I have always taken that for granted. How else would you get it to stay without puncturing it? Double-sided tape?

Moreover, you staple to the studs where a construction board of some sort will later be mounted. The construction board will then "seal" against the stud, so the "draft" through the hole should be minimal if even measurable.
 
I agree with vojma. If you want to be EXTRA sure, you can always tape over the staple spots with tape intended for vapor barrier plastic.
 
Thank you for the answers!
Yes, that must be how to do it!

Best regards
Fredrik
 
...and if you miss taping a single hole, the house will rot away within a couple of years. ;)
Take most of it with a pinch of salt. :)
 
But sometimes as a company you have both suspenders and a belt, and also a helmet, nail guard, etc. ..... In the best of worlds, there are no electricians who have to go through with pipes and boxes.
 
Agree with the previous speaker, the manufacturer wants to absolve themselves from everything, just slap it on.
 
Actually, it should be glued up, but everyone staples and it probably doesn't matter.
 
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