Foam Board Insulation R Value

It provides an r value of 6 per inch of thickness and often comes foil faced to help reflect radiant heat.

Foam board insulation r value.

Additional r value for a masonry wall constructed using these materials needs to add the insulating value of additional wall components typically included such as 1 solid foam polyisocyanurate r 8 extruded polystyrene r 5 expanded polystyrene r 4 or 1 of perlite r 2 7 and for an exterior air film winter no wind r 0 17 an interior. Rigid foam insulation packs a lot of r value into a relatively thin package. Used in this way the foam lowers the loss of energy through framing members a phenomenon called thermal bridging and increases the overall r value of the roof or wall assembly. For every type and material of insulation check the r value per inch of thickness that the manufacturer has listed.

0 56 in x 4 ft x 8 ft 1 unfaced polystyrene foam board insulation item 511270 model 100000050497. This is the product that i typically use to insulate basement walls. Typically a higher insulation r rating means better climate control and better energy efficiency for your home. 0 56 in x 4 ft x 8 ft.

Polyiso comes in several thicknesses and is used over house sheathing underneath siding or in attic spaces where its reflective properties are very effective. A higher insulation r value usually means a higher price point as well. Ft to the compare list. This is an even more dense and more expensive foam board insulation.

When making a selection below to narrow your results down each selection made will reload the page to display the desired results. Kingspan insulation r 3 common. Compare click to add item insofast exi 2 5 r 10 eps foam board insulation panels 40 sq. Xps has an r value of 4 5 to 5 0 per inch of thickness.

Fiberglass insulation is less than half the price of rigid foam insulation when calculated by r value per square foot. It s made of environmentally sound closed cell polyisocyanurate foam bonded to a durable white matte non glare aluminum facer and a reflective reinforced aluminum facer. Because rigid foam plastic insulation products are not all aged in accordance with the same standards it is useful to publish comparison r value data. This insulation board is probably one of the most widely used foam board insulation products in the residential construction industry.

Rmax r matte plus 3 1 2 in. It is often used as a layer of continuous insulation on exterior walls and in the roof. Add to list click to add item insofast exi 2 5 r 10 eps foam board.