Canadian Plastics

Polyurethane Could Be Solution to Roof Failure From Hurricanes

Canadian Plastics   



An expert at this year's Polyurethanes Conference 2004 presented an analysis of the most common causes of roof failure that occurred during hurricane Charlie. From photographs taken in the aftermath of the hurricane, Mason Knowles, executive direc...

An expert at this year’s Polyurethanes Conference 2004 presented an analysis of the most common causes of roof failure that occurred during hurricane Charlie. From photographs taken in the aftermath of the hurricane, Mason Knowles, executive director of the Spray Polyurethane Foam Association, identified the three most common modes of roof failure: failure of the roof deck; failure of the edge fastening system; and poor adhesion of roofing components to the deck.

To help prevent roof failure, Knowles suggested applying closed cell spray polyurethane foam to the underside of the roof deck to enhance wind uplift resistance. He also recommended use of roofing adhesive to fully adhere insulation boards and/or membranes to the deck.

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