Closed cell foam insulation sheets


Rigid foam board insulation can be used throughout the home, but most often it is found in basement walls. If you are a do-it-yourself homeowner finishing your basement, this likely will be your first encounter with closed-cell rigid foam. The Exterior Walls Are Insulated With 2 Of Dense Closed Cell Foam And 3 1/2 Of Fiberglass Insulation, Called A Flash And Batt System. Special Attention Has Been Taken To Sound Proof Each Unit. The Party Walls Have A Partical Board, 7 Of Insulation, And Two Layers Of 5/8 Sheet Rock Separating Them. Shop (common: 1-in x 4-ft x 8-ft; actual: 0.9375-in x 3.875-ft x 7.875-ft) expanded polystyrene foam board insulation in the foam board insulation section of Lowes.com When closed cell foam is installed between framing the thermally bridging framing SUBSTANTIALLY robs it of it's potential performance. A 2x6 wall with 3" (R20) closed cell foam conducts about 45% more heat than a 2x6 wall with 5.5 (R20) of open cell foam or cellulose, despite having the same R value insulation. See: