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48 glass & glazing


“As more buyers prioritise energy efficiency when choosing a home, it’s time for housebuilders to familiarise themselves with the issues and potential solutions”


From part of the problem to the solution


Glazing has an important role to play in achiev- ing modern efficiency expectations, as a significant proportion of heat loss from the typical house occurs through windows, glazed doors and conservatories. Homeowners also benefit from the peace and


quiet that comes with better noise insulation, fewer draughts and cold spots, and reduced condensation build-up on the inside of windows. Even triple glazing units, which have so far


rarely been seen in the UK outside of specialist eco projects, are increasingly being used to meet ever more stringent performance requirements.


Triple trouble


But, despite its performance advantage over many double glazing units, triple glazing isn’t always suitable.


Units tend to be more expensive, bulkier, heav-


ier and they require deeper frames than double-glazed equivalents. It’s not surprising then that so many house-


builders instead favour the new generation of ‘super’ double glazed units. Innovative glass manufacturers have developed


special low-emissivity coatings which can give double glazed units the thermal efficiency of triple glazing.


together, today’s best double glazed units can achieve a U-Value as low as 0.9W/m2


By combining two low emissivity coatings K, previ-


ously only achievable with triple-glazing. Ultra-thin glass products have also come on to


the market that use a vacuum rather than air or argon gas between two panes. These achieve a similar energy efficiency


performance to a high performance double- glazed unit, but in an even thinner profile.


Enq. 164


The next generation of Switchable LCD glass


The UK’s widest range of


switchable glass


 Patented* ESG controller  LCD preservation mode  LCD protection technology  Controllable opacity  Fully CE Certified *Pending


www.esg.glass respond online at www.hbdonline.co.uk 01376 520061 Enq. 165


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