The capacity of an insulating material to resist heat flow. The higher the R-value, the greater the insulating power.
Open cell foam is full of cells that aren't completely encapsulated. In other words, the cells are deliberately left open. This makes the foam a softer, more flexible material. Closed cell foam is made up of cells that are, as the name suggests, completely closed. Closed cell foam being a higher density allows higher R value in smaller spaces such as 2x4 walls or 2x6 joists of a roof deck. It is sometimes the only product that will give you enough insulation in certain areas.
Our closed cell product offers a R value of 7 per inch.
Our Open cell product offers a 3.7 R value per inch.
In zone 5 Michigan counties (Allegan, Ottawa)
Exterior walls should have a exterior wall R value of 19.
In Zone 5 Michigan counties (Allegan, Ottawa) ceiling R value should be an R38. We offer an R38-R49 on homes we insulate.