North Country Slate has made available a lightweight slate roofing option that is 100 percent natural slate but up to 40 percent lighter than traditional slate roofing. Weighing less than 6 pounds per square foot, the product is viable for most structures and eliminates the need for added hooks, battens or rails that other lightweight systems require. It is comprised of two critical components: slate shingles and a patented interlayment. The shingles are 1/4- to 3/8-inch thick, 12- to 14-inches long and installed with a 4-inch overlap versus the comparable 10.5- to 13.5-inch overlap of a traditional slate roof. The 21-inch-wide HDPE interlayment is installed between each course of slate as a weather and UV barrier and reduces the quantity of slate required. The system offers savings in overall roof weight, installation labor and shipping costs.
Lightweight Slate Is Viable for Most Structures
