Norex ® – H Norex ® – L Technical Data Sheet ARCHITECTURAL PANEL WITH POLYISOCYANURATE CORE 1.1 INTRODUCTION Norex ® architectural panels are high-energy-efficient insulated panels designed for building envelopes. Norex ® panels are available in three versions : • Norex ® – L for vertical mounting on exterior walls, with an offset joint that conceals the fasteners. It can also be used for interior ceilings. • Norex ® – H for horizontal mounting on exterior walls, with a joint that conceals the fasteners. This type has a ” W x ¾” D (9.5 mm x 19 mm) or ¾” W x ¾” D (19 mm x 19 mm) fluting that can be used to achieve different architectural effects. • Norex ® – S straight joint for interior partition applications. Norex ® panel stand out as the result of a number of innovations, including a pressure-equalized rainscreen delivering triple protec- tion against infiltration. A factory applied butyl sealant inside the joint cavities guarantees air-tightness on the full length of each joint. The heavy-duty fastening system has 12-inch-long fasteners, which allow the load to be spread over a greater surface area and increase resistance to wind loading. The polyisocyanurate core delivers an outstanding insulation rating and, with the uses of pen- tane as blowing agent, is environmentally friendly in that it does not add to the depletion of the ozone layer and has negligible impact on global warming. The core also provides superior fire- resistance performance. Norex ® panels can be found in a variety of applications : • Industrial and commercial buildings • Cold-storage and controlled-environment buildings • Sports centers • Interior partitions • Suspended ceilings with limited load-bearing capacity The panels comprise two steel sheets that sandwich an injected mixture forming a polyisocyanurate foam (PIR). This polyurethane derivative provides superior fire resistance. Cutting-edge and high-precision technology makes this continuous manufacturing process possible, while laser-controlled injection ensures insulation uniformity.
Transcript
norex® – Hnorex® – l
Technical Data SheetarCHiteCtUral Panel WitH PolyisoCyanUrate Core
1.1 introDUCtion
norex ® architectural panels are high-energy-efficient insulated panels designed for building envelopes. norex® panels are available in three versions :
• Norex ®– L for vertical mounting on exterior walls, with an offset joint that conceals the fasteners. It can also be used for interior ceilings.
• Norex ®– H for horizontal mounting on exterior walls, with a joint that conceals the fasteners. This type has a
” W x ¾” D (9.5 mm x 19 mm) or ¾” W x ¾” D (19 mm x 19 mm) fluting that can be used to achieve different architectural effects.
• Norex ®– S straight joint for interior partition applications.
Norex® panel stand out as the result of a number of innovations, including a pressure-equalized rainscreen delivering triple protec-tion against infiltration. A factory applied butyl sealant inside the joint cavities guarantees air-tightness on the full length of each joint. The heavy-duty fastening system has 12-inch-long fasteners, which allow the load to be spread over a greater surface area and increase resistance to wind loading. The polyisocyanurate core
delivers an outstanding insulation rating and, with the uses of pen-tane as blowing agent, is environmentally friendly in that it does not add to the depletion of the ozone layer and has negligible impact on global warming. The core also provides superior fire-resistance performance.
norex ® panels can be found in a variety of applications :
• Industrial and commercial buildings
• Cold-storage and controlled-environment buildings
• Sports centers
• Interior partitions
• Suspended ceilings with limited load-bearing capacity
The panels comprise two steel sheets that sandwich an injected mixture forming a polyisocyanurate foam (PIR). This polyurethane derivative provides superior fire resistance. Cutting-edge and high-precision technology makes this continuous manufacturing process possible, while laser-controlled injection ensures insulation uniformity.
1.2 | General Presentation
1.2 inteGrateD PressUre-eqUalizeD rainsCreen
Water infiltration can cause major problems to wall systems and shorten building life. The rainscreen concept is largely used with curtain-wall systems to control potential water infiltration. Quite some time ago, Norbec Architectural adapted this concept to Norlam® panels and, more recently, to Norex® and Noroc® panels.
