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Preparing Wall Surfaces
For the most part, the wall preparation instructions given for
horizontal siding also apply to vertical siding. The key
requirement, of course, is that you start with a smooth, level
and rigid substrate (plywood, wood composite, rigid foam or
fiber sheathing).
NOTE: Never install vinyl siding over open furring strips or
studs. Always check with your local building code official.
With vertical siding, however, you may have to complete an
extra step to provide solid nailing points along the vertical
edge of the siding panel. The need for this added step
depends on the type of substrate used and the nature of the
construction project.
With new construction or remodeling using plywood or wood
composite, there are no additional steps. You can nail into
plywood and wood composite substrates at any point as long
as you do not exceed 16" on center.
In new construction, using rigid foam or fiber sheathing, you
must install solid wood nailer strips horizontally to studs
before applying sheathing. Use 1 x 3 wood furring positioned
12" - 16" on center. In high wind regions, including Texas,
space the furring strips 12" on center. Check your local
building codes.
When remodeling over existing wood siding, you must apply
rigid foam or fiber sheathing, shimming if necessary to create
a level surface.
When remodeling over brick, block, stucco or irregular wall
surfaces, apply furring strips horizontally to create a level
surface, then apply rigid foam or fiber sheathing. See “Tips for
applying wood furring” on page 22 and “Applying over
stucco” on page 23. When reviewing illustrations for those
sections, remember that furring strips must be applied
horizontally with vertical siding. See page 24 for nailing
instructions.
NOTE: When using Beaded T2" panel in a vertical
application, nailing MUST be 8" to 12" o.c.
Marking a base line
The procedure is virtually the same as that described earlier.
However, instead of snapping a chalk line 2-1/4" above the
low point, snap it 1" above the low point.
NOTE: Washers can be used for increased performance in
high wind areas. See page 23 for horizontal illustration.
65
SECTION 6 – Installing Vertical Siding
upper edge of topmost
nailing slot
ring-shanked nails
and washers for
attaching foam
1 x 3 furring
1/2" foam sheathing
always position
topmost nail in
topmost full nail
slot with vertical
applications
even with washers,
center nail in slots
12"-16"
12"-16"
Wolverine Fit and Finish Installation Guide