Non-Skid Surface
Unique non-skid facer provides added grip when walking on the deck structure, helping create a safer installation in any weather.
Deck Joist Protection
Imus Seal Butyl Joist Tape
Self-adhering flashing tape for joists and beams designed to protect wooden deck structures from water damage and rot.
Want to prevent deck rot?
Protect your deck structure™ with Imus Seal® Butyl Joist Tape.
Premium Deck Protection
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.
Updated for 2026 with a refined butyl adhesive, Imus Seal Butyl Joist Tape provides the unique benefits of a Non-Skid surface, UV resistance, and a foundation for Level Decking™.
UV Resistance
Designed to withstand jobsite exposure when decking installation does not happen immediately.
Foundation for Level Decking™
Exclusive butyl formulation is applied consistently throughout the roll, helping create an even surface for a clean decking installation.
Protection Benefits
Designed to help protect deck framing where it matters most.
Imus Seal Butyl Joist Tape helps protect deck structures by shielding vulnerable framing surfaces from moisture exposure while creating a durable barrier between wood, fasteners, and metal hardware.
Diverts Water from Joists and Beams
Helps divert water away from horizontal framing surfaces where moisture and debris can collect, reducing prolonged exposure to the wood below.
Seals Decking Screws
Pressure-sensitive butyl adhesive helps self-seal around nail and fastener penetrations to help prevent water intrusion.
Provides a Barrier Between Metal and Wood
Helps separate steel joist hangers and metal hardware from treated lumber that may contain ACQ, copper azole, or other corrosive treatment chemicals.
Protects Treated and Non-Treated Lumber
Compatible with pressure-treated wood, non-treated lumber, and composite decking products where added framing protection is desired.
Specifications
| Version | Non-Skid | ||
|---|---|---|---|
| Size | 1-5/8" x 50' Roll | 4" x 50' Roll | 6" x 50' Roll |
 |  |  | |
| UPC | 850014028046 850014028077 (2 Rolls) 850014028084 (6 Rolls) | 850014028053 | 850014028060 |
| Width | 1-5/8 in. | 4 in. | 6 in. |
| Length | 50 ft. | ||
| Thickness | 0.02 in. | ||
| Weight | 0.9 lbs. | 1.9 lbs. | 2.7 lbs. |
| Composition | High-performance butyl adhesive, containing no asphalt or VOCs, coated to a tear-resistant, durable non-skid black facer. | ||
| Manufacturing | Made in the U.S.A. | ||
Installation
Apply Imus Seal Butyl Joist Tape to clean, dry framing surfaces before decking installation. Installation is simple: peel, stick, and cut to length.
Shop on AmazonFAQs
Is Imus Seal Butyl Joist Tape compatible with my decking material?
Yes. Imus Seal Butyl Joist Tape can be used with many deck surface materials, including naturally durable wood, pressure-treated lumber, exotic hardwoods, thermally modified wood, wood-plastic composite, PVC, and other plastic decking products.
How does it seal around decking screws?
The pressure-sensitive butyl adhesive helps self-seal around nail and fastener penetrations to help prevent water intrusion into the framing below.
Can it be used on more than joists and beams?
Yes. In addition to deck joists and beams, it can be used on ledger boards, stair stringers, posts, boat docks, blocking, and other framing areas where added moisture protection is desired.
Have there been different versions?
Yes. Imus Seal Butyl Joist Tape has evolved through multiple updates, including the original 2018 launch, the 2022 Non-Skid version, and the refined adhesive update for 2026.
Learn more in our related articles: original launch, Non-Skid version, and 2026 update.
Where is Imus Seal Butyl Joist Tape available?
Imus Seal Butyl Joist Tape is currently available through Amazon in the United States.