We've all seen the details showing an
aluminum flashing along the top of
deck joists. It makes a lot of sense to
keep water off the deck framing, especially
where pressure-treated lumber is
not used. But when it comes to bending
a drip edge on a long strip of 24-
gauge aluminum, our enthusiasm
begins to wane. That's where Deck Seal
comes in. Deck Seal is an asphalt rubber
strip laminated to aluminum foil
with an adhesive backing. It's 45 mils
thick (about 1/16-inch), comes in 33-
foot-long rolls, and is available in 1 1/2-
, 3 1/2-, and 6-inch widths. Deck Seal
bends easily by hand and cuts readily
with a utility knife. The 6-inch