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Dayton Roof Curb: Fixed Nonventilated Curbs, Square Curb, 68 x 68 in Inside Dim - Roof Curbs
DaytonRoof Curbs

Dayton Roof Curb: Fixed Nonventilated Curbs, Square Curb, 68 x 68 in Inside Dim

The Dayton Roof Curb is a fixed nonventilated square curb designed for downblast fans. It features a galvanized steel finish, with an inside width of 68 inches and an outside width of 71 inches, and is intended for…

SKU 3G-OTH-79293

Brand
Dayton
Item
Roof Curb: Fixed Nonventilated Curbs, Square Curb, 68 x 68 in Inside Dim
Category
Roof Curbs
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Technical Specifications

Dayton
Manufacturer Part Number
3AZJ9
Type
Square Curb
Material
Steel
Finish
Galvanized
Standards
UL 705
Inside Dim
68 x 68 in
Outside Dim
71 in x 71 in
For Fan Type
Downblast Fans
For Use With
72-1/2 in Square Base
Curb Inside Width
68 in
Curb Outside Width
71 in
View Full Spec Sheet

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Dayton Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The Dayton Roof Curb is a fixed nonventilated square curb designed for downblast fans. It features a galvanized steel finish, with an inside width of 68 inches and an outside width of 71 inches, and is intended for use with a 72-1/2 inch square base. This product complies with UL 705 standards.

Frequently Asked Questions

What is the Dayton Roof Curb 3AZJ9 used for?

The Dayton Roof Curb 3AZJ9 is a fixed nonventilated square curb designed to mount downblast fans on commercial or industrial roofs. It provides a stable, weatherproof base that supports the fan and directs airflow, commonly used in HVAC and ventilation systems across manufacturing plants and warehouses.

What are the specifications of the Dayton Roof Curb 3AZJ9?

The Dayton Roof Curb 3AZJ9 is a square curb with a galvanized steel finish. Inside dimensions are 68 x 68 in, outside dimensions are 71 x 71 in. It is designed for downblast fans with a 72-1/2 in square base and complies with UL 705 standards.

Where to buy the Dayton Roof Curb 3AZJ9 worldwide?

3G Electric supplies the Dayton Roof Curb 3AZJ9 to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your site. Contact us for a quote and lead time on this roof curb.

How to install a Dayton Roof Curb for downblast fans?

Install the Dayton Roof Curb on a flat, structurally sound roof deck. Secure the curb to the roof structure per local building codes, ensuring a weathertight seal. Then mount the downblast fan on the curb's 72-1/2 in square base, following the fan manufacturer's instructions for electrical and duct connections.

Used in

Common applications for Dayton
HVAC ventilation — DAYTON centrifugal upblast roof exhaust fans (SKU 7M7U3) for kitchen exhaust systems
Mechanical power transmission — DAYTON HTD timing pulleys (SKU 404GV0) for conveyor belt drives
Process water handling — DAYTON self-priming centrifugal pumps (SKU 2ZXT4) for dewatering or transfer
Roofing and building services — DAYTON fixed ventilated roof curbs (SKU 4HX59) for filtered supply fan installations
Material handling — DAYTON latch assemblies (SKU 2KEN4) for electric chain hoist hook safety
Industrial air movement — DAYTON downblast roof exhaust fans (SKU 3HFL9) for clean air exhaust in manufacturing plants

Dayton Products

3G Electric supplies Dayton roof curbs. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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