Reflective Wrap. If your projects include flat roofs with exposed ductwork, Flex Clad duct and pipe wrap could help protect them against the elements. The self-sticking rubberized asphalt membrane has an aluminum facing to reflect the sun and a layer of cross- laminated polymers for tear resistance. According to the manufacturer, the product is self-healing if punctured with a nail or other fastener and will adhere directly to metal and to foil-faced foam duct insulation. It now comes in a 25-mil format as well as the conventional 40-mil. Available in aluminum, white, gray, and tan, it costs around $1.10 per square foot. MFM Building Products, 800/882-7663, flexclad.com.

Gas Blocker. VaporBlock 20 Plus plastic sheeting is intended for under-slab applications where soil-borne gases like radon are a concern. The manufacturer claims it’s 50 times less permeable than typical high-performance polyethylene vapor retarders. The company also says it’s much less expensive than comparable products. A 10-foot-by-150-foot...

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