High-performing, lightweight sheathing that’s designed to give your productivity a boost.
Available in 1/2 in. and 5/8 in. thicknesses, USG Securock® Brand UltraLight Glass-Mat Sheathing is a lightweight, noncombustible, moisture- and mold-resistant panel designed for use under exterior cladding where conventional gypsum sheathing products have traditionally been used. Formulated to achieve all the strength and performance characteristics as standard USG Securock® Glass-Mat Sheathing at a significantly reduced weight, these panels are warranted for up to 12 months after application.