FlintBoard™ ISO-T

CertainTeed FlintBoard ISO-T Tapered Polyisocyanurate Roof Insulation is manufactured in a tapered profile to offer the combination of high thermal value plus promotion of proper roof drainage.

FlintBoard ISO-T tapered polyiso roof insulation is specifically recommended for hot asphalt, coal tar BUR, modified bitumen and single-ply membrane roofing systems.  FlintBoard ISO-T is also available in 25-psi formula.  It is produced in a variety of thicknesses; 4' x 4' panels only.