siding installation example 00818.tif i
HORIZONTAL SIDING INSTALLATION
Installing Panels
• The first course (row of panels) should be placed in the ;
starter strip and securely locked along the entire length
of the siding panel. Make sure the panel is securely
locked before fastening. m �I ( - '
• Fasten the panels in the center of the nailing slots (see
pages 14 and 15 for specific information on fastening
and fasteners). Allowance should be made for expansion
and contraction by leaving a 1/4" (6.4mm) gap between
the siding and all corner posts and channels. Increase to
3/8" (9.5mm) when installing in temperatures below 40° F
(4.4° C). If the panels are 20 feet (6.1 meters) or longer, `
refer to the manufacturer's instructions for how to increase Figure 36.
the gap.
• Do not drive the head of the fastener tightly against the nail slot. Overlap away from areas of
Leave approximately 1/32" (0.8mm) between the fastener head and high traffic (e.g., doors)
the vinyl (about the thickness of a dime).
• Do not force the panels up or down when fastening. Panel locks
should be fully engaged; however, the panels should not be un-
der vertical tension or compression when they are fastened.
• Since vinyl siding moves as the temperature changes, make cer-
tain that the vinyl panels can move freely in a side -to -side direc-
tion once fastened.
• Check every fifth or sixth course for horizontal alignment (Fig. 36).
Also check siding alignment with adjoining walls.
• When panels overlap, make sure they overlap by one half the Figure 37. j
length of the notch at the end of the panel, or approximately 1"
(25.4mm) (Fig. 37).
• When lapping horizontal foam backed siding, slide panels to- Foam backer touching
gether until the backing forms a continuous coverage (Fig. 38). o 0 0 0 o
Do not leave a gap between the backing of each panel. I Overlap
t I to here
• Stagger the siding end laps so that no two courses (rows of I '
I I
panels) are aligned vertically, unless separated by at least
three courses.
• Always overlap joints away from entrances and /or away from the
point of greatest traffic. This will improve the overall appearance Figure 38.
of the installation (Fig. 37).
• Avoid using panels shorter than 24" (610mm).
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