Home / Requirements / IBHS Plus metal forced-air vent closure
IBHS Wildfire Prepared Home Plus metal forced-air vent closure
The current IBHS Plus standard adds noncombustible construction to the Base functional-closure requirement for forced-air vents.
The product record must document both a functional louver or flap and noncombustible construction. Duct and installation requirements remain separate.
Published requirement text
“In addition to having a functional louver or flap for forced air vents (e.g., dryer and central vacuum) as required for the Base level requirements, they shall also be made of noncombustible material (e.g., metal).”
Where this instrument is documented
Set a location to read how this instrument lands where you are.
No sourced application record joins this requirement to a place. The quoted text stands on its own; local reach is unknown.
Machine-readable constraints
| Attribute | Operator | Value |
|---|---|---|
| assemblyRole | eq | dryer-vent |
| functionalClosure | eq | true |
| material | in | aluminum–copper–galvanized-steel–stainless-steel–steel–zinc |
Products with documented matching attributes
| Product | Category | Status | Documented match evidence |
|---|---|---|---|
| Artis stainless-steel dryer wall cap with damper | vents | Attribute match | |
| Broan-NuTone 885NS steel wall cap | vents | Attribute match | 3 cited fields |
| FAMCO DWVG dryer wall vent | vents | Attribute match | |
| FAMCO FWV flush dryer wall vent | vents | Attribute match | |
| Imperial VT0497-A wall exhaust cap | vents | Attribute match | |
| Seiho CFXC dryer vent cap | vents | Attribute match | 3 cited fields |
| Seiho SFB-P dryer vent | vents | Attribute match | 3 cited fields |