Foam Board Insulation Under Vinyl Siding

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.

Foam board insulation under vinyl siding.

We show z flashing below the first course of siding and we show perforated board wrapped with insect. 1 2 polystyrine foam board insulation. The nails have a plastic cap that keeps them from damaging the foam. The adhesive used to attach the siding to the vinyl actually cures to create a permanent bond between the two components.

Insulated vinyl siding is standard vinyl siding with a backing of solid rigid foam insulation. 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. Exterior rigid foam board insulation can make a significant difference in overall thermal. Foil faced foam board insulation.

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. Insulated foam sheets are also used as an insulated sheathing underlayment for exterior siding. Rigid foam insulation and vinyl siding. Blown in flat foam insulation and insulated vinyl siding are all popular ways to improve energy efficiency.

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. The vinyl siding acts as a skin permanently adhered to the insulating foam core. Insulated vinyl siding is made of two primary components. This eliminates thermal bridging which is the energy lost through wall studs.

To secure the foam use two inch cap nails. Fit the rigid foam insulation snugly and seal all seams with the specialized tape. This is typically used to go over the existing siding in order to create an even. The panels provide a continuous energy efficient surface.

Foil faced foam board insulation is a great idea but is not a good choice for hot. 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. Hollow vinyl solid pvc.

Some people use roofing nails but if a strong gust of wind gets under the siding it may not hold. Always follow the manufacturer s instructions for installing rigid foam insulation. Plus rigid foam insulation applied over the outside walls. Installing foam board insulation under vinyl siding improved moisture control.

In a typical situation.