Title
Not quite measuring up
Not quite measuring up
Date
7/2017
7/2017
Author(s)
Mark Graham
Mark Graham
Page(s)
24-25
24-25
Keyword(s)
Polyisocyanurate insulation thicknesses; length, width and thickness dimensions of polyisocyanurate insulation
Polyisocyanurate insulation thicknesses; length, width and thickness dimensions of polyisocyanurate insulation
Abstract
NRCA has received a limited number of reports of faced, rigid board polyisocyanurate insulation with thicknesses less than what was specified and indicated on the insulation’s package labeling being delivered from manufacturers to distributors and job sites. Following is information about these reports, as well as information about recognized allowable thickness tolerances and NRCA’s recommendations to roofing contractors for monitoring this situation.
NRCA has received a limited number of reports of faced, rigid board polyisocyanurate insulation with thicknesses less than what was specified and indicated on the insulation’s package labeling being delivered from manufacturers to distributors and job sites. Following is information about these reports, as well as information about recognized allowable thickness tolerances and NRCA’s recommendations to roofing contractors for monitoring this situation.