Alan Carson originally developed this information for Carson Dunlop's training programs. Visit www.carsondunlop.com
.Alan Carson of Carson Dunlop is an ASHI Member and Past President.
Carson Dunlop & Associates, Toronto, ON, offers home, commercial
and home warranty inspection services, as well as educational services,
reporting systems and the Home Reference Book. For information, call
800-268-7070 or visit www.carsondunlop.com