Roof Vents For Metal Roofs Nz

Air pressures on a monopitch skillion roof a with and b without eaves.

Roof vents for metal roofs nz. As water vapour is lighter than air we vent at highest point on the roof and the efficiency of a ridge vent depends on wind velocity and direction. It was the first steel roofing tile in the world invented in 1957 right here in new zealand. Check out our range of roof ventilation products at your local bunnings warehouse. Profiled metal roofs may need replacing for a variety of reasons including cladding failure due to corrosion leaks due to poor initial design or installation damage caused by wind or falling trees the need to match an older roof to a newer addition or imply a desire to change the appearance of the roof.

The nzmrm cop attic space ventilation recommendations are made for impermeable metal roofs recognising that nz has a greater problem of water vapour because of our high humidity and permeable ceilings. Request a quote. In skillion roofs the roof cladding and ceiling run parallel typically within 300 mm of each other. To mitigate the risk of internal moisture both branz and the metal roofing manufacturers association of new zealand highly recommend ventilating skillion roofs.

Spinaway aluminium domestic turbine roof ventilators exhaust the hot air that becomes trapped in the space between the ceiling and roof. Passive ventilation specialist vent has developed comprehensive ventilation systems for both mono pitch and pitched skillion roofs. Light weight durable and quick to install lou fisher s innovative roof system would soon become known as gerard roofs and an international success story. Bringing new zealand the best in steel metal roofing cladding and fencing materials.

Visit us today for the widest range of ventilation products. This prevents heat radiation into rooms and helps lower inside temperatures and moisture. Recent branz research provides advice on the best place for effective vent openings in low wind zones. Some roof designs such as skillion roofs must include ventilation to manage roof moisture.

The roof space is generally inaccessible with little natural ventilation and the small roof space can accelerate problems with moisture.