Keep water out of your home and running down the roof where it belongs with appropriate use of step flashing.
Flashing under cedar siding.
This has proven problematic over time as caulking the joint results in unsightly surface appearances due to the different textures as well as resulted.
Flashing intercepts and directs the flow of water away from the building to designed drainage paths.
The top of the step flashing is still under the siding or plaster.
If the kick out and step flashing can t tuck behind the siding screw on cap flashing to cover it then caulk along the top.
A common problem with cement board siding products and some other types of horizontal lap siding is that older installation guidelines called for caulking the joint instead of flashing the joint.
We only caulk butt joints on cedar siding if previously caulked.
Step flashing is used where a roof meets a.
Flashing should be made from a non corrosive material and should extend a minimum of 2 vertically up the wall.
Fiber cement boards are caulked only when there is no metal flashing behind them.
Add felt if needed before nailing the new wood on and prime the new wood on all.
You do have to trim the top starter course shingle with a triangle shaped cut to allow this.
Failing to replace step flashings when a cedar shake roof is replaced with a composition shingle roof.
Building siding flashing finish details for building corners use overlapping 1x4s or 1x6s at outside corners or use 5 4 stock for a heavier look.
Cedar shingle siding must never rest on the horizontal surface of flashing.
Flashing is an important line of defense in controlling moisture in wall assemblies.
Step flashings on a cedar shake roof are typically installed every 10 inches.
Otherwise it is possible for water to wick up the shingles and into the wall.
Before installing siding make sure that flashings are installed to prevent moisture from entering wall and roof spaces.
Flashing must be overlapped by the moisture barrier.
Inspect the sidewall around and underneath the fascia and inside the house for signs of moisture damage and repair any rotted areas.
Use a felt paper spline wrapped around the corner and extending 6 inches beyond the corner board to protect the joints where the siding meets the corner boards see figure 1 5 at left.
How to install step flashing under siding.
It is always recommended to install step flashing behind stucco dryvit wood panel lap siding vinyl siding cedar shingle siding etc.
