RST C – Commercial Sun Tubes
- The Columbia Commercial 21” Rigid Sun Tube is an excellent source of natural light where regular skylights can’t be installed.
- To accommodate all your commercial sun tube requirements, Columbia offers two heavy duty models below.
- The Columbia system is designed to access as much direct sunlight with as few bends as possible.
Curb Mounted Model
- Curb mounted flashings allows the installer to build a curb to the specific requirements of the installation, meeting the demands of any location.
- Flat roof and curb mount flashing is constructed of industrial grade mill finish aluminum.
Flat Roof Flashing Model
- Flat roof flashing raises the skylight lens off the deck, providing clearance from heavy snow fall.
- Flat roof flashing is constructed of industrial grade mill finish aluminum.
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Acrylic Dome
Modified acrylic construction provides unsurpassed weatherability and superior impact strength.
Able to withstand large temperature swings, leakproof, prevents condensation and blocks out harmful UV rays.
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Flat Roof Flashing (RST-C – Flat Roof Flashing)
Constructed of commercial pure grade 1100 series aluminum without seams.
Unique round shape allows for easy installation on flat roofs without disturbing much of the roofing material.
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Aluminum Curb Mount Flashing (RST-C – Curb Mounted)
Constructed of commercial pure grade 1100 series aluminum.
Square shaped flashing easily installs over curb.
Curb box should be constructed on site and carefully sealed with roofing material.
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Highly Reflective Light Pipe
Miro-Silver surface specially designed for 98% reflectivity of pure white light even in early morning and late afternoon.
Light pipe is NOT a laminated polymer sheet – can’t delaminate, yellow, crack or peel.
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Rigid Tube
Miro-Silver® aluminum light pipe with 98% light reflectivity for maximum brightness.
Pipe is easily trimmed with shears during installation.
Maximum Tube length on the 21” Commercial Sun Tube is 20 feet.
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Trim Rim & Ceiling Diffuser
The decorative aluminum trim ring is powder coated white.
Diffusers are available for standard sheet rock ceiling, warehouse installation, or T-Bar office applications (see below).
Diffusers available in choice of Prismatic or Soft White.
CARACTÉRISTIQUES
- Available in two flashing options and three trim ring finishes
- Capable of delivering up to 1450 watts of light with a coverage area of up to 700 sq. feet.
- Ideal for drop ceiling applications in warehouses or T-Bar office settings.
- Warranty: Comprehensive 10 year warranty on Columbia Sun Tubes.
- Installation: Columbia Commercial Sun Tubes can be installed on flat or sloped roof applications.
- High Impact Acrylic Dome.
- Includes 4 feet of rigid light tube.
Roof Pitch 0:12
Minimum
Recommended
Location
- Factories
- Warehouses
- Retail malls
- Schools Hospitals
- Office buildings
- Government buildings
- Recreational Facilities
- Spas & Salons
The complete sun tube kit includes:
The dome is formed from crystal clear high impact acrylic – it absorbs 99% of UV rays while maintaining optic clarity.
Columbia Sun Tubes come with 4 feet of rigid aluminum light pipe. The pipe is made from heavy duty aluminum duct and is coated with ultra reflective Miro-Silver®.
The roof jack (Flashing) is a heavy duty aluminum frame designed to complement common roofing materials. Can be easily integrated with your flat roofing material.
The light diffuser fits easily into your ceiling, and is designed with a smooth integrated, modern finish. The standard kit comes with a prismatic diffuser. A soft white diffuser is available for a less intense light.
How A Sun Tube Works
Sunlight is captured by the dome
The crystal clear low profile impact resistant, acrylic dome sits on your rooftop, collecting sunlight from sunrise to sunset. The flashing housing ensures that the unit is weathertight and leakproof.
Natural sunlight enters the building
The low profile light diffuser fits in your ceiling, and is engineered to spread the captured sunlight evenly throughout the room.
The prismatic diffuser reflects natural light in all directions – eliminating glare and “hot spots”, while the soft white diffuser provides softer illumination. The 21” model delivers the equivalent of 1,450 watts of electric light – without the cost!
Sunlight is reflected through a rigid aluminum light pipe
The captured sunlight travels through a rigid ultra reflective, mirror-like tube, before entering the building. Our specially designed Miro-Silver® light pipe collects sunlight even when the Sun’s position is low in early morning or late afternoon.
