Skil says the MAG77LT is the lightest worm-drive saw on the market. It has a 53-degree bevel and 45-degree positive stop, while a 24-tooth carbide blade boosts impact resistance. The saw is wired to detect and adjust to a cut’s depth and features a multi-function wrench in the saw’s foot that can be used to access the oil plug or brush cap, adjust bevel nuts, and help change the blade. Skil, 877.754.5999;

Weather Shield combined thermal performance and price point in a new Signature Series collection of aluminum-clad wood window and patio doors that keep water out and limit weathering. It’s available with a pine or alder interior in four stains, white paint, or primer; exterior finish options include seven natural-toned colors and matching trim. Weather Shield, 877.452.5535;

Boral reinforced a polymer-asphalt blend underlayment with fiberglass to develop its alternative to synthetics. Boral Ply 40 can be used under shingle, shake, concrete, or tile roofing with less wrinkling and buckling than asphalt paper. The underlayment accepts nails and acts as a waterproof base for some torch-down systems. It’s available in four Western states. Boral, 909.737.0200;

DuPont formulated its Tyvek Fluid Applied Flashing to be brushed onto rough openings of residential windows and doors. The low-VOC vapor-permeable membrane requires only one coat and can be gunnedonto the surface and brush-ed into place when it’s as low as 25 degrees. The coating can handle nine months of UV exposure, its maker says. DuPont, 800.448.9835;

GAF mined New England quarries for the slate in its Americana roofing tiles. They are installed atop a specially designed waterproofing barrier, so there’s less weight than with other slate systems. The series comprises five slates whose traditional colors can be mixed and matched. The tiles are ¼-inch to 3/8-inch thick and ASTM C406-S1 rated—the highest rating for slate roofing. GAF, 800.766.3411;