Dayton Roof Curb: Fixed Nonventilated Curbs, Square Curb, 35.5 x 35 1/2 in Inside Dim

The Dayton is a fixed nonventilated roof curb designed to mount filtered supply fans with a 40 in square base. It provides a stable, weatherproof transition between the fan and the roof structure, and includes a damper tray for airflow control. Common in commercial HVAC installations.

The Dayton is a square steel curb with a galvanized finish. Inside dimensions are 35.5 x 35 1/2 in, outside width is 38-1/2 in. It includes a damper tray, complies with UL 705, and is intended for filtered supply fans with a 40 in square base. The manufacturer part number is .

3G Electric supplies the Dayton roof curb to customers worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time; we source and deliver this part to any international destination.

Install the Dayton curb on a flat roof by securing it to the roof structure with appropriate fasteners (not included). Ensure the curb is level and sealed against weather. The damper tray should be positioned for proper airflow. Always follow local building codes and the fan manufacturer's instructions for safe installation.