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Roof Board - Johns Manville - Facility Management Product Release

Roof Board: Johns Manville

Johns Manville
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Invinsa is a resilient, lightweight roof board designed as a cover board. It provides a protective layer for the insulation while adding stability to the membrane. Its high-density polyisocyanurate technology is bonded to coated fiberglass reinforced facers to provide resistance to water and hail. The board has been tested in PVC, TPO and EPDM single-ply systems as well as the company’s JMClean Bond SBS modified bitumen roof systems. It is approved for many class A applications by FM Global and UL.

The board’s composition creates a low-dust environment. It allows easy scoring, cutting and snapping, and its low water-absorption characteristics and inorganic composition will not foster mold growth, according to the company. Its flexibility reduces breakage during installation and accommodates dips and other minor irregularities in existing roofs.


Content Category: Roofing



posted: 1/31/2007