Guttering & drainage
Best in class
Phil Windus from ACO Technologies, delves deeper into drainage channel load classes, and explains why you need to know your A 15’s from your B 125’s
drainage channels are an incredibly common building product. Often bought by the metre, and generally purchased or specified on price, drainage channels can easily slip into a ‘fit and forget’ category. However, by not taking the time to fully consider the final application, individuals can quickly find themselves confronted by disgruntled tenants demanding for the work to be re-done if a product with the wrong load class was installed.
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LOW DOWN ON LOAD CLASSES In accordance with BS EN 1433:2002, all drainage channels are classified into load classes, which are effectively different categories detailing the load-bearing capacity of that product. Ranging from A 15 for pedestrian footpaths and patios,
iven the country’s tendency to suffer from wet weather all year round, and the subsequent need to shift surface water in a variety of domestic applications – from roads and car parks to driveways and patios –
Often bought by the metre, and generally purchased or specified on price, drainage channels can easily slip into a ‘fit and forget’ category.
through to F 900 for airports and industrial yards, the system is a quick way of ensuring that, if you are fitting out a driveway or a patio, the right channel and grating – one that will stand up to the rigours of the application – is selected. However, while the load class system itself is a fairly simple specification tool to follow, it’s one that surprisingly few people are fully up to speed with.
www.housingmmonline.co.uk | HMM July 2018 | 43
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