Insulating Beneath Siding

Wall 3 r 19 in the cavity plus r6 1 foam board under the vinyl.

Insulating beneath siding.

Apply sealant around windows doors and trim. Wall 4 r 19 in the cavity plus r12 2 foam board under the vinyl. As a result the siding cups cracks and sheds paint. When new siding is installed the old siding can be left in place or torn off before the new.

To secure the foam use two inch cap nails. Behind this skin is a layer of expanded polystyrene eps that is form fitted to the stepped siding profile of the vinyl. The insulation is glued in place for a permanent connection. Continuous insulation under new siding has become a popular way to improve energy efficiency on.

Wall 1 insulated with only r 19. Fit the rigid foam insulation snugly and seal all seams with the specialized tape. Wall 2 insulated with high density spray foam at a nominal 4 inches in the cavity for a cavity r value of 24. Insulated vinyl siding has an outer skin made of polyvinyl chloride or pvc just like standard vinyl siding.

Installation of this insulation type under fiber cement siding can create an incredible 600 more energy efficient home. The nails have a plastic cap that keeps them from damaging the foam. In fact you can check if it is a correct insulation installation by pressing on the house siding. Plastic foam traps heat and moisture beneath the siding.

To be completely efficient this insulation type has to mold perfectly with the inside of your home siding. Some people use roofing nails but if a strong gust of wind gets under the siding it may not hold. Has 16 8 2 6 studs.