reprinted courtesy of ServiceMagic.com
Wood sidings are milled in various
patterns for both horizontal and vertical application. Wood siding
is usually, but not always, applied over solid sheathing and a
layer of building paper. Horizontal patterns are nailed through
sheathing into studs; vertical patterns generally are nailed to
horizontal nailing or furring strips. Horizontal sidings are always
applied so that each board overlaps the one below it; in some
cases, the edges are milled to interlock, as they are with all
vertical patterns.
Wood shingles are used as a siding material for a wide range of house styles, from modern to Victorian. They're usually installed over solid sheathing or horizontal furring strips and a protective layer of building paper.
-- Tips courtesy of Service Magic