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Title
Specifying specifics
Date
3/2020
Author(s)
Mark Graham
Page(s)
20-22
Source
Professional Roofing / National Roofing Contractors Assn
Keyword(s)
polyisocyanurate; insulation; r-value; ASTM
Abstract
Faced rigid board polyisocyanurate insulation is the most common type of thermal insulation used in the U.S. roofing industry; as such, the proper specification of polyisocyanurate insulation is an important consideration for successfully performing roof systems. Following are some considerations and NRCA’s recommended guidelines for specifying polyisocyanurate insulation.
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