Lowes offers Trex Protect Joist 1.63" x 50ft Butyl Deck Tape for $15 (Reg $25). Free shipping on orders over $35. 

Product Description:
Trex Protect is a non skid self adhesive deck flashing tape that shields the tops of joists rim joists beams and the ledger board from moisture that can lead to rot and wood decay and the loosening of deck screws and fasteners Trex Protect works on horizontal and vertical surfaces and is applied as a cap vs wrapping which allows the wood to breathe Trex Protect joist bearer beam and rim tape tape have a non skid surface making it easier and safer to walk across during construction Cannot be used with Trex RainEscape deck drainage system

• 1-5/8 in x 50 ft roll can be trimmed to the desired length
• Impermeable butyl-rubber material offers an air-tight seal
• Self-adhering tape allows flush mounting
• Quick and easy installation by any homeowner or builder
• Also available in 3 1/8 in beam tape and 11 in rim tape
• Non-skid surface for safe installation
• Backed by a 25-year warranty