Passive Roof Ventilation Systems

Passive ventilation is the process of supplying air to and removing air from an indoor space without using mechanical systems it refers to the flow of external air to an indoor space as a result of pressure differences arising from natural forces.

Passive roof ventilation systems.

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. Whilst it is possible to retrofit passive ventilation solutions to existing buildings it is highly recommended to incorporate passive ventilation during the design phase of any new building project. A roofing contractor can install four different kinds of roof vents that all fall into one of the two categories.

Established in 2010 blue building solutions ltd trading as vent is the specialist in the supply of passive ventilation systems and products. A home s ventilation system consists of everything from roof vents to the best attic fans without the right roofing and attic ventilation system your home can become uncomfortable and cost more to cool or heat. There are two basic categories of roof vents including passive and powered. Roof ventilation is not a new process by any means.

There are two types of natural ventilation occurring in buildings. Roof vents enhance the overall comfort of the house by providing escape hatches for hot. 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. The early to mid 20th century saw the development of this concept.

Referred to as passive ventilation is the most common way to vent an attic. Passive roof vents expel excess heat and moisture. Wind driven ventilation and buoyancy driven ventilation. Proper ventilation at the roof is important to a complete attic ventilation system as well as to the structural integrity of the roof.

The key is to balance incoming air with outgoing and perform an annual maintenance checkup. Achieving calculated continuous and unimpeded airflow through the roof cavity is relatively straight forward. Our systems are structured and specifically tailored for new zealand buildings and the extreme climatic conditions. Passive roof vents encourage natural air flow and work without the aid of motorized fans.