This includes residential properties but they are mostly used on commercial and industrial buildings.
Roof ventilation nz.
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.
The building roof ventilation systems we supply in new zealand are suitable for any type of building.
With a series of tried and tested ventilation systems for both skillion and trussed roofs vent is a leader in passive ventilation in new zealand.
Vent skillion mono pitch roof ventilation system vent skillion pitched roof ventilation system.
The roof space is generally inaccessible with little natural ventilation and the small roof space can accelerate problems with moisture.
Positive pressure also known as forced air ventilation systems work by blowing drier air into your house from the roof space above the ceiling or in some types from outside.
Skillion roofs need carefully designed and installed ventilation to reduce the risk of moisture related problems.
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.
Vented batten vb20 vented batten for roof and wall.
Roof ventilation achieving calculated continuous and unimpeded airflow through the roof cavity is relatively straight forward.
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.
Read more about their passive ventilation systems here or take a look at their catalogue here.
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.
They suit older houses with wooden joinery better than modern houses with sealed aluminium joinery unless windows are opened or additional vents fitted.
Vent is the leading new zealand 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 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.