Custom RTU Roof Curb Adapters for Commercial HVAC Replacements
Gainesville Sheet Metal manufactures custom RTU roof curb adapters designed to connect new rooftop HVAC equipment to existing roof curbs. When a replacement rooftop unit has a different footprint, mounting configuration, or supply and return opening locations than the existing equipment, a custom curb adapter can provide a practical solution without replacing the existing roof curb.
Our curb adapters are fabricated around the requirements of your existing curb and new rooftop unit. We can work from equipment model numbers, manufacturer specifications, drawings, field measurements, or project plans to develop a sheet metal adapter designed for your specific application.
Whether you are replacing an aging rooftop unit, changing equipment manufacturers, or upgrading a commercial HVAC system, Gainesville Sheet Metal can provide a custom-fabricated RTU curb adapter built for the job.
What Is an RTU Roof Curb Adapter?
An RTU roof curb adapter is a custom-fabricated sheet metal assembly that sits between an existing rooftop equipment curb and a new rooftop unit.
Commercial buildings often have existing roof curbs that were designed around the original HVAC equipment. When that equipment is replaced, the new unit may have different overall dimensions or different supply and return air opening locations.
Instead of removing the existing curb and modifying the roof, a curb adapter can bridge the dimensional difference between the existing curb and the replacement RTU.
The adapter is designed to match the existing curb on the bottom and the new HVAC equipment on top, while accommodating the required airflow connections between the rooftop unit and the building's duct system.
Why Use a Curb Adapter for an RTU Replacement?
Replacing a commercial rooftop unit can involve more than simply removing the old equipment and setting the new unit in place. Differences in equipment footprints, curb dimensions, and duct opening locations can create installation challenges.
A custom RTU curb adapter can help simplify the replacement process by providing a transition between the existing roof curb and the new equipment.
One of the primary functions of an RTU curb adapter is to accommodate the difference between the existing roof curb and the replacement rooftop unit.
The lower portion of the adapter is designed around the existing curb, while the upper portion is configured to match the new RTU.
This can allow the replacement equipment to interface with an existing roof opening and duct system while reducing the need for extensive modifications.
Depending on the project, the adapter may incorporate transitions or offset areas to accommodate differences between the existing and new supply and return air openings.
Supply & Return Air Openings
Proper alignment of the supply and return air connections is an important part of an RTU curb adapter.
The adapter can be fabricated around the existing duct openings and the connection requirements of the new rooftop unit. This allows the transition between the existing curb configuration and new equipment to be incorporated into the adapter design.
Project-specific dimensions and equipment information should be reviewed before fabrication to determine the appropriate configuration.
Contact us with your project dimensions, drawings, specifications, or questions about materials and fabrication options. We'll work with you to determine the right solution for your application.
Call Gainesville Sheet Metal at (940) 665-8741 or contact us today to discuss your project.
