Home > Company News > News Archive 2010 > Doc L October 2010
The latest revisions to Part L Building Regulations, which are due to come into force in England and Wales in October, will set a new mandatory requirement for window energy performance within the Window Energy Ratings (WERs) Scheme.
Forward thinking investment in product development and testing over the past few years has put us - and our customers - one step ahead of this major update of energy efficiency regulations. We have taken all the necessary steps to ensure that all our products comply to these new more stringent regulations.
Duraview Vertical Sliding Aluminium Windows This window system currently complies to none of Document L of the new building Regulations, as it fails to meet the minimum U-value or WER. This product will soon be replaced with a brand new Duraview Plus vertical sliding window. |
Prime Vertical And Horizontal Sliding Aluminium Windows These windows currently comply to none of Document L of the new building Regulations, due to the fact that it fails to meet the minimum U-values or WER. As a result this product is now only suitable for aplications where a non-thermal sliding window is viable. |
Monarch Vertical Sliding Aluminium Windows This window currently complies to none of Document L of the new building Regulations, as a result this window system has been discontinued. |
Monarch Classic Aluminium Sliding Patio Doors These patio doors comply to none of Document L of the building Regulations, due to the fact that it fails to meet the minimum U-value for doors (not specified in 2006). This product has since been replaced with our Monarch Crown 98 Patio Doors. |
Smarts Slim-line Sliding Patio Doors This patio door system currently complies to the new Document L part L2A only of the building Regulations only. This means that is currently only usable in New build commercial projects or as an internal room divider. New slim-line patio systems have been developed to replace this product, which comply to Document L part L1 and L2B. Find out more about our Duraslide 1000 and 2000. |
Smarts Slim-line Horizontal Sliding Windows This window system currently complies to the new Document L part L2A only of the building Regulations. This means that is currently only usable in New build commercial projects. A new horizontal sliding window system has been developed to replace this product. Find out more about our Duraslide 2000 Windows. |
Smarts Visoline Tilt And Turn Windows This window system currently complies to Document L part L1A and L2A of the new building Regulations. This means that it is currently only usable in New build projects. The Furture of this window is uncertain. We will be looking at an alternative tilt and turn window. |
This system currently complies to Document L part L2 A only. This is new build non-dwellings, or in other words new build commercial projects only. We are looking at making chages to bring the U-value down from 2.0 to 1.8 inorder to comly with all the building regulations, but the future of this system is uncertain. |
The new UK Building Regulations' have now been published and these come into effect on the 1st October 2010. The summary of these amendments are quite tough and the requirements are as follows:
Part L1A (New Build Dwellings) |
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Part L1B (Existing Dwellings) |
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Note 1: The 1.2W/m²K Glass Centre Pane value is no longer a form of compliance unless the need to maintain the facade or the character of the building is required. |
Note 2: Insulated cavity closers should be installed where appropriate. |
Part L2A (New Build Non-Dwellings) |
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Part L2B (Existing Non-Dwellings) |
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Note 1: The 1.2W/m²K Glass Centre Pane value is no longer a form of compliance unless the need to maintain the facade or the character of the building is required. |
Note 2: Insulated cavity closers should be installed where appropriate. |
Window Energy Ratings (WERs) have been the main way of demonstrating Part L compliance since the last revision to the regulations in 2006, and they have proved popular with consumers who recognize the A to G energy labels from the white goods they buy for their home. The introduction of Part L 2010 will see the minimum requirement for a Window Energy Rating rise from an 'E' rating to a minimum 'C' rating. This, however, is widely expected to increase to a mandatory 'A' rating in 2016 as the construction industry moves ever closer to the end goal of zero carbon buildings.
The new regulations will also remove what in the industry has become to be through of as the 'get out of jail card' that has made it possible for manufacturers to comply to the 2006 regulations by simply supplying a window that has a glass centre pane value of 1.2 W/m²K. Under the new regulations this is likely to be allowed only in exceptional circumstances, for example where the choice of frame is restricted, such as in conservation areas. It should be noted that there are two main routes to compliance for the new Part L legislation, WERs and the 'U' Value, both of which have been revised in these latest regulations.
These changes certainly mark an important advance for the window industry and it’s not surprising that many view them as a challenge. However, while we appreciate there are concerns, we believe this is an ideal opportunity to bring some clarity to window performance and to drive up standards across the board. That's why at Duration Windows we are doing all we can to help our customers meet these new stringent regulations with practical, cost effective support.
We first introduced our 'A' rated aluminium window back in April of last year, well before the new mandatory requirements were confirmed and now have schemes in place to fast track our customers to compliance. Having our own in-house BFRC certified simulator programs also means that we can save the time and cost of outsourcing simulations.
Duration Windows is already reaping the benefits of being BFRC registered and now you can too. Our pioneering 'A' rated windows from our Premium Window Range already more than exceed Part L 2010 requirements using only a double glazed unit. And whilst an 'A' rating is easily achievable, the system's flexibility also offers a range of B and C rated windows, providing a cost effective and fully compliant option ahead of the new building regulations.
Part L 2010 will introduce robust energy performance requirements across all building components and reflects the growing trend towards more sustainable building. Aluminium already scores highly on green credentials, being a fully recyclable material and having a long life cycle, new standards in thermal efficiency, durability and security. We continue to work in partnership with other leading systems companies to try to push the boundaries of window energy performance through the latest warm edge spacer technology and by groundbreaking low emissivity glazing.
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