High-performance and regular Sheathing

ISOLext is an exterior natural fibreboard sheathing panel coated with asphalt on all 6 sides, providing protection from the elements. ISOLext also offers a permeance to water vapour (+/-18perms), thus enabling moisture to exit the wall structure, rather than remaining inside the wall cavity and potentially leading to the development of mold and decay. ISOLext is available both in a regular 7/16” panel and in a High Performance ½” panel.