UPVC Window Rubber Seal is something that is installed in your window frame to prevent draughts and water from entering your home. It is used to weather-seal the opening sash to the window frame. Furthermore, pests prefer creeping through window gaps to enter your home. Once you are limiting the dust and allergens entering limit the amount of dust and allergens that enter your home. It is constructed of rubber and is fitted along the margins of stationary windows such as agricultural, forestry, and mining equipment windshields.