A pressure-equalized rainscreen provides a double barrier in controlling water infiltration. The first involves sealing the panel joint in the exterior overlap with a continuous bead of butyl applied at the factory. In the unlikely event that water does infiltrate by capillary action, it cannot get beyond the equalization compartment in the joint. This cavity is open to the exterior of the building via the weep hole at the base of the panel. The pressure equalizes with that outside, which prevents water from being aspired inward, as can often result from the building’s normally negative pressure. The water that would otherwise infiltrate is directly outward through the weep hole at the base of each panel, which constitutes the second line of protection.
The integrity of the building’s vapor barrier is achieved by using a second continuous bead of butyl in the interior overlap applied at the factory. Even should the seal on the inner side fail, the suction effect between the building’s outer and inner sides is canceled by the pressure-equalization cavity.
Factory sealing the exposed polyurethane faces in the joint with a plastic film eliminates all risk of water infiltration in the insulation. This film also minimizes the loss of insulating gas in the polyurethane cells, which is an issue with this type of product.
1.3 norbeC arCHiteCtUral exClUsive Fasteners
When construction involves prefabricated insulating architectural panels with superior rigidity, it is usually possible to increase girt spacing with respect to conventional sandwich walls. This yields savings in overall building costs. Maximum girt spacing, however, is not always dictated by panel deflection. Indeed, while the panels must be able to withstand the prescribed wind loads, girt spacing is often limited by the anchor points available for transferring the load to the structure without causing panel deformation at the fastening point. Since the panels have thin sheet-metal faces, adequately distributing the anchoring load over the greatest panel area possible is critical in minimizing panel deformation and deflection properties. Using additional fastening points on the inner face of the panel contributes practically nothing to overall assembly rigidity.
Most manufacturers recommend using a fastener that covers barely more than the fastener itself. Norbec Architectural, however, has developed exclusive fasteners for each of its panels. Norbec fasteners are made of heavy-gauge galvanized steel with a geometry and length (12’’) that maximizes load distribution over the panel. These fasteners make it possible to get the most out of Norex®, Norlam®, and Noroc® panels as well as maximize savings on the building’s cost.
Designers who opt for Norbec Architectural products can easily estimate the maximum spans authorized per region using a simple calculator available on the Web site.
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5
468 791 0
1
2
2
decompression chamber1
noreX® fastener3
Vapour barrier5
foundation8
butYL cauLking2
structuraL angLe4
Weep hoLe7
poLYethYLene6
mouLding support9
mouLding10
section 1.0
General Presentation
1.3 | Norex® Architectural Panel
1.4 main aDvantaGes
excellent thermal performance
• No cavities, moisture penetration, thermal bridges, risk of interstitial condensation, or lack of insulation.
• Pressure-equalized rain screen ensures that the building envelope is well sealed.
• Factory-applied butyl joint sealer ensures maximum seal.
installation
• Simplicity of construction• Yields savings because installation time can be
accurately estimated, even if weather conditions are poor.
• Reduces installation time by 50 % over multiple- assembly systems.
• Exclusive and superior fastening system.• Wider girt spacing reduces costs.• Can be used as a roof parapet.
environment
• The materials are environmentally friendly and nontoxic.
• Polyisocyanurate has an ozone-depletion potential (oDP) of zero and a negligible global-warming potential (GWP).
• Life expectancy is up to 40 years.• The materials contain no CFCs or HCFCs.• The steel is 100 % reusable.• Helps reduce carbon-dioxide (CO2 ) emissions by
providing better energy efficiency and being part of a sustainable-development policy.
• Can contribute to obtaining leeD certification for a project.
appearance
• Lends itself to more creative concepts while ensuing high construction quality.
• A variety of visual proportions are possible through the use of horizontal or vertical geometry.
• Choice of profiles, colours, widths and textures.
• Can be harmonized with other types of panels (Norlam® and Noroc®).
exclusive structural anchoring system
listing
Compliance with several construction standards such as UlC, astm and aama. Products are subjected to labo-ratory testing according to recognized methods to meet the strictest standards of mechanical performance and fire resistance.
1.5 Panel ComPonent materials
1.5.1 insulation
The panel has a polyisocyanurate core formed by continuous injec-tion of the mixture as a liquid. It rapidly expands, completely filling the space between the steel face and back. The formula contains pentane, which acts initially as a blowing agent and then serves as insulation.
