Rigid Foam Insulation Under Siding

One of the biggest advantages to installing exterior rigid foam board insulation is improved.

Rigid foam insulation under siding.

Fit the rigid foam insulation snugly and seal all seams with the specialized tape. To secure the foam use two inch cap nails. Always follow the manufacturer s instructions for installing rigid foam insulation. Installing foam board insulation under vinyl siding improved moisture control.

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. 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. Fanfold foam residing board. They keep your home at a comfortable temperature without the need to crank your heat.

The products are easy to handle score cut and install and no special tools are needed. You can even place it under the foundation slab. Rigid foam insulation is one of the most important and efficient forms of insulation. It is designed to prevent a house from losing heat.

Fanfold foam residing board is a thin perforated extruded polystyrene foam board faced on one side with a plastic film facer and combines proven xps foam technology with a unique design to enhance the application of new or replacement siding. Install it anywhere from the roof to the foundation. Set panels on the wall starting at one end of the house align the edges with the corner and bottom of the wall and. Apply sealant around windows doors and trim.

How to install rigid foam under siding 1. Siding over rigid foam a vented drainable air space keeps wood siding dry and stable. Rigid insulation is one of the best tools to reduce your energy costs. The nails have a plastic cap that keeps them from damaging the foam.

Although rigid foam insulation is more expensive than fiberglass insulation it is more efficient. Some people use roofing nails but if a strong gust of wind gets under the siding it may not hold. Heating costs increase every year making insulation more and more important. Measure the walls from top to bottom with a tape measure and buy either 4 by 8 foot or 4 by 9 foot sheets of rigid.