Passive Attic Ventilation System

The key is to balance incoming air with outgoing and perform an annual maintenance checkup.

Passive attic ventilation system.

More product details close. Attic power ventilators are mounted to the roof of the home and are connected electronically to a power source and in most cases the home s thermostat. In order to facilitate this exchange of warm and cool air the general rule of. Roof turbines have blades that spin in the wind pulling air up through the intake vents into the attic and out of the house.

To understand how proper ventilation works here s the anatomy of a basic passive pole barn ventilation system. Roof vents enhance the overall comfort of the house by providing escape hatches for hot stale moist air which can reach temperatures of 150 degrees in summer. Gable vents are a type of louvered vent that can act as an intake or exhaust vent depending on which way the wind is blowing. The process starts with warm moist air rising inside your pole barn.

Roof ventilation is not a new process by any means. The early to mid 20th century saw the development of this concept. When spaced evenly across the roof roof turbines can provide passive exhaust on windless days. 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.

In the case of a lined building with a ceiling air is rising in the building s attic. Passive roof vents encourage natural air flow and work without the aid of motorized fans. Renewaire energy recovery ventilators ervs can be applied everywhere across all commercial educational institutional light industrial and residential buildings. Owens corning recommends a balanced ventilation system based on the u s.

Taking advantage of this natural process referred to as passive ventilation is the most common way to vent an attic. Static roof vents also known as roof louvers are designed to fit into the highest peaks of a roof and rely on wind to function. While a simple vent is sometimes used to allow for the passive flow of air it s also possible to add a powered attic fan commonly called an attic power ventilator. Natural airflow wind and the temperature differences in indoor and outdoor air help to draw in fresh air and circulate it through the home.

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. Out with the moist stale air. Passive ventilation systems use a series of vents in exterior walls or at exterior windows to allow outdoor air to enter the home in a controlled way.