DeckWise Self Adhesive
WiseWrap® JoistTape™ by DeckWise® is a malleable polyethylene waterproof wood flashing and material, using a rubberized asphalt mastic adhesive. Each roll measures 3″ wide by 75′ feet long and specs out at 35-40 mil thick. Easily apply to decking joists, around deck support posts and over ledger boards.
When this tape is applied to the top of decking joists, over ledger boards, and around support posts, it creates a waterproof seal that helps stop decay and wood rot