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 Tapered ACFoam-III

Atlas Roofing Corporation

Tapered 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. Tapered ACFoam®-III is offered in a variety of slopes, to achieve positive drainage as well as long-term thermal resistance (LTTR). Available in 4ft x 4ft (1220mm x 1220mm) panels with 1/8” (3mm), 1/4” (6mm) and 1/2” (12mm) per foot slope.
Manufactured using CFC-, HCFC- and HFC-free foam blowing technology with zero ozone depletion potential (ODP) and virtually no (negligible) global warming potential (GWP).
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: 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