However in most instances step flashing should be installed behind siding.
How to install flashing on siding.
Cut the drip cap to the correct size for your window.
Measure the length of the porch roof joint to determine how much flashing you will need.
If you already have faulty flashing installed you.
Slip in the flashing.
Install the trim just under the drip cap.
In certain instances flashing may need to be installed on the exterior of siding.
Cut a piece.
Prepare the area where you will install the roof flashing.
Complete the installation of the first horizontal row of t1 11 siding following standard construction practices.
How to install step flashing under siding 1.
Failing to install step flashing behind siding.
Slice along the bend line about 4 inches into the first piece of flashing at the bottom of the roof with tin snips.
Nail it to the sidewall or glue it if nailing isn t possible.
At the top tuck metal drip cap flashing under the siding and on top of the second layer of wrap.
Step flashings are quite often improperly installed on the exterior of siding.
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.
Install the first length of z flashing.
How to install z flashing on t1 11 siding.
Lay a shingle over the step flashing starting at the roof edge.
Install the step flashing when the siding is installed it should be tucked behind this piece and then consecutive courses lapped over it.
Use an old rag to remove any dirt or debris that may be there.
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.
How to install porch roof flashing step 1.
Lift the bottom shingle and slip in the kickout flashing.
Apply a bead of caulk to the felt and set the window in the caulk.
Attach the flashing tape above the window and then slip the drip cap into the siding and attach to the tape.
Begin at either end of the wall and set the level middle.
Cover with cap flashing.
