Foam Board Insulation Under Vinyl Siding

The nails have a plastic cap that keeps them from damaging the foam.

Foam board insulation under vinyl siding.

This is typically used to go over the existing siding in order to create an even. Apply sealant around windows doors and trim. Some people use roofing nails but if a strong gust of wind gets under the siding it may not hold. Plus rigid foam insulation applied over the outside walls.

Always follow the manufacturer s instructions for installing rigid foam insulation. Exterior rigid foam board insulation can make a significant difference in overall thermal. Installing foam board insulation under vinyl siding improved moisture control. Does foam board insulation under siding help save energy.

Depending on the scope of your project your budget and how much energy savings you re aiming for all three of these solutions can be used on their own or in combination with each other to meet your energy savings needs. Fit the rigid foam insulation snugly and seal all seams with the specialized tape. In reality rigid foam board which sometimes comes in fanfold usually only has an insulating factor of r 1 and does not add any appreciable insulation effect to your home. To secure the foam use two inch cap nails.

Insulated vinyl siding is standard vinyl siding with a backing of solid rigid foam insulation. Almost any type of siding can be installed over the rigid foam cedar or redwood planks exterior plywood sheets cement fiber board or vinyl siding are common options. Hollow vinyl solid pvc. Blown in flat foam insulation and insulated vinyl siding are all popular ways to improve energy efficiency.

By filling the voids behind the siding s stepped profile the insulation makes the complete material stiffer and more resistant to warping and movement than conventional vinyl siding. We show z flashing below the first course of siding and we show perforated board wrapped with insect. And even though some manufacturers call it rigid foam insulation for the purpose of vinyl siding it basically has the same insulating value as a piece of plywood. One of the biggest advantages to installing exterior rigid foam board insulation is improved.

1 2 polystyrine foam board insulation.