Flat Roof Ventilation Systems

The keepa attic vent is used for ventilating attics and or plenum as a roof exhaust vent or as an air intake roof vent.

Flat roof ventilation systems.

Residential homes with flat roof vents make use of the boot vent. See the benefits of attic ventilation a new roof is more than just shingles. The keepa attic vent is built exclusively for flat roof ventilation roof pitch is 2 12 or less. All things being equal wind driven turbine vents also known as a whirlybird roof vent do move more air than flat vents but only when the wind blows.

Flat roofs are hard to replace. Removal of excess heat and moisture will help the life of the roof and will help the functionality and efficiency of the hvac systems. Flat roof vents have no moving parts to break or squeak but don t vent as much air as wind driven vents. Flat roof ventilation is achieved by creating air changes to the attic or plenum.

The rubber boot conforms to the exact size and shape of the pipe to keep water from leaking in. The aluminum base holds the vent in place with built in flashing. A cold roof or hot roof. Flat roof ventilation allows for the circulation of air in the property particularly for warmer rooms in residential buildings.

It alleviates moisture in the winter and heat in the summer to extend roof membrane life. Roofing and attic ventilation systems are designed to work year round to balance the intake of cool air and the outflow of warm air in the home. This could mean flat roofs may not raise the same red flags they used to. Ventilation is crucial to these areas as they affect the building as a whole both inside and out.

Effective attic ventilation systems reduce damaging heat and moisture in your attic promote energy efficiency by helping to reduce the load on your air conditioner in the summer and also reduce the risk of ice dam formation on your roof. No matter what month it is hot air will accumulate in the attic at the peak of the roof. How much ventilation does a flat roof need. There are two types of flat roof systems warm and cold roofs which affect the positioning of the ventilation.

Some observers suggest it s harder to replace a flat roof than a traditional pitched shingle roof because of the labor required to remove its layers especially on older flat roofs. Big organizations like the forest products laboratory and even the american society of heating refrigerating air conditioning engineers realized that poor roof ventilation systems could cause condensation problems in a. The answer depends on the type of roof you have. In summer and warmer months outside temperatures intensify the effects of this heated air.

Roof ventilation is not a new process by any means. This is a basic venting system that simply acts as a base and holder for piping that is coming through the roof. But now flat roofs often are constructed with fewer layers because of improved waterproofing technology. When thermal insulation is placed below the deck the ventilation must also be on the underside.