Replace Flashing Under Siding

Keep water out of your home and running down the roof where it belongs with appropriate use of step flashing.

Replace flashing under siding. This flashing is typically field fabricated from a sheet of 26 ga. Bent into an l shape. 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. Inspect the sidewall around and underneath the fascia and inside the house for signs of moisture damage and repair any rotted areas.

Step flashing is used where a roof meets a. Posted march 4 2017 filed under roof installation roof repair maintenance. Galvanized sheet metal bent at a 90 degree angle i e. Install the first length of z flashing.

Tack z flashing over the channel extending it slightly past the cutout on both sides. 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. Test the rotted area of the t1 11 siding by poking it with a nail or a screwdriver. If only the surface is damaged but the siding beneath is still solid you can install flashing.

And seal with silicone caulk. This has proven problematic over time as caulking the joint results in unsightly surface appearances due to the different textures as well as resulted. In addition it is best to cover all of the exposed flashing not just the. Step flashing is used to provide a water tight connection where roofing adjoins a vertical juncture.

If necessary remove a few pieces of siding nail the undersill then replace the 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 other words you will have to rip off the bottom rows of siding to install the flashing then replace the siding. I made this video this morning and i hope it help explain the flashing wall detail where the siding meets the roof.