Flashing Under Vinyl Siding

Lengths of j channel flashing building paper corrosion resistant nails and enough vinyl siding to cover your home.

Flashing under vinyl siding.

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. Galvanized steel z flashing is made from 28 gauge galvanized steel. 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.

Then lag screw the ledger to the house using the fastener pattern approved in your plan. It is always recommended to install step flashing behind stucco dryvit wood panel lap siding vinyl siding cedar shingle siding etc. Before you attach them you will want to make sure the area is completely clean and dry so they stick as well as possible. In terms of materials you will need.

You have to think about how roof shingles or feathers on a duck work to get a good understanding. Apply the sealant and let it dry for 24 to 48 hours. The seat dimension 3 8 in corresponds to the siding thickness. 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.

You can use self adhesive flashing strips along both sides and the bottom. 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. Here s why the metal flashing is so important in your case.

Install undersill trim along the edge of the vinyl over the flashing at the top and bottom. 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. The large leg of the metal goes against the wall leaving the seat and face covering the top edge of the siding. 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.

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. Consult the manufacturer s instructions for the recommended technique for your windows. In certain instances flashing may need to be installed on the exterior of siding. On a wall to be covered with wood cement board vinyl or metal.

However in most instances step flashing should be installed behind siding. You will also need vinyl corners and trim for windows and doors as well as a termination trim for where you meet other surfaces such as soffits and masonry work.