The corner trim pieces, which receive the ends of the vinyl siding panels, must be installed straight and plumb or they won’t look attractive. Hold a short, cutoff piece of vinyl corner post against the sheathed corner of the house
and mark the edge of the flange on both sides of the corner at the top and bottom of the wall. Snap a chalkline between the marks. Set a corner post Z in. to И in. down from the soffit, and drive a l^-in.-long nail at the top of a slot on both sides of the corner. The corner post hangs from these nails, allowing the vinyl to move. Hold the posts directly on the chalklines and drive nails about every 12 in. in both flanges, down to the bottom of the wall. Keep each nail in the center of its slot. The corner posts should extend Zi in. to 1 in. below the starter strip.
Most doors and windows have factory — made siding channels. If yours do not, install J-channel along the top and sides of the window to hide the ends of the siding. You can use a miter or a square cut at the top corners. Either way, at the ends of the top piece, leave 1-in.-long drain tabs that can be folded down over the window sides. This helps channel water down around the window (see the photo at left).
TRIM AROUND A DOOR. J-channel trim is nailed around the window and door frames, with a tab in the top piece bent to fit around the corner.
Some volunteers prefer contrast between the white corner trim and the brown siding, while others aren’t sure whether it looks attractive. . .
We install siding panels from the bottom up. . .
Each new course of panels snaps onto the one below You can’t drive the nails hard against the vinyl bea it needs to move. . .
