It necessary to have fire protection in façades in the first place including the cavity and chimney effect!

Typically, there are two methods of handling façade waterproofing, face sealed and rainscreen.. In the case of a face sealed façade, it depends on 100% of the rainwater has to be shed. 

A rainscreen façade is a kind of two-stage construction; the inner wall is a load-bearing insulated wall that is protected by an outer skin. The outer skin protects against rain and moisture and maintaining a space between the cladding and building wall prevents water from infiltrating the building structure.

The key features of a rainscreen façade are its:

1.Outer cladding

2.Cavity

3.Air/water barrier

But Why Rainscreen? There are several benefits of using a rainscreen façade over face seal systems:

1.Superior Waterproofing

2.Thermal efficiency

3.Condensation control

4.Long-term durability

While designing and implementing rainscreen/ ventilated façade, we must adopt a holistic approach. Poorly designed and poorly installed rainscreen façade without any cavity barriers become a disaster in case of a fire event.

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