Flashing Deck To Siding

The irc doesn t provide prescriptive measures for flashing other than the minimum thickness for metal flashing 0 019 in.

Flashing deck to siding.

Amerimax 14 in x 30 ft vinyl roll flashing. Pry the siding out near a nail then push the pry bar against the nail as you partially tap the siding back in. Keep in mind the bottom of the upper siding should be at least two inches above the flashing or the decking that s near the house. Install z flashing behind the bottom of the ledger and over the siding below.

For pricing and availability. This flashing needs to extend up at least 2 or 3 inches up under the siding above the deck. Tearing into siding is all but inevitable if you build. Make the outline large enough to include space for the deck boards on top the ledger and any trim boards on the sides.

Then slip flashing behind the siding covering the top edge of the ledger. That should pop the nail head out far enough so you can pry it out. My instinct is to replace the deck and eliminate the ledger altogether add posts near the wall and leave a big gap between the end board and new flashing tucked under the siding. Union corrugating 14 in x 30 ft vinyl roll flashing.

Item 3807 model 5504900120. Slip the back flashing under the siding at least 3 at the top and the sides. A simple metal or plastic cap flashing is probably adequate to flash a deck ledger in a dry climate while the 3 layer system described in this video is suitable for high rainfall and damp climates. I would remove the old siding that was behind the existing ledger to about an inch above the deck surface.

This keeps water from wicking along the bottom of the ledger and getting behind the siding. To prevent water from seeping behind the deck s ledger board and rotting the board and the siding the flashing must cover the top of the ledger board and bend over the edge. Gap between the end of the ledger and the ends of siding and fill it with high quality exterior caulk to keep water from leaking behind the ends of the ledger. Flashing consists of metal which is durable enough to be exposed to sunlight and mechanical wear and tear plus peel and stick membrane like vycor grace construction products.

You may need to pry out siding first.