Hooded Propeller Roof Exhaust Fans

Roof Top Fan Series


Model Features

  • Exhaust air to over 40,000 CFM up to 3/4" w.g.
  • Belt drives permit easy performance adjustments when needed
  • Direct drive units have low sound levels and quiet operation.
  • Reversible blades available
  • cULus 705 Listed (HREB-C only)

Model Overview

HREB-C and HRED-C are roof mounted low profile exhaust fans rated from 5,700 to over 40,000 CFM, with static pressure capability up to 3/4". Seven sizes are available from 24-60" with an AMCA rating for Air and Sound performance. Fans, hoods and bases are available in galvanized or aluminum construction. They are used to exhaust air from a variety of commercial and industrial operations such as manufacturing and assembly plants, warehouses, garages, laundries and similar buildings.

For greater versatility, reversible blades are available as an option. Exhaust or supply air movement is achieved by a remote reversing switch. The reverse feature can provide positive or negative building pressurization with single or multiple fan units. Maximum utilization of the fans can be achieved with this inexpensive option.

The unit's low silhouette fits today's clean uncluttered building design and its standard all-galvanized construction provides years of resistance to corrosion.

Greater hood strength and weather resistance is achieved from the modular design. Heavy-gauge galvanized hood sections are cross broken and connected by a standing seam for extra strength over conventional hood designs.

The knockdown feature on the larger sizes also provides lower transit costs and ease of jobsite handling. This modular design is one of the strongest and easiest to assemble in the industry. Hood sizes 58 to 78 inch (represents fan sizes 24 to 36 inches) ship assembled. Hood sizes 87 to 123 inch (represent fan sizes 42 to 60 inch) ship knockdown or can be special ordered assembled.

For damper maintenance, an entire side panel of the fan stack easily removes for access. The hood hinges open for motor access. The belt drive fan units all have outboard drives and adjustable motor bases for easy maintenance. These features are standard.

2-year fan housing warranty, 1-year motor warranty


Size CFM Range Max SP
24 1159 to 10347 3/4"
30 3076 to 13542 3/4"
36 2134 to 21737 3/4"
42 3067 to 24690 3/4"
48 8269 to 37349 3/4"
54 13225 to 47674 3/4"
60 10364 to 48414 3/4"


Size CFM Range Max SP
24 1193 to 10288 3/4"
30 2116 to 15195 3/4"
36 3906 to 24839 3/4"
42 7973 to 20253 3/4"
48 7827 to 38005 3/4"
54 9565 to 36365 3/4"
60 30299 to 48780 3/4"

Note: Additional accessories are available for certain products. Contact your S&P Representative for more information about these accessories.

Aluminum Construction  
Automatic (Gravity) Damper  
Disconnect Switch  
Extended Grease Lines  
Fiberglass Free Insulation  
Motor Operated Damper Submittal
Motor Safety Chain  
Remote Drive  
Roof Curb  
Spring Assist Kit  
General Catalogue Section
Typical Specification Sheet
Instruction and Operation Manual
  • General / Clean Air