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HEATING, VENTILATION & SERVICES
at increasing risk of overheating. Part O of the building regulations defines requirements for mitigating overheating in new residential buildings.
An emerging solution is an underfloor heating system combined with a heat pump but run in reverse, to offer a passive or near-passive means of heat removal. The system requires no additional or special components apart from a control system that is designed for cooling as well as heating.
Radiant cooling provides a fresh perspective on indoor climate control and aims to work entirely in harmony with nature rather than against it. Instead of forcing cold air out, radiant cooling works by using cold surfaces to remove the heat radiated from objects within a room. We recently published our Part O research paper, ‘UFH? That’s Cool,’ which further explores the potential of UFH systems to help the industry meet the requirements of Part O of the Building Regulations.
Sustainability from the ground up When it comes to underfloor heating pipework, the sustainable choice is superior-quality PE-RT (polyethylene of
raised temperature resistance) pipe, which is composed of five bonded layers. Polyethylene has excellent properties at high pressures and temperatures, as well as being very flexible and easy to use. It is non-corrosive, has very good resistance to frost, and has a high impact strength. It’s also ‘creep-resistant’ and contains an integral EVOH oxygen barrier layer to prevent water oxygenation inside the system. PE-RT pipe is designed to be environmentally friendly. It can be melted down to be used again or recycled. In contrast, PEX pipework, which contains toxins and can only be burnt or buried due to the molecular cross-linking process. Some PE-RT pipes also come with a product warranty of up to 50 years, offering specifiers, housebuilders and homebuyers alike peace of mind in the quality and durability of the products. However, if the pipe is not disturbed during its use, it is expected to outlive the life of the building itself, further enhancing a building’s sustainability credentials.
Ashley Cooper is managing director at WMS
WWW.ARCHITECTSDATAFILE.CO.UK
ADF OCTOBER 2024
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