new construction window over old layer of siding

AGWhitehouse · 06-29-2012, 10:44 AM

Quote:

Originally Posted by Tom Struble

this is not always the case,depends where your drainage plane is which could be some distance away from the sheathing

Of course there are building variations beyond comprehension, but on a typical stick-built home a new construction flange should be on the sheathing for optimal results. Can it work elsewhere? Sure can, but I won't guarantee or recommend it.

Tom Struble · 06-29-2012, 04:49 PM

and why is that?you don't really understand the installation or flashing details?

never heard of adding foam insulation ?is this an uncommon thing?

would you drain your window between the sheathing /wrb and the foam? or would you say it was a better idea to pack out the windows and put your drainage plane directly under the siding?

Tom Struble · 06-29-2012, 09:10 PM

the right place for a window isn't always at the sheathing,additional layers of siding,insulation thickness,strapping for siding etc..all these factors should be used to determine proper placement of the windows

sunk in or recessed windows are not easily flashed and i know many here know how to put the black sticky tape on but many have no regard for where they are sending the water that the flashing diverts

**kwikfishron** · 06-30-2012, 03:17 AM

Quote:

Originally Posted by AGWhitehouse

on a typical stick-built home a new construction flange should be on the sheathing for optimal results.

What if the typical stick-built home has two or even three layers of siding on it?

Since we're not talking new construction here, "optimal results" are decided on a case by case basis.

AGWhitehouse · 07-02-2012, 10:53 AM

Quote:

Originally Posted by kwikfishron

"optimal results" are decided on a case by case basis.

This is very true...

But, the O.p. say's 1 layer of siding, not 2, not 3. And Mr. struble it's fan-fold foam, not 1" or other rigid dimensional product.

So, given those parameters (THE OP!) my recommendation is to place the flange at the sheathing. Recommend to them (FOR THE OP's CONDITIONS) your point of view. But, if you want to pick a fight about a window in some theoretical wall with a random assortment of materials, you're on your own...