Roof Flashing Wood Siding

Failing to replace step flashings when a cedar shake roof is replaced with a composition shingle roof. Lay a shingle over the step flashing starting at the roof edge. Flush the end of the flashing length with the wall corner and secure the flashing to the framing with an 8d nail at each wall stud.

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Siding details at roof wall joint step flashings to avoid rot.

Roof flashing wood siding.

Stop wood sidings at least 1 inch short of the bottom leg at step flashings and other roof flashings. How to install step flashing under siding 1. Today the flashing is on top of the siding. The only way is to cut a groove in the siding and flash the roof wall intersection.

Begin at either end of the wall and set the level middle section of the z flashing onto the top edge of the siding panel with the wider flange upward and against the wall framing. Or pull the nails out of the closest layer of siding and slip the flashing up under it and hopefully under the moisture barrier. If the shingle already has flashing on it the kickout flashing has to slip beneath it and you ll have to loosen or remove siding to do this. Cut a piece.

Slice along the bend line about 4 inches into the first piece of flashing at the bottom of the roof with tin snips. It is always recommended to install step flashing behind stucco dryvit wood panel lap siding vinyl siding cedar shingle siding etc. Click to enlarge any image otherwise water will wick up into the flashing leading to paint failures and decay see figure 1 6 above left. Step flashings on a cedar shake roof are typically installed every 10 inches.

If the sidewall is stucco or solid wood like ours and you can t open it to get flashing behind it continue the step flashing to the peak of the roof then cover the step flashing with cap flashing photo 2. Traditionally the flashing was installed and hidden under the siding. Flashing is typically used to make the connection between the two. Imo and that is all it is.

It is at the back of the porch roof where the roof meets the house siding. That is fine but it must still look like the flashing is behind the siding. Fasten that shingle with two galvanized nails at the. Wood siding clearances wood trim and siding should always be installed with an air gap when installed at a roof ground or concrete contact area.

Install the first length of z flashing.