9 Best Of How To Install Roof Flashing Against Siding HD Image Size. You may want to contact the roof manufacturer. How do you install flashing under existing siding.
The flashing needs to be installed before installing the roof shingles The metal flashing is formed with a hook edge and cleated on 12. I am not sure what type of metal roof panel you have thus I cannot make a recommendation regarding the cut edge. Add a new piece of flashing to replace the old flashing you took out behind the siding.
Centers The flashing extends up the wall at least 4.
Oct 04 2017 yes the flashing should have been installed under the 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 isnt possible. Slice along the bend line about 4 inches into the first piece of flashing at the bottom of the roof with tin snips.