Natural Gas And Foam Roof Insulation

Spray polyurethane foam spf is a popular insulation product for homes and buildings.

Natural gas and foam roof insulation.

Not long ago someone even told me that in florida roofing companies won t let their workers go up on roofs with open cell spray foam because the roofs are so spongy the guys fall right through. Especially for roofs and attics. It rots roofs people have told me. Air tight homes require sealed combustion hvac appliances and mechanical ventilation.

A while back i wrote about the incompatibility of putting an atmospheric combustion furnace in a sealed attic. New house spray foam attic gas heat and water heaters c smith posted in general questions on february 12 2014 08 46am i am building a new house and want to foam the roof. Murmurs and hearsay about open cell spray foam insulation have been gaining traction for a while. Liquid natural gas insulation lng insulation polyisocyanurate insulation mechanical insulation iso c1 lng pipe insulation and equipment insulation dyplast s iso c1 polyisocyanurate mechanical insulation is the optimal insulation for the vast majority of cold temperature systems within an lng facility.

Rigid board insulation is made to be used in confined spaces such as exterior walls basements foundation and stem walls concrete slabs and cathedral ceilings. Spray polyurethane foam insulation can achieve air tightness of 0 10 to 0 20 air changes per hour. One a new type of spray in foam is calledicynene foam. There are urethane foam products designed to spray directly on top of existing flat roof surfaces and then have a gravel ballast or membrane seal applied over the foam.

Sealed combustion appliances fueled with natural gas cost less to operate than electric ones. Roof replacement is extremely expensive and difficult to justify for energy savings only. There are several new types of spray in place foam insulation. It should not be confused with the old uf foam insulation.