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HEATING, VENTILATION & SERVICES
Warning: Are your louvres non-compliant?
Renson UK National Sales Manager Martin Daniels explains how honest testing isn’t always as transparent as it should be...
W
hen specifying louvres for architectural projects,
it’s imperative that the products
selected are of the highest quality. At Renson UK, we’ve spent the past 50 years designing, developing and manufacturing high- performance ventilation products, supplying fully tested,
high-quality louvres and
mechanical ventilation products for every application. It’s during this time that we’ve come across many non-compliant louvres in the market – and it all comes down to testing. The industry standard for weather testing of louvres in the UK was developed by the Building Services Research and Information Association (BSRIA) in collaboration with the Heating, Ventilation and Air Conditioning Manufacturers Association (HEVAC), and was adopted in 2001 as British and European Standard: BS EN 13030:2001. Since then, BS EN 13030:2001 has tested louvres in three key performance
areas – water penetration, or the ability to prevent rain penetrating the louvre; pressure drop, or how freely the louvre allows air to pass through; and overall performance, a combined measure of
both. The tests
themselves simulate the real-life operating conditions that a louvre will undergo when installed, enabling clients to compare one manufacturer’s performance against another. During the water penetration test, the louvre is subjected to a simulated rainfall rate of 75 l/h and a wind speed of 13 m/s (30 mph). The rejected water is collected in the weather section, and water in the collection duct is measured to calculate the percentage of water penetrated through the louvre. In
ADF10_Renson_Heating Ventilation & Services - Air
Quality_HPAdv.indd 1 Gaia installs electric underfl oor heating in trailblazing eco housing development
Underfl oor heating specialists Gaia have designed, supplied and installed state-of-the-art electric underfl oor heating in eco housing development Howgate Close. Howgate Close provides local people with high quality rented homes, offering low running costs, low maintenance and access to the countryside. However, a key benefi t is the energy effi ciency. All dwellings feature electric underfl oor heating as a back-up to energy generated from 138 roof-mounted photovoltaic (PV) panels.With Design SAP (Standard Assessment Procedure) Ratings of 131A and 143A, the houses are in the top 0.01% of the UK’s 14 million registered Energy Performance Certifi cates (EPCs).“It’s an honour to have worked on such a progressive development which has sustainability at its heart. Electric underfl oor heating is perfect for Howgate Close – its ability to signifi cantly reduce energy consumption and lower people’s monthly bills places it at the top for low-carbon heating,” says Steven Rooney, Director at Gaia Underfl oor Heating. Trusted by architects, contractors, M&E consultants, builders and developers, Gaia design, supply and install underfl oor heating across the UK and Ireland.
Photo by Dr Jerry Harrall 01359 242 400
www.gaia.co.uk ADF10_Gaia_Heating Ventilation &
Services_DPR.indd 1 Optimal comfort from Gilberts
An intelligent decision in utilising an intelligent spring could help improve occupant health and performance alongside savings in energy and manufacturing time. The “super spring” is a core component of Gilberts’ latest GSJ adjustable thermal swirl diffusers. Utilising an advanced thermally reactive spring as a core component of Gilberts’ latest GSJ adjustable thermal swirl, the diffuser now has a reaction time – and therefore temperature adjustment – occurring within seconds, verses other thermally actuated diffusers, which use wax technology, which can take up to 60 minutes. Triggered by the temperature of the incoming air (usually when it varies by 2ºC from pre-set boundaries) the intelligent spring instantly adjusts the omni-rotational diffuser vanes, delivering warm air vertically and cooler air horizontally. This process ensures rapid initial warm up, and avoidance of uncomfortable draughts. Quickly controlling the airfl ow direction to maintain a comfortable environment in the internal space below, it only takes seconds to restore the equilibrium – whether through exposed ductwork, ceiling grids, clip-in ceilings or perforated ceilings.
01253 766911
info@gilbertsblackpool.com ADF10_Gilberts_Heating Ventilation & Services - Air
Quality_DPR.indd 1
WWW.ARCHITECTSDATAFILE.CO.UK
02/10/2023 08:59 ADF OCTOBER 2023
05/10/2023 11:47
addition to the simulated wind at 13m/s, air is drawn through the louvre to simulate inlet ventilation rates. The problem is, the BS EN 13030:2001 test does not measure or give consideration to the way the water is collected, and it’s therefore easy to get away with placing an abnormally large collection plate behind the louvre simply for the sake of the test. Therefore when comparing different
louvres, it is important to obtain a full copy of the test report – a full report will show if any large collection trays were incorporated. Because of this loophole in the BS EN 13030:2001 test, we’ve seen a countless number of louvres being approved and highly rated, but that end up being non- compliant, and at Renson, the last thing we want to do is let our customers down with an inferior product. We therefore provide all our customers with full test reports for complete transparency – additionally, all our test reports are freely and easily downloadable from our website.
www.renson.eu/en-gb/for-professionals/contact 11/09/2023 12:20
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