The lack of passive ventilation causes condensation to occur.
Passive roof vents nz.
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.
Established in 2010 blue building solutions ltd trading as vent is the specialist in the supply of passive ventilation systems and products.
Our systems are structured and specifically tailored for new zealand buildings and the extreme climatic conditions.
The vent ridge vent is designed to release warm air from the roof void using the natural convection of rising warm air or by means of negative pressure created by wind blowing over the roof.
Our systems are structured and specifically tailored for new zealand buildings and the extreme climatic conditions.
Established in 2010 blue building solutions ltd trading as vent is the specialist in the supply of passive ventilation systems and products.
Questions around the need for passive ventilation elements to give new zealand roof cavities a breath of fresh air have been investi gated by branz researchers since at least 1988.
Extra ventilation not favoured in past back then a scientific article concluded that additional roof ventilation has been found to be of no assistance.
The rv10p has an adhesive and flexible aluminium flashing which is designed to form to roofing profiles and prevent water ingress on any pitch roof.
Recent research shows that internal moisture condensation in the roof space is a widespread and growing problem across new zealand.
Weather tightness requirements have been specified for many decades without the required ventilation.
Extra ventilation not favoured in past back then a scientific article concluded that additional roof ventilation has been found to be of no assistance.