Wood has in the past been the main material used in the construction of fastenings.  The maintenance necessary to preserve it as new, however, has been the cause of a reduction in use for commercial and industrial buildings.

Painting methods used today have improved the durability of finish, which will still be maintained and restored, but less frequently than in the past.
Wood is still the indispensable solution for homes with special requirements, where aluminium is impracticable even in wood stained finishings.
Apar uses high quality wood, able to guarantee top durability and isolation.  For this reason Apar relies only on qualified suppliers such as Navello, present on the market from 1824 or on Sudtirol Fenster according to customers’ requirements.