Nyxon together with all products necessary for the warm installation of windows constitute a coherent system characterized by very favorable properties. By using appropriate complementary products, window bar and HS and L-type are well mounted easily and quickly. They enable the installation of joinery in the wall a stable and guarantee high quality of assembly. The surface is made of Nyxon panel of base and hard extruded XPS, which is a very durable and well insulating support for all types of joinery. The Nyxon panel of base allows the regulation of the size hole.