Rainscreen Cladding is used to protect the fabric of a building whilst giving it a decorative finish. This type of cladding has grown in popularity due to its high performance and virtually maintenance free decorative surface. A special characteristic of the rear ventilated cladding system is its guaranteed performance. System effectiveness is maintained even when unfavourable internal or external atmospheric conditions are experienced.

The rainscreen principle theorizes that the equilibrium of air pressure between the outside and inside of the "rainscreen" prevents water penetration into the building itself.

The majority of the water is deflected off the outside face of the cladding panel. Any water that may have penetrated during the rain fall is removed by drainage. As the rainscreen system is pressurized and the joints are slightly open, pressure equalization in wind blown driving rain is immediate. Pressure inside the internal void is equal to the pressure outside; therefore, rain does not have a tendency to enter the cavity.

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