Always follow the manufacturer s instructions for installing rigid foam insulation.
Installing siding over foam insulation.
Then i discovered that lp s installation instructions specify 1 5 inch x.
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.
Apply sealant around windows doors and trim.
Xps rigid foam insulation outboard of my structural sheathing so my question is.
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.
By installing rigid foam board insulation on the exterior walls you ll need to pay special attention to the details.
How to install rigid foam under siding 1.
You ll need longer nails for nailing trim and siding.
Installation details are key.
You ll need to properly flash window and door openings.
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.
Snap a level chalk line all the way around the house at the bottom of the walls using a tape measure level and.
To secure the foam use two inch cap nails.
Should tar paper or housewrap be used as well.
Is it ok to fasten the vinyl siding through the foam or do i have to apply furring strips.
In fact the two products combined make your home super insulated from outside wind and weather.
It adds up to a.
Choosing the right furring strips is key to preserving a warranty for this engineered wood siding.
Cover the house walls with 4 by 8 foot sheets of rigid foam insulation typically 1 2 to 1 inch thick nailed to wood.
We knew we had to use the 76 series smartside product for the 24 inch centers.
Josh braun via email.
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.
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.
Some people use roofing nails but if a strong gust of wind gets under the siding it may not hold.
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.
What are the risks of installing cedar siding directly over foil faced rigid foam insulation.
How to install vinyl siding over new insulation 1.
Fit the rigid foam insulation snugly and seal all seams with the specialized tape.
After going through my remodeling budget it looks like vinyl siding will be in my near future.
The nails have a plastic cap that keeps them from damaging the foam.
We re building a new home sw virginia with 2x6 studs on 24 inch centers.
I still want to put 2 in.
Wood siding including cedar siding should be installed over an air space regardless of the type of sheathing used.
One of the biggest questions homeowners have about house wrap is whether it can be installed together with foam insulation.
