Flashing Under Vinyl Siding

In certain instances flashing may need to be installed on the exterior of siding.

Flashing under vinyl siding.

You have to think about how roof shingles or feathers on a duck work to get a good understanding. If the sidewall is stucco or solid wood like ours and you can t open it to get flashing behind it continue the step flashing to the peak of the roof then cover the step flashing with cap flashing photo 2. Once you have the top finished with the drip cap you are able to get the sides. Consult the manufacturer s instructions for the recommended technique for your windows.

Run the l shaped flashing up under the bottom row of siding so that it tucks under the final bottom row and on top of the wall and on top of the last row of bricks before you cap it with the cap. You can use self adhesive flashing strips along both sides and the bottom. Then lag screw the ledger to the house using the fastener pattern approved in your plan. A building inspector we talked to said that incorrectly installed ledgers are the main cause of problems in do it yourself decks because the ledger may pull loose from the house.

Here s why the metal flashing is so important in your case. In terms of materials you will need. Apply the sealant and let it dry for 24 to 48 hours. For a wood window unit drip cap flashing can be installed over the trim piece often called brick molding that comes with the window or door.

It is always recommended to install step flashing behind stucco dryvit wood panel lap siding vinyl siding cedar shingle siding etc. Install undersill trim along the edge of the vinyl over the flashing at the top and bottom. However in most instances step flashing should be installed behind siding. It is used to protect the horizontal joints between sheets of siding from water infiltration.

When the vinyl siding rests on top of these boards a piece of flashing is needed to create a leak proof conversion between the first piece of vinyl siding and the horizontal fascia board. Lengths of j channel flashing building paper corrosion resistant nails and enough vinyl siding to cover your home. Galvanized steel z flashing is made from 28 gauge galvanized steel. Flashing is a strip of metal usually aluminum about 8 inches long and bent at 90 degrees with each side at least 5 inches wide.

If you have vinyl or metal flanged windows for instance you can install drip cap flashing 4 the home depot over the window itself or over the top trim piece that you install. Step 4 install the adhesive. If the shingle already has flashing on it the kickout flashing has to slip beneath it and you ll have to loosen or remove siding to do this. The large leg of the metal goes against the wall leaving the seat and face covering the top edge of the siding.

Once you are finished you can re attach the siding and caulk the edges allowing that to dry for another 24 hours. The seat dimension 3 8 in corresponds to the siding thickness.