BUILDING ENVELOPE


system that works to prevent air leakage – effectively creating a sealed environ- ment – is essential to minimise heat loss.


SPRAY APPLIED, OPEN CELL INSULATION reathale, open cell spray applied oams are highly eficient insulators against both conductive and convective heat loss as they control air movement and eliminate air leaage pray applied oam insulation is also etremely eile it moves with the structure, maintaining its insulative properties for the lifespan of the building.


The most widely used spray applied foam insulation used in domestic buildings is “open cell” composition. pen cell systems such as Huntsman oamite provide outstanding insulation but also allow the building to breathe naturally, resisting internal condensation – particularly important when insulating heritage-type buildings and avoid mould proliferation.


CONTROL OF AIR QUALITY Heat loss through mass transer is more comple and relates to how much moisture is held in the air (humidity). The more there is, the more energy it taes to heat it, so to eel warm, damp uildings need more energy than dryer ones. o control humidity, you need to e able to control the air movement and


Better insulation of domestic households is an important way of reducing carbon emissions.


you can only do this if the building is relatively airtight pray oam insulation does this effectively and quickly y sealing air gaps, enaling controlled ventilation and mechanical heat recovery systems to perorm eficiently


A HOLISTIC APPROACH TO HEAT LOSS MITIGATION High perormance insulation, eective control o air movement and air uality, in combination with low carbon heating are interconnected elements that need to be addressed as one in the design of new-build housing to ensure heat loss


mitigation. Until Building Regulations tae a holistic view o this comple picture, the industry will continue to build housing that performs well in one respect but fails in others rom a wider perspective, ringing the s legacy o pres, poorly insulated housing stock up to a suficiently high perormance is a whole dierent allgame, one that needs urgent attention at the highest level.


Quentin Bassieux is UK country manager for Huntsman Building Solutions


Yeoman Rainguard crowning glory on development


P


roperty developers Golden Eye Group, augmented their latest residential development with a highend eterior fi nish incorporating a rainwater system from Yeoman Rainguard. ith a mantra o a uality fi nish that will stand the test of time” Golden ye ensured that uality was re ected not only internally but for all parts of the external building envelope too.


s part o the unction and design criteria o the house acade, Yeoman Rainguard were able to provide a sophisticated, uality rainwater system to ulfi l technical and aesthetic reuirements o dovetail into the contemporary


look, Yeoman Rainguard SL Aluminium gutters and downpipes were chosen he    mm  ushfi t  luminium downpipes provided a modern clean line coupled with    mm MOG gutter.


luminium ascia and ofi ts rom


Yeoman Rainguard’s new Squareline range were fi tted to complement the slee lines ll were fi nished in a smooth   rey colour to perectly match the shade o the windows and doors. he aluminium products give a


hardwearing, maintenance ree liecycle o  years or more, maing this


SBH03_Yeoman Rainguard_Building Fabric - Rainwater Products_HPAdv NEW.indd 1 52 www.sbhonline.co.uk


recyclale material oth an ecologically and economically sound choice The rainwater system was installed


y Yeoman ainguards eperienced installer, ensuring the perect fi nish


0113 279 5854 www.rainguard.co.uk


23/02/2022 09:16 mar/apr 2022


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