How to install t1-11 plywood siding

Rather, they only show it installed vertically. You can put Tyvek over the the existing T siding and then add your HardiePlank over that.

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Contents 1 Do you need plywood under T siding? At the position where you want the bottom edge of the sheet to be, insert a screw slightly into the corner stud, then place the corner of the sheet on the screw. Step 4- Keep the sheet against the wall when plumbing it. Fix a 4-foot level along one vertical edge, and re-arrange the sheet to the plumb position. Going to the opposite side of the board, test the plumb and, if necessary, make adjustments, then partially push a nail or screw into that side to secure it to the stud.

Step 5-Secure the sheet by pushing fasteners across the opposite side of the one, spacing them 8 inches apart. Drive the fasteners in the studs behind the center of the sheet and along the top and bottom edges, keeping a inch spacing.

Extract the partially powered fasteners with the shiplap below from the bottom. Since the first sheet is plumb, as long as the joints are correctly aligned, all subsequent sheets should be level too.

Step 7- Drive fasteners into the joint on the shiplap. Both sheets should be intersecting and sinking into the stud behind the joint. Secure the sheet how you secured the first one, leaving the opposite edge unfastened until the next sheet is fitted. Step 8-Measure the last sheet in the line that matches between the second-last sheet and the wall corner and cut it with a circular saw.

The corner trim will hide it. Step 9-Hang Z-flashing over the top of the row before adding another row over it and nail it to the studs. The flashing covers the sheet top edges, which are the most vulnerable to exposure to water. Step Trim T with lumber 1- per 3- or 4-inch.

Trim the nail to the corners of the house and with 8d galvanized finish nails around windows and doors. Cutting the tops to the walls, where the wall reaches the soffit, and the bottoms where it hits the base is often standard practice. Paint or stain T prolongs its lifespan and improves its appearance.

Trim T with 1- by 3- or 4-inch lumber. Nail the trim to the corners of the house and around windows and doors with 8d galvanized finish nails. It is also common practice to trim the tops to the sheets, where the wall meets the soffit, and the bottoms, where it meets the foundation. Paint or stain T after installing it to lengthen its lifetime and enhance its appearance.

If you paint it, giving it a coat of exterior primer adds protection and increases paint adhesion and coverage. T should never be installed in contact with the ground. Ground contact introduces moisture that causes the plywood to separate and promotes mold.

Chris Deziel has a bachelor's degree in physics and a master's degree in humanities. Besides having an abiding interest in popular science, Deziel has been active in the building and home design trades since As a landscape builder, he helped establish two gardening companies. By Chris Deziel Updated December 27, Related Articles. Tip Paint or stain T after installing it to lengthen its lifetime and enhance its appearance.

Prime all four edges of each sheet before you hang it as a safeguard against moisture damage.