), MBA North has decided to establish a network of ‘industry champions’ – comprising current members in these regions who will actively encourage new members by word of mouth in a planned and well-orchestrated strategy.

“The concept will be driven by a Business Development Director. The ‘championing members’ will be key players in all MBA North social, business and training events. They are better placed to identify potential new members and will play a mentoring and advisory role in encouraging new members.”

“We would also like to grow and expand our Legal Division in the near future to offer increased legal and tax consultations at a fairly reasonably cost to our members in addition to the registration of artisans and tradesmen.”

At the AGM, several members present also urged MBA North to “start giving benefits back to members” through every possible means. Particularly strong proponents of this concept and supporting Mphomela’s philosophy of ‘making the member king’ were past president, Nico Maas, who officially raised the matter at the meeting, and newly elected president, Lea Smith, who mentioned it in his inaugural address.

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contractors to become fully-fledged members

Master Builders Association North is planning to encourage and nurture ‘associate members,’ particularly emerging contractors, to become fully-

fledged members of MBA North, says Mohau Mphomela, Executive Director of the Association.

Mohau Mphomela, Executive Director of MBA North (second from left), pictured after the MBA North annual general meeting, with some of the Association’s new Executive Committee Members.

From left: Ian Duncan (Kevin Bates Flooring & Carpeting), Rose Tsenase (Bashoeshoe Projects), Maria Sono (Thabi Mari), and Simon Linakane (Gauteng Piling).

JUNE 201438

For more information and our product range please contact us: TEL: 0861 328 546 | [email protected] | www.datlink.co.za

Page 41: SA Roofing June 2014 | Issue: 60

CALL 0861 727 663 TO BOOK YOUR

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EJOT® The Quality Connection

Page 42: SA Roofing June 2014 | Issue: 60

Chryso SA is part of the Chryso Southern Africa Group.

Hannes Engelbrecht, Chryso SA General Manager: Marketing, says the highly unusual and innovative aspect of the new ChrysoDem release agents is that they have been designed to meet the need of specific industries and applications.

“Choosing the appropriate release agent may be critical to the success of a project, as it affects both the quality and colour of the surface finish. The cost of a release agent is low in proportion to the formwork or mould itself, so simply choosing the cheapest release agent available on the market, is false economy.”

“The top quality release agents in the ChrysoDem range may cost a little more, but provide greater coverage, are easier to use, and add consistent quality to the production line. This is important, particularly in the precast industry, where high temperature steam curing forms a formidable challenge in the production process.”

“The new range is a revolutionary development for South Africa, long-awaited by industries, which, for years, have had to use ‘one-size-fits-all’ mould release agents. ChrysoDem, which is locally manufactured by Chryso SA at its production plants in Gauteng, KZN and the Western Cape, also includes a vegetable-based, environmentally-friendly release agent,” he states.

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New ‘application-driven’ range of mould release agents

from Chryso SAChryso South Africa has launched a new range of ‘application-driven’ mould release agents for the concrete industry which has been widely

welcomed at product launches throughout South Africa.

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Mould release agents are primarily used to assist in the clean, easy release of moulds or formwork from concrete, without damaging the concrete or moulds or formwork. “In order to achieve satisfactory results, it is imperative to choose the correct release agent for specific applications. The new ChrysoDem range features different types of release agents as required for moulds made of metal, such as steel and aluminium; wood, such as timber, plywood, resin ply, and shutter board; and also for moulds made from plastic, polystyrene, rubber, latex, and fibreglass.”

In addition to the clean and easy release of the mould or formwork from concrete, some other advantages of the ChrysoDem range include:

• Protecting and extending the life of the formwork/mould• Reducing the likelihood of imperfections and surface damage (particularly blow

holes) to the concrete, to create more durable and attractive concrete surfaces• Eliminating staining and colour changes• Plaster, paint and other coatings may be applied subsequent to the mould removal,

as ChrysoDem release agents do not adversely affect adhesion of finishes and coatings applied to the concrete

• Water repellent and not affected by rain• No effect on the hydration of concrete• Ready-to-use release agents which reduce the possibility of errors during mixing • Two-year storage life for virtually all the new release agents

“The ChrysoDem range includes ChrysoDem Bio 10, a vegetable-based, bio-degradable and non-toxic release agent which will not pollute the environment and has a low odour, and is therefore safe to use in confined spaces, such as mining, tunnelling, and any poorly ventilated area. Most of the other products in the ChrysoDem range are also safe to use, have a low odour, and comply with regulations for the transport and disposal of hazardous materials,” Engelbrecht added.

