Specifying specifics

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.

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

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