This month's Product Focus takes a look at the underlayment products available to roofing contractors.

RoofRunner AIR is a breathable synthetic roof underlayment with a multilayer coated structure that promotes rapid roof deck drying.

The approval provides roofers across the state of Texas with an alternative to traditional ASTM D226 standard roofing underlayments.

Westlake Royal Building Products introduced SwiftGuard, a synthetic roofing underlayment for steel, tile, shingle and shake roofing.

Roofing contractors will want to keep an eye out for synthetic underlayments meeting the ASTM’s new standard in the coming months.