26 TOP MARKS FOR DDG WINDOWS
Synseal fabricator and installer, DDG Windows Ltd, recently completed a school project a week ahead of schedule, providing pupils with an energy efficient and comfortable learning environment in time for the new term. The replacement B rated PVCU windows measure 3m x 2.7m each and are made using Synseal's Shield profile and Saint Gobain’s Planitherm Total+ glass. They are fully reinforced and fully welded for extra strength and sturdiness. The windows for the
upper floors also come with telescopic window openers. It took six of DDG's installers five weeks on site to complete the project, and they made good the interior so there was no need for extra trades to visit the school once they had left. t 01623 443200
www.synseal.co.uk
128 DONATION IS CHILD’S PLAY FOR BRETT MARTIN
Brett Martin has come to the rescue of a dilapidated youth club in Liverpool by responding to a DIY SOS in aid of Children in Need. The refurbishment of Norris Green Youth Centre is the DIY SOS team’s biggest ever build and Brett Martin certainly helped them make an impact by donating Marlon FS Hard strike-resistant polycarbonate for the centre’s security windows. The anti-vandal windows hit the spot in more ways than one when presenter Nick Knowles
struck one with a baseball bat; Nick’s wrist came off worse, the window was undam- aged. Marlon FS Hard is a lightweight yet highly resilient polycarbonate. Two hundred times stronger than glass, it is virtually unbreakable. t 028 9084 9999
www.brettmartin.com
129
W MU 4200:
New generation of Curtain Wall Technology from Universal
here constraints from planning guidelines, lease conditions or client budgets prevent the windows from being replaced, secondary glazing provides an attractive and practical solu-
tion. Designs have been evolving for over more than 40 years to meet changing needs and, with the increasing focus on energy performance, secondary glazing is set to become a lot more relevant. Buildings account for 40 per cent of the UK’s total carbon emissions
with many buildings using nearly half their energy supplies for heating. This is both expensive and wasteful and, with growing emphasis on climate change, building owners everywhere will need to consider ways of reduc- ing usage. A benchmark for a building’s energy conservation performance is covered by the Building Regulations, but this only applies to new build- ings and those undergoing major reconstruction or change of use. However, it is possible to raise the energy efficiency of existing buildings to meet BR Standards with payback being made through reduced energy bills, the value of an enhanced Energy Performance Certificate and a visi- bly proactive policy on the environment. Single glazed windows are a major factor in energy loss, as glass is a
The MU4200 is a technically advanced Flush Glazing System that introduces a host of groundbreaking features to enable new opportunities for stimulating and innovative building design. Key features include: • Full CWCT certification • Parallel feature grooves throughout • Minimal framing • Equal sightlines for vents • Enhanced thermal and acoustic performance • Many integrated system design features.
A system that delivers stunning results
www.universal-aluminium.co.uk Call 0117 955 9091 to speak to a specialist in Universal’s Architectural Business Division
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poor insulator and because the windows can be ill fitting and draughty. A simple and cost effective solution is to introduce secondary glazing, which is a reversible intervention and therefore highly appropriate for Listed buildings. Secondary glazing traps an insulating layer of air between the windows
and efficient seals will exclude draughts over the whole frame. The use of low emissivity glass will allow the U-value, a measure of the rate of heat loss through the window, to fall below 2.0 from typically 5.7 in a single glazed window. Noise is also a major problem and, whether it is containment or
exclusion, levels need to be carefully managed to provide an acceptable environment. Sound is measured as a pressure and is expressed in deci- bels. The scale is logarithmic and an increase in sound pressure level (SPL) of 10dB approximates to a doubling of loudness, whereas a change of 3dB is just about noticeable. Heavy street traffic will register
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