PRECISE CUTOUTS ARE SOMETIMES REQUIRED
for certain situations, such as fitting siding panels over vents or electrical outlet boxes. Careful layout is the key here.
1. Place the siding panel directly below where it will be installed. Mark where the sides of the box hit the panel.
2. Reposition the panel to one side of the box, clipping it into the panel just below the box. Mark where the top and bottom of the box hit the panel.
3. Outline the cutout where the horizontal and vertical lines intersect, then cut the opening with a sharp utility knife.
The panel is now ready to install.
side for expansion. These notched cuts can be made with a utility knife, a hacksaw, or tin — snips. Use a snap-lock punch to create crimps, I or tabs, lA in. down from the top edge of the I notched siding and make crimps every 6 in. across the length of the window. The crimps must face out to lock into the undersill trim.
The panels that fit over the tops of windows and doors are marked and notched in the same way as those on the bottom. The horizontal part of the siding slips down into the J-channel. To make cutouts where the siding fits over a dryer vent, an electrical outlet box, or another protrusion, use the techniques discussed above and on the facing page.
