Building Regulations, Document L, FENSA, Double Glazing, Replacement Windows, UK, Pilkington K

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Building Regulations -
for Windows and Doors

In England and Wales building regulations Part L, and its accompanying Approved Document cover issues relating to the conservation of fuel and power. 

Suppliers must prove that their windows meet the minimum energy efficiency requirements of U2.0 for wooden and PVC-U frames, and U2.2 for aluminium frames as of April 2002.

The accepted and most accurate way of calculating a U Value is through 'hot box' test. These however are both expensive and time consuming.

The UK's leading supplier of Glass to the replacement window market - PILKINGTON have however made things somewhat simpler by working with many of the UK's leading profile manufacturers and carrying out full hot box tests on a variety of their frames fitted with Pilkington Insulight™ Therm insulating units. 


Need help with condensation or a replacement window

click here for a free brochureThe table below shows some of the window systems proved to conform to DOC L of Building Regulations - All these profiles have achieved Part L compliance when fitted with Pilkington Insulight™ Therm insulating units.


Manufacturer Profile Material:
PVC-U / width
Pilkington Insulight™
Therm Insulating Unit
Contact details Website
Deceuninck UK Ltd 3 chamber 60mm 4/16/4K air-filled 01249 816969 click here
Eurocell Profiles Contract 60
Ultimate 70
60mm
70mm
4/16/4K air-filled
4/20/4K air-filled
01773 842100 click here
HIS Five Star chamber 70mm 4/20/4K air-filled 01278 450600 click here
LB Plastics Ltd
Sheerframe
6000 4 chamber
7000 4 chamber
60mm
70mm
4/16/4K argon-filled*
4/16/4K argon-filled**
01773 852311 click here
Kommerling Gold 58 3 chamber 60mm 4/20/4K air-filled 01784 464000 click here
Plastmo Profiles Ltd 3 chamber 60mm 4/16/4K air-filled 01604 790780 click here
Premier Profiles Ltd 3 chamber
3 chamber
60mm
70mm
4/20/4K air-filled
4/16/4K air-filled
01302 311200 click here
Profile 22 3 chamber
4 chamber
60mm
70mm
4/16/4K air-filled
4/16/4K air-filled
01952 290910 click here
Spectus Systems Classic 62
Sightline 70
60mm
70mm
4/16/4K air-filled
4/16/4K air-filled
01625 420400 click here
HW Systems Vinylock 1600
Vinylock 1500
HW70
63mm
63mm
70mm
4/16/4K air-filled
4/16/4K air-filled
4/16/4K air-filled
01625 423523 click here
Veka Matrix Fully
Reversible
Matrix 58 
70mm
60mm
4/16/4K air-filled
4/16/4K air-filled
01282 716611 click here
WHS Halo System 10
Rustique
System 10
Estetique
60mm
70mm
4/20/4K air-filled
4/20/4K air-filled
0121 7493000 click here
Magnet Windows Casement Timber (redwood) 4/16/4K air-filled 01535 661133 click here

The tests were carried out at the National Physical Laboratory, Middlesex using insulating units containing Pilkington K Glass™.
Other units in the Pilkington Insulight™ Therm range use different types of Pilkington low E glass for even greater energy efficiency.
Thermal performance of any unit can also be improved by filling with argon rather than air.
*Achieves U value 1.74W/m2K.
**Achieves U value 1.75W/m2K. Air filled also achieves <2.0W/m2K.

For more information on U Values - visit http://www.windowstoday.co.uk/pilkington_k_glass_uk.htm

 

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