The sun tube works, even on cloudy days. An additional benefit, is our sun tube filters out the harmful UV rays that can endanger health and can fade clothing, furniture, and carpeting.
Columbia’s Miro-Silver® highly reflective rigid aluminum pipe draws the light in and bounces it downward.
Benefits Of A Columbia Sun Tube
Sun Tubes Bring Healthy Sunlight Into Your Commercial Building
Columbia sun tubes operate without needing a power supply. No wiring or switches – just free light with all the positive benefits of natural lighting. The crystal clear high impact acrylic dome captures sunlight on the roof throughout daylight hours.
The elegant black powder coated aluminum flashing protects the sun tube from the elements, rain, snow, ice, and wind.
Get The Natural Sunlight You Want, Without Harmful UV Rays
The sunlight enters the clear acrylic dome and travels through a highly reflective, mirror-like Miro-Silver® tube. The light bounces downward through the pipe before it enters your home. Columbia’s specially designed Miro-Silver® light pipe is able to draw in a significant amount of sunlight even when the sun is low in the sky, in early morning and late afternoon.
The Columbia sun tube works on cloudy days – though the intensity of the light is slightly diminished. Additionally, our sun tubes filter out the harmful UV rays that can be detrimental to health, and fade artwork, clothing, furniture and carpeting.
Natural Sunlight Without Unwanted Heat Gain
Columbia sun tubes operate with virtually no heat gain. As the sunlight travels through the Miro-Silver® light pipe it passes through a thin, clear impact resistant acrylic lens which improves U-factor and Solar Heat Gain coefficient.
Fill Your Building With Bright Evenly Dispersed Sunlight
The attractive low profile ceiling light and lens are designed to evenly disperse sunlight into your commercial property.
The flat prismatic lens surface bounces the light in all directions eliminating the glare and hot spot effect of traditional skylights. Soft white diffuser also available.
Depending on the model size, our tubular skylights can illuminate the equivalent of up to 300 – 1,450 watts of electric artificial light – without adding to your energy bill!
Finishing Options
Sheet Rock
Standard Flat Ceiling Ring Installation
Warehouse
Perfect for warehouses
Transition Box
Transition Box Installation – suitable for T-bar office setting
Project Gallery
RST-C – Commercial Sun Tubes available in 2 lens options based on the application
Prismatic Diffuser
Prismatic flat diffuser is made of durable acrylic. The diffusers surface contains several small prisms to help spread the light evenly.
Soft White Diffuser
Soft flat white diffuser is made of durable acrylic. The diffusers surface is smooth and evenly spreads a softer tone of light.
Coverage & Maximum Tube Length
Technical Information
Instructions
Download the instructions for this model, or if you need multiple models go to the Installation Instruction Library page.
Specifications
For multiple models go to the Drawings & Specification Library page.
Why Columbia
Canadian made skylights, designed for our harsh climate
Columbia skylights are specifically designed for life in our Canadian climate. Whether subjected to snow, ice, wind, hail, or intense heat, our products are engineered to outperform these demanding conditions.
Many imported skylights are designed for a more temperate climate and lack the performance and durability. Columbia has spent many decades manufacturing premium quality skylights that have stood up to the test of time in our Canadian climate.
Every aspect of the skylight has been studied, engineered, and tested.
Columbia utilizes the best materials available, including the latest glass technology.
Energy efficiency is a concern for Canadian homeowners because of our extreme climate. Columbia is the only Canadian manufacturer to offer Triple Glazing on all our skylight models, fixed and venting. We offer more ENERGY STAR® glass options than any other manufacturer.
Columbia’s State Of The Art Headquarters & Manufacturing Plant
Columbia is proud to be a long established premier manufacturer of skylights for the North American market and is Canadian owned and operated. With a manufacturing plant and warehouse in Burnaby, British Columbia and a new warehouse in Mississauga Ontario, we are able to supply the roofing industry, contractors, architects, and homeowners across the country with prompt and efficient service.
Our goal is to manufacture skylights made in Canada, that outperform the demands of the harsh Canadian climate for decades to come. As Canada’s leading skylight manufacturer we offer a solution for every residential or commercial application and want to be your one-stop source for all your customer needs – producing a wide range of standard and custom skylights.
If you are seeking the most energy efficient skylights in the Canadian market, Columbia and FAKRO offer the widest selection, superior quality, and design. We sincerely appreciate your past and continued support and look forward to serving you in the future.
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