The ChrysoDem range includes ChrysoDemElio LSM which significantly reduces blow holes because its low viscosity (thin) oil creates less surface tension against the sides of the mould and therefore allows air bubbles to escape. ChrysoDemElio SP can handle the high temperatures of steam curing and provides rust prevention. ChrysoDem Oleo FW is a mineral-based release agent suitable for all types of formwork and ideal for formwork suppliers. Other products cater for the heavy precast sector (e.g. pipe manufacturing), light wet and dry precast demoulding operations, and decorative concretes. A wax based version, ChrysoDem WB, is ideal for wooden moulds and prevents the veneer on shutter boards from delaminating.

“There has been exceptionally positive response from the concrete industry to this new range which Chryso SA is planning to export to the rest of Africa as well,” Engelbrecht adds.

Chryso SA has launched a new range of ‘application-driven’ mould release agents for the concrete industry. Mould release agents are primarily used to assist in the clean, easy release of concrete from moulds or formwork.

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Michell says increasing reports are being received of contractors having to wait several weeks to start construction projects because of delays in obtaining

client approval of the Health & Safety plans submitted by the contractor in response to the requirements presented by the client’s representative. “There are disturbing allegations of contractors being warned that the Health & Safety plans they have laboriously compiled will achieve no more than, say, 20% of the required standards and that it would be better for the contractors to purchase a so-called ‘Health & Safety File’ from the consultant – usually at an exorbitant fee.

“The contractor may be a specialist contractor who has taken the time and effort to develop specific risk assessments and other relevant documents drawn up with the help of experts in their fields – which the consultants now recommend rather be replaced by a generalised Health & Safety File he or she can sell to speed matters up. This expensive, pre-packaged Health & Safety File would normally have been compiled by a generalist, often with limited insight into a particular project’s associated risks – and whose priority and expertise lie mainly in satisfying the client’s Health & Safety agent.”

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files endanger construction workers, MBA North warns

Purchasing generalised, non-specific – yet expensive – ‘Health & Safety Files’ from consultants to expedite the start of building projects has become a

‘menacing monster’ threatening building sites, Doug Michell, Master Builders Association (MBA) North Construction Health & Safety Manager, has warned.

To hasten commencement approval, generalised and expensive Health & Safety Files are threatening to replace specifically planned Health & Safety Plans on building sites, MBA North has warned.

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Michell says this alarming tendency totally negates the Construction Regulations’ quest for ‘project specific’ Health & Safety specifications, taking the relevant project’s specific factors into account when the Health & Safety specifications are drafted. Such factors may include:

• The scope of the work and what is being built• Location of the site and elements specific to the location,

such as municipal by-laws, weather factors, or geographical factors

• Geo-technical reports containing findings regarding soil conditions, and other issues that may hinder the project progress

• Baseline risk assessments based on the scope of work, e.g. is this a high-rise building in a built-up area, or a greenfields site?

• Controls specific to the client’s requirements, e.g. two-day induction periods, colour of overalls, and entrance to existing premises.

“When a client appoints a principal contractor with the ‘necessary resources and skills’ this should include the premise that this contractor complies with South African law as a minimum, and that the Health & Safety specifications to be followed will not just be a regurgitation of the Basic Occupational Health and Safety Act and Construction Regulation requirements, pre-packaged and sold as an all-purpose Safety File. A specific Health & Safety Plan should be a far more comprehensive document than just a standard Health & Safety File with copies of monthly inspection reports and minutes of meetings.”

He says discussion and negotiations regarding the safety plan’s content should take place between the parties concerned before final approval of the plan for implementation at commencement – and for the duration – of construction work.

“However, recent experiences suggest that the off-the-shelf Health & Safety File is becoming so preferred and acceptable that some observers believe the contractors’ specially compiled Health & Safety Plan is not even read by the client’s Health & Safety agents.

“This was surely not the intention of the legislator who first initiated the principles in the Construction Regulations in July 2003, and now redefined the requirements in the recently promulgated amended Construction Regulations 2014. Eleven years on, we now have Health & Safety Files that have become menacing monsters to threaten the lives and health of site workers. The generalised File has become an instrument of frustration for many and a healthy source of income for far too many peddlers of these potentially dangerous documents which, with their bureaucratic approach, prescribe in advance, rules and instructions which are often impossible to implement, let alone enforce.”

“The time has come for practising Health & Safety practitioners to reflect on this ominously fast-growing Health & Safety File syndrome and ask ourselves if, in its current form, these Files are helping to protect life and limb – or endanger it,”

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Addressing a Department of Labour Health Accord in Pretoria recently, Deryck Spence, executive director of SAPMA, said, “The paint industry will continue to

follow its Code of Conduct, but we want – no, we demand – cooperation from the government to assist us in enforcing the existing legislation against offenders. We object to constantly being vilified for producing leaded paint and reading in the press that our industry is causing ‘poison to drip from walls’ – without the government keeping its promises to prosecute offenders.”

