Fenesta Windows derive 95% of their strength from reinforcements made of galvanized steel or Aluminum sections. They are used in chambers of the profile to provide the necessary strength to the window members. Separate sealed chambers in profile and zinc coating on steel bestows longevity to the product during its usage period.

The thickness and shape of the section is designed to provide the necessary functional and performance parameters of window. The usual thickness varies between 1.0 mm to 3.0 mm.

The reinforcements are screwed to the UPVC profile at a designed pitch using self drilling special screws. The unification of the duo renders strength to the window.