How To Install Flashing Under Existing Siding

Begin by removing the shingles at the affected area and removing old flashing if present.

How to install flashing under existing siding.

Apply a bead of caulk to the felt and set the window in the caulk. At the top tuck metal drip cap flashing under the siding and on top of the second layer of wrap. Attach the flashing tape above the window and then slip the drip cap into the siding and attach to the tape. Next comes another layer of building wrap installed like the first layer.

Nail it to the sidewall or glue it if nailing isn t possible. Use roofing nails to install the l shaped flashing flush with the roof and wall then cover it with roofing cement and reattach the roofer s felt. Cut the drip cap to the correct size for your window. Bent into an l shape.

Slip in the flashing. Slice along the bend line about 4 inches into the first piece of flashing at the bottom of the roof with tin snips. 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. How to install step flashing under siding 1.

Cut a piece. About 6 12 months later the butt joints looked awful. Then nail the new l shaped flashing under the builder s felt but above the fascia board. Lift the bottom shingle and slip in the kickout flashing.

Cover with cap flashing. Posted march 4 2017 filed under roof installation roof repair maintenance. 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. Galvanized sheet metal bent at a 90 degree angle i e.

It was painted by a contractor who caulked the joints before painting. Step flashing is used to provide a water tight connection where roofing adjoins a vertical juncture. Position the flashing lengths as defined in step 2 overlapping the ends a minimum of 2 inches onto the previous flashing piece and securing the flashing with 8d nails at each wall stud. About installing flashing on already installed siding.

Fasten that shingle with two galvanized nails at the. My neighbor s house has hardie plank siding. Continue installing the z flashing at the top edge of the siding panels across the full length of wall. This flashing is typically field fabricated from a sheet of 26 ga.

Lay a shingle over the step flashing starting at the roof edge. Use an old rag to remove any dirt or debris that may be there.