1.5.2 steel
The steel is high-quality, hot-dipped galvanized that meets astm a653 / a653m quality requirements. It is available in a range of colours and textures.
1.5.3 Finish
Each of the paint systems available, including the Perspectra SeriesTM * features outstanding fade resistance. We can guide you in selecting the best paint system for you, depending on the environ- ment and conditions to which the surface will be exposed.
We offer the following standard colours for the panel’s external face:
• White white (QC 18317) • Tan (QC 18315)
• Bone white (QC 18273) • Heron blue (QC 18330)
• Stone grey (QC 18305) • Bright white (QC 18783)
• Charcoal (QC 18306) • Interior white (QC 7973)
A broader range of colours is available upon request.* The Perspectra SeriesTM is being gradually integrated to our standard line.
1.5.4 texture
1.5.4.1 surface profile: • Without profile (embossing or 0,027” (0,686 mm) thick
steel required)• 17 grooves (fluted) • Silkline (striated)• Micro rain (micro-ribbed, available on exterior side only)
1.5.4.2 embossing (optional): • Stucco finish
1.6 Panel DesiGn
1.6.1 Physical Properties
nominal width: Norex ®– L (offset joint) 24’’, 30’’, 36’’ or 42½’’ * Norex ®– S (straight joint) 44” * Norex ®– H (horizontal joint) 24’’, 30’’, 36’’ or 41 ½’’ *
length: 8’ to 48’
thickness:
Norex ®– L (offset joint) 2”, 3”, 4”, 5” and 6” Norex ®– S (straight joint) 2”, 3”, 4” and 5” Norex ®– H (horizontal joint) 2”, 3” and 4”
steel, inner face:
0,019” (0,483 mm) standard thickness 0,027” (0,686 mm) optional thickness
steel, outer face:
Norex ®– L or S 0,019” (0,483 mm) standard thickness 0,027” (0,686 mm) optional thickness
Norex ®– H 0,027” (0,686 mm) thick* The final module width may change due to variations in fabrication and installation.
We do not recommend designing a panel arrangement in which the module width plays a critical role.
1.6.2 listingThe laboratory tests are carried out by recognized firms and in accordance with specific standards. Section 3.0 of this data sheet describes the various tests and the results obtained as part of our research and development program.
1.6.3 Joints
1.4 | NorbecArchitectural.com – 1 877 667 2321 Printed in Canada. July 2013. Publication #FT-REX-1,01EN
section 1.0
General Presentation
Norex® – L
• Offset joint with concealed fasteners • Vertical mounting
Norex® – H
• Horizontal joint with concealed fasteners• Horizontal mounting• Deep fluting : ¾” x ¾” or ” x ¾”
Norex® – S
• Straight joint for interior partitions applications
All specifications provided in this document are current at the time of printing. However, because of the Norbec Architectural policy of continual product improvement, we reserve the right to make changes at any time without notice. The Internet site provides access to the most recent version available.
section 2.0
Steel, Paint and Polyisocyanurate
2.1 introDUCtion
Norex® architectural panels are made of superior-quality, hot-galvanized steel.Colour is provided by the Perspectra SeriesTM * paint system, that uses cutting-edge technology for the pretreatment, undercoat and topcoat with silicone-modified polyester. This system provides 40-years film integrity for most colours. Chalk resistance and colour retention are 30 years. These features apply everywhere in Canada and the continental United States. Moreover, inorganic pigments yield improved colour retention and resistance to fading as a result of UV exposure.
The process begins with chemical pretreatment of the sheet steel, which enhances the bonding of the primer to the metal surface. The flexible high- adherence primer is then applied to the pretreated surface in order to yield greater corrosion resistance, especially along edge, surface grooves and bends. The topcoat is a silicon-mollified polyester paint in a colour chosen specifically for the application. The concealed face of the steel is pretreated for optimal adhesion of the insulation.
Standard colours in the Perspectra SeriesTM * have been developed to provide a total solar reflectance (TSR) of at least 0.25. Furthermore, whites that reflect sunlight yield TSR values of 0.65 to 0.70, which help keep the building cooler.
