How To Flash Vinyl Siding

Nail it to the sidewall or glue it if nailing isn t possible.

How to flash vinyl siding.

Slip in the flashing. If your house has a roof line that extends past a corner of two walls make the first piece of step flashing a corner. Then tack the ledger into place with 16d nails. 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.

Lift the bottom shingle and slip in the kickout flashing. To push water to the outside builder s felt and flashing membrane direct water past the nailing hem of the first full panel below the window. It is always recommended to install step flashing behind stucco dryvit wood panel lap siding vinyl siding cedar shingle siding etc. Behind the window casing undersill trim secures the cut vinyl panel under a window.

Using a pry bar you will need to remove a layer of siding from above the window you want to install the drip cap on. Install roofing felt before starting step flashing. When it comes to flashing siding corners many builders simply use a 1x wood corner. Run roofing felt up the wall about an inch higher than the wall side.

Nail j channel along both sides of the cutout. Expansion space all around. Attach the flashing tape above the window and then slip the drip cap into the siding and attach to the tape. In certain instances flashing may need to be installed on the exterior of siding.

Lengths of j channel flashing building paper corrosion resistant nails and enough vinyl siding to cover your home. Cover with cap flashing. And when those corners start to decay they become. Install undersill trim along the edge of the vinyl over the flashing at the top and bottom.

Next slide drip flashing behind the vinyl so the lip fits over the top of the ledger as shown at right. If the kick out and step flashing can t tuck behind the siding screw on cap flashing to cover it then caulk along the top. But unlike fiber cement siding wood is almost sure to rot. Cut the drip cap to the correct size for your window.

Use an old rag to remove any dirt or debris that may be there. However in most instances step flashing should be installed behind siding. Place the corner post in position allowing a 1 4 6 4mm gap between the top of the post and the eave or soffit.