Traps moisture easily; requires precise vapor barrier application to avoid rot. Polyurethane (PUR) / Polyisocyanurate (PIR): Performance: R-6.5 to R-7.2 per inch.
Higher compressive strength and lower water absorption.
Does the panel have an ICC-ES Evaluation Report and comply with ANSI/APA PRG-320?
Before signing a sales agreement with a supplier like Premier SIPS , Acme Panel, or Extreme Panel , verify these credentials:
Traps moisture easily; requires precise vapor barrier application to avoid rot. Polyurethane (PUR) / Polyisocyanurate (PIR): Performance: R-6.5 to R-7.2 per inch.
Higher compressive strength and lower water absorption.
Does the panel have an ICC-ES Evaluation Report and comply with ANSI/APA PRG-320?
Before signing a sales agreement with a supplier like Premier SIPS , Acme Panel, or Extreme Panel , verify these credentials:
