It is always recommended to install step flashing behind stucco dryvit wood panel lap siding vinyl siding cedar shingle siding etc.
Flashing shingles to siding.
In certain instances flashing may need to be installed on the exterior of siding.
They extend the course 3 8 1 2 inch past the starter course then nail in place then install step flashing then the next course and so on up the roof.
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.
Vertical edges need to be bent at 45 degrees angles in order to create kick out.
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.
Here silva and the apprentices are installing architectural shingles.
Improper installation of flashing where roofing shingles meet vinyl siding.
Improper installation of flashing where roofing shingles meet vinyl siding.
Second step flashing needs to extend 8 to 14 inches above the shingles according to the national roofing contractors association nrca.
If this is a repair job the siding must also be removed and replaced with the flashing.
On a wall to be covered with wood cement board vinyl or metal siding the step flashing and associated roofing must be installed first so the siding can cover the top of the step flashing on.
Take the first flashing piece at roof bottom and slice it at around 4 inches with tin snips.
Flashing serves a single.
Install the first course of shingles.
The remaining siding on the sidewall will overlap the step flashing and nail.
How to install step flashing.
Roof side flashing should be folded down over facing boards along roof lines.
First step flashing must be installed before the siding so that the siding can cover the top of the flashing.
Cement or roof caulk.
