The standard roofing vent design has been around in both metal and plastic for over 40 years and not much has changed in that time. GVRD Roofing Inc always uses the best system for each roof. We install venting as per recommended by the manufacturer. A static vent should be installed every 300 sq feet to give the roof optimum air flow.roof venting vancouver






Airflow streams out of the attic through the bottom of the vent, getting rid of stale, old air from your home.  Sometimes, however, these simple vents would also allow snow to fall straight into the attic.

In places like northern Ontario, where snow is a commodity, these vents don’t provide much in terms of protection from the weather.

So what if we were to make it much more difficult for rain or snow to make it inside your home?

This was the thought process behind the design of our WeatherPRO Baffle System. In this system, air exits out of the top of your vent, instead of from underneath it. A set of inner and outer walls provide high airflow, while deflecting water and snow. The design also includes drainage openings to send water out and then down your rooftop.

This type of baffle system was the first of its kind when it was launched, and we’re now using it in several of our products, such as the WeatherPRO Slantback, the WeatherPRO PRO50 and the WeatherPRO PROTurbo.

Thanks to feedback from contractors, customers and users, the initial design of this patent has changed drastically from when the product first came out. Our vents are now able to provide excellent defense against weather infiltration.

9" Ridge Venting NF

9″ Ridge Venting fire rated

This high-performance ridge vent is designed with an internal weather filter and external baffles and proves that outstanding beauty and performance can be combined. CertainTeed Ridge Vents combined with sufficient intake vents, such as CertainTeed Intake Vent, are the most efficient and effective systems you can install. Benefits Works year-round to ventilate the attic Provides evenly distributed ventilation along the entire underside of the roof Slim design for visual appeal Provides a higher volume of airflow per square foot of attic area than any other fixed-vent system Design maximizes airflow across the entire underside of roof sheathing Changes in wind direction have no significant effect on vent performance.

External wind baffle deflects wind and weather over the vent and creates low pressure above the vent to pull air out of the attic Built-in ventilating weather tight end plug flexes for different roof pitches and protects roof decking Each vent has 16 sq. in. of net free area per linear foot Accommodates roof pitches from 3/12 to 12/12 Louver openings are sized to minimize insect infiltration and windblown debris Internal weather filter reduces infiltration of windblown snow, rain and dust.


roof venting vancouver