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WiseWrap Butyl JoistTape 1-5/8""
Polypropylene with butyl hybrid adhesive
Available Options
Choose your preferred options and quantity below.
1-5/8"" x 50""
WW-JIB-158
$24.95
per unit
About this product
DeckWise WiseWrap Butyl JoistTape is a self-adhering protective membrane designed to shield deck framing from moisture-induced rot and decay. By sealing the tops of joists and ledger boards, it creates a waterproof barrier that prevents water from trapping between dense tropical hardwood decking and the wooden substructure. This product is essential for ensuring the framing lasts as long as the premium hardwood surface.
Manufacturer Specifications
- Material
- Polypropylene film with butyl hybrid adhesive
- Roll Dimensions
- 1-5/8 inches x 50 feet
- Thickness
- 20-22 mil
- Application Temperature
- 20°F to 170°F
- Service Temperature
- -70°F to 200°F
- VOC Content
- VOC Free
- Color
- Black
Best used for
- 1Protecting pressure-treated joists under Ipe rooftop decks where low clearance limits airflow and traps moisture.
- 2Waterproofing the substructure of Cumaru docks and marinas to prevent rot from constant water exposure and splashing.
- 3Sealing ledger boards and rim joists on Garapa residential decks to prevent moisture intrusion at the house connection.
- 4Lining furring strips for Massaranduba or Tigerwood rainscreen siding to protect the building envelope from water damage.
Pro tips for dense hardwoods
- Always pre-drill tropical hardwood boards before fastening; the heat from the screw creates a tighter seal as the butyl adhesive flows around the fastener shank.
- Use a small hand roller to apply firm pressure across the entire surface to eliminate air pockets and ensure a 100% waterproof bond.
- For double joists, apply two parallel rows of tape and ensure a minimum overlap of 1/2 inch to 3/4 inch to maintain a continuous moisture barrier.
- Ensure joist surfaces are clean and free of debris; if the lumber is extremely wet, use staples to temporarily secure the tape ends during installation.
Specifications
- Brand
- DeckWise
- Category
- Joist & Ledger Tapes
Joist & Ledger Tapes — Common Questions
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