Vinyl Siding Overlay

[ray66v]

How do you detail around the doors and windows & corners with the added thickness of the insulation behind the vinyl? Can you buy deeper C-channels?
Yooper Dave

This is why I would not use anything thick, (i.e. more than 1/4"), under the siding. Even if you go through the trouble to build every thing out it still usually looks odd.

If you really want a nice job, pull the old siding and install 7/16 OSB with a layer of house wrap, (the wrap is necessary because some water does get behind vinyl siding). It would not be that tough, and would be worth the effort.

 

[builder2]

Yooper Dave,

What you need to level out the surface of the clapboard siding for the new vinyl is 1/4" foam fanfold insulation. It comes 3' x 50' and I use a roofing stapler to fasten it on the edges (high spot) of the clapboards. Any siding supplier will usually have it in stock. Then use 1 3/4" - 2" roofing nails to install the siding and vinyl trim. Your corner and window trim boards usually stick out past the clapboards about 7/16" and with the 1/4" insulation installed you still have something to butt your j-channel to.


The thickness of the siding on the edge is what makes vinyl lay out flat on the wall. Quest (by Alcoa) is a good siding that has about 7/8 thick ribs on it and you can manipulate the nails in and out to cover most wall deformities.

Did you get the snow we got here in Mich. last nite? I have a son by Osh Kosh and know you have had plenty of snow that way this year.

Good luck on your job,

Paul