Spray Foaming Cedar Roof

We re looking at potentially 10 more years of this roof being ok.
Spray foaming cedar roof. Currently the roof gables are vented. We install with quality because we don t want repeat customers. Best reroofing and repair contractor honolulu oahu hawaii. They are exploring replacing the roof as well.
Spray foam can prove something of double edged sword where costs are concerned according to rlc engineering. Serving as both an air sealant and an insulator spray foam is estimated to reduce the standard hvac sizing by about 35 on average. Apparently in portland or when they finally change the roof they will scrape off the cedar and put down plywood to attach tar shingles to. Benefits and pitfalls of spray foam insulation according to the us environmental protection agency epa spray foam is recognized as a premier alternative to the batt insulation of years past.
While covering a given area with spray foam costs more initially than the equivalent amount of mineral wool batting or other insulating materials its ability to fill even tiny spaces completely enables it to provide greater thermal resistance leading to greater energy efficiency and. Also i think this is counterintuitive but should any venting be applied between rafters and spray foam. Shingle warranty after spray foam attic insulation. Spray foam insulation asphalt shingles flat gaco silicone hydrostop acrylic cedar wood shake metal copper steel tile monier japanese and solar fans.
The current roof is plywood sheeting with cedar shingles.