Roof Flashing Wood Siding

Installing step flashing to prevent roof leaks step flashing spans the joint between roof shingles and an adjacent side wall.

Roof flashing wood siding.

Remove wood shingles with care up one or two courses sufficient to install proper sidewall flashing and counter flashing. Flashing is typically used to make the connection between the two. 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. It s only on a roughly 15 stretch on a back addition to the house.

We had the roof installed 1 5 years ago and i asked the roofer to come back and fix the flashing as there was a 10 year workmanship warranty. 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. Use increased lap lengths for added protection. Do not rely on sealant as a substitute for proper lapping.

Stop wood sidings at least 1 inch short of the bottom leg at step flashings and other roof flashings. A better repair approach for the leaky dormer sides will as we ve discussed involve the following. Imo and that is all it is. Fasten that shingle with two galvanized nails at the top then cover the top of it with another piece of step flashing nailed to the.

It is always recommended to install step flashing behind stucco dryvit wood panel lap siding vinyl siding cedar shingle siding etc. Step flashings on a cedar shake roof are typically installed every 10 inches. The only way is to cut a groove in the siding and flash the roof wall intersection. Lay a shingle over the step flashing starting at the roof edge.

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. Water penetration at deck ledgers can cause wood dry rot and corrosion of connectors leading to deck collapse. Reinstall new wood shingles keeping the bottom of the shingle 1 2 above the roof surface below. 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.

Buyers of our house want us to fix the roof flashing. Roof and deck flashing recommendations for coastal areas always lap flashing and other moisture barriers properly. Here s how to install it correctly. Failing to replace step flashings when a cedar shake roof is replaced with a composition shingle roof.

It looks like it s pulling away a bit from the siding and would need some caulking. Epdm flashing tape with a butyl adhesive backing will help.