vapor barrier overlap
#1

I'm installing a laminate floor in my slab-on-grade house. I've flattened everything out with Plani/Patch and now I'm at the point where I need to put down a vapor barrier.
I'm going with 6 mil polyethylene but I'm not sure how much to over-lap the sheets before taping.
Can anyone advise me?
Thank you
I'm going with 6 mil polyethylene but I'm not sure how much to over-lap the sheets before taping.
Can anyone advise me?
Thank you
#2
If your using a good clear packing tape with a good perm rating, you don't have to go very far, an inch or two. A lot of laminate manufacturers are suggesting an 8" overlap and no tape needed!!! YIKES!
I go a couple 3 inches and tape with 3M packing tape, to seal it.
I go a couple 3 inches and tape with 3M packing tape, to seal it.
#3

I'm certainly no pro but there's no way I could sleep at night if I did that.
Plus, "wasting" that much would make you have to buy another roll.
I'm sure they'd be glad to sell it to me.
Plus, "wasting" that much would make you have to buy another roll.
I'm sure they'd be glad to sell it to me.