It is a common premise of modern engineering that it is far more beneficial to work with nature than try to resist its influences. However, the traditional solution to keeping rainwater out of buildings has been to use the latter concept and provide walls that are fully sealed against the weather by the use of barriers, joints and sealants. Unfortunately the failure of such walls due to material degredation, poor workmanship and unexpected building movements has been far too common an occurrence. Rainscreen overcladding offers a solution that utilises the effects of the wind to control rainwater and prevent it entering the building.

The modern concept of rainscreen overcladding was developed in Scandinavia during the 1940’s and came into widespread use in Europe and Canada in the 1970’s.  It is not a new concept and many years of experience have been gained in the development of the relatively easily installed lightweight systems currently available.

Overcladding offers a relatively simple solution to the problem of keeping rainwater out of buildings and although there are several variations, the principle concepts are -

• The careful design of ventilated cavities that use the pressure effects of the wind to dissipate energy of driven rainwater
• Properly designed drainage paths that collect and direct the water away from the cavity

The concept of overcladding is simple, but to be successful it is essential that a detailed knowledge of the physical principles and materials involved be incorporated into the design details.

 RenoBuild have these qualities and the national and international contacts to offer you the perfect solution to complete your external facade.

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