Dormer Roof Ventilation

Always have a balanced ventilation system.

Dormer roof ventilation.

Let owens corning roofing help you calculate exactly how much ventilation you will need for a healthy and balanced attic with our 4 step ventilation calculator. The fan is constructed from 23 gauge galvanized steel for added strength and durability and it utilizes a unique black dome cover which provides uv protection. Advanced fire protection the brandguard advantage ventilation products perform a vital function to improve the energy efficiency of your home. Brandguard vents are easy to install retrofit and paint.

Federal housing authority recommends a minimum of at least 1 square foot of attic ventilation evenly split between intake and exhaust for every 300 square feet of attic floor space. Hot air exhaust vents located at the peak of the roof allow hot air to escape. Calculate or enter the square footage of the attic or area to be vented. Brandguard vents patented design ventilation products exceed the standards with a complete line of vents that are approved for use in very high fire threat zones.

Roof to wall waterproofing products deck flashing diatto scuppers l metal umbrella flashing pitch pan vapor vents ventilation products dormers gravity vents air intakes roof jacks wall caps louvers access louvers california air vent utility vents vertical dryer vent dryer vent t tops pipe flashing decorative sheet metal finials. That is openings doors windows and louvers to the outside should create a. Broan s 355bk gable mount attic ventilator is a high quality ventilation system that s roof mounted and features a cover. In no case should the amount of exhaust ventilation exceed the amount of intake ventilation.

In a hot climate the primary purpose of ventilation is to expel solar heated hot air from the attic or roof to reduce the building s cooling load and to relieve the strain on air conditioning systems. Intake vents located at the lowest part of the roof under the eaves allow cool air to enter the attic. In mixed climates ventilation serves either role depending on the season.