Technical Guides

Fragile Roofs – RIDBA Guidance Note Released

What Building Occupiers, Owners and Managing Agents Need to Know About Their Responsibilities

Definition of a Fragile Roof

  • A roof must be considered fragile if it, or the materials forming it, will not take a person’s weight.
  • This includes, old roof lights (possibly over painted), fibre and asbestos cement sheets, old or thin metal sheets, all...
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Selecting the Correct Steel Grade

Steel is a remarkably versatile construction material and has so many uses within modern agricultural and industrial buildings.  In addition to the structural frames, which are usually made from hot-rolled carbon steel, galvanized cold-formed steel is often used for the purlins, cladding rails and the roof and wall cladding, while steel bolts hold the structural elements together and reinforcing...

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Light: Adding Value to a Steel Frame

Design guidance on lighting for livestock buildings has remained rudimentary for years. BS5502: part 40, (1990) states that natural lighting should be provided for cattle where possible, with supplementary artificial lighting where appropriate. Target light levels recommend 50 lux as standard service illumination and 300 lux for inspection. Similar guidance is given for...

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