Professional roofing estimators have
to come up with estimates fast. But
even if you do only an occasional roof,
you can cut down your bidding time by
borrowing some of their estimating
techniques. With these, you won't
have to climb on the roof to get an
accurate waste-free estimate. You do all
your measuring and calculating from
the ground.
This system is based on measuring
the building's "footprint" and converting
it to a "roofprint" by using factors
for slope and pitch. You gauge slope
and pitch from the ground, as well,
either by direct measurement or by
using special measuring jigs.
You'll only need simple math. But
make sure your measurements are
accurate. The easiest way to keep track
of