Imus Seal Butyl Joist Tape is the premium joist tape trusted by building professionals, homeowners, and DIYers to help extend the life of deck structures.
Diverts Water from Joists and Beams
Strong and flexible black facer allows for tear resistance while being able to form to fasteners and corners.
Seals Decking Screws
Pressure-sensitive butyl waterproof membrane, containing no asphalt or VOCs, self-seals around nail and fastener penetrations.
Provides a Barrier Between Metal and Wood
Corrosive chemicals like alkaline copper quaternary (ACQ) and copper azole (CA), commonly used in pressure-treated wood, can corrode steel joist hangers and other metal hardware. Installing Imus Seal Butyl Joist Tape between metal and wood creates a barrier to prevent contact.
Protects Treated and Non-Treated Lumber
Compatible with deck materials including pressure-treated wood and composite products.
Specifications
| Version: | Non-Skid | Original | ||
|---|---|---|---|---|
| Size: | 1-5/8” x 50’ Roll | 1-5/8” x 50’ Roll | 4” x 50’ Roll | 6” x 50’ Roll |
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| UPC: | 850014028046 | 850014028008 | 850014028015 | 850014028022 |
| Width: | 1 5/8 in. | 1 5/8 in. | 4 in. | 6 in. |
| Length: | 50 ft. | |||
| Thickness: | 0.02 in. | |||
| Weight: | 0.9 lbs. | 1.4 lbs. | 3.4 lbs. | 5.4 lbs. |
| Composition: | 12 mil butyl adhesive coated to a non-slip black facer with a tear resistant release liner | 20 mil butyl adhesive coated to a synthetic black facer with a tear resistant release liner | ||
| Installation Temperature: | 20° F to 150° F | 30° F to 120° F | ||
| Made in the U.S.A. 🇺🇸 | ||||
Installation
Apply Imus Seal Butyl Joist Tape to a clean, dry surface in three simple steps:
1. Peel
2. Stick
3. Cut to length
FAQs
Is Imus Seal Butyl Joist Tape compatible with my deck surface material?
Yes, Imus Seal Butyl Joist Tape works with naturally durable wood (e.g. redwood, cedar), pressure treated timber (e.g. southern yellow pine), exotic tropical hardwoods (e.g. ipe, teak, tigerwood), thermally modified wood, wood plastic composite (e.g. Trex, Monarch, TimberTech, Veranda), or plastic (e.g. polystyrene, PVC).
How is water kept from entering the joists where the deck fastening screws penetrate the tape?
The self-adhered butyl rubber flashing membrane seals around fasteners.
Can Imus Seal Butyl Joist Tape be used on more than just deck joists or beams?
Yes, Imus Seal Butyl Joist Tape can be used on ledger boards, stair stringers, posts, boat docks, and more.
Can I calculate how many lineal feet of Imus Seal Butyl Joist Tape my deck needs?
Yes, you can calculate your deck square footage and estimate how much Imus Seal Butyl Joist Tape it will need with the Deck Size and Protection Calculator.
Customer Reviews
While in the process of a routine touch up on our second story balconies the contractor discovered that all of our 4x10 beams that came out of our ceiling of our home were rotted to some degree . this scared us to death bc we didn’t want to redo everything so we got 2nd, 3rd and 4th opinions and the damage was superficial but did need a rebuild around the beams so i made sure we did whatever we could to help protect all the beams from future water damage. I researched all different types of tape as it’s sold on amazon and at the big box stores and got to understand the difference materials for the tape and the sticky part and Imus’ tape is polyurethane and the sticky stuff is butyl which is the highest quality and easiest to use AND since we went with high end Timber Tech Azek composite (pvc) floor boards it was important that the tape and the butyl would not damage the boards which it does not. so i am thrilled we went with Imus and didn’t go cheap. for a few bucks more you get easy to work with tape that doesn’t piss off the contractors and you’ll have peace if mind. and they had different widths which we bought one of which bc we had sisterboards. plus when i texted the company for tech support they responded immediately. love this tape.
Great product. Do yourself a favor, don't build a deck without Imus products.
The joist tape exceeded my expectations. It was easy to apply. It even stuck to damp wood. This tape really made the deck sound solid when walking on it. Will use this on all future deck projects.
I’m using this tape as I replace deteriorated deck boards on my 25-year old cedar deck. Prior to Imus Seal I’d used the silver window seal tape, but A. Because of its width, wasted a lot of tape on the 2 by joists , and B. The silver was visible and unattractive to see through the gaps in the deck boards. Imus Seal is exactly the right width and is basically invisible between the boards. It’s also very easy to apply.
Imus Seal
The project involved resurfacing a 2000 square foot deck adjacent to and surrounding a pool. The deck was over 30 years old and had been built in stages, none to code. After removing the cedar planking some joists and all of the posts needed replacing. One comcern was that the joist tops were compromised from removing nails and screws with the old decking. We knew joist tape was the answer and tried three vendors before deciding on Imus. Quite simply it stuck like bubble gum, the backing came off effortlessly, and the price and service were excellent. As a note, the cedar planking is being planed, stained, and reused as the fascia for the project. Pictures include two fox pups that were quite interested in our project. I'll add a picture or two when completed.
While researching DIY deck construction methods it became clear that adding a joist tape would prolong the life of the substructure. Imus Seal is an easy to use product that fits with the perfect amount of overlap on the joist.
Blog posts
Should pressure-treated wood deck structures be flashed to prevent rot?
Pressure treated wood continues to be a popular material for deck building in the United States, primarily due to its perceived cost and availability. A recent study of professional users of decking products (made up mostly of repair and...
How to prevent deck rot and extend the life of joists and beams.
Many homeowners are aware of deck rot and attempt to avoid the costly water damage to their deck by using composite decking or other wood alternatives. Unfortunately, the importance of protecting the deck structure, most notably the...
Creating Imus Seal Butyl Joist Tape, the ultimate deck flashing tape.
It is becoming increasingly common for contractors and DIYers to use a peel-and-stick flashing membrane to protect the top of joists and beams along with the ledger, posts, and stair stringers when framing a deck. Flashing tape products...