Manufacturer and supplier of roof products and accessories for the metal building industry since 1964

RS Round Intake-Relief

RS Round Intake-Relief Ventilator

This cost-effective exhaust or relief vent is designed for low volume air movement in warehouse storage buildings, light industrial buildings, attics, lofts and any other structure requiring ventilation. Product may be fitted with a pivoting disc damper to moderate airflow or to close off the unit under weather conditions. Base options include a flat flange or curb mount cap.

  • Description
  • Model Guide
  • Sizes and Weights
  • Documents

Standard Design Specifications

Design Round vent design offers versatile ventilation where spot gravity relief or exhaust is needed. Simple pivoting disc damper and pull chain may be added to protect against intruding rain.
Base Throat Type (round)
Flat collar base
Collar top curb (metal building or conventional)
Throat Sizes 6″ – 36″ in multiples of 2
See submittal for airflow by size
Material Windbands and diverter 22-26 GA Galvanized steel (varies by size)
Screen 1/2″ mesh 19 GA galvanized steel
Finish Galvanized Steel, Powder Coat or Kynar
Warranty 1 Year

RS Round Ventilator Options

Disc Damper Counterbalanced pivoting disc damper and pull chain

RS Round Ventilator Model Guide

Model Throat Diameter Material Finish Special Features
RS Custom
  • G = Galvanized
  • M = Galvanized
  • S = Special Color or Finish
  • Disc Damper w/ Pull Chain
  • Insect Screen


RS-26-GS-D is a 26″ throat size, constructed with galvanized steel with custom-color finish and fitted with a disc damper.

Standard Sizes and Shipping Weights

See submittals for specific sizes and shipping weights.

Model Throat Diameter Throat Area Width Height (For curb mount models add 6-8″) Net Weight GALV (LBS) Range)
RS6 6″ 28.27″ 10″ 8.5
RS8 8″ 50.27″ 13″ 9.5
RS10 10″ 78.54″ 16″ 11
RS12 12″ 113.1″ 19″ 13
RS14 14″ 153.94″ 22″ 14
RS16 16″ 201.06″ 25-1/2″ 15
RS18 18″ 254.47″ 30″ 18.5
RS20 20″ 314.16″ 32″ 19.5
RS24 24″ 452.39″ 38″ 22.5
RS30 30″ 530.93″ 48″ 24.5
RS36 36″ 1017.88″ 56″ 29


Product Description Model Submittal Specifications Installation Warranty
Model RS Round Vent RS PDF  PDF

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