Building Products: Ducts

Rooftop-Equipment Supports
Airtec Products Corp.

Duct Hanger
Hardcast

Acoustical Duct Liner
CertainTeed Corp.

Insulation Fastener
J.T. Products

Duct Sealant
Hardcast

Flue Duct Expansion Joints
Garlock Sealing Technologies

Duct Board
CertainTeed Corp.

Duct Board
Johns Manville