To solve the problem with poor energy efficiency of the alu clad windows Idealcombi introduced the aluminium and wood composite windows.
The composite thermal break between the timber frame and the external aluminium profile significantly increased the thermal performance of the windows, whilst maintaining a non perishable frame rebate.
Combined with a triple glazed pane the composite window became a true energy window.
The external aluminium profile and the composite thermal break meant the timber was well protected against rot. Water was drained away through draining holes and channels within the aluminium/composite profile.
Over the years lack of maintenance of the composite windows meant that dirt and dead insects in some cases could block the drain holes, causing water to find its way to the timber frame and cause problems.
