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Atlas Roofing Corporation
Tapered ACFoam-III
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Overview
Board Insulation
Foam Board
Polyisocyanurate
Flat Roof, Sloped Ceiling
Design Options
Product Description
Insulation
Width
Standard Sizes: 4' 0"
Height
Standard Sizes: 4' 0", 8' 0"
Thickness
Standard Sizes: 0-3/4", 1", 1-1/4", 1-1/2", 1-3/4", 2", 2-1/4"
Manufacturer Design Notes
Tapered 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
5.73
NRC Value
The Noise Reduction Coefficient values of this product
Fire Resistance
Amount of time the product can withstand fire
R-Value
Measure of the thermal resistance of the product, imperial units.
°F·ft^2·h / BTU
4.3, 5.7, 7.1, 8.6, 10, 11.4, 12.9
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
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
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