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WSRCA Follow-up Alert Bulletin - No. 2018-II-1 - Visible Knit-line Affected & Facer Irregularities in Rigid Polyisocyanurate Foam Roof Insulation
This Follow-up Bulletin is an addendum to our previous technical bulletin about this subject and includes additional recommendations.
WSRCA continues to monitor the observed quality of shipments of polyiso rigid foam insulation delivered to Members job sites over the last year or so, subsequent to WSRCA advising the roofing industry of concerns with knit-line attributed grooves and facer irregularities in the insulation.
This Follow-up Bulletin is an addendum to our previous technical bulletin about this subject, and includes additional recommendations encouraging Roofing Contractors to be proactive in their approach to ordering and receiving rigid polyiso foam insulation. Following is a brief review of several key points communicated in the “2017 WSRCA Technical Bulletin - Knit-line & Facer Irregularities in Rigid Polyisocyanurate Foam Roof Insulation Bulletin No. 2017-II-1”.
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