With basic custom made hand tools , an experienced
worker can produce 20 to 30 M2 of finished ductwork per day
at the installation site , from simple rectangular duct to complex rounded
edge tees or bends , 4 to 10 times faster that
of conventional sheet metal ductwork.
Custom made cutting tool with blade setting at 45 deg is
produce V-groves on the composite board . Adhesive is applied at the joints
and the boards are folded 90 deg to form a leak-proof insulated ducting .
Rounded bends can be made with bending press to form a
smooth flowing junctions .
Sections of duct are joined together using low profile
plastic flanges to form continuous leak-proof ducting system .
Common industrial grade moisture cure urethane adhesives are fully
compatible with PU foam and thus provide strong and long lasting joints .
10 simple steps to make complete air duct from standard PU/AL