Division 7 Ebook Page 60 Owens Corning Enclosure Solutions NFPA 285 Design Guide

11 ENCLOSURE SOLUTIONS NFPA 285 Accepted Complete Walls Appendix A: Owens Corning Approved Insulation Products The Owens Corning products shown herein can be used in NFPA 285 compliant assemblies as described in Tables 1, 1a, and 2. FOAMULAR Extruded Polystyrene Continuous Insulation Product Name Application Thickness (inches) R-Value R-Value (180 Day) R-Value 1 (LTTR) Size 2 (inches) Compressive Strength (psi) ASTM C578 Type Edge Type @ 75 F mean temp @ 40 F mean temp @ 75 F mean temp FOAMULAR 250 Steel Stud Framing 1 1 2 2 3 4 4.0 5.0 7.5 10.0 12.5 15.0 20.0 4.3 5.4 8.1 10.8 13.5 16.2 21.6 5.0 10.6 13.4 16.2 22.0 48 96 1 48 96 1 48 96 2 48 96 2 48 96 3 48 96 4 48 96 (FOAMULAR 250 also in 24" wide) 25 IV Square (or T&G up to 2" thick only) FOAMULAR CW15 Concrete Masonry 1 1 2 2 3 5.0 7.5 10.0 12.5 15.0 5.4 8.1 10.8 13.5 16.2 5.0 10.6 13.4 16.2 1 16 96 1 16 96 2 16 96 2 16 96 3 16 96 15 X Square FOAMULAR CW25 Concrete Masonry 1 1 2 2 3 5.0 7.5 10.0 12.5 15.0 5.4 8.1 10.8 13.5 16.2 5.0 10.6 13.4 16.2 1 16 96 1 16 96 2 16 96 2 16 96 3 16 96 25 IV Square FOAMULAR High R CW Plus Concrete Masonry 1 2 3 10.0 12.0 17.0 10.8 13.0 18.4 10.3 12.5 1 16 96 2 16 96 3 16 96 25 IV Square 1. R-values vary depending on many factors including the mean temperature at which the test is conducted, and the age of the sample at the time of testing. Because rigid foam plastic insulation products are not all aged in accordance with the same standards, it is useful to publish comparison R-value data. The R-value for FOAMULAR XPS is provided from testing at two mean temperatures, 40 o F and 75 o F, and from two aging (conditioning) techniques, 180 day real-time aging (as mandated by ASTM C578), and a method of artificially accelerating aging sometimes called "Long Term Thermal Resistance" (LTTR, CAN/ULC S770). The R-value at 180 day real-time aged, and 75 o F mean temperature, is commonly used to compare products. It is recommended that the specifier verify testing and conditioning methods with the manufacturer before comparing the R-value of rigid foam plastic insulation products. 2. Availability may vary depending on sizes, edge configuration, and/or region. Some items are made to order. Check with your local FOAMULAR representative for specific information. JointSealR Foam Joint Tape Function Roll Width (inches) Roll Length (feet) Backer Sealing FOAMULAR XPS rigid board joints 3.5 90 Acrylic

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