Rectangular duct with internal liner

Before you start

• Look at the liner before it goes up.
• If it is wet, delaminated, or has been s...
• Stage the needed tools and materials before lifting the section: Approved lined-duct edge sealant/adhesive, brush, mechanical fasteners or pin....

Lay it out

1. Handle sections by the metal, not the liner. Fingers dig into liner and on...

Set and support it

1. Set and verify the approved supports before the connection is closed. Keep the joint from carrying the weight of the duct or fitting.
2. Use the approved support method for this condition: Support without crushing insulation/liner.

Make the connection

1. 1

   Handle sections by the metal, not the liner. Fingers dig into liner and on...