Joist Protection & Joist Tapes
Breathable Joist Tape is a relatively new product in the decking scene but any decking contractor serious about building a long lasting deck uses it. It has become so popular that you would be considered unusual and a below par installer if you don't use it.
Another benefit is you no longer have to paint the of your joists black for protection and the pleasing visual result in making the subframe much less noticeable to a deck user.
It protects your deck joists and framing for decades, preventing water damage and rot from stealing years away from the longevity of the deck. The 50mm width is the most popular size being used on 45mm joists, with a 2.5mm overlap on the edges. 100mm width is for use on bearers and wider parts of the subframe.