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New Standard Proposed for Liquid-Applied Polymers


ASTM is proposing a new set of test methods that will help support the growing number of roofing projects that use liquid-applied polymers.

Manufacturers, testing labs and specification writers will be able to use the standard as they sample, test and compare products, according to an announcement issued Friday (Jan. 13).

ASTM WK40123, “Test Methods for Sampling and Testing Liquid Applied Polymeric Roofing and Waterproofing Membranes That Are Directly Exposed to Weather,” is being developed by ASTM’s committee on roofing and waterproofing (D08).

© iStock.com / kulkann
ASTM's D08 commitee on roofing and waterproofing meets June 11-14 in Toronto. 
© iStock.com / kulkann

ASTM's D08 commitee on roofing and waterproofing meets June 11-14 in Toronto. 

The proposed standard includes ways to test liquid-applied polymeric materials that are cured to form roofing and waterproofing membranes that are directly exposed to all kinds of weather, ASTM says. By their nature, these materials are seamless and are useful when working with complex surfaces and custom-fit projects.

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These membranes have traditionally been used for waterproofing of elevated parking decks; however, their use for roofing applications is on the rise, said Phillip Moser, an ASTM member and a senior project manager specializing in building technology at Simpson, Gumpertz, and Heger.

“Delivery to the exact point of application in relatively small containers makes these products particularly attractive for small rooftop terraces, congested urban areas, and roofs that are not accessible by crane, where delivery of larger containers would create logistical problems,” Moser said.

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According to ASTM, the test methods would be used by manufacturers and testing labs as well as those who write specifications that indicate which test methods should be used to evaluate physical properties.

Interested partners are invited to join in the standards developing activities of the D08. The next committee meeting will take place June 11-14 in Toronto, Canada.

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For technical information, contact Moser at +1-781-424-3960 or psmoser@sgh.com.


Tagged categories: Associations; ASTM; Good Technical Practice; Liquid-applied coatings; Roof coatings; Roofing contractors; Roofing materials; Sealant; Sealers; Waterproofing


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