Tapered ValuTherm™ Roof Insulation
Tapered ValuTherm™ is a rigid roof insulation board composed of a closed cell polyisocyanurate foam core bonded in the foaming process to universal fiber glass-reinforced facers. Tapered ValuTherm is designed for direct application to steel and other roof decks to promote positive drainage. Tapered ValuTherm meets the material requirements of ASTM C 1289, Type II, Class 1, Grade 2 and Federal Specification HH-I-1972/Gen and HH-I-1972/2. Conforms to CAN/ULC S704, Type 2, Class 2 (See CCMC Evaluation Report 13058-L). Tapered ValuTherm is also available as precut miters and precut crickets.
Tapered ValuTherm provides high thermal insulation value over metal, nailable and non-nailable roof decks in built-up, modified bitumen and single ply membrane roofing systems. It may be applied using hot bitumen, cold adhesives or mechanical fasteners. The universal facer on the top and bottom side provides a suitable surface for mechanical attachment to a structural deck as well as a suitable surface to apply hot asphalt or cold adhesive. Tapered ValuTherm is the ideal insulation for both new construction and re-roofing where ponding water or positive slope is a concern.
Tapered ValuTherm has been rated in FM 1A-60 and 1A-90 fire and wind-resistant systems for BUR, modified bitumen and single ply systems in specific constructions. It has been classified by Underwriters Laboratories Inc. as an approved roof insulation in many Class A roof constructions and Roof/Ceiling hourly fire-rated assemblies. It also has been classified by Underwriters' Laboratories of Canada.
JM supports NRCA Bulletin #9 in recommending that a cover board of Fesco® Board or 1/2" (13 mm) Retro-Fit™ Board be installed over foam insulations in hot bituminous membrane systems.
ValuTherm is not covered under the JM Peak Advantage Guarantee. Refer to the JM roofing membrane systems to identify compatible insulations.
Data Sheets & MSDSs