![]() ![]() Quietwalk is felt and a vapor barrier made for under laminate and engineered wood as well as other floating floors like bamboo and luxury vinyl plank. Some are just the foam, which is the type I would use over wood subfloors. And Kahrs makes a polyethylene foam with 3 mil poly plastic for their engineered floors. ![]() The term 2 in 1 is rather confusing in this sense, as some are moisture-resistant and some have vapor barriers, but they are very thin.Ĭheck with the flooring company and your contractor to make sure you have an appropriate vapor barrier, if one is required.Ĭali Bamboo brand makes a good polyethylene underlay with foil as the vapor barrier, made for their floating floors. If you are looking for a vapor barrier, make sure it has one attached. I find that very convenient.Ī “2 in 1” will usually have polyethylene foam and a thin layer of plastic. This is the type of foam that comes pre-attached in some laminate lines. It’s not a complete vapor barrier, so it can breathe, which is great for upper-level floors. This provides some cushioning which is necessary under flooring types like laminate. It’s very simple – it’s one of the safest plastics in terms of odors and offgassing (it’s zero-VOC).
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