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Manufacturer and supplier of roof products and accessories for the metal building industry since 1964
ST Hooded Intake-Relief Ventilator
Intake or relief non-powdered ventilators operate on pressure differential between the inside and outside of the building. The functional design comes in a wide array of sizes to accommodate your project’s CFM requirements. Also, the low profile shape is comparable to more expensive models while yielding the same/similar benefits at a reduced price.
Features
- Throat area between 1.0-40.0 SF (various length & width configurations)
- 1/2" mesh bird screen
- Weatherproof and stormproof (normal conditions)
- Integral base nests with metal panel or curb cap
- Aluminum or Galvanized Steel
- Mill, galvanized, powder coat or Kynar finish
- Description
- Model Guide
- Sizes and Weights
- Documents
Standard Design Specifications
| Design | Angled inner surface of hood promotes optimized airflow by reducing pressure loss. See submittal for CFM performance data. |
| Base | 18 GA galvanized steel Long side of curb parallel to ridge/peak |
| Throat Sizes | 12″-96″ (various length & width configurations) |
| Frame | 18 GA Galvanized Steel |
| Hood | 22 Gauge Galvanized Steel Crowned hood for watershed Seamed center on larger models |
| Screen | 1/2″ mesh 0.063″ aluminum or 1/2″ mesh 19 GA galvanized steel |
| Pitched Base | Pitch-corrected for level appearance when specified |
| Finish | Mill Aluminum, Galvanized Steel, Powder Coat or Kynar |
| Warranty | Galvanized Steel: 1 Year Aluminum: 5 Years |
St Hooded Ventilator Options
| Backdraft Damper – Gravity or Motorized | Applicable for intake or relief. Non-motorized operates on pressure differential. Low velocity intake or relief conditions require motorized damper operation (optional). Review backdraft damper documentation to determine if motorized application is required for the project. |
| Insect Screen | Replace standard bird screen with insect screen when specified |
| Aluminum Construction | Frame / Curb: 0.080″ Aluminum in lieu of 18 GA Galvanized Hood: 0.040″ Aluminum in lieu of 22 GA Galvanized |
St Hooded Ventilator Model Guide
| Model | Throat Width | Throat Length | Material | Finish | Backdraft Damper Option | Special Features |
| ST | Custom Width | Custom Length |
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I = Insect Screen |
Example
ST-3648-GM-GBD is a 36″x48″ throat size, constructed with galvanized steel and with a gravity-operated backdraft damper
Standard Sizes and Shipping Weights
See submittals for specific sizes and shipping weights.
| Model | Throat Width | Throat Length (Range) | Throat Area (Range) | Hood Length (Range) | Hood Width (Range) | Net Weight GALV (LBS) Range) | Net Weight ALUM (LBS) |
| ST12 | 12 | 12-120 | 1.0-10.0 SF | 20-120 | 20-24 | 18-130 | 15-91 |
| ST14 | 14 | 14-120 | 1.4-11.7 | 24-134 | 24-28 | 27-175 | 19-123 |
| ST16 | 16 | 16-120 | 1.8-13.3 | 26-135 | 26-31 | 27-186 | 19-130 |
| ST18 | 18 | 18-120 | 2.3-15.0 | 30-138 | 30-36 | 39-225 | 27-158 |
| ST20 | 20 | 20-120 | 2.8-16.7 | 32-138 | 32-38 | 39-250 | 27-175 |
| ST24 | 24 | 24-120 | 4.0-20.0 | 40-144 | 40-46 | 87-380 | 61-266 |
| ST30 | 30 | 30-120 | 6.2-25.0 | 50-143 | 50-55 | 118-375 | 83-263 |
| ST36 | 36 | 36-120 | 9.0-11.0 | 60-143 | 60-65 | 184-480 | 129-336 |
| ST42 | 42 | 42-120 | 12.2-35.0 | 68-152 | 68-74 | 239-595 | 167-417 |
| ST48 | 48 | 48-120 | 16.0-40.0 | 77-155 | 77-83 | 287-640 | 201-448 |
Check out our Product Line Card
R&S manufactures a vast array of products to fit your project needs. We aim to supply all of your metal building roof accessory needs, not just one product. Why go to multiple vendors when R&S can supply it all?
