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.
The subtitles within the video allude to our R-Vent® product, however this video demonstrates the proper installation techniques for our CedAir-Mat® product.
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.
21st Century Building Expo & Conference 2020 With the recent spikes in COVID-19 cases and hospitalizations as well as the restrictions imposed pursuant to the Governor’s Executive Orders, the North Carolina Home Builders Association (NCHBA) has made the difficult decision to cancel the 2020 edition of the 21st Century Building Expo & Conference …