Installing Siding Over Foam Insulation

You ll need longer nails for nailing trim and siding.

Installing siding over foam insulation. After going through my remodeling budget it looks like vinyl siding will be in my near future. Should tar paper or housewrap be used as well. I still want to put 2 in. Installation details are key.

Siding over rigid foam. Then i discovered that lp s installation instructions specify 1 5 inch x. It adds up to a. You ll need to properly flash window and door openings.

Wood siding including cedar siding should be installed over an air space regardless of the type of sheathing used. Some people use roofing nails but if a strong gust of wind gets under the siding it may not hold. Apply sealant around windows doors and trim. We had hoped to use 1 5 to 2 inches of eps rigid foam to the exterior of the sheathing then 3 4 inch x 4 inch plywood furring strips then lp smartside lap siding.

In fact the two products combined make your home super insulated from outside wind and weather. We re building a new home sw virginia with 2x6 studs on 24 inch centers. William costello is building a new house in southwest virginia that will be framed with 2x6s and will include up to 2 inches of exterior rigid foam insulation. 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.

We knew we had to use the 76 series smartside product for the 24 inch centers. One of the biggest questions homeowners have about house wrap is whether it can be installed together with foam insulation. With foam sheathing an air space is essential both to reduce the siding s water uptake and to provide a receptor space for the moisture in the siding. How to install vinyl siding over new insulation 1.

How to install rigid foam under siding 1. Set panels on the wall starting at one end of the house align the edges with the corner and bottom of the wall and. By installing rigid foam board insulation on the exterior walls you ll need to pay special attention to the details. Xps rigid foam insulation outboard of my structural sheathing so my question is.

Choosing the right furring strips is key to preserving a warranty for this engineered wood siding. A homeowner in southwest virginia wants to install engineered wood siding over exterior foam insulation but finds that the manufacturer s installation instructions raises concerns he hadn t thought of. The answer happily is yes. What are the risks of installing cedar siding directly over foil faced rigid foam insulation.

Cover the house walls with 4 by 8 foot sheets of rigid foam insulation typically 1 2 to 1 inch thick nailed to wood. The nails have a plastic cap that keeps them from damaging the foam. Snap a level chalk line all the way around the house at the bottom of the walls using a tape measure level and. Always follow the manufacturer s instructions for installing rigid foam insulation.

One new wrinkle for many builders is walls built with fiber insulation between the studs plus rigid foam insulation applied over the outside walls. Installing house wrap with rigid foam insulation. Fit the rigid foam insulation snugly and seal all seams with the specialized tape.