Weighing in at 23 pounds per 250-foot roll, CertainTeed’s new RoofRunner synthetic roofing underlayment has a high-traction surface designed for wet or dry walkability. The maker says the material resists tearing caused by stretching, high winds, and foot traffic, and because it grips the roof’s surface, it won’t pull against mechanical fasteners. It’s impermeable but reportedly withstands 90-day UV exposure. Pricing not available. certainteed.com
A Lightweight Roofing Underlayment
CertainTeed roofing makes walking safe, wet or dry, and offers water and wind resistance for nasty weather.
