Technical Specifications

11
INTERIOR WALL CONSTRUCTION
Figure 16: Furring Strip Detail
Figure 19: Top Course
Figure 18: Corner Detail
Figure 17: Starter Course
Design and Application Details
Certi-label Western Cedar shingles or shakes
are building materials that adapt easily to
many different structural forms. Their use in
interiors is practically unlimited, and a wide
variety of imaginative effects can be
achieved.
Certi-label Western Cedar shingles or shakes
can be readily applied over almost any
interior wall surface, including wood, brick,
plaster, or concrete. Nails, staples, or glue
may be used as fasteners on interior wall
projects. Certi-label Western Cedar shingles
or shakes may be attached directly to the
interior wall providing it has sufficient
holding qualities to support the fasteners. If
this is not the case, they may be applied over
spaced furring strips, which are fastened to
the wall by nails or glue. As a general rule,
the furring strips should be placed a distance
apart equal to the desired exposure.
Calculate the number of courses by dividing
the wall height (minus the height of the base
board, if any) by the desired exposure. Mark
the positions of the nailing strips on a furring
strip, then transfer these measurements to
the wall. Fasten 1" x 2" or 1" x 3" furring
strips to the wall (e.g. by nailing them
through the wall into the studs) at the
positions marked. If the Certi-label Western
Cedar shingles or shakes are to be carried
around the corner, make sure the furring
strips line up (Figure 16).
Start with a double course at the bottom of
the wall. Use two nails or staples in each
Certi-label Western Cedar shingle or shake
placed so that the nail heads will be covered
by the next course. The outer layer should
overlap and conceal the side joints of the
first course (Figure 17).
Continue with single courses to the top of
the wall. A straight edge tacked to the wall
will keep the courses true and the exposure
consistent.
Alternately overlap the Certi-label Western
Cedar shingles or shakes on the outside
corner to give a ''laced'' effect, then trim
them flush with a block plane (Figure 18).
Cut the Certi-label Western Cedar shingles or
shakes for the last course and discard the
thin end. Glue or nail the last course in place
to make a neat top edge. A moulding strip
may be applied to cover nail heads and hide
any irregularities in the ceiling (Figure 19).
The interior Certi-label Western Cedar
shingles or shakes can now be finished
to suit almost any taste. Contact a
reputable finish manufacturer for
more details.