CrawlSpace-DIY Vapor Barrier Tape (3 Pack) 4” x 180’ – Heavy Duty White Polyethylene Seam Tape for Crawl Space & Basement Encapsulation, Moisture Barrier Seal for Plastic Sheeting & Underlayment

This isn't just any tape. The quality is immediately noticeable – it's a premium polyethylene-backed tape with a strong, aggressive adhesive that bonds seamlessly to plastic sheeting. The 4-inch width effortlessly covers overlaps, for precise, mess-free application in tight spaces, creating waterproof joints that lock out moisture and air infiltration. Aesthetically, the white hue matched my plastic sheeting perfectly, creating seamless, professional-looking bonds that elevate the whole setup from DIY to polished. While it is too soon to speak about its durability, you can tell it's built to last a long time. This tape paired perfectly with the butyl tape from the same seller - two indispensable essentials that brought my DIY crawl space encapsulation project to a seamless finish.

This tape is great. I have bought 5 rolls of this tape and it sticks to plastic excellent. It cuts easy with a knife or razor blade. Great for crawl spaces and high ceilings in pole barns where plastic needs to be secured. Great value for the money. I purchased a roll of white tape from another vendor and it would not stick to the plastic lime this one does so I returned it.

The tape is easy to use and works great. It sticks to foil face rigid insulation and plastic poly sheet extremely well. The tape is also extremely strong and easy to apply. The price was also reasonable.

I used this tape to connect/seal the moisture barrier that I laid under my basement floor. The tape was easy to apply and was very sticky and secure. I like that it was very wide, so it was a bit forgiving on being straight. The tape is very durable and is also moisture proof, which is a requirement for a vapor/moisture barrier installation. The tape is easy to cut with a razor blade or pair of scissors.

It's pretty solid stuff. Would be nice if it had a slightly stronger adhesive, but I haven't found a tape where that was not the case. Overall, I would recommend it.

Works very well and it's best quality ( thick and sticky) is also why you will want to have a plan to apply it. We used a two person approach which minimized misplacement. We used it on a dimple barrier placed under a Stego moisture barrier, it stuck securely to both. Will be using this tape to complete a second crawl space.

This tape works great, has great adhesion and thickness for the money. It is a large roll, more than seems in the picture. The color is white as it should be.

The tape work excellent to tape the seams on the vapor barrier in my crawl space. It also stuck good to the ICF foundation forms in my crawl space.

Sticks great