Branz Skillion Roof Ventilation

In skillion roofs the roof cladding and ceiling run parallel typically within 300 mm of each other.

Branz skillion roof ventilation.

As recommended by branz build 155 vents in skillion roofs. 0 00 free download pdf close description. G2500n vent over fascia vent which allows calculated airflow into the roof cavity vb20 vent vented batten performs two functions. Some roof designs such as skillion roofs must include ventilation to manage roof moisture.

To mitigate the risk of internal moisture both branz and the metal roofing manufacturers association of new zealand highly recommend ventilating skillion roofs. The article vents in skillion roofs in build 155 discussed the placement of vents for skillion roof ventilation in low wind zones. Design and installation of timber shingle and shake roof cladding. The roof space is generally inaccessible with little natural ventilation and the small roof space can accelerate problems with moisture.

Skillion roofs need carefully designed and installed ventilation to reduce the risk of moisture related problems. Recent branz research provides advice on the best place for effective vent openings in low wind zones. 7 3 pink batts skillion roof insulation is designed to be friction fitted between timber roof framing rafters in skillion roofs. Moisture and ventilation in skillion roofs from www branz co nz price.

Passive ventilation specialist vent has developed comprehensive ventilation systems for both mono pitch and pitched skillion roofs. Roof space ventilation in new zealand houses. Roof space ventilation can reduce the risk of these problems. Air pressures on a monopitch skillion roof a with and b without eaves.

It updates and replaces branz bulletin 443 timber shingles and shakes. Funded by branz ministry of science innovation. The four factsheets are. Branz physicists have developed a useful calculation for designers to work out the minimum number and area of vents required in roof spaces.

Roof space ventilation provides air exchange in the spaces above the ceiling insulation and below the roof cladding. Roof ventilation factsheet 4. Products matching skillion roof sort by. Present work is focusing on moisture and ventilation in skillion type residential roofs.