- Q.We often encounter flat
roofs with decks over them. What roofing material makes
the most sense for this?
A.Most flat roofing systems can
be used under decks if the roof surface is properly
protected. With built-up or single-ply systems,
build the deck on sleepers, with an extra layer of
roofing where the sleepers rest. The deck should be
built in sections so it can be removed for
cleaning, and to get to the membrane for
repairs.
While I have not had personal experience with
it, one new product, Duradek, is made to be used as
both the deck and the roofing. It is made with a
type of PVC, and is available in several colors. A
brochure showing the colors and a listing of
distributors is available free from Ensurco
Duradek, P.O. Box F-195-37, Blaine, WA 98230;
604/591-5594.