Rigid Foam Insulation Thickness

Rigid foam sheets are sold in several thicknesses.

Rigid foam insulation thickness.

If you are looking for a substitute for rigid foam insulation that isn t made of plastic or petroleum you might want to consider using cork. As a foil faced polyisocyanurate foam insulation enerfoil tm s r value actually more than doubles. Thick are usually available by special order. 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.

Amazon s choice for rigid foam. For a 1 in thick 4 8 panel comes unfaced or with a number of different plastic facings. It is denser than eps and provides more r value with a rating of 5 per inch of thickness. 1 16 of 510 results for rigid foam insulation price and other details may vary based on size and color.

Excelsis design pack of 15 foam boards acid free 16x20 inches many sizes available 3 16 inch thick mat white with white core foam core backing boards double sided sheets 4 5 out of 5 stars 671. It is often used as a layer of continuous insulation on exterior walls and in the roof. This foam board insulation is the rigid pink or blue panels that can be found at home centers in many different thicknesses. Thicker sheets up to 6 in.

Most lumberyards carry insulation ranging from 1 2 in. Rmax r matte plus 3 1 2 in. Rigid foam insulation packs a lot of r value into a relatively thin package. Falls in the middle of the three types of rigid foam insulation in both cost and r value used most in walls or below grade applications recyclable and at about r 5 per inch costs around 42 per sq.

Eight inches of poor quality insulation may have a higher and better r value than one inch of top quality insulation. 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. This foam board insulation is available with straight or tongue and groove edges to help limit air movement.