Paint systems other than the Perspectra SeriesTM * are available, such as polyure-thane, polyvinylidene fluoride (PVDF), or polyvinyl chloride (PVC). Before opting for any of these systems, the designer must take into account the environment and conditions to which the wall covering will be exposed. This is important because a system’s performance generally depends on the length of exposure to moisture, UV radiation, salt air and chemicals. Furthermore, scratch and abrasion resistance might also be a concern according to the type of traffic near the cover-ing.
The colours shown in table 2.2 are standard for 26-gauge steel. Ask about the availability and the additional costs for your choice of colours and steel gauges. Contact our sales department for details about steel protection systems for your applications.
* The Perspectra SeriesTM is being gradually integrated to our standard line.
2.1 | Norex® Architectural Panel
Covering approved by the Canadian Food inspection agency and the United states Department of agriculture
System Colour Code Colour CFIA USDA
Silicone-modified polyester QC 18317 White white Yes Yes
Silicone-modified polyester QC 18273 Bone white Yes Yes
Silicone-modified polyester QC 18305 Stone grey No No
Silicone-modified polyester QC 18306 Charcoal No No
Silicone-modified polyester QC 18315 Tan Yes Yes
Silicone-modified polyester QC 18330 Heron blue No No
Silicone-modified polyester QC 18783 Bright white Yes Yes
Polyester QC 7973 * White Yes Yes
* For interior use only
2.2 | Steel, Paint and Polyisocyanurate
section 2.0
Steel, Paint and Polyisocyanurate
Covering approved by the Canadian Food inspection agency and the United states Department of agriculture
White white (Qc 18317) bone white (Qc 18273) stone grey (Qc 18305) tan (Qc 18315)
charcoal (Qc 18306) heron blue (Qc 18330) bright white (Qc 18783)
2.4 | NorbecArchitectural.com – 1 877 667 2321 Printed in Canada. July 2013. Publication #FT-REX-1,02EN
All specifications provided in this document are current at the time of printing. However, because of the Norbec Architectural policy of continual product improvement, we reserve the right to make changes at any time without notice. The Internet site provides access to the most recent version available.
section 3.0
Listing for Architectural Panels
3.1 | Norex® Architectural Panel
3.1 General DesCriPtion
The panels are designed to support dead loads, live loads, and wind loads. The load limits applied to the panels vary proportionally based on thickness as well as fastener load capacity. Panel behaviour is similar to that of an I-beam, where the steel surface acts like the beam’s flanges and the insulation like its web. When the panel is loaded, the compressive and flexural forces are absorbed by the steel and stabilized by the polyisocyanurate so as to resist buckling.
The following subsections briefly describe the laboratory testing intended for Norex® panels. We are currently completing many of these tests. This section will be updated as soon as the results are available. Contact our sales department for more information.
3.2 ProPerties anD PerFormanCe testinG
Laboratory tests determine the performances and usage limitations of using Norex® panels according to the provisions of Canadian (ULC) and American standards (ASTM and AAMA). The National Building Code NBC – 2005, section B, part 3, sentences 3.1.5.5. (2) and (3) as well as 3.1.5.12. (6) and (7) define the standards for the use of panel with combustible insulation.
3.3 astm e72 stanDarD
standard test method of conducting strength tests of panels for building construction
Deflection testing is carried out in accordance with the provisions of the depressurization-chamber method in ASTM E72. This method consists in sub- mitting panel samples to a series of uniformly distributed static loads and measuring the resultant deflection.
The loads are gradually increased until panel failure. The results make it possible to determine the maximum loads for simple and multiple spans, and for deflection limits of L /180 (wall), L / 240 (roof) and L / 360 (brick veneer).
The results obtained show the maximum loads based on free span and panel thickness. The load calculations in psf are carried out according to three distinct limitation criteria. The first criterion is maximum panel deflection based on its free span; the second is total maximum load without permanent deformation ; and the third maximum load is over supports. Based on the rupture mode, the loads recorded are limited to the ultimate load divided by1.5 (safety factor).
The results demonstrate that the bending stiffness (EI) varies proportionally to the square of panel thickness. This demonstrates that, for the loads considered, the assembly behaves like a partially solid assembly comprised of rigid composites and that it benefits fully from the separation of the steel sheets from the neutral axis.
