Matt Lee is the owner of the Innovative Building Materials blog and a content writer for the building materials industry. He is focused on helping fellow homeowners, contractors, and architects discover materials and methods of construction that save money, improve energy efficiency, and increase property value.
Polyisocyanurate (polyiso) exterior wall insulation is a high-performing closed-cell, rigid foam continuous insulation that is bonded to various organic and inorganic facers on both sides. Polyiso accounts for over 75 percent of the insulation used in new and retrofit residential and commercial construction in the U.S.
While an emphasis on the quality of roofing is important, an equally important facet is often overlooked—the application of insulation below the roof deck
