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Question DetailsAsked on 10/25/2013

I had vinyl replacement windows installed, the installer didn't use any sill tape. Is this correct procedure?

New build vinyl windows with integral flange were removed. house doesn't have house wrap installed. the new windows were centered on a 2x6 wall leaving 1 inch of sill exposed past the exterior of the window. j-channel and exterior flashing were then installed. I asked installer about the sill flashing tape and was told that was for new build only. They didn't seem to understand the difference between house wrap (tyvek) and sill tape (protect-o-wrap or butyl tape).

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I answered this a couple of weeks ago but guess the answer got lost - or duplicate listing.

You are right, but in most areas not required by code - just by good practice. I am afraid unless you can find a local building code requirement or window manufacturers recommended procedure requiring butyl or bituthene water shield, you do not have much of a leg to stand on in getting the contractor to come back, remove window, and do it right if it was not specified in the contract.

Answered 6 years ago by LCD

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