How Is Flashig Attached Behind Siding

The vertical flange of the flashing is to extend up behind the adjoining siding.

How is flashig attached behind siding.

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. 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. Install the first length of z flashing. Pry the siding out near a nail then push the pry bar against the nail as you partially tap the siding back in.

The recommended width of step flashings will vary depending on the agency entity being referenced. For a wood window unit drip cap flashing can be installed over the trim piece often called brick molding that comes. 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. Slip the back flashing under the siding at least 3 at the top and the sides.

Start by making an outline on the siding where you want to position the ledger board. 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. This results in a 2 inch minimum head lap. The recommended length of step flashing is typically a minimum of 2 inches longer than the exposure of the roofing material.

Then slip flashing behind the siding covering the top edge of the ledger. Keep water out of your home and running down the roof where it belongs with appropriate use of step flashing. Make the outline large enough to include space for the deck boards on top the ledger and any trim boards on the sides. You may need to pry out siding first.

How to install step flashing under siding. That should pop the nail head out far enough so you can pry it out. If nails are in the way pull them out.