POLYGUARD Poly Wall - Rot Shield Joist Tape for Decking, 4" x 100'. Made in The USA. Self Adhering, Self Sealing Deck Joist Tape for Wood Decks
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- Ultimate Defense Against Rot: Shields joists from water damage, preventing rot and decay for a longer deck lifespan
- Superior, Long-Lasting Protection: Durable rubberized asphalt and polyethylene film create a robust, waterproof seal
- Enhanced Adhesion & Flexibility: Engineered for a strong bond and adapts to irregular surfaces for complete coverage
- Easy, All-Weather Installation: Self-adhering application with a split release liner, even in cold temperatures; no priming needed
- Maintains Structural Integrity: Protects against moisture buildup and seals around fasteners, preventing water intrusion
- Resists UV Degradation: Maintains protective properties under direct sunlight for up to 120 days. If your project is delayed, Polyguard Poly Wall Rot Shield will continue to protect
- Aesthetically Discreet & Clearly Labeled: Dark brown color blends seamlessly; labeled for correct placement
- Engineered for Optimal Joist Health: Specifically formulated to address the critical needs of deck construction
- High tensile strength: resists tearing during installation and after installation from wood movement
- Superior puncture resistance: protects the joist even with the occasional sharp edge of a deck board
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Select a product to estimate shipping.Protect your deck with Rot Shield Joist Tape. This rubberized asphalt tape prevents moisture buildup on joists, reducing rot & decay. With easy application using the split release liner, it fits all jobs & can be used in cold temperatures. UV stable for up to 120 days, ensuring a reliable barrier.
Polyguard Rot Shield
Building a deck that’ll last? You’ve gotta start with the right details and Polyguard ROT SHIELD is one of them. This peel-and-stick barrier protects your framing from moisture, mold, and corrosion, seals around fasteners, and installs fast, even in cold weather.
What is Rot Shield Joist Tape used for?
Rot Shield Joist Tape is used to protect deck joists from moisture damage by creating a barrier between the structural deck joists and deck boards. It prevents rot, decay, and corrosion by sealing out water.
Can Rot Shield Joist Tape be applied in cold temperatures?
Yes, Rot Shield Joist Tape can be applied in cold temperatures, making it versatile for various weather conditions.
Is priming required before application?
No, Rot Shield Joist Tape does not require priming. It is a single-step process, making installation quick and straightforward.
What is the purpose of the split release liner?
The split release liner facilitates easy application by allowing the tape to be peeled off smoothly and applied without mess or difficulty.
What makes Rot Shield Joist Tape aesthetically pleasing?
The tape features a dark brown color that camouflages beneath decking, maintaining a clean look. Additionally, the facer text doubles as a guideline for proper installation.
Rot Shield Specs
Product details







| Main Specification | |
|---|---|
| Manufacturer | POLYGUARD |
| Unit Count | 100 Feet |
| Surface Recommendation | Wood |
| Tensile Strength | 549 psi |
| Compatible Material | Wood |
| Brand | POLYGUARD |
| UPC | 850036050643 |
| Number of Items | 1 |
| Water Resistance Level | Waterproof |
| Colour | brown |
| Product information | |
| Number of Packs | 1 |
| Technical Details | |
| Part Number | PW.RS.JT.04.100 |
| Model | PW.RS.JT.04.100 |
| Material Type | Polyethylene |
| Item Resistance | High |
| Adhesive Format | INTEGRATED |
| Adhesive Side Count | 1 |
| Adhesive Location | tape |
| Others | |
| Product Type | Masking Tape |
| Item Dimensions L x W x Thickness | 1200"L x 4"W x 0.02"Th |
| Other Special Features of the Product | Waterproof |
| Size Name | 4" x 100' |
| Adhesive Material | Rubberized Asphalt |