Spence repeated his plea to government to ‘name and shame’ offenders, and take legal action against any party – whether a SAPMA member or not – who makes or sells paint with illegally high leaded content.

“SAPMA can coordinate our members – who represent a sizable proportion of the paint industry – but we cannot eliminate the use of lead in the industry without the assistance and cooperation of the appropriate government departments. We again confirm that we are committed to continue to endorse the Safety Accord that we willingly signed recently, but the responsibility of the government has to be fulfilled in making sure that the legislation – in this case, the Hazardous Substance Act – be monitored and implemented to the point of naming and prosecuting offenders, even if it means the prosecution of SAPMA members. That is the only way we are going to succeed in eliminating lead in paint.”

“There is no sense in the government conducting dozens of tests and investigating numerous cases of breaches of the Act unless the offenders are not only identified, but also prosecuted,” Spence told the meeting.

He said SAPMA had also asked the government to conduct an investigation into the supply and use of methanol in products sold to the public. “The commonly used DIY product, lacquer thinners, sometimes contains up to 32% methanol, which is poison that can lead to death if unwittingly consumed by a child. The use of methanol in thinners is favoured, because it is cheaper than safer alternatives. Yet again, in this instance also, there has been absolutely no action from the government.”

Spence said SAPMA was now well and truly tired of promises of action by government which fail to materialise while governmental accusations against the paint industry continue relentlessly.

The meeting subsequently decided that the Department of Labour would arrange a special meeting to strategise a way forward. The Council of SA Trade Unions, represented at the meeting by its Policy Coordinator Occupational: Health Safety and the Environment, Jacqueline Bodibe, requested that COSATU be included in this proposed meeting.

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S Government relentlessly vilifies coatings industry without acting against leaded paint offenders,

SAPMA claimsThe SA Paint Manufacturing Association (SAPMA) has lodged its strongest

objection to the government’s continuous condemnation of the paint industry for producing leaded paints while still neglecting the governmental

prosecution of offenders SAPMA has been pleading for.

Deryck Spence, executive director of SAPMA: “SAPMA now demands governmental prosecution of offenders who are still illegally

producing leaded paint.”

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“Interbuild Africa 2014 is pleased to announce that it has solidified partnerships with a number of respected industry bodies, including the National Homebuilders Registration Council the South African Bureau of Standards, South African Institute of Architects and the Association of Quantity Surveyors,” says Gary Corin, Managing Director of Specialised Exhibitions Montgomery.

Interbuild Africa 2014 will include a number industry-relevant conferences, offering delegates the opportunity to hear insights from top industry professionals while gaining Continuous Professional Development (CPD) Points. These conferences are being hosted by: South African Light Steel Frame Building Association (SASFA), Association of Quantity Surveyors South Africa (ASAQS), South African Glass Institute (SAGI), South African Glass and Glazing Association (SAGGA), as well as Association of Architectural Aluminium Manufacturers of South Africa (AAAMSA). For the first time in its history, the Master Builders Association of South Africa will also be hosting its annual board meeting at Interbuild Africa this year.

Interbuild Africa, together with its co-located events – Glass Expo Africa, Plumbdrain Africa, EcoAfribuild and Hardex Africa – constitute the biggest building and construction expo in Africa. This year’s event is taking place from 20-23 August at the Johannesburg Expo Centre in Nasrec.

The free-to-attend seminar programme will include an overview of the new BEE codes, current economic trends, updates to occupational health and safety regulations, and the latest developments in green building, and how to improve the energy efficiency.

Corin goes on to say that Interbuild Africa 2014 has also partnered with leading brands, such as Builders Warehouse, to deliver a host of exciting competitions at the event.

“Some of our industry body partners have also committed to launching a number of student award initiatives, all aimed at encouraging new innovation from the young blood in the industry,” he added.

“We’ve already noted a significant increase in stand sales for Interbuild Africa 2014,” says Corin. “It’s clear that our exhibitors are feeling positive about market conditions and have identified Interbuild Africa as the ideal platform from which to launch their new innovations to market,” he added. “Interbuild Africa 2014 has been tailored to meet industry expectations and we are raising the standard of this event to meet the demands of a growing sector,” concluded Corin.

Interbuild Africa 2014 will take place from 20-23 August 2014 at the Johannesburg Expo Centre in Nasrec. For further information or to book your stand, visit www.interbuild.co.za.

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new partnerships for 2014Interbuild Africa 2014 will be supported by some of the leading industry associations in South Africa when it opens its doors in August this year.

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Page 50: SA Roofing June 2014 | Issue: 60

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