New Window And Siding Installation Over Foam Board

Air seal and insulate a nail fin window in a wall with exterior rigid foam insulation.

New window and siding installation over foam board.

New construction windows will be attached with the flanges to the 1 x 6 pt. Siding over foam insulation. It provides an r value of 4 per inch of thickness and is the cheapest type of foam board insulation. In new construction it typically is installed over wood wall sheathing wrapped with rigid foam insulation and a moisture barrier.

From there i would tape the seams install flashing over the entire top of the new window replace whatever foam board you had to remove and then put back the vinyl siding with j channel. If you are looking for insulation have an insulation crew who can blow in the insulation come and drill holes from the outside and blow in the insulation. But if you use. On existing houses old vinyl or metal siding must be removed but.

Spray foam and high quality sealant bridge all of the gaps between the framing shims and window for a durable and energy efficient installation. Since the brick mould that was removed was approximately 1 2 in width you ll have to re trim the new window with comparable trim boards. This detail is used with both new construction and also with renovation work. This foam board insulation is the rigid pink or blue panels that can be found at home centers in many different thicknesses.

In particular the foam sheathing should be minimum 15psi compressive strength rated. Use tape supplied by the manufacturer of the foam board. Eps is used under roofing over foundation walls and beneath siding. One new wrinkle for many builders is walls built with fiber insulation between the studs plus rigid foam insulation applied over the outside walls.

Siding over rigid foam. Seal the seams between panels wall corners and door and window openings once the entire house is covered with foam board. The standard method guide follows a more traditional installation approach whereby an integral flanged window unit is installed with the flanges mounted directly over the foam sheathing meeting specifications appropriate for this application. Installing foam board insulation under vinyl siding today more than ever before homes are being built with foam board insulation installed on the outside of the sheathing and under the siding.

Below are some of the design details along with the benefits. Even with 3 4 we have to build out the window and door frames so they are not recessed. 1 x 6 pt is installed around my window openings and will be flush with the furring strips.