Flat Roof Edge Ventilation

Flat roof ventilation allows for the circulation of air in the property particularly for warmer rooms in residential buildings.

Flat roof edge ventilation. There are two types of flat roof systems warm and cold roofs which affect the positioning of the ventilation. A drip edge vent is made of a corrosive resistant material that sticks out about three inches back from the roof edge and then bends downward over them. Hot roofs have the roof deck then insulation then the roofing material. An airspace is left above the ceiling insulation and below the under side of the roof decking and the roof is vented either around its perimeter with soffit vents a flat roof or the roof may be include intake venting at its lower edge through a soffit and outlet venting through a half ridge vent or similar outlet vent along the roof s uppermost edge a low sloped roof.

It depends on where the insulation is installed. The shape of the roof impacts how much air comes through the system which means this vent must always be placed at the peak of the roof along your ridges. Removal of excess heat and moisture will help the life of the roof and will help the functionality and efficiency of the hvac systems. Ventilation is crucial to these areas as they affect the building as a whole both inside and out.

It s a shingle over rooftop installed intake vent that keeps the roofing contractor on the roof and it can be used on any home with or without overhangs. A cold roof or hot roof. How much ventilation does a flat roof need. Flat roof ventilation is achieved by creating air changes to the attic or plenum.

It can be used to supplement existing soffit or undereave vents as well. If your home has a flat roof then you will not benefit from the use of a roof ridge vent. When thermal insulation is placed below the deck the ventilation must also be on the underside. That s the beauty of the edge vent.

It s a roof top installed shingle over intake vent designed based on roofing contractor feedback from our ask the expert seminars. Drip edge vents are a two in one installation that promote water shedding at the eaves and rakes of a roof while also allowing for ventilation into the attic. This product works best on homes with a slanted pitch to the roof but not too steep of course. Maybe it s because the contractor doesn t want to hassle working overhead cutting into the soffit eaves.

The answer depends on the type of roof you have. See the benefits of attic ventilation a new roof is more than just shingles. Any type of roof from tpo to epdm can be either hot or cold. Intake vents such as soffits are placed lower on the roof usually under the eaves.

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.