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ACFoam-III

Atlas Roofing Corporation

ACFoam-III

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Overview

Board Insulation Board Insulation

Foam Board Foam Board

Polyisocyanurate Polyisocyanurate

Flat Roof, Sloped Ceiling Flat Roof, Sloped Ceiling

Design Options

Product Description

Closed-cell polyisocyanurate (polyiso) foam core integrally bonded to inorganic coated glass facers. ACFoam-III is offered in a variety of thicknesses, providing long-term thermal resistance (LTTR) values from 5.7 to 26.8.
Manufactured and tested for use in new and re-roofing applications.

Insulation

Width

Standard Sizes: 4' 0"

Height

Standard Sizes: 4' 0", 8' 0"

Thickness

Standard Sizes: 1", 1-1/2", 2", 2-1/2", 3", 3-1/2", 4"

Manufacturer Design Notes

ACFoam-III is used in built-up (BUR), modified bitumen, metal, ballasted single-ply, mechanically attached single-ply and adhered single-ply roofing systems. These roofing systems depend on proper installation for successful performance

Performance Data

R-Value Per Inch

Measure of the thermal resistance of the product per inch of thickness, imperial units.

°F·ft^2·h / BTU / inch

5.7

NRC Value

The Noise Reduction Coefficient values of this product

Fire Resistance

Amount of time the product can withstand fire

Water Vapor Transmission

An imperial perm is defined as 1 grain of water vapor per hour, per square foot, per inch of mercury

perm (imperial)

4

Smoke Development

As defined by the ASTM E84 testing standard

50, 170

Flame Spread

As defined by the ASTM E84 testing standard

40, 60

Dimensional Stability

The percent that a product's dimensions vary due to aging or environmental conditions.

%

2

Product Density

lbs / ft^3

2

R-Value

Measure of the thermal resistance of the product, imperial units.

°F·ft^2·h / BTU

5.7, 8.6, 11.4, 14.4, 17.4, 20.5, 23.6

Minimum Recycled

The minimum amount of the product's input materials that come from recycled sources

%

6

Compressive Strength

psi

20

Tensile Strength

psf

730

Atlas Roofing Corporation