Loren Cook RCG-22 Roof Curb Damper Tray 22.5x22.5 in Steel

Product Description

The LOREN COOK RCG-22 is a galvanized steel roof curb with an integrated damper tray, designed for commercial and industrial rooftop ventilation installations. It provides a weather-tight, structurally sound base for rooftop exhaust fans and HVAC equipment mounted on low-slope or flat roofs. The curb measures 22.5 x 22.5 inches on the inside square and 26.5 x 26.5 inches on the outside square, with a height of 13.5 inches. Constructed from 18-gauge galvanized steel, it delivers lasting corrosion resistance in exposed rooftop environments. Licensed HVAC and sheet metal contractors typically install this curb as part of a rooftop unit or exhaust fan assembly.

The RCG-22 is suited for commercial rooftop applications where a raised equipment curb is required to maintain proper drainage clearance and structural support. The built-in damper tray accommodates a damper assembly, making it appropriate for installations where airflow control or back-draft prevention is part of the design. It is commonly installed beneath rooftop exhaust fans, supply fans, and packaged HVAC units on flat or low-slope commercial roof decks.

Key Features

• Inside square dimension of 22.5 x 22.5 inches accommodates a wide range of rooftop fan and unit bases
• Outside square dimension of 26.5 x 26.5 inches for solid roof deck bearing surface
• 13.5-inch height provides adequate clearance for proper roof drainage and flashing
• 18-gauge galvanized steel construction resists corrosion in exposed outdoor environments
• Integrated damper tray supports damper installation without additional fabrication

Compatibility

Designed as an OEM-style roof curb for rooftop exhaust fans and HVAC equipment requiring a 22.5 x 22.5 inch inside curb opening. Consult equipment documentation to confirm curb opening dimensions before installation.

Installation Notes

Installation should be performed by a licensed HVAC or sheet metal contractor in accordance with local mechanical codes and manufacturer guidelines. Ensure the roof structure is capable of supporting the combined load of the curb and mounted equipment before fastening. The curb must be properly flashed and sealed to the roof membrane to prevent water infiltration. De-energize all associated electrical circuits and shut down any connected HVAC equipment before beginning installation or service work.

Technical Specifications

• Inside Square Dimensions: 22.5 x 22.5 inches
• Outside Square Dimensions: 26.5 x 26.5 inches
• Height: 13.5 inches
• Material: Steel
• Material Gauge: 18 gauge
• Finish: Galvanized

Standard Information

• Brand: LOREN COOK
• Manufacturer Part Number: RCG-22