Detail ID
5.0105.2
Topic
Forced Air
Subtopic
Duct Repair
Desired Outcome
Ducts properly and durably supported
Single Family Site-Built Housing
Manufactured Housing
Multifamily Housing
Specifications
- SF
- MH
- MF
| Specification | Objective |
|---|---|
|
Support flexible and duct board ducts and plenums with 1-1/2" wide or greater material, installed every 4' or less, without crimping or pinching the ductwork or reducing the interior dimensions Ducts must never contact the ground |
Ducts securely supported without causing interior dimensions to be reduced or allowing moisture damage |
- SF
- MH
- MF
| Specification | Objective |
|---|---|
|
Support metal ducts with 1/2" wide or greater eighteen gauge metal straps, 12-gauge galvanized wire, or metal rods every 10' or less Ducts must never contact the ground |
Ducts securely supported and protected from corrosion |
- SF
- MH
- MF
| Specification | Objective |
|---|---|
|
Support upflow supply plenums or downflow return plenums independently from the air handler attachment |
Prevent plenum sagging or excessive movement |