Replace Flashing Under Siding
Step flashing is used where a roof meets a.
Replace flashing under siding. Tack z flashing over the channel extending it slightly past the cutout on both sides. Bent into an l shape. 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. How to install step flashing under siding.
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. In addition it is best to cover all of the exposed flashing not just the. If only the surface is damaged but the siding beneath is still solid you can install flashing. Galvanized sheet metal bent at a 90 degree angle i e.
Inspect the sidewall around and underneath the fascia and inside the house for signs of moisture damage and repair any rotted areas. And seal with silicone caulk. This flashing is typically field fabricated from a sheet of 26 ga. I made this video this morning and i hope it help explain the flashing wall detail where the siding meets the roof.
If necessary remove a few pieces of siding nail the undersill then replace the siding. Test the rotted area of the t1 11 siding by poking it with a nail or a screwdriver. Keep water out of your home and running down the roof where it belongs with appropriate use of step flashing. 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 you need two or more pieces of flashing overlap the joints by 4 in. 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. In other words you will have to rip off the bottom rows of siding to install the flashing then replace the siding. Posted march 4 2017 filed under roof installation roof repair maintenance.