High Wind Roof Vent Caps

Minimizing water intrusion through roof vents in high wind regions 4 of 8 r 7 oofing 12 10 wind driven rain penetration.

High wind roof vent caps.

Designed for 3 and 4 ductwork these roof cap vent kits help vent heat moisture and odors from bathrooms showers and recreation rooms. Newer vent caps will be somewhat enclosed at the top which will help to prevent water and pest intrusion. Vertical vents were a source of whistles and banging flappers. Also these designs won t allow the cap to collapse and block the vent.

Heatsource minister of fire. Currently there is no ade quate standard test method to evaluate the potential for wind driven rain to enter attics through soffit vent openings such as those shown in figure 6. I need to know what would be the best termination cap for very high wind area. This design also helps to prevent wind from causing gas appliances to backdraft.

Your feed back will be most welcome thank you. Dec 19 2011 1 064 northern ca. Not recommended for dryer venting. Keep in mind that wind blowing across a vent opening creates a vacuum the faster things blow thus creating flap rattles as the wind gusts.

Each features a black steel roof cap with a built in back draft damper and bird screen. Sometimes altering the cap on the vent reduces the vacuum. Round gas vent collection aluminum high wind cap with 4 inch inner diameter this aluminum high wind cap with 4 inch inner diameter from the round gas vent series is a type b gas component and consists of the duralock system for a tight seal. The gas vent is on the south side of our home and when the winds come from that direction the stove goes crazy.

Use for vertical terminations only. Two nylon zip ties are included.