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Dayton Roof Curb: Fixed Nonventilated Curbs, Square Curb, 40.5 x 40 1/2 in Inside Dim - Roof Curbs
DaytonRoof Curbs

Dayton Roof Curb: Fixed Nonventilated Curbs, Square Curb, 40.5 x 40 1/2 in Inside Dim

The Dayton Roof Curb is a fixed nonventilated curb designed for use with 45 in square base filtered supply fans. This steel curb features a galvanized finish, with an inside width of 40-1/2 in and an outside width of…

SKU 3G-OTH-79396

Brand
Dayton
Item
Roof Curb: Fixed Nonventilated Curbs, Square Curb, 40.5 x 40 1/2 in Inside Dim
Category
Roof Curbs
Available to Order
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Technical Specifications

Dayton
Manufacturer Part Number
3AZJ3
Type
Square Curb, Mfr Part # 3AZJ3
Material
Steel
Finish
Galvanized
Standards
UL 705
Inside Dim
40.5 x 40 1/2 in
For Fan Type
Filtered Supply Fans
For Use With
45 in Square Base
Curb Inside Width
40-1/2 in
Curb Outside Width
43-1/2 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 curb designed for use with 45 in square base filtered supply fans. This steel curb features a galvanized finish, with an inside width of 40-1/2 in and an outside width of 43-1/2 in. It complies with UL 705 standards.

Frequently Asked Questions

What is the Dayton Roof Curb 3AZJ3 used for?

The Dayton Roof Curb 3AZJ3 is a fixed nonventilated curb designed to mount filtered supply fans with a 45 in square base. It provides a stable, weatherproof transition between the fan and the roof opening, ensuring proper airflow and structural support in commercial HVAC systems.

What are the specifications of the Dayton Roof Curb 3AZJ3?

The Dayton Roof Curb 3AZJ3 is a square curb with a galvanized steel finish. Inside dimensions are 40.5 x 40 1/2 in, with a curb inside width of 40-1/2 in and outside width of 43-1/2 in. It is UL 705 listed and designed for filtered supply fans with a 45 in square base.

Where to buy the Dayton Roof Curb 3AZJ3 worldwide?

3G Electric supplies the Dayton Roof Curb 3AZJ3 worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time; we source and deliver this curb to any international location.

How to install the Dayton Roof Curb 3AZJ3?

Install the Dayton Roof Curb 3AZJ3 by securing it to the roof structure with appropriate fasteners, ensuring a level base. Seal all curb-to-roof joints with approved flashing and caulk. Then mount the 45 in square base filtered supply fan onto the curb, 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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