The Bronzo 5000/S Impero system is made with a special brass alloy, also known as “building bronze” which does not require any surface protection or maintenance.
The patina that forms naturally constitutes the best and most lasting protective screen and guarantees the longevity of the window.
Burnishing: The burnishing treatment performed after the welding of the frames accelerates this natural process, forming a patina that can be uniform or aged with an antique bronze effect.
Copper plating: The copper plating treatment, performed after the welding of the frames by applying a special product on the surface of the profile, reacts on the copper part of the alloy, producing the verdigris aging effect typical of statues exposed for a long time outdoors or copper roofs of historical monuments.
Softwood: Uf = 1.4 W/m²K
Hardwood: Uf = 1.6 W/m²K