Hypalon Roofing Problems

Hypalon roof restorations and repairs.

Hypalon roofing problems.

In a recent webinar on cool roofing a presenter discussed some concerns with the roofing industry s focus on single ply roof membranes based on thermoplastic polyolefin tpo. The secondary problem with hypalon membranes is chalking and cracking caused by uv exposure. Stevens has experienced problems with their ep and hypalon membrane roof systems. See this hypalon roof system specification for an idea of how a hypalon roof system is put together.

Here are three common causes of moisture below the roofing membrane. Pvc blend membranes manufactured by duralast. Provided by the conklin company. With the demise of hypalon roofing is thermoplastic polyolefin single ply the next logical step.

This roof surface simply wears away like with all roofing and we typically suggest a perfect resurfacing such as the prized silicone roof. The problem is never with the mechanical or structural components it s with the waterproof part. 777 roofs can easily make a hypalon flat roof waterproof. As the name implies single ply membranes rely on one membrane sheet layer to prevent leaks.

According to wikipedia the online encyclopedia hypalon was a product of dupont performance elastomers a subsidiary of dupont and noted for its resistance to chemicals extreme temperatures and uv radiation. This chalking leaves the membrane in an almost irreparable state necessitating the development of special primers and dual installation to install a patch or repair a seam. Viewable at burke industries website as a pdf document. We have seen more and more fairly subtle but important deficiencies with the following roof types.

The presenter noted that hypalon the trademarked chlorsulfonated polyethylene cspe supplied by dupont was. An old dupont product data sheet for hypalon. Hypalon roof membrane product specification.