Siding Over 2 Foam

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 2 foam.

So technically speaking you can t nail through or even use 2 in. The house has wrap under the siding. Advancing energy codes include high. Insulated foam sheets are also used as an insulated sheathing underlayment for exterior siding.

The house was build in the 19970 s 2 4 walls and pink insulation between the studs. Vinyl siding can be used in original construction or as a replacement for old siding. The panels provide a continuous energy efficient surface. 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. This eliminates thermal bridging which is the energy lost through wall studs. I am having the siding removed from our house and 2 foam board but under the siding. Siding over rigid foam a vented drainable air space keeps wood siding dry and stable.

Window door openings will be picture framed with boards inset into the foam layer 3 4 board over 1 1 4. The windows are being removed and moved out the 2 to line up with the foam board. The studs conduct more heat than the insulation between them. Planning to apply arb over boards then 2 polyiso then vinyl siding.

Will this cause any condensation issues.