I want to take the below chimney down as it is leaking and deteriorating. It is no longer connected to anything. Obviously when I remove it there will be a fairly large hole in my roof. I assume I place a correctly sized piece of plywood in the hole, but I would appreciate any other details. Do I put tar over the edges of the plywood? Do I just cover it with tar paper and shingle over that? Please fill me in with some details so this roof does not leak. Thank you in advance.
Going to have to remove all the shingles around it so the flashing can be removed.
Add some 2 X 4 nailers if there's no place to nail the plywood down.
Add the plywood and tar paper making sure it slides in under the top piece.
Then weave in the new shingles. That style shingle is the easiest type to work with.
I use a cheap pair of tin snips to cut the shingles to length. Easier then a utility knife because there so thick. http://www.amazon.com/TEKTON-3655-8-...ords=tin+snips
Going to also need a flat bar to pop out a few nails in the shingles in the top row in order
to be able to slide the new ones in place.