Flat Roof Ventilation

The vent cap is a manufactured one piece spun round.

Flat roof ventilation.

Collar height square flange and an inner louver wildlife guard. There are two types of flat roof systems warm and cold roofs which affect the positioning of the ventilation. Choose one of the following products to meet the recommended exhaust nfva of 528 square inches. A cold roof or hot roof.

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. See the benefits of attic ventilation a new roof is more than just shingles. It depends on where the insulation is installed. Hot roofs have the roof deck then insulation then the roofing material.

Flat roof vents have no moving parts to break or squeak but don t vent as much air as wind driven vents. The answer depends on the type of roof you have. Residential homes with flat roof vents make use of the boot vent. 27 lineal feet required.

The keepa vent is best used for flat roof attic spaces as an exhaust roof vent or fresh air supply intake roof vent. Flat roof ventilation is a niche that active ventilation products avp has supported and supplied for many years. Flat roof ventilation is achieved by creating air changes to the attic or plenum. This is a basic venting system that simply acts as a base and holder for piping that is coming through the roof.

Ventsure 4 foot strip heat moisture ridge vent. The rubber boot conforms to the exact size and shape of the pipe to keep water from leaking in. Ventsure 4 foot strip heat moisture ridge vent with weather protector moisture barrier. Avp ensures that its roof vents and roof accessories install easily on membrane roofs and once installed can add years of life to a roof membrane.

Avp s flat roof vents are manufactured specifically for flat roof ventilation. Removal of excess heat and moisture will help the life of the roof and will help the functionality and efficiency of the hvac systems. How much ventilation does a flat roof need. 2011 code of practice for control of condensation in buildings stipulates that there should be a ventilation gap between the insulation and the bottom of the flat roof deck of at least 50mm.

When thermal insulation is placed below the deck the ventilation must. 4 boot vent. Ventilation for cold roofs. Made of corrosion resistant aluminum the keepa vent has a round concentric vent cap and standard 11 in.

Ventilation is crucial to these areas as they affect the building as a whole both inside and out. What is flat roof ventilation.