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.

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. Snap a chalk line cut out the siding and tack up the ledger board. I made this video this morning and i hope it help explain the flashing wall detail where the siding meets the roof. Here s why the metal flashing is so important in your case.

Vinyl siding can be installed directly over wall sheathing wood siding or stucco. Nail j channel for vinyl or metal siding onto the flashing. In terms of materials you will need. 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. In certain instances flashing may need to be installed on the exterior of siding. Slip flashing under siding. For a wood window unit drip cap flashing can be installed over the trim piece often called brick molding that comes.

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. Next slide drip flashing behind the vinyl so the lip fits over the top of the ledger as shown at right. You ll need a zip tool to remove vinyl siding. The type and location of the flashings will vary depending on the type of windows and doors.

It is always recommended to install step flashing behind stucco dryvit wood panel lap siding vinyl siding cedar shingle siding etc. 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. You have to think about how roof shingles or feathers on a duck work to get a good understanding. 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.

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.