What are the different jointing systems available?

Fully Mechanical Joints (just like Timber), TimberWeld (Timberweld® is a unique, patented method of joining PVCU windows together. The result is a perfect “wooden, butt-joint”, as if it were a mortice and tenon joint, what’s more, the effect is visible on both the outside and inside faces of the window. Welded joint which has superb technical performance, strength and above all, beautiful aesthetics. Graf weld or Seamless weld (where the diagonal weld is less visible).