Installing Vinyl Siding Over Foam Insulation

Some people use roofing nails but if a strong gust of wind gets under the siding it may not hold.

Installing vinyl siding over foam insulation.

Is the fan fold foam an adequate weather resistive barrier. To be an effective weather resistive barrier though the seams of the fan fold must be carefully taped since any seam can provide a pathway for water to reach the structure under the foam. The answer happily is yes. Always follow the manufacturer s instructions for installing rigid foam insulation.

Apply sealant around windows doors and trim. Rigid foam will shed any water that gets past leaky vinyl siding. If the wood siding is beveled or lapped you. Before installing vinyl siding over existing wood siding we first install a layer of fan fold foam insulation.

Fit the rigid foam insulation snugly and seal all seams with the specialized tape. This type of insulation may change and flatten the specialty built in contour of the panel causing the siding to bulge or ripple. Of foam and you can t use furring strips which are not a flat solid surface without voiding the warranty. It typically is installed over rigid foam board insulation fastened to wood wall sheathing.

A corresponding editor paul fisette responds. It adds up to a robust system. Installing vinyl siding over wood siding wood must be sound. The by the book answer to your question is that vinyl siding manufacturers require a flat solid supportive surface and limit foam installed under their siding to a maximum of 1 in.

Siding over rigid foam. In fact the two products combined make your home super insulated from outside wind and weather. Vinyl siding must be installed against a flat surface. Existing wood siding must be in good shape with no rot or mold and fastened tightly to the wall.

Vinyl siding can be used in original construction or as a replacement for old siding. This detail is used with both new construction and also with renovation work. So technically speaking you can t nail through or even use 2 in. Installing house wrap with rigid foam insulation.

Plus rigid foam insulation applied over the outside walls. To secure the foam use two inch cap nails. The nails have a plastic cap that keeps them from damaging the foam. One of the biggest questions homeowners have about house wrap is whether it can be installed together with foam insulation.

Below are some of the design details along with the benefits.