Imus Seal Butyl Joist Tape for Flashing Deck Joists and Beams (1-5/8” x 50’ Non-Skid)

My original intention for this was as a moisture barrier between my new exterior deck stairway stringers and the Trex deck boards I also used on my stairs, and I discovered another bonus in the process. On some of the other deck joists where I used a copper brown wood preservative on the cut surfaces, and where those surfaces directly contacted the underside of the Trex composite boards, the wood preservative leached up into the boards and significantly discolored them! Wherever I used this tape, that leaching and discoloration did not occur. Its a bit pricey, but not a bad idea to use on top of all joists and stringers!

This tape worked so well that I had to order more to complete our deck. It even got wet from rain before we put the deck boards down and it didnt move at all. Very sticky but works great. Would definitely recommend.

Well, this joist tape is sticky. It is black and it is thick. Easy to peal and apply. It is super sticky so it stays where it is put, and is hard to remove once it is set. I used this to cover the top edge of the 30 year old beams and joists when I replaced the decking boards on my deck. Will it work? Will it prevent rot? It seems like a good idea. I will never know. By the time that the deck boards are removed years from now I likely will not be here to find out. Others have noted that they found it hard to cut. I have some advise. Do not use a knife. Scissors work best. It took some practice but I found that I had to cut steady and slowly so as not to cause the tape to separate from the plastic backing. If you get any of the sticky goo on your scissors, you are done and need to clean the scissors before cutting again. I used a clean rag and some carb cleaner to refresh my scissors when they got gummed up.

The adhesive side of this acts more like caulk than duct tape. Very good adhesive after it sat in the sun for a few hours. My only problem was it would easily fall off the cardboard center tube if you werent careful.

This tape was exactly what I needed in resurfacing a deck. The taper here is extremely well and has a very good quality. My only minor criticism is that I put the tape on when it was above 80° and the tape was extremely gooey and soft and a little difficult to work.And in the cooler weather there were no problems whatsoever.

Worked well, cut product to size when using on my deck rails a couple weeks ago, will purchase more rolls once weather turns to spring and summer when replacing more deck boards. Seemed like it should work well

We put this on some joist before a storm and was a little afraid of that the wind would rip it off. But nope. It stayed right where we stuck it. We we not able to get the Azek on till a week later and it looks good as new. Recommended product.

Extremely tacky. When I removed the deteriorating wood boards on my deck the joists had not been taped. Decided to tape before installing the new Trex. Sticks and sticks well even on weather materials.

As expected, shipping wasn’t as fast as expected but the product arrived and works as intended. Great product !!!

Pretty much as advertised. Although it didnt stick that well when folded over the edge.