3.2 | Listing of Architectural Panels
3.4 astm e283
standard test method for determining the rate of air leakage through exterior windows, curtain walls and doors under specified pressure differences across the specimen
Air-leakage tests are carried out under a static pressure of 1.56 psi (75 Pa) in conformity with the provisions of this standard and the 2005 NBC, Division B, Part 5, sentence 5.4.1.2 (1). The air leakage must not exceed 0.02 L / (s * m2).
3.5 astm e331
standard test method for water penetration of exterior windows, skylights, doors and curtain walls by uniform static air pressure difference
The water-penetration test is carried out under a static pressure of 14.6 psf (700 Pa) for 15 min. During the entire time of testing, the outer face of the prototype is subjected to a uniform spray of 5 US gal / sq ft / h (3.41 L / min / m2). The standard allows no water penetration to the interior face of the assembly. This is also in line with the requirements of the 2005 NBC, articles 5.6.1.1 and 5.6.2.1.
3.6 aama 501.1
standard test method for exterior windows, curtain walls and doors for water penetration using dynamic pressure
This test is carried out under a dynamic pressure of 14.6 psf (700 Pa) for 15 min. During the entire time of testing, the outer face of the prototype is subjected to a uniform spray of 5 US gal / sq ft / h (3.41 L / min / m2). The pressure differential is produced by an aircraft engine with a propeller measuring 13.5 ft (4.11 m) in diameter. The standard allows no water penetration to the inner face of the assembly. This is also in line with the requirements of the 2005 NBC, articles 5.6.1.1 and 5.6.2.1.
3.7 astm e330
standard test method for structural performance of exterior windows, doors, skylights and curtain walls by uniform static air pressure difference
The structural-performance test is carried out using positive and negative loads equal to the design pressure, which is 30 psf (1.45 kPa). The standard allows a maximum panel deflection that is the smaller of L /180 or ¾”.
3.8 aama 501.5
test method for thermal cycling of exterior wall
The thermal-cycling test involves a total of seven cycles during which the exterior temperature ranges from -22 ºF (-30 ºC) to 180 ºF (82 ºC) over a period of 8 hours. The standard allows no damage or permanent deformation that could affect the wall’s appearance or performance. Following the cycles, no damage, breakage or permanent distortion was observed.
3.9 astm C236-89 (1993) e1
standard test method for steady-state thermal performance of building assemblies by means of a guarded hot box
This method is carried out in a guarded hot box under controlled temperature and humidity. It determines the overall U value of panel assemblies and condensation resistance.
3.10
qualitative Fire-resistance tests for architectural Panels
The tests carried out by Underwriters’ Laboratories of Canada (ULC) do not establish a panel’s overall fire resistance for a specific application. These tests evaluate the behavior of materials or assem- blies under laboratory-controlled fire-exposure conditions.
3.11 Can / UlC – s101
standard tests methods for the fire-resistance of buildings and construction materials
This standard deals with fire-resistance tests carried out on walls. The fire resistance established with this method is 10 min. It is a way of indicating the panel joint performance to fire exposure. It does not determine if the element can be used after fire exposure. This test is required to meet the requirements of NBC – 2005 sentence 3.1.5.12.6. Norex® – L, S and H comply with all the requirements of this test.
section 3.0
Listing for Architectural Panels
3.12 Can / UlC – s102 – m07 6tH eDition
standard test method for surface burning characteristics of building materials and assemblies
The test method, which establishes the combustion characte- ristics of construction materials, applies to all construction materials that, either as a result of their structural qualities or the way in which they are applied, can remain in position on their own or a sample of a thickness comparable to that recommended for use that can be supported in the furnace.
The main purpose of this test is to determine the combustion characteristics of various materials or assemblies by evaluating the flame-spread rating of a surface exposed to an experimental flame. This makes it possible to establish a baseline for comparing surface combustion characteristics of various materials in the assemblies without taking into account all of the end-use para- meters that might affect surface-combustion characteristics. Sentences 3.1.5.12. (6) and (7) of the 2005 NBC require an index less than 500.
Although the smoke-producing power and flame-spread rating are recorded during this test, there is not necessarily a relationship between these data.
This test method makes it possible to observe how the material performs during the exposure time. It cannot be used as a basis for deciding if they should be used after test exposure.
