Roofing Contractors: Keep Snow Out of Your Customers' Attics with SNOWVENTCO Smart Vents

roofers installing shingles and vents on a roof

As a roofing contractor, you know how important it is to provide your customers with the best possible products and services. That's why you should consider switching to SNOWVENTCO Snow Vents for your attic ventilation needs.

Designed to Prevent Snow Infiltration

One of the main concerns during snowstorms is the infiltration of snow into attics through roof vents which can cause significant damage to the attic and the home's interior. As a company specializing in roof ventilation solutions, we understand the importance of preventing snow and rain from entering the attic during severe storm conditions, as well as the health and legal issues that can arise from mold growth. SNOWVENTCO Snow Vents feature a unique, pleated 120 micron mesh filter that effectively blocks out snow, rain, and other unwanted elements from entering the attic space.

"Rainstorms come and go but blowing snow lasts all winter. In the snow belt, we also need a snow vent." - Bill Chislett, Roofing Contractor

Built to Last

The SNOWVENTCO Smart Filter is engineered not to clog, ensuring efficient and long-lasting performance. The filter is made of micropore stainless steel with thousands of 120-micron holes that are designed to last. The steel screen has a porcelain-like smoothness that helps prevent snow and dirt from blocking the vent, as warm air from the attic continuously cleans the filter.

Exceeding Standards

SNOWVENTCO Snow Vents exceed CSA requirements, providing over 80 square inches of open airspace for a 50 square inch vent. This ensures strong attic airflow while completely blocking unwanted elements from entering the attic space.

Efficient Installation

SNOWVENTCO Snow Vents are designed for efficient and effective installation by professional roofing contractors. With their advanced features and easy installation process, you can provide your customers with optimal attic ventilation and protection against snow and other elements.

The Next Generation of Attic Ventilation

If you want to provide your customers with superior attic ventilation and protection against snow infiltration, look no further than SNOWVENTCO Snow Vents. With the advanced features of the SNOWVENTCO Smart Filter, these vents provide exceptional performance that lasts. Additionally, the CSA approval ensures compliance with industry standards, giving you peace of mind that you're providing your customers with the best possible product.

Make the switch to SNOWVENTCO Snow Vents today and provide your customers with the latest technology for efficient, long-lasting performance and protection against snow infiltration.


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Chislett Roofing has been in business for over 40 years and we shingle over 4,000 homes each year in Ontario. In the winter, constantly blowing snow through roof vents can be a real problem in our area. We have used SNOWVENTCO roof vents for years and their snowproof stainless steel filter is a great solution. These vents are a little more expensive, but leaking vents silently destroy attic insulation. Today over 90% of our installs use only SNOWVENTCO.

Bill Chislett

Chislett Roofing

Newmarket, Ontario

About time someone made a vent that does what it's meant to all year round!!! Good vent - will use on all my own roofing jobs.

Krzysztof Wolf


Toronto, Ontario

The roof vents in today's market are very low quality, have a short life span and a high tendency to fail. This leaves homeowners with multiple problems including bugs/wasps, mould, overheated roofs and, most of all, water damage caused from leaking and major snow intake. When I first saw the new SNOWVENTCO Roofers' Vent I immediately liked its sleek look as well as its craftsmanship and durability. I would recommend this vent to anyone without hesitation. It's by far the most state of the art roof vent available today.

Dave Flynn


Brighton, Ontario

I have not had a good product available to stop the snow from being blown into an attic during a windy snow storm, UNTIL NOW! The SNOWVENTCO Roof Vent will be the ONLY vent I recommend for use on any roof in any location that ever gets snow! A journeyman roofer from Germany taught me the roofing trade, but was always looking for a good vent that would keep snow out. Now we have a good vent, one that really works, available for our customers.

Francis E. Harris

Roofing Company Owner

Calgary, Alberta


snowventco upper roof exhaust vent in black polypropylene

Upper Roof Exhaust Vent

Install near roof peak to allow warm air to escape. Blocks 99% of snow, diverts rain.

Lower Roof Intake Vent

Suitable for use in place of soffit vents. Blocks 99% of snow, effectively diverts rain.

Skylite Exhaust Vent

Perfect for sheds and garages to allow light in while keeping moisture out.

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Frequently Asked Questions

Why do I need roof vents?
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Roof vents are necessary in order to improve the ventilation in your attic. Adequate ventilation helps to remove excess heat and moisture from your attic, which can prolong the life of your roof and prevent damage to your attic and the rest of your home. Additionally, proper ventilation can help to prevent the growth of mold and mildew, which can be a health hazard.

What is the best roof ventilation system?
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There is no one "best" roof ventilation system as the appropriate system will depend on the specific needs of your home and roof. Roof vents are generally divided into active or passive systems with each system having its pros and cons.

How many roof vents do I need?
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The number of roof vents you need will depend on the size and layout of your attic. A general rule of thumb is to have 1 square foot (144 square inches) of vent area for every 150 square feet of attic space. For example, if your attic is 900 square feet, you would need 864 square inches (6 square feet X 144) of vent area. Additionally, it's important to make sure that your vents are properly placed and balanced, with an equal amount of intake and exhaust vents. This will ensure that air is flowing effectively through your attic and not creating pressure that could cause leaks or damage to the roof. Try our roof vent calculator to find the right amount of vents for your roof.

How Do I Install SNOWVENTCO vents?
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Installing roof vents can be a complex task that requires a certain level of skill and experience. It is recommended that you hire a professional roofing contractor to install your vents, as they will have the knowledge and tools necessary to do the job safely and correctly. However, if you're determined to install them yourself, take a look at our installation video for a step by step demonstration.

Can Raccoons, squirrels, or other rodents chew through the vent and gain entrance into my attic?
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No, determined vermin will have a difficult time chewing through the heavy duty plastic outer shell which is much thicker than typical roof vents. If they are able to chew through the plastic they will not be able to get through the stainless steel filter. This will restrict attic access through the vent openings.

Can roof vents breathe under snow?
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Roof vents can breathe under snow, but it depends on the amount of snow and the type of vent. SNOWVENTCO vents have been tested to allow for airflow even under heavy snowfall conditions. See the link below for video proof.

Will SNOWVENTCO vents perform well under high wind conditions?
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Yes, the low profile and aerodynamic design of SNOWVENTCO vents combined with heavy duty polymer outer shell mean the SNOWVENTCO vents are very resistant to high winds. Our vents have undergone testing showing that they prevent over 99% of rain, snow, and other particle penetration of attic in CAT 3 hurricane wind conditions. They are also durable enough to stay intact when faced with 120 mph winds.

Still have questions?

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Keep Your Attic Dry

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