Can You Install Step Flashing On Existing Roof

Failing to replace step flashings when a cedar shake roof is replaced with a composition shingle roof.

Can you install step flashing on existing roof.

Step flashing is needed whether a contractor installs new roofing or re roofs over existing shingles. However in most instances step flashing should be installed behind siding. Once even a small section of roofing cement fails you ll have a leak. Whether your drip flashing has been failing and allowing excess water into your home or your step or vent pipe flashing is corroding learning to install roof flashing on an existing roof is a great way to maintain the health of your current roof.

It is always recommended to install step flashing behind stucco dryvit wood panel lap siding vinyl siding cedar shingle siding etc. First step flashing must be installed before the siding so that the siding can cover the top of the flashing. Install flashing on existing roof to extend the lifespan of your roof. The first part of installing the step flashing is the installation of the corner flashing.

It may seem as if a single piece of flashing would offer more protection than many pieces of step flashing. Continuous flashing against a sidewall is one way to install a roof but it s not the correct way. Step flashing is not a hard process for you to complete. I have not been up on the roof yet to check by my guess is that the guy who flipped the house did a terrible job on flashing or didn t install it at all when he put a new roof on the.

I have a leak where my porch roof attaches to the side of the house. Second step flashing needs to extend 8 to 14 inches above the shingles according to the national roofing contractors association nrca. If playback doesn t begin shortly try restarting your device. But it doesn t work that way.

Each additional rain adds more water and before you know it you ve got rotted wood. I ve seen it drip twice both times in a storm when the wind is blowing hard normal rains there seems to be no drip coming through. On re roofs the sad case is that contractors do not always take the time to retrofit step flashing because it slows them down adds cost and additional carpentry work to repair or replace siding. If this is a repair job the siding must also be removed and replaced with the flashing.