Want the look of slate without the
cost or weight? The people who make
Authentic Roo f take 100% recycled
and re-engineered polymers and rubber
materials, mix them together, then
injection-mold them into dark gray,
12x18-inch pieces patterned after
100-year-old slates. The rubber makes
the slates flexible, while the plastic
adds strength. Authentic Roof slates
weigh about the same as equally-sized
asphalt shingles, cut easily with a utility
knife, and are fastened to a standard
plywood roof deck with 11/2-inch galvanized
roofing nails. (No batten strips are
needed.) The slates can be installed
with up to a 7-inch exposure, and the
tabs at each end maintain a 1/4-inch
spacing between slates. The cost is
approximately $250 per square and
$2.50