Trevor Ogle Presents

An Overview of

Insulated Concrete Formwork (ICF’s)

A Permanent Solution

“NUDURA Incorporate & Brook Kerith Civil & Buildings will provide Certificates of Completion for members upon request.

Questions related to specific materials, methods, and services will be addressed at the conclusion of this presentation.

Thank You

Course

Objective

To present the variety of

applications and benefits that

insulated concrete forms

(ICF’s) can be use on and

incorporated into

Topic

s• What are insulated concrete

forms (ICF’s)

• Different types of Insulated Concrete Forms

• Benefits for Building with ICF’s

• Construction Process

• Building Types

• Codes and Design Capabilities and how they apply to ICF construction

• Green Products and LEED.

What are Insulated Concrete

Forms?• Insulated Concrete Forms (ICF) are stay in place concrete forms

• ICF consist of two panels of EPS foam

• Both panels of insulation are held together with cross ties or “webs”integrally molded into the foam to create a block or “form unit”

• Insulation: Usually expanded (EPS) or

extruded (XPS) polystyrene

• Cross Ties or Webs: Usually

recycled plastic (HDPP),

nylon or metal

Post & Beam

Waffle or Screen Grid

Flat Wall

ICF Wall

Types

ICF Assembly

Methods

Fully assembled folding unitsPreformed fully assembled

units

ICF Assembly

Methods

Site assembled

Benefits of Building with

ICF’s• Energy Efficient

• Fire Resistance

• Sound Resistance

• Storm Resistance

• Indoor Air Quality

• Speed of

Construction

Energy and Air

InfiltrationEnergy Efficient:

Thermal Mass Effect enables an

R24 insulation value to perform

equivalent to a low mass wall up

to R50.

Air Tight Envelope:

Solid Monolithic Concrete wall

eliminates risks associated with

air infiltration unlike the wall cavity

of traditional systems

Superior Fire

Resistance6 inch core walls can be designed to meet a 4

hour fire resistance rating when tested to ASTM

E-119

Efficient Sound

Barrier• 6 inch cavity provides

an Sound

Transmission

Classification (STC)

of 50

• Which can be easily

adapted to achieve a

rating of STC 71 or

higher

Superior Wind

Resistance

Walls can be

designed to

withstand wind

speeds of up to 250

mph for tornado and

hurricane prone

regions

Superior Mold

Resistance• EPS foam will not

propagate mold growth

• Passes all Fungi Resistance

Testing

Speed of

Construction• Overall construction time is

reduced through the speed of

assembling the wall.

• This reduces the number of

sub trades necessary on site.

• Which reduces the number of

man hours/ square foot for a

project. (0.050 Man Hours/SF

typically)

Simplicity of Design &

InstallationCombines SIX building envelope elements within ONE

product:

1) Concrete Forming System

2) Structurally Reinforced Monolithic Concrete

3) Continuous Exterior/ Interior Insulation

4) Continuous Air Barrier (Concrete)

5) Continuous Vapor Barrier (EPS)

6) Exterior and Interior Fastening Strips

ICF Construction Process

Overview

Footin

gs• Standard footings are installed according to applicable building

codes and engineering requirements

• Stepped footings are easily accommodated with the flexibility of

ICF construction

Wall

AssemblyForm units are stacked similar to building blocks to the required building

dimensions

Reinforcing steel is placed according to the design

requirements into notches provided by the webbing

Reinforcing

Steel

Efficient Steel

Placement• Accurate positioning of steel in wall

• No additional tie wiring is required

Moisture

Resistance

An EPS compatible

peel and stick

membrane is

available to provide

a dampproof and

waterproof barrier

against moisture

infiltration.

• Window and door “Bucks” or frames are placed in the wall

• “Bucks” can be created using several different material options

Wall

Openings

Wall alignment systems and

bracing is placed as the wall is

stacked.

Wall

Bracing

• Concrete is poured

into the hollow cavity

of the wall to create

a solid 4” to 12”thick concrete wall.

• Walls can be

consolidated both

internally and

externally

Concrete

Placement

The result is a solid

insulated reinforced

concrete wall

assembly with

excellent thermal

resistance and sound

transmission

properties.

Completed

Walls

Wall to Floor

ConnectionsHollow Core

Steel/Concre

te

Wood

Roof

Connections

Flat steel roof systems

Wood Truss Systems

Electrical

InstallationsRough-In for electrical work is accomplished in various

ways

Plumbing

Installations

• Up to 1 ½” PVC pipe with

coupler can be recessed into

the EPS for most flat wall

systems.

• “Rough In” is the same as

electrical

Interior

Finishes• ½” (12mm) Drywall is a

common Interior finish

(also it acts a thermal

barrier)

• Drywall can be installed

directly on to NUDURA

walls using 1⅝” (42mm)

drywall screws.

Versatile Finish

Flexibility

• Various Sidings (Cement,

Vinyl, Steel, Wood)

• Stucco (Acrylic, Hard

Coat)

• Brick Veneer

• Stone

• Cultured Brick or Stone

A variety of different finishing materials can applied to the

exterior of an ICF building:

BUILDING TYPES

Professional

Offices

Building in

progress

Fire

Stations

Restauran

ts

Commercial / Residential

Buildings

Building Codes and

ICF’s• Whenever applying Codes

to ICF's, the most ideal approach is to think of an ICF wall as a monolithic flat reinforced concrete wall with foam plastic insulation applied to both sides of the concrete core.

• Building Construction type will determine the section of the code that is applicable to ICF construction.

Building

Capabilities

• Flexible Core

Thicknesses - 4, 6, 8,

10, 12 inch & beyond to

24”

• Below Grade

• Single Storey

• Multi-storey

• Bearing and Curtain

Walls

Floor and Roof

Options• Hambro

• Composite Deck

• Hollow Core

• Pre-cast “T’s”• Flat Slab

• Insulated Concrete Deck

Design

Capabilities• 90 and 45 degree

corners

• Brick Ledge forms

• Brick Ledge Extensions

• T-Form Units

• Factory Cut Radius

forms

Green Product- LEED Credit

Advantages• Can Improve Building

Energy Efficiency by 25

to 50 %

• Uses greater than 50%

Recycled Materials by

weight

• Durable Long Life

Materials

• Reduced Construction

Waste

• Consult manufacturers for

their reports on possible

point attainment under

LEED

This concludes the

Continuing

Education Systems

Program On

Insulated Concrete

Forms

For more information

visit

www.nudura.com