Every number here is a working estimate to check with your building authority. Whoever prints this page takes responsibility for what is in it.
Lessons / Water and durability
Spot it
Dry space under the deck
Show a hint
A drainage membrane nobody can reach, holding water against the frame.
Every number here is a working estimate. Check it with your building authority.Turn JavaScript on to work the lesson. The drawing shows how it starts.
The rule this lesson teaches
An under deck drainage system gives dry space below and has to stay reachable for cleaning.