Rain Screen Cladding Facade system

A rain screen system consists of an outer panel , a ventilated cavity & an inner leaf

• Definition : Rain screen cladding facade system is a form of double-wall construction that uses an outer layer to keep out the rain & an inner layer to provide thermal insulation , prevent excessive air leakage & carry wind loading .
• The outer layer breathes like a skin while the inner layer reduces energy losses . The structural frame of the building is kept absoluitely dry , as water never reaches it or the thermal insulation .

Comfort

• Rain screen cladding is designed to breathe . Penetration of rain is minimized & condensation is ventilated .
• The ventilated air space serves multiple functions . The air in the designed cavity will circulate due to air pressure differentiuals & thermal differentials over the height of the building .
• In a cold climate , this causes the condensation at the rear of the cladding to dry .
• In a warm climate , the moving air will cool the inner layers of the construction , thus reducing the demand for cooling energy .

Water is efficiently removed : the majority of water is deflected off the outside face - any penetrating water disposed of through drainage
The rain screen cladding system is able to prevent internal condensation & thermal bridging .

Convenience

•  Rain screen cladding has a space between the cladding & the outer wall 0 an ideal location for insulation materials .
• Rainw ater & condensation are removed naturally by air flowing throught he cavity - so that the insulation material remains in good condition & remains effective over time .
• Ventilation cavity also prevents condensation on the walls of the structure thus reduce the regular maintenance to the system .

Energy savings

• Rain screens can mean lower running costs due to greaty improved thermal insulation
• There is reduced risk of condensation due to elimination of cold bridges & the panels can easily be removed for monitoring of structure .
• The system also preserves the appearance of exterior walls & reduce maintenance costs .