What is the R value of 4 inch foam board?

This product typically has an R value of 3.6 to 4.0 per inch of thickness. Expanded polystyrene insulation is similar to the foam used for packing “peanuts” and it’s typically used for insulated concrete forms also knows as ICF’s.

What is the R value of 2 inch foam board?

A wall utilizing STYROFOAM T-MASS Technology with a 2-inch exterior layer and a 4-inch interior layer of concrete along with a 2-inch layer of STYROFOAM extruded polystyrene insulation would result in a material R-value of approximately 11.33.

What is the R value of 3/4 foam board?

4.0
STYROFOAM/BLUE BOARD 3/4″ 4’X8′ DOW R-VALUE: 4.0 (SQUARE EDGE)/ P2S FACING | TWPerry.

How big is a Dow blue styrofoam insulation board?

Dow 1643 Blue Styrofoam SE Extruded Polystyrene Foam Square Edge (XPS) Insulation, Closed Cell, R-20, 30 PSI, 4-inch X 4 X 8 foot, Square Edge. A Multipurpose Below Grade Foundation Insulation Board. 24/Pallet. Price/Pallet.

How big is a sheet of foam insulation?

Compare Similar Foam Board Insulation current product Product Length (ft.) 2 2 2 8 ft Faced or Unfaced Faced Faced Faced Faced Interior/Exterior Exterior Exterior Exterior Interior/Exterior Coverage Area (sq. ft.) 8 8 8 32

How tall is insullam EPS foam insulation board?

Price/Pallet. (4-pallet min order, leadtime 3-7 business days) InsulLam EPS Foam Composite Insulation Board, 4×8 feet with 4 inch EPS Foam laminated to a 7/16 inch OSB Board. R= ~14.4. Minimum order of 11 sheets.

What kind of insulation is used in foam board?

Extruded Polystyrene Insulation(29) Polyisocyanurate Insulation(14) R-Value When making a selection below to narrow your results down, each selection made will reload the page to display the desired results. 2.7(1) 3(6)