Wall
Construction
 |
Like all siding
materials, Western Red Cedar performs best
when installed properly on a suitable frame.
Cedar siding should be securely nailed to
framing members, furring members or to blocking
between framing members. Lumber sizes and
spacing for blocking and furring are shown
in Table 4.
Stud Walls
Stud walls generally require no special
preparation for horizontal siding installation.
Siding should be nailed into studs at maximum
24" centers when |
applied over wood-based, solid sheathing and 16"
on center when applied without sheathing. In those
areas where an air space between siding and sheathing
is desired, nail siding to furring strips (Table
4).
For vertical siding installation, stud walls
require horizontal blocking lines or furring strips
(Table 4). When applied over wood based sheathing,
vertical siding should be nailed to horizontal
blocking or other wood framing members not exceeding
36" on center when face nailed or 32"
on center when blind nailed. When installed without
sheathing, vertical siding should be nailed to
wood framing or blocking members at 24" on
center. Some building codes require 24" on
center with or without sheathing. Check your local
code to verify requirements.
Masonry Walls
Masonry walls require furring strips for
horizontal and vertical siding installation. Furring
strips must be thick enough to allow for nail penetration
of 1-1/2" into solid wood (Table 4).
Table 4. Lumber Size and Spacing
for Blocking and Furring*
|
Minimum Lumber Size (inches) |
Maximum Center-to-Center Spacing (inches)
|
| Blocking |
2 x 2 |
24 |
| Furring over Sheathing** |
1 x 2 |
24 |
| Furring over masonry walls |
2 x 2 |
24 |
* Furring must be securely fastened to studs.
** Can be used in moist and severe climates to form
an air space between siding and sheathing. |
