Rigid Foam Insulation Under Siding

Heating costs increase every year making insulation more and more important.

Rigid foam insulation under siding.

Fanfold foam residing board. The nails have a plastic cap that keeps them from damaging the foam. Siding over rigid foam a vented drainable air space keeps wood siding dry and stable. Install it anywhere from the roof to the foundation.

One of the biggest advantages to installing exterior rigid foam board insulation is improved. Apply sealant around windows doors and trim. You can even place it under the foundation slab. 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.

Installing foam board insulation under vinyl siding improved moisture control. Foamular extruded polystyrene xps rigid foam insulation offers a comprehensive line of products in a wide choice of sizes thicknesses and edges with a lifetime limited warranty for the life of the home or building. Rigid foam insulation is one of the most important and efficient forms of insulation. Rigid insulation is one of the best tools to reduce your energy costs.

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. It is designed to prevent a house from losing heat. Exterior rigid foam board insulation can make a significant difference in overall thermal. 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.

Rigid foam insulation also known as insulating boards provide high r values. Set panels on the wall starting at one end of the house align the edges with the corner and bottom of the wall and. Some people use roofing nails but if a strong gust of wind gets under the siding it may not hold. The products are easy to handle score cut and install and no special tools are needed.

To secure the foam use two inch cap nails. 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. How to install rigid foam under siding 1. Fit the rigid foam insulation snugly and seal all seams with the specialized tape.