Foam Board Roofing

Composed of a closed cell polyisocyanurate foam core bonded in the foaming process to 1 2 thick duraboard an expanded perlite mineral aggregate board on one side and a fiber glass reinforced facer on the other.

Foam board roofing. It s light weight provides ease of handling. Our polyurethane foam is renewable and water proof. Reduce heating and cooling expense by 25 50 improve drainage and get a rigid polyurethane foam roof you can walk on. It provides an r value of 4 per inch of thickness and is the cheapest type of foam board insulation.

This foam board insulation is the rigid pink or blue panels that can be found at home centers in many different thicknesses. These roofs are lightweight durable and seamless. Eps is used under roofing over foundation walls and beneath siding. Foam board sheathing insulation johns manville polyiso foam sheathing insulation boards provide a continuous layer of insulation to reduce thermal bridging and improve energy efficiency.

If you want to install rigid foam above your roof sheathing in climate zone 3 then 1 2 inch of rigid foam board is not ideal this rigid foam layer needs a minimum r value of r 5 and that s impossible with 1 2 inch of foam. As my article states you need a minimum of about 1 5 inch of eps 1 inch of xps or 1 inch of polyiso. Foam roofing advantages of dura foam.