The Zero Stress Guide to Double Glazing

 
 

What You Need To Know Before You Buy Double Glazing Windows

 
     
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Benefits of double glazing

  • Safety
  • Security
  • Energy conservation

Whatever your particular reason for wanting to install double glazing you will enjoy the following benefits:

Safety
Traditional single pane windows are made from a single sheet of regular glass. When this is hit it is likely to shatter into long, sharp, dangerous shards. Double glazing, on the other hand, offers a greater degree of safety on breaking – a fact that is especially important for families with young children.

It is possible to further improve the safety of the double glazing by using security glass, toughened glass or shatterproof glass. Indeed, UK law on low-level glazing applications in so-called ‘critical locations’ stipulates this. The legal requirements (BS 6206) apply to all domestic glazing installations whether new build, replacement or refurbishment. Such critical locations include:

  • Doors – any glazing or part of glazing in a door, which is between the finished floor level and a height of 1500mm above the floor level
  • Side panels to doors – and glazing or part of glazing, which is within 300mm of either side of a door edge and which is between the finished floor level and a height of 1500mm above the floor level
  • Windows, partitions and walls – any glazing or part of glazing, which is between the finished floor level and a height of 800mm above the floor level

glazing units

In the above Diagram only glazing units Nos. 1, 4 and 8 fall wholly outside the 'critical location' and need not comply with BS 6206.

Energy conservation – modern homes can lose as much as 25% of their heat through the windows. The installation of low-emissivity glass (Low-E) allows the sun's heat and light to pass through the glass into the building, but blocks heat from leaving the room, thereby considerably reducing heat loss. This not only leads to savings on energy bills but also to maintaining a higher temperature within the home. Sitting by a large, double-glazed picture window is a great deal more comfortable on a cold winter night.

Double glazing can drastically change the appearance of the home but it doesn’t have to spoil it. If you are involved in a restoration, a good, reputable contractor will work with you to find a product that will complement and enhance the architecture of the property.
Security – the window frames and locking systems on double-glazed windows make it a great deal harder for intruders to gain entry to your home – an important consideration in these days of increased crime rates.

Secondary glazing

Secondary glazingInternal secondary double glazing can be a cost-effective solution if the main window is essentially sound and in good condition but there is a requirement to improve thermal and/or noise insulation.

Secondary glazing is manufactured from slim, unobtrusive white enamelled aluminium profiles, usually with single glazing. Double glazing is also available for specialist applications. These units replicate the design of, and are installed inside the main, or primary, window.

The product range includes:

  • Vertical sliders for sash windows, with a tilting and removable sash facility for ease of cleaning
  • Horizontal sliders with removable sashes for 'picture' type casement windows
  • Hinged units for narrow casements, doors and French doors or windows. Sashes can be lifted off
  • Lift-out units for use when only occasional access is required to the main window
  • Fixed units, usually only used to insulate glass panels within doors

Secondary double glazing is suitable for all conservation areas and, subject to listing detail, listed buildings.

Please see: www.windowstoday.co.uk/secondary_glazing.htm

Triple glazing

Triple glazing introduces an additional pane of glass into the unit. This gives even greater sound insulation so is extremely practical for those who live in a built-up area, near a busy road or close to anything that causes significant sound pollution.

There will also be greater energy savings from triple glazing although the cost is typically 20 – 40% more than double glazing.

Generally speaking there are not many suppliers of Triple Glazing in the UK

 

   
     
 
     
   

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