This method does not establish the performance levels for specific uses. It provides the means for evaluating the behavior of materials, products, and assemblies when exposed to a specific flame under controlled laboratory condition.
test results: Can / UlC – s102 – m07
Equipment Flame-Spread Smoke Density Rating
Polyisocyanurate core 440 150max. thickness of 150 mm
Norex® – L 15 285max. thickness of 150 mm
Norex® – S 15 165max. thickness of 127 mm
Norex® – H 10 180max. thickness of 100 mm
3.3 | Norex® Architectural Panel
3.13 Can / UlC – s126, 2nD eDition
standard test method for fire spread under roof deck assemblies
This test method establishes the degree to which assembly components contribute to flame spread on the interior side of roof deck assemblies.
The method also provides an estimate of the thermal degradation and carbonization of assemblies.
The standard’s acceptance criteria is based on correlated data established during large-scale testing (building measuring 30.5 m x 6 m) and testing of samples representative of real constructions in a tunnel furnace.
acceptance criteria:
• The progress of the flame must not exceed 3000 mm in a 10-min period.
• The progress of the flame must not exceed 4200 mm in a 30-min period.
• Thermal degradation must not spread to all assembly components located at the end of the test bench’s exhaust line. For the purposes of this standard, “thermal degradation” means any shrinking or alteration in colour.
• Carbonization of metal constituents must gradually diminish with distance from the flame test area.
Norex® – L, S and H comply with all the requirements of this test.
3.14 Can / UlC – s134
standard method of fire test for exterior wall assemblies
This test method estimates the flame-propagation characteristics of non load bearing exterior walls for a building with at least three stories or entirely protected with sprinklers as defined in clause 3.1.5.5. (1) (a) of the 2005 NBC.
The test also determines the comparative combustion characte- ristics of exterior walls by evaluating the following:
• Flame propagation on exterior facing;
• Heat flux of the flame column on the exterior facing;
• Flame propagation in the test specimen.
This test method does not evaluate:
• Fire behavior in frame details or the treatment of windows, doors and other openings that can be combined with the test specimen;
• Fire behavior of a test specimen exposed to an interior fire propagated by an exterior wall.
This method evaluates the performance of a non-loadbearing exterior wall under well-defined conditions representing exposure to fire resulting from a general blaze in a compartment ventilated by a wall opening. The results do not reflect the real performance of exterior walls under all fire exposure conditions.
Norex ®– L and H meet the acceptance criteria as provided for in sentences 3.1.5.5. (2) and (3) of the 2005 NBC. The code stipulates that the flame spread on the exterior facing or the interior wall shall not be more than 5 m over the opening. The heat flux of the flame column on the exterior facing must not exceed 35 kW / m2 when measured 3.5 m over the opening throughout the entire test. The test, which lasts a total of 25 min, comprises 3 steps 5 min of linear increase, 15 min in the stable state and 5 min of linear decrease.
3.15 Can / UlC – s138
standard method of test for fire growth of insulated building panels in a full-scale room configuration (orD C376 1995)
This test method is used to determine the contribution to fire growth provided by a non-loadbearing insulated building panel installed in a sprinkled room configuration. Clause 3.1.5.12 (7) (e) of the NBC (2005) requires that the panel meet this standard.
The insulated building panels investigated by this test method are of the factory-assembled type and intended for use as exterior or interior walls, ceilings or roofs. This standard presumes that these panels are not backed by other materials or constructions in typical installation practice. If the panels are designed for installation with backing, the test specimen shall be installed and assessed consistently with its intended use.
This test method measures the time to flashover under specified test conditions. Provisions are made to measure ignitability, smoke obscuration, rate of fire growth and rate of heat release of the test panels.
This method was not designed to determine fire resistance of insulated building panels. Furthermore, this test method does not investigate the toxic hazard posed by the products of combustion.
These exposure tests were not designed to represent all fire conditions. It is probable that the conditions will vary according to changes in the scope, nature and distribution of the fire load, ventilation, size and configuration of the installed assembly. These requirements offer a relative measure of how comparable assemblies behave when exposed to specific fire conditions.
