CedAir-Mat® is a ventilation mat used in cedar roof construction. The 90% open mesh creates an airspace/cavity that is perfect for promoting air flow in all directions between the metal panels and sheathing.
Click below to view the virtual brochure and installation guide!
Install plywood roof sheathing onto rafters. Install roofing felt or ice dam protection membrane over sheathing. Check local codes and manufacturer’s recommendations for specific requirements.
Install CedAir-Mat® over roofing felt, ice protection membrane, and metal edge flashing or drip edge. Ensure CedAir-Mat® material is installed flush against edge of the flashing or drip edge. Carefully trim the CedAir-Mat® material at all penetrations with a utility knife or scissors.
When installing cedar or alternate material shingles, unroll CedAir-Mat® horizontally just ahead of the shingles as they are installed. Tack or nail CedAir-Mat® in place every three square feet. Do not overlap the CedAir-Mat® material. Butt each course tightly against the previous course and at vertical seams.
At ridge locations, extend CedAir-Mat® material over the ridge and butt against the material on the opposite side of the roof. If a ridge vent is utilized, follow the ridge vent manufacturer’s recommendations for underlayment material installation.
Apply roofing materials using manufacturer’s recommended fasteners and instructions, allowing for the additional 3/8″ thickness of the CedAir-Mat® material.
Visit us at the 2021 JLC Live New England show! The event was originally scheduled for March 24-27, 2021, but has since been rescheduled to August 11-14, 2021. The event is taking place in Providence at the Rhode Island Convention Center, and the exhibit hall will be open Friday and Saturday, August 13-14, and conference …