Timber Cladding: Support and Moisture control

The problem with moisture


• A ventilated cavity behind the cladding prevents the ingress of moisture into the wall fabric

• But some moisture can be driven into the cavity, and sometimes accross it

• Introducing ventilation to the cavity largely eliminates the problem

• The free flow of air from the bottom to the top of the cavity should not be interrupted

• The design of the cladding support structure should expedite ventilation


Support for horizontal and vertical cladding formats to ensure air flow

air flow in cavities behind cladding

Example of a wall element before application of cladding


Horizontal cladding and support


Vertical cladding and support


Vertical board-on-board cladding and support


Horizontal cladding fixed to impregnated wood-fibre insulation