CEMBRIT – Ventilated Façade System
An important feature of Cembrit façade panels is that it is designed as a ventilated façade system, therefore an air gap between the framing and the panel is required.
A self-ventilating façade is a common practice which helps minimise temperature variations in the wall throughout the year.
Sunlight and heat are reflected away in the summer, and insulation behind the façade panels reduces heat loss in lower temperatures. At the same time, the natural ventilation
passing through the Cembrit façade system helps to minimise condensation.
The natural ventilation works by means of a chimney effect. The air enters at the bottom of the structure and on its way up through the façade takes moisture-laden air through the
ventilation openings at the top of the structure or through window and door openings. To ensure vermin or birds do not enter the cavity, perforated profiles are required at all openings.
Ventilation & Cavities
As with all self-ventilating facades, moisture is likely to pass behind the panel. To ensure moisture is effectively drained away, a minimum amount of free space (cavity space) is required between the structure and panel.
For low rise buildings the minimum cavity space needs to be at least 35mm directly behind the back of the façade panel. As the facade gets higher the cavity also needs to increase.
Cavity widths will be influenced by the height of the building.
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Contact Trumark Group here or on 1300 00 50 52 for more ventilated façade & cavity advice for your project.