Insulating Beneath Siding

Behind this skin is a layer of expanded polystyrene eps that is form fitted to the stepped siding profile of the vinyl.

Insulating beneath siding.

As a result the siding cups cracks and sheds paint. Installation of this insulation type under fiber cement siding can create an incredible 600 more energy efficient home. Wall 4 r 19 in the cavity plus r12 2 foam board under the vinyl. Some people use roofing nails but if a strong gust of wind gets under the siding it may not hold.

3 ways to insulate siding and reduce home energy loss blown in insulation. The insulation is glued in place for a permanent connection. Has 16 8 2 6 studs. Wall 2 insulated with high density spray foam at a nominal 4 inches in the cavity for a cavity r value of 24.

Apply sealant around windows doors and trim. Insulated vinyl siding has an outer skin made of polyvinyl chloride or pvc just like standard vinyl siding. Hot sun can overheat wood siding causing it to dry excessively and crack. Continuous insulation under new siding has become a popular way to improve energy efficiency on.

Fit the rigid foam insulation snugly and seal all seams with the specialized tape. To secure the foam use two inch cap nails. Wall 3 r 19 in the cavity plus r6 1 foam board under the vinyl. The nails have a plastic cap that keeps them from damaging the foam.

Wall 1 insulated with only r 19. When new siding is installed the old siding can be left in place or torn off before the new. To be completely efficient this insulation type has to mold perfectly with the inside of your home siding.