Hard Rock. Compared with standard drywall, ToughRock Gypsum Board is less likely to crack, sag, or absorb moisture, the maker says. It also weighs 25 percent less and is Greenguard-certified for low VOC emissions. The product is suitable for interior walls and ceilings, veneer plaster base systems, and fire-rated assemblies. A 1?2-inch-by-4-foot-by-8-foot sheet costs about $8. Georgia-Pacific Building Products, 800/225-6119, gp.com/build

Roof Saver. Surround SR Underlayment is a waterproof synthetic polymer that’s 40 percent lighter than 30-pound roofing felt — as well as more durable and slip-resistant and less prone to tearing, says the maker. It’s unaffected by moisture and has a reflective surface that reduces heat buildup on the roof. According to the company, a 45.25-...

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