Flashing Plywood 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.

Flashing plywood siding. How to install plywood siding in this case t1 11. Humphrey russel woodbury ct. When the upper part of the. Z flashing fits between the two pieces of siding at the end joint.

You set flashing upon top edge of each piece of plywood over a fat bead of caulk and hold it in place with just heads of roofing nails driven into sheathing. 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. You set the flashing on the top edge of each piece of plywood on a fat bead of caulk and hold it in place with just the heads of roofing nails driven into the sheathing. A few tips and tricks to replace and install t1 11 plywood siding by yourself diy.

Adapted with permission from best practices guide to residential construction. The best option for windows is the type with a vinyl. How should i flash the windows and doors. T 111 is best installed over tar paper or housewrap stapled to studs.

Don t nail through the flashing itself or it will eventually leak. Galvanized steel z flashing is made from 28 gauge galvanized steel. John latorre a contractor in tolumne california replies. The large leg of the metal goes against the wall leaving the seat and face covering the top edge of the siding.

Slide the widest edge of a z flashing strip behind the upper siding panel. Where a butt joint is necessary use a scarf joint sloped down toward the building s exterior. I m installing t 111 plywood siding on an outbuilding with several windows and doors. It is used to protect the horizontal joints between sheets of siding from water infiltration.

Avoid horizontal butt joints in vertical siding. With plywood sidings use a z flashing at horizontal joints to shed water to the outside see figure 1 13 at above left. The z flashing resembles the letter z from the side and comes in strips about 10 feet long. If the siding was installed correctly you should see a piece of z metal flashing at the butt joint of the two pieces of siding.

The seat dimension 3 8 in corresponds to the siding thickness.