We sandwich a gasket between the wooden frame and the window, which reduce noise and does not allow weather passing into the inside of premises. The gasket is resistant to temperature effect, long-term pressure deformation, ultraviolet rays, and mechanical effect. According to the customer requirements we use silicone (black, white, transparent) or gaskets (black) for unit sealing. They ensure frames sealing, protect them from rainfall, reduce heat and sound permeability.