The requirement for buildings to be designed with a continuous air barrier has been making its way into U.S. building codes ever since the state of Massachusetts first did in 2001 with the introduction of Section 1304.3.1 Air Barriers.
Restoration Millwork J-Pocket with Cut-out allows the cellular PVC trimboard to lie flush with siding around windows and doors with built-in nail flanges, allowing for more perfect miter cuts at the corners.
The company manufactures ICC-rated self-sealing screws for lath installation. The self-drilling screws for use with steel framing contain butyl rubber sealant in a bright green washer—the paper penetration is sealed simultaneously during installation.