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Cover board considerations

Abstract
In March, I addressed NRCA recommendations for the use of rigid board, faced, polyisocyanurate insulation as components of membrane roof systems. Included in those recommendations is the use of a suitable cover board layer. Following is some background information and NRCA’s rationale and current recommendations for the use and selection of cover boards.
Date
4/2017
Author(s)
Mark Graham
Page(s)
12
Source
Professional Roofing / National Roofing Contractors Assn
Keyword(s)
Cover boards; cover board layer; NRCA technical bulletin

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