Double Glazed Units Replacement
Glass is a good insulator but it would need to be very thick as a single pane in a window to have much effect. So rather than have thick glass in your windows it is better to have two panes of glass with an air or gas space between them. The bigger the air space, the less heat is lost, up to an optimum of 20mm.
What are the benefits of having Double Glazed Units?
- Heat loss through single glazing will be at least halved with double glazed units
- Draughts through windows caused by sinking cooled air will be less with double glazed units
- Rooms will be warmer with double glazed units Outside noise can be reduced with double glazed units
- Condensation can be reduced with double glazed units
- Increases the saleability of the property with double glazed units
- Savings on fuel bills with double glazed units
- Ordinary glass – called Annealed or Float glass
- Safety Glass – This can be either Toughened, Laminated, Safety Wired Glass or Annealed glass with safety film applied to it.
- Safety glazing is mandatory for new installations within 800mm of the floor in windows and partitions, and within 1500mm of the floor in doors and side panels. Glazing is marked in the corner with BS6206.
- Security Glass- Laminated glass or Annealed glass with film applied to it.
- When security glass is installed you must ensure there is an emergency escape route in case of fire.
- Low Emissivity glass or Low E glass- The glass must be used in a double glazed window so that the special reflective coating, which is always placed inside the cavity, is protected from any damage
- Decorative glass – This can be Opaque, patterned, Stained, Sandblasted or Etched.
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