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  GAF Materials Corporation   Commercial Roofing Products  

GAFTEMP Roof Insulation Products Selection Guide

   

Commercial Roofing Products

GAFTEMP® Roof Insulation Products Selection Guide
GAF Materials Corporation markets a complete line of commercial roofing insulation products, including: GAFTEMP® Permalite® Roof Insulation; GAFTEMP Isotherm and Isotherm Composite; and Recover Board. In addition, we offer products fabricated from perlite insulation including GAFTEMP Permalite Tapered Roof Insulation systems, Isotherm Tapered Composite, cant strip, and edge strip. GAFTEMP Insulation products are available nationally through a network of independent roofing distributors. 

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Perlite
Perlite is a naturally occurring siliceous rock. When heated, trapped water within it expands and creates countless small bubbles which account for its lightweight and excellent thermal properties.

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This symbol is used throughout the catalog to identify products that use a substantial amount of recycled materials and that are biodegradable.
 
GAFTEMP Roof Insulations Product Selection Guide
THERMAL VALUES NOMINAL THICKNESS
R C PERMALITE
Roof Insulation		 Isotherm Isotherm
Composite
1.32 76 1/2"    
2.08 .48 3/4"    
2.78 .36 1"    
4.17 .24 11/2"    
5.56 .18 2"    
5.88 .17   1.0"  
6.67 .15 21/2"    
7.70 .13     1.5"
8.33 .12 3 1.3" 1.6"
10.00 .10   1.5" 1.9"
11.11 .09     2.0"
12.50 .08   1.8" 2.2"
13.33 .075     2.3"
14.29 .07   2.0" 2.4"
16.67 .06   2.3" 2.7"
20.00 .05   2.7" 3.1"
25.00 .04   3.4"  

 

Insulation/Membrane Compatibility
R*
Value		 Insulation MOD.
BIT.		 BUR Ballasted Mechanically
Attached		 Fully
Adhered
EPDM PVC EPDM PVC EPDM PVC
1.32 Permalite        
to Permalite
Recover
Board		        
11.11 Tapered
Permalite		        
6.0 Isotherm**
to Isotherm
Composite		        
30.2 Tapered
Isotherm
Composite		        

*Condition valve
**Some membrane systems may require an overlay board of Permalite.



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