Window install question (is it proper or not)
Is there any proper reason why an install of a standard window would have the bottom flange taped to the siding of the home?
As in, you make a sill, put the window into the rough opening and on top of the sil, level/plumb etc, then nail the four flanges on the outside into the siding/housewrap. Also caulk etc, as per manufactures requirements.
One done with that, my understanding is you then tape the two side flanges to seal the PVC to the house wrap. Then you take another single piece of housing tape and put it across the top flange of the window and over the two other bits of tape to seal it there.
The bottom flange is (to my knowledge) always left un-taped to let any moisture that may somehow get behind, out.
Is there *any* reason to actually tape that?