Cellofoam EPS insulation has been granted recognition by Underwriters Laboratories LLC (UL) for use directly on a metal roof deck without the use of code specified thermal barrier as shown on UL Construction No. 458, TGKX.458, Roof Deck Constructions. This recognition is documented in Cellofoam's UL File No. R7260, category codes TGFU and BRYX-01, and our UL Evaluation Report, ER-7260-01. As noted in paragraph 6.3 and Table 1 of this Evaluation Report, Cellofoam’s plain EPS and Poly Shield® laminated sheathing are recognized as acceptable roofing insulations by UL for the following cases:
Cellofoam North America Inc is proud to have helped sponsor industry testing of EPS insulated roofing assemblies for UL 1256 through the EPS Molders Association (now called the EPS Industry Alliance). Test reports on fire tests of EPS roofing systems applied directly to fluted metal deck, Roof Construction No. 458, were conducted by Underwriters Laboratories LLC, File R18302, Project 96NK14112.
The above information, attached with a copy of UL Construction No. 458, TGKX.458, Roof Deck Constructions, is featured in a recently written Cellofom Technical Note #106, EPS Direct to Metal Roof Decks, that can be found in our website’s Library section.2
Cellofoam Engineering Team
- As part of a UL Classified Class A, B, or C roof-covering assembly in accordance with Test Standard UL 790, category code TGFU.
- As part of a UL Classified Roof Deck Construction in accordance with Test Standard UL 1256
Cellofoam North America Inc is proud to have helped sponsor industry testing of EPS insulated roofing assemblies for UL 1256 through the EPS Molders Association (now called the EPS Industry Alliance). Test reports on fire tests of EPS roofing systems applied directly to fluted metal deck, Roof Construction No. 458, were conducted by Underwriters Laboratories LLC, File R18302, Project 96NK14112.
The above information, attached with a copy of UL Construction No. 458, TGKX.458, Roof Deck Constructions, is featured in a recently written Cellofom Technical Note #106, EPS Direct to Metal Roof Decks, that can be found in our website’s Library section.2
Cellofoam Engineering Team
1) 2015 IBC information downloaded from https://codes.iccsafe.org/content/IBC2015/chapter-26-plastic?site_type=public, 26 Dec 2018.
2) https://www.cellofoam.com/library.htm
