Advance Tabco
Advance Tabco FC-1-1818-X Wall Mounted Sink 18 in x 18 in, 304
- Silver
$790.99
0.00913215BTC
In stock
Broan-NuTone, LLC
Broan-NuTone, LLC RD1 Radiation Damper Accessory
Ceiling radiation damper with a 12.5 in. square steel frame for fire-rated bath fan installations
- Selling UnitEach
- TypeBathroom
- Ceiling radiation damper limits fire spread
- Steel frame provides structural durability
- 5 in width fits standard rough openings
- 3 5/8 in height suits shallow ceiling cavities
- Manual operation requires no power supply
Ceiling Radiation Damper 12.5 Inch
The Broan-NuTone RD1 is a manual ceiling radiation damper designed for square duct openings in bathroom ventilation systems. It fits a 12.5 inch rough opening and uses a steel frame to maintain fire-resistance ratings in ceiling assemblies. Installers use it where building codes require radiation protection.
Sustained Fire Exposure Behaviour
Under sustained fire conditions the steel frame holds its shape to block heat and flame passage through the ceiling penetration. The manual operation means the blades stay fixed unless physically adjusted, so there is no motor or spring to fatigue over time. This passive design suits long-term installation without cycling wear.
Steel Frame and Square Mounting
The all-steel construction resists corrosion in humid bathroom environments and keeps the damper rigid during handling. Its square frame matches square ductwork directly, eliminating the need for transition pieces. The 3 5/8 inch overall height fits within standard ceiling cavities without protruding.
Highlights
- Ceiling radiation damper limits fire spread
- Steel frame provides structural durability
- 5 in width fits standard rough openings
- 3 5/8 in height suits shallow ceiling cavities
- Manual operation requires no power supply
Specifications
| Brand | Broan |
|---|---|
| Selling Unit | Each |
| Type | Bathroom |
Questions about this item
How much heat does the 12.5-inch radiation damper add when it runs continuously?
The steel frame damper is a passive fire-safety accessory; it adds no heat because it contains no motor or heating element.
What existing ceiling opening does the 12.5-inch square damper require for installation?
It fits a 12.5-inch square rough opening in the ceiling and is designed for square duct connections.
Will the 12.5-inch damper work with my older square ductwork?
Yes, the damper is built for square duct shapes and matches a 12.5-inch square rough opening, so it connects to existing square ducts of that size.
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