Foam Board Insulation R Value

0 56 in x 4 ft x 8 ft.

Foam board insulation r value.

Polyiso comes in several thicknesses and is used over house sheathing underneath siding or in attic spaces where its reflective properties are very effective. For example insulating a 10 square foot wall area to r 15 costs about 3 40 to 4 00 with fiberglass insulation while a comparable r value for rigid foam costs roughly 10. Compare click to add item insofast exi 2 5 r 10 eps foam board insulation panels 40 sq. It provides an r value of 6 per inch of thickness and often comes foil faced to help reflect radiant heat.

A higher insulation r value usually means a higher price point as well. 0 56 in x 4 ft x 8 ft 1 unfaced polystyrene foam board insulation item 511270 model 100000050497. Typically a higher insulation r rating means better climate control and better energy efficiency for your home. Add to list click to add item insofast exi 2 5 r 10 eps foam board.

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. Ft to the compare list. It is often used as a layer of continuous insulation on exterior walls and in the roof. 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.

This is an even more dense and more expensive foam board insulation. This is the product that i typically use to insulate basement walls. Xps has an r value of 4 5 to 5 0 per inch of thickness. R values vary depending on many factors including the mean temperature at which the test is conducted and the age of the sample at the time of testing.

Kingspan insulation r 3 common. For every type and material of insulation check the r value per inch of thickness that the manufacturer has listed. Rigid foam insulation packs a lot of r value into a relatively thin package. R 3 2 polyisocyanurate rigid foam insulation board r matte plus 3 thermasheath 3 is rigid foam r matte plus 3 thermasheath 3 is rigid foam plastic thermal insulation board.

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. Fiberglass insulation is less than half the price of rigid foam insulation when calculated by r value per square foot. This insulation board is probably one of the most widely used foam board insulation products in the residential construction industry.