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» MANY OF THE UK ’ S national and regional housebuilders are opting to specify Keylite Roof Windows ( Keylite ) as their preferred supplier , due to the market-leading and innovative product solutions that come as standard .
With several changes made to Building Regulations in England and Wales last year , including additions to ‘ Approved Document L : Conservation of fuel and power ’ and ‘ Approved Document F : Ventilation ’, housebuilders have been looking for products that take the headache out of compliance by ensuring they meet current requirements .
The purpose of Part L is to ensure energy efficiency in buildings , with new and
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existing homes in England now being subject to higher building performance targets in an interim step towards the Future Homes Standard and Future Buildings Standard that will arrive in 2025 .
Lee Squelch , Regional Sales Director ( GB ) for Keylite , comments : “ Keylite ’ s patented Integrated Expanding Thermal Collar ensures the thermal integrity of the window and roof is as designed , thus removing the reliance on an additional thermal collar and
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helping achieve Approved Document L requirements . It also improves airtightness and Psi Values for SAP , helping housebuilders meet new regulations .”
One of the biggest issues for housebuilders is thermal bridging , which is an area of a building construction which has a significantly higher heat transfer ( loss ) than the surrounding materials . One example of where this would occur is with junctions around windows , including roof windows .
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If this area is not insulated it can lead to cold bridging on roof windows ; this is where the gap between the roof and window creates a cold section all around the frame due to the temperature differentiation between the outside and inside , which contributes toward heat loss and can eventually lead to condensation and mould .
Keylite has taken the lead in ensuring it removes the possibility of this occurring , ensuring its products are designed in such a way that housebuilders don ’ t have to consider the ‘ gap ’. These built-in features help eliminate thermal bridging , which reduces the risk of non-compliance and delivers a build that is closer to the expected energy performance .
www . keyliteroofwindows . com
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