This standard must be used to measure and describe the behavior of materials, products and assemblies to the heat and flame of controlled conditions.
test results: Can / UlC – s138
• The heat measured never exceeded 20 kW / m2 during a 15-min test with sprinklers;
• The temperature measured never exceeded 600 °C during a 15-min test with sprinklers;
• No flames appeared in the setup opening during a 15-min test with sprinklers.
Norex® – L, S and H comply with all the requirements of this test.
section 3.0
Listing for Architectural Panels
3.4 | NorbecArchitectural.com – 1 877 667 2321 Printed in Canada. July 2013. Publication #FT-REX-1,03EN
All specifications provided in this document are current at the time of printing. However, because of the Norbec Architectural policy of continual product improvement, we reserve the right to make changes at any time without notice. The Internet site provides access to the most recent version available.
4.1 | Norex® Architectural Panels
Section 4.0
Results of Deflection Tests according to ASTM E72
4.1 InTroducTIon
Deflection testing is carried out in accordance with the provisions of the depressurization-chamber method in ASTM E72. This method consists in submitting panel samples to a series of uniformly distributed static loads and measuring the resultant deflection.
The loads are gradually increased until panel failure. The results make it possible to determine the maximum loads for simple and multiple spans, and for deflection limits of L/180 (wall), L/240 (roof), and L/360 (brick veneer).
The results obtained show the maximum loads based on free span and panel thickness. The load calculations in psf were carried out according to three distinct limitation criteria. The first criterion is maximum panel deflection based on its free span; the second is total maximum load without permanent deformation; and the third is maximum load over supports. Based on the rupture mode, the loads recorded were limited to the ultimate load divided by 1.5 (safety factor).
The results demonstrate that the bending stiffness (EI) varies proportionally to the square of panel thickness. This demonstrates that, for the loads considered, the assembly behaves like a partially solid assembly comprised of rigid composites and that it benefits fully from the separation of the steel sheets from the neutral axis.
4.2 | Results of deflexion tests according to ASTM E72
4.1 Load TabLe
Single Span, L/180 (psf)
Span (ft) Thickness (in)
2 3 4 5 6
6 40 68 81 85 131
7 35 58 70 72 113
8 30 51 61 63 99
9 23 45 54 56 88
10 17 35 49 51 79
11 13 26 44 46 72
12 10 20 41 42 66
13 8 16 38 39 61
14 6 13 33 36 56
15 5 10 27 34 49
16 – 9 22 30 40
17 – 7 19 25 33
18 – 6 16 21 28
19 – 5 13 18 24
20 – – 11 15 21
21 – – 10 13 18
22 – – 9 12 15
23 – – 8 10 14
24 – – 7 9 12
25 – – 6 8 11
26 – – 5 7 9
27 – – 5 6 8
28 – – – 6 7
29 – – – 5 7
30 – – – 5 6
4.2 Load TabLe
Multiple Span, L/180 (psf)
Span (ft) Thickness (in)
2 3 4 5 6
6 40 68 81 85 131
7 35 58 70 72 113
8 30 51 61 63 99
9 27 45 54 56 88
10 24 41 49 51 79
11 22 37 44 46 72
12 20 34 41 42 66
13 18 31 38 39 61
14 15 29 35 36 56
15 12 25 33 34 53
16 10 21 31 32 49
17 8 17 29 30 46
18 7 15 27 28 44
19 6 12 26 27 41
20 5 11 24 25 39
21 – 9 23 24 38
22 – 8 21 23 36
23 – 7 18 22 33
24 – 6 16 21 29
25 – 5 14 19 25
26 – 5 13 17 23
27 – – 11 15 20
28 – – 10 13 18
29 – – 9 12 16
30 – – 8 11 15
Section 4.0
Results of Deflection Tests according to ASTM E72
NOTES:1) Above values were obtained using a 26 gauge steel and a Silkline profile on each faces.2) The tables are showing values limited by the flectional stress, the support points stress and the deflection of a panel. The most limiting criteria determines the design load shown.3) The tables do not consider connection loads and installation location. The calculation tool available on our web site allows you to obtain a girt spacing evaluation which
is considering all these factors.
