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Manufacturer and supplier of roof products and accessories for the metal building industry since 1964
ExoVent™ Solar – UL Listed Heat & Smoke Vent Skylights
R&S Daylighting Smoke Vents carry a UL 793 rating. The lids automatically open when the fusible link activates at a preset temperature. Our complete line of roof smoke vent skylights meets local fire codes and have the added benefit of allowing natural daylight to enter the building. The curb base may be aluminum or galvanized steel. The metal building option includes a curb base that fits any standing seam, panel rib, or insulated metal panel roof. Curb mount models are also available which can be built to fit most curb sizes. All R&S Smoke Vents have both inside and outside release handles with automatic braces that keep the lids open. These products may include McCabe links which open the lids from the ground level (controls by others). OSHA compliant safety screen is available to prevent a fall accident.
Other Smoke Vent Products: Solid Lid | Single Leaf | Cold Storage
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Daylighting Smoke Ventilator with Fall Protection Screen -
Twin Leaf Smoke Ventilator -
Double Dome Smoke Ventilator for Standing Seam Roof -
UL Listed Smoke Ventilator on Standing Seam Roof -
Features
- UL 793 rating - twin leaf design
- Durable copolyester double dome skylight lid
- UL fusible link opens at preset temperature
- Optional McCabe to open lids electronically
- Inside/outside manual release handles
- Gas springs deliver a controlled opening speed
- Lid uplift rating 30 PSF, latch uplift rating 90 PSF
- Metal building flanges, self-flashing or curb mount
- OSHA compliant fall screen available (factory installed)
- Automatically Operated Roof Vent 28k | 4848
- Description
- Model Guide
- Sizes and Weights
- Documents
- Certification
- FAQ
- R&S Insights
Specifications
| Material |
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| Construction |
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| Skylight Lid |
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| Operation |
|
| Gas Springs | Low spring rate nitrogen gas springs for smooth operation. Black cathodic epoxy finish |
| Pitch | Non-pitch corrected, slopes with roof |
| Finish Options |
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| Accessories |
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| Certifications | UL 793 |
| Warranty | 5 Years |
Metal Building – Type Seam Clip/Layover Side Flanges
Standard design features with seam-to-seam / layover side flanges. Highest level of weather-tightness for metal building applications.
| Curb Up-slope |
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| Curb Down-slope |
|
| Curb Side Flanges |
|
Metal Building – Type Flat Side Flanges
Standard design features with flat side flanges. Lower cost option.
| Curb Up-slope |
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| Curb Down-slope |
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| Curb Side Flanges |
|
Metal Building – Type If Curb (Internally-Flanged)
Standard design features with base flange broken inward.
| Curb Up-slope |
|
| Curb Down-slope |
|
| Curb Side Flanges | Side base flanges break inward 2″ |
| Backer Channel | Backer channel and water diverter assembly included |
Conventional/Built Up Roofs
Standard design features with 3″ flat flange and self-flashing provisions
| Base Flanges | 3″ flat perimeter base flange |
| Self-Flashing Provisions | Perimeter cap flashing accepts roof material |
Options
| High Capacity |
|
| McCabe Link | McCabe resettable Link offers thermal / electronic activation of release. Provides flexible integration with existing fire safety equipment. Simplifies required annual testing process as no cutting is required. Can be electronically activated from ground level. |
| Stainless Steel Hardware | Hinge and clevis pin assembly constructed of type 316 stainless steel for ultimate protection against corrosion |
Skylight Lid Automatic Smoke Vent – Model Guide
| Model | WxL | Lid Type | Base Material | Base Type | Link Type | Link Temp | Options (list all that apply) |
| ULSH |
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Example
ULSH-4896-DDA-AL-MBSC-F165-FP is a UL listed automatic heat and smoke vent with a double dome skylight feature, aluminum construction with an integral seam clip metal building curb, a fusible 165F link, and integral fall protection screen.
Standard Sizes And Shipping Weights
UL-Listed Skylight Lid Smoke Vent Models
| Model | Inside Clear Opening | Weight (Steel) | Weight (Aluminum) | Open Capacity | Lid Uplift Rating |
| ULSH-4848 | 48″ x 48″ | 170 lbs | 110 lbs | 10 PSF | 30 PSF |
| ULSH-4896 | 48″ x 96″ | 260 lbs | 170 lbs | 10 PSF | 30 PSF |
| ULSH-6060 | 60″ x 60″ | 220 lbs | 145 lbs | 10 PSF | 30 PSF |
| ULSH-6072 | 60″ x 72″ | 230 lbs | 150 lbs | 10 PSF | 30 PSF |
| ULSH-6096 | 60″ x 96″ | 310 lbs | 205 lbs | 10 PSF | 30 PSF |
UL-Listed Skylight Lid High-Capacity Smoke Vent Models
| Model | Inside Clear Opening | Weight (Steel) | Weight (Aluminum) | Open Capacity | Lid Uplift Rating |
| ULSH-4848 | 48″ x 48″ | 260 lbs | 170 lbs | 40 PSF | 30 PSF |
| ULSH-4896 | 48″ x 96″ | 300 lbs | 200 lbs | 35 PSF | 30 PSF |
| ULSH-6060 | 60″ x 60″ | 260 lbs | 170 lbs | 30 PSF | 30 PSF |
| ULSH-6072 | 60″ x 72″ | 270 lbs | 175 lbs | 30 PSF | 30 PSF |
| ULSH-6096 | 60″ x 96″ | 350 lbs | 230 lbs | 20 PSF | 30 PSF |
Documents
VIEW UL 793 LISTING CARD (Free Registration to UL Product iQ Required)
UL Listed Smoke and Heat Vents
| Product Description | Model | Submittal | Specs | Installation | Warranty |
| Single Dome | ULSH-SDA | WORD | |||
| Single Dome High Capacity |
ULSH-SDA-HC | WORD | |||
| Double Dome | ULSH-DDA | WORD | |||
| Double Dome High Capacity |
ULSH-DDA-HC | WORD |
Underwriters Laboratories (UL)
UL-Listed Models meet UL Standard 793
All UL models include stickers and labeling that conform with requirements
View R&S Smoke Hatch Listing Card – USA >>
Note: You must create a free user account at UL Product iQ to view online listing cards referenced above.
Create a UL Product iQ Account >>
What are the Key Benefits of Daylighting Smoke Vents?
Daylighting Smoke Vents offer natural lighting, improve energy efficiency, and release smoke and gases during fires for safety.
How Do Daylighting Smoke Vents Operate in a Fire?
In a fire, these vents open at a preset temperature, aiding in fire safety and enhancing evacuation conditions.
Are Smoke Vent Skylights as Effective as Standard Smoke Vents?
Properly designed and installed, Smoke Vent Skylights are as effective as standard vents, with added skylight functionality.
Can Daylighting Smoke Vents Be Integrated into Any Building Design?
These vents can be integrated into various building designs, matching different architectural styles.
Do Daylighting Smoke Vents Have Any Special Installation Requirements?
Professional installation is crucial for proper functionality, along with regular maintenance.
R&S Insights Blog
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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?
