Start by making an outline on the siding where you want to position the ledger board.
Flashing under siding.
Snap a chalk line cut out the siding and tack up the ledger board.
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.
Slice along the bend line about 4 inches into the first piece of flashing at the bottom of the roof with tin snips.
Cut a piece.
Otherwise dripping water will leave its mark along the siding.
It is used to protect the horizontal joints between sheets of siding from water infiltration.
In areas where snow may build up add a wide band of peel and stick membrane over the step flashing but under the sheathing wrap as shown.
The large leg of the metal goes against the wall leaving the seat and face covering the top edge of the siding.
This results in a 2 inch minimum head lap.
Therefore the upper piece of wrap or flashing should always overlap any lower pieces.
The recommended length of step flashing is typically a minimum of 2 inches longer than the exposure of the roofing material.
The best solution is a preformed or custom bent kick out flashing to divert the water away from the siding.
Galvanized steel z flashing is made from 28 gauge galvanized steel.
The seat dimension 3 8 in corresponds to the siding thickness.
How to flash siding butt joints after the siding is installed 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.
Inside corner w flashing.
Install the first length of z flashing.
The vertical flange of the flashing is to extend up behind the adjoining siding.
Lay a shingle over the step flashing starting at the roof edge.
Flashing helps prevent any moisture which can collect due to condensation or small gaps in the siding that flows downward from infiltrating behind the house wrap where it can do damage.
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.
Many times builders fail to use proper flashing at the top of windows.
Fasten that shingle with two galvanized nails at the.
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.
Here are four ways to use metal flashing to prolong the life of siding.
When it comes to flashing siding corners many builders simply use a 1x wood corner.
Where the step flashing terminates along a sidewall is a common trouble spot for moisture problems.
Slip flashing under siding.
