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A breath of fresh air

How do you design a roof terrace that not only meets safety and functionality requirements, but exceeds your client's every expectation? Glazing Vision offers expert advice on getting your