I'm stumped on how to "properly" install vapor barrier. I've got is a
10' roll (folded, actual roll dimension is 5'). Basement walls are
7.5' high but I need to run barrier up into the joist space to fully
seal the area.
On a straight flat wall, no problems. When it comes to corners and
other obstacles (joists, overhangs, etc.) I just can't do the plastic
origami that seems to be required. I either end up having excessive
folds in the plastic or I make an imprecise cut to get around the
object. Either way, the job looks sloppy.
Adding to that, most local installations make use of acoustical
sealant around the perimeter of the barrier...given my current trial/
error approach, that's going to get very messy.
The alternative I've considered is to cut my pieces to size for the
plain wall sections, then cut additional strips to work around the
irregular areas. This will result in many extra seams (and potential
Any pointers would be greatly appreciated.