Foam Board Insulation Under Vinyl Siding

Hollow vinyl solid pvc.

Foam board insulation under vinyl siding.

In a typical situation. Plus rigid foam insulation applied over the outside walls. Foil faced foam board insulation is a great idea but is not a good choice for hot. 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.

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. Does foam board insulation under siding help save energy. 1 2 polystyrine foam board insulation. The nails have a plastic cap that keeps them from damaging the foam.

We show z flashing below the first course of siding and we show perforated board wrapped with insect. 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. This is typically used to go over the existing siding in order to create an even. Apply sealant around windows doors and trim.

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. Installing foam board insulation under vinyl siding improved moisture control. Blown in flat foam insulation and insulated vinyl siding are all popular ways to improve energy efficiency. One of the biggest advantages to installing exterior rigid foam board insulation is improved.

To secure the foam use two inch cap nails. 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. Fit the rigid foam insulation snugly and seal all seams with the specialized tape. Some people use roofing nails but if a strong gust of wind gets under the siding it may not hold.

Foil faced foam board insulation.