4.3 | Norex® Architectural Panels
4.3 Load TabLe
Single Span, L / 240 (psf)
Span (ft) Thickness (in)
2 3 4 5 6
6 40 68 81 85 131
7 35 58 70 72 113
8 25 51 61 63 99
9 17 36 54 56 88
10 13 26 49 51 79
11 9 20 44 46 72
12 7 15 40 42 66
13 6 12 31 39 56
14 5 10 25 34 45
15 – 8 20 27 37
16 – 6 17 22 30
17 – 5 14 19 25
18 – 5 12 16 21
19 – – 10 13 18
20 – – 9 12 15
21 – – 7 10 13
22 – – 6 9 12
23 – – 6 8 10
24 – – 5 7 9
25 – – – 6 8
26 – – – 5 7
27 – – – 5 6
28 – – – – 6
29 – – – – 5
30 – – – – 5
4.4 Load TabLe
Multiple Span, L / 240 (psf)
Span (ft) Thickness (in)
2 3 4 5 6
6 40 68 81 85 131
7 35 58 70 72 113
8 30 51 61 63 99
9 27 45 54 56 88
10 24 41 49 51 79
11 22 37 44 46 72
12 18 34 41 42 66
13 14 29 38 39 61
14 11 23 35 36 56
15 9 19 33 34 53
16 7 16 31 32 49
17 6 13 29 30 46
18 5 11 27 28 44
19 – 9 24 27 41
20 – 8 21 25 37
21 – 7 18 24 32
22 – 6 16 21 28
23 – 5 14 18 24
24 – 5 12 16 22
25 – – 11 14 19
26 – – 9 13 17
27 – – 8 11 15
28 – – 8 10 14
29 – – 7 9 12
30 – – 6 8 11
NOTES:1) Above values were obtained using a 26 gauge steel and a Silkline profile on each faces.2) The tables are showing values limited by the flectional stress, the support points stress and the deflection of a panel. The most limiting criteria determines the design load shown.3) The tables do not consider connection loads and installation location. The calculation tool available on our web site allows you to obtain a girt spacing evaluation which
is considering all these factors.
4.4 | NorbecArchitectural.com – 1 877 667-2321 Printed in Canada. February 2010. Publication # FT-REX-1,04EN
4.5 Load TabLe
Single Span, L / 360 (psf)
Span (ft) Thickness (in)
2 3 4 5 6
6 39 68 81 85 131
7 24 51 70 72 113
8 16 34 61 63 99
9 12 24 54 56 88
10 8 18 46 51 79
11 6 13 35 46 72
12 5 10 27 36 66
13 – 8 21 28 56
14 – 6 17 22 45
15 – 5 14 18 37
16 – – 11 15 30
17 – – 9 13 25
18 – – 8 11 21
19 – – 7 9 18
20 – – 6 8 15
21 – – 5 7 13
22 – – – 6 12
23 – – – 5 10
24 – – – – 9
25 – – – – 8
26 – – – – 7
27 – – – – 6
28 – – – – 6
29 – – – – 5
30 – – – – 5
4.6 Load TabLe
Multiple Span, L / 360 (psf)
Span (ft) Thickness (in)
2 3 4 5 6
6 40 68 81 85 131
7 35 58 70 72 113
8 30 51 61 63 99
9 27 45 54 56 88
10 20 41 49 51 79
11 15 32 44 46 72
12 12 25 41 42 66
13 9 19 38 39 61
14 7 15 35 36 56
15 6 13 33 34 53
16 5 10 27 32 48
17 – 9 23 30 40
18 – 7 19 25 34
19 – 6 16 22 29
20 – 5 14 19 25
21 – 5 12 16 21
22 – – 10 14 19
23 – – 9 12 16
24 – – 8 11 14
25 – – 7 9 13
26 – – 6 8 11
27 – – 6 8 10
28 – – 5 7 9
29 – – 5 6 8
30 – – – 5 7
Section 4.0
Results of Deflection Tests according to ASTM E72
All specifications provided in this document are current at the time of printing. However, because of the Norbec Architectural policy of continual product improvement, we reserve the right to make changes at any time without notice.
NOTES:1) Above values were obtained using a 26 gauge steel and a Silkline profile on each faces.2) The tables are showing values limited by the flectional stress, the support points stress and the deflection of a panel. The most limiting criteria determines the design load shown.3) The tables do not consider connection loads and installation location. The calculation tool available on our web site allows you to obtain a girt spacing evaluation which
