|
All tests were performed on a hermetically sealed test model, according to the specifications of the test equipment. Each vent was mounted over a 91” long by 2” wide exhaust slot on the ridge of the roof model, and sealed top and bottom (closed cell foam strip) so the airflow measured was through the ventilation openings in each test vent. The Duct Blaster test components meet the flow calibration specifications of both the CGSB Standard 149.10-M86 and ASTM Standard E779-87. The Minneapolis Duct Blaster has a fan flow accuracy of +/- 3 percent using the Energy Conservatory Digital Manometer (DG-3). Note: The 5 pascal pressure utilized was chosen because it is one of the smallest units of pressure that is commonly used for airflow / pressure measurements. As an example, 5 Pascals = 0.0014765 inches of mercury, or 0.000725 pounds per square inch of air pressure. This is similar to the low wind speed and pressure typically found in an attic roof cavity on a calm day. |
|

Note: these tests, measurements, and calculations were performed using the Energy Conservatory Minneapolis Duct Blaster (Series B) fan assembly, in conjunction with the Minneapolis pressure and fan flow gauge (Digital Manometer Model DG-3).
Introducing the new Siding Vent System, featuring Sturdi-Strips plastic furring strips.
Cor-A-Vent's new "green" 20-foot roll vent made from 100% recycled plastic.
Information about using rainscreens in British Columbia, Canada.
COR-A-VENT is proud to introduce Revolution Rolled Ridge Vent, a 20-foot long power-nailable ridge vent made from 100% pre-consumer recycled polypropylene plastic. Go to: www.revolutionvent.com for more information.
Check out the new S-400TAN color on Cor-A-Vent News & Views. Read on down for more of the latest from Cor-A-Vent.
Cor-A-Vent's new Enhanced Siding Vents provide a superior and cost-effective rainscreen system behind wood or fiber cement siding to add life to your home's exterior. Read more about how our Siding Vents beat the competition.
Cor-A-Vent continues its tradition of being the Leader in Innovative Rooftop Ventilation with the latest addition to its extensive roofing and siding ventilation product lineup, the NEW Roof-2-Wall Vent.
For complete installation instructions or to download our Roof-2-Wall Vent brochure, click over to the Roof-2-Wall Vent Website - or call us at (800) 837-8368.
Cor-A-Vent's newest product is IN-Vent, a continuous on-the-rooftop intake vent that lets fresh air in when soffits are out. The IN-Vent has the highest NFVA on the market - see how IN-Vent stacks up with the competition. IN-Vent is also an ideal solution for strict new building codes in California.