How to Install Tyvek over existing Windows?

It should be fairly obvious. You wrap a whole wall with Tyvek, then you cut out the part that is over the glass and the frame but leave it over the window flanges. Tape the cut edges to the window flange/frame. Depending on exactly what the ice dam looks like, the Tyvek needs to go under it.

Don't rap it too hard or you can shake the wall and break things in the cupboards.

If you want to seal the house, wrap it with the Tyvek. With no window in place it is easy to cut and wrap into the opening, but since you can't do that, you just cut the openings close to the window. It should be over the window flanges and if you are using trim for the siding, it will go over the Tyvek.

For taping the tyvek, pella makes great tape available at Lowes or Home depot.... I forget which one but look for the display of Pella windows and they should have the tape. Also visit pella site and download instructions on installing their doors or windows. That should give you a good idea of what you are trying to accomplish.

replying to buffalobill, Nick wrote: