Deck flashing is meant to go around the edge of the deck and allow water to drain off your deck and keep it away from the outside fascia boards. When installing the deck flashing it should be recessed into the plywood so as not to trap water behind the flashing. If done properly the deck flashing should be a smooth transition and not be noticeable to the eye.The flashing should be fastened with staples or ring shanked nails every three to four inches, and checked with a straight edge very carefully.
This is a typical problem that is associated with vinyl deckings that are “fuzzy backed“. The vinyl covering is glued down the front face of the deck flashing and then attached with a PVC clip. Over time the PVC clip expands and falls of the flashing enabiling the vinyl to curl up off the deck flashing. Not only is this unattractive it can also cause your deck to rot and lead to costly repairs. Unfotunatley the only permanent solution is to replace the whole deck with a “vinyl backed” deck covering.
This is the leading Edge in vinyl deck flashing, our galvinized metal dek edge flashing is specially coated in a “PVC” coating. With this being done we can thermally weld our vinyl decking directly to the deck edge flashing making a pernament bond between the two materials creating a waterproof deck.