Energy Efficient Doors

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How do you specify energy efficient doors?

The quality of energy efficient doors is determined by the particular features of the glass sealed units or the door panels installed in it, the frame and the seals between the two. We consider each element of a PVCu double glazed door to assess how to ensure you install energy efficient doors and we do this by asking a series of questions: –

What Is A Sealed Unit? Click Here...

What Is Low e glass and How Does It Work? Click Here...

What’s in the gap between the two sheets of glass? Click here...

Do other types of glass help improve energy efficiency? Click here...

Can any other parts of an insulating glass sealed unit be improved? Click here...

Can PVCu door frames be made more energy efficient? Click here...

What about the door seals? Click here...

What about triple glazing? Click here...

The ‘A’ rating of a door refers only to energy efficiency

When choosing energy efficient doors, householders should be aware that the ‘A’ rating of a window or door refers only to energy efficiency and there are many other factors which should be taken into account to determine the overall quality and suitability to individual situations.

Some companies advertising ‘A’ rated doors are playing on the fact that if a door is ‘A’ rated for energy efficiency, it must be better, in every respect, than other windows that are not.  An ‘A’ rated door is certainly better than a ‘B’ or ‘C’ rated door in terms of energy efficiency, but just being ‘A’ rated doesn’t mean it’s the best type of door available. There are many other factors to take into account than energy efficiency when deciding which type of door to install.

Sculptured profiles generally look better than plain or chamfered ones, the quality and performance of locking systems differs enormously and the quality of the installation and customer service are also important. All of these factors will affect the cost of replacement doors, as will the installation company’s marketing and selling costs, other overheads and built-in profit margin.

Energy efficient doors
Typical Window Energy Rating (WER) certificate for a PVCu casement window. This shows an ‘A’ rated window certificate with an Energy Index of zero, courtesy of Dempsey Dyer