Existing window not being flashed with window tape
As an homeowner who is trying to make sure unnecessary shortcuts are not taken that cause issues down the road I was hoping to get an opinion. I have existing vinyl windows, the house sheathing was wrapped with hydrogap and on top of that 1 inch polyiso. First, no window flashing tape is being used. Instead they are using aluminum jamb extension that will overlap on the polyiso. caulked at the point of contact on the window frame. The polyiso will be covered with window trim. Is this adequate? He claims because the sheathing overlap the existing windows that he does not need to add window flashing tape and this jamb extension will keep out the water. Secondly, none of the insulation panels are taped on their points of contacts. I just don’t want to make a big deal about something if this is really a non issue.
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