How To Install Flashing Under Siding

The water then runs off the flashing because it can t go up the flashing as it extends up behind the siding.

How to install flashing under siding. Lift the bottom shingle and slip in the kickout flashing. Next comes another layer of building wrap installed like the first layer. Slice along the bend line about 4 inches into the first piece of flashing at the bottom of the roof with tin snips. Install the first length of z flashing.

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. At the top tuck metal drip cap flashing under the siding and on top of the second layer of wrap. Install the trim just under the drip cap. 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.

Install the flashing before you install the siding during the brick wall installation for ease of use. Apply a bead of caulk to the felt and set the window in the caulk. Click to enlarge make sure the sheathing wrap overlaps all step flashings. Bent into an l shape.

Where snow buildup is likely add a wide band of peel and stick membrane lapped over the step flashing but under the sheathing wrap. Make the outline large enough to include space for the deck boards on top the ledger and any trim boards on the sides. Start by making an outline on the siding where you want to position the ledger board. Snap a chalk line cut out the siding and tack up the ledger board.

Posted march 4 2017 filed under roof installation roof repair maintenance. Otherwise you can just pry up the siding to tuck the flashing underneath. The water runs down the siding and at the bottom of the first row of vinyl siding it drips off and contacts the metal flashing as it runs across the top of the fascia board. Galvanized sheet metal bent at a 90 degree angle i e.

How to install step flashing under siding 1. Step flashing is used to provide a water tight connection where roofing adjoins a vertical juncture. Cover with cap flashing. Fasten that shingle with two galvanized nails at the.

Slip in the flashing. Lay a shingle over the step flashing starting at the roof edge. 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. Nail it to the sidewall or glue it if nailing isn t possible.

Cut a piece. Where a slope roof meets a sidewall slip the upper legs of the step flashing under the sheathing wrap see illustration.