Division 7 Ebook Page 554 UL Evaluation Report

Page 7 of 13 walls must be braced in accordance with IBC Section 2308.9.3 and Section 2308.12.4 or IRC Section R602.10.3. The interior of the building must be separated from the FOAMULAR XPS insulation boards with a thermal barrier as required by Section 2603.4 of the IBC or Section R316.4 of the IRC, as applicable, except as described in Sections 6.5 and 6.6 of this report. The code official may require an approved vapor retarder to be installed in accordance with IBC Section 1405.3, IRC Section R702.7, or the IECC, as applicable. A water-resistive barrier in compliance with IBC Section 1404.2 or IRC Section R703.2 is required and, when applied over wood-based sheathing, must comply with IBC Section 2510.6 or IRC Section R703.6.3. Foamular XPS insulation boards with joints taped are a water-resistive barrier when installed in accordance with Section 6.7 of this report. The insulation boards must not be used as a nailing base for exterior siding materials. All fastening must be made through the boards and either into the wall framing or into structural sheathing, as required by the siding manufacturer's published installation instructions, or in accordance with the applicable code. 6.2 Use on the exterior of above grade walls: FOAMULAR XPS insulation boards are used on the exterior of above grade walls as follows: - Exterior Walls of One- and Two-Family Dwellings in accordance with the 2012 IRC, - Exterior walls of one story buildings of Types I, II, III, or IV construction in accordance with Section 2603.4.1.4 of the IBC, - Exterior walls of Type V construction in accordance with Section 2603.2, Section 2603.3, and Section 2603.4 of the IBC, or - Exterior walls of buildings of Types I, II, III, or IV construction in accordance with Section 2603.5.5 of the IBC, when tested in accordance with NFPA 285: o For Systems UL Certified in accordance with NFPA 285 incorporating FOAMULAR XPS insulation boards, see Section 7.2 for a link to the UL Online Certification Directory for systems Certified under the UL Classified Exterior Wall Systems category. o For exterior walls incorporating FOAMULAR XPS as part of the CavityComplete Wall System for Steel Stud with Masonry Veneer of buildings of Types I, II, III, or IV construction tested in accordance with NFPA 285, ASTM E2357 and ASTM E331, see Section 7.2 of this report for a link to the UL Online Certification Directory for systems Certified under the UL Classified Exterior Wall for System EWS0008. 6.3 Use in Roofing: FOAMULAR XPS insulation boards are used as a roofing insulation as follows: - As part of a Class A, B or C roof-covering assembly for exterior fire exposure when tested in accordance with UL 790, as specified in Section 2603.6 of the IBC. See Section 7.2 of this report for a link to the UL Online Certifications Directory for Class A, B or C roof-covering assemblies UL Classified in accordance with UL 790 incorporating FOAMULAR XPS insulation boards.

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