Hypalon Single-Ply Roofs

Continuous UV exposure is tough on Hypalon (CSPE) roofs. The sun and heat can cause heavy chalking and surface cracks, as well as pinholes in the membrane. The good news is that you don’t have to take on the cost of a complete tear-off and replacement. If your Hypalon roof is a good candidate, our SEBS coating systems provide an excellent solution to cover reinforcement scrim, protect against surface cracks and seal out moisture.

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Truco’s Eterna-Seal rubber coatings provide a proven, economical alternative to hypalon roof replacement. Introduced in the early 80’s as an alternative to EPDM, Hypalon quickly gained a substantial share of the commercial/industrial roofing market. It’s heat weld-able seam and white color were preferred by many roofing specifiers to black membranes that rely on adhesives for seam integrity.

Of course, all roofing materials have a limited life cycle. Extended weathering of Hypalon (also known as CSPE or chlorosulfinated Polyethylene) has revealed substantial chalking of the membrane as a consequence of prolonged UV exposure. Such was the case at SQUARE D Corporation in Knightdale, NC. As the sheet aged, the Chalking became more pronounced. Rain washed away loose chalk, leaving the membrane thinner. Left unchecked, the membrane eventually forms small pinholes. Once the pin holing is sufficient to reach the reinforcing fabric, moisture can then wick through the scrim and drop into insulating boards via the fastener.

In some cases, deterioration of the insulation and corrosion of the fastener can occur without substantial evidence of leaks within the building. A timely diagnosis of the roof assembly, including a moisture scan and calibration of the membranes current mil thickness is recommended. Resurfacing Hypalon roof membranes with Truco’s non-chalking Eterna-Seal coatings is an unobtrusive ( no down time within the facility) proven (29 year track record), and economical (approx. 1/3 replacement cost) solution. Roofs are expensive. The maintenance and restoration of these membranes can result in savings measured not in hundreds or thousands of dollars, but in hundreds of thousands of dollars.

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