Why use Drain-Plane rather than ripped (treated or marine) plywood strips?
Drain-Plane is easy to install, has a consistent dimension, and requires no special fasteners. Its unique design provides ventilation bi-directionally across the plain of the cavity as well as vertically within the strip. A wood furring strip provides vertical but not horizontal ventilation across the plain. Wood can hold moisture which reduces the drying potential of the system. In addition, treated or marine furring strips used for longevity will require the use of stainless steel nails for proper application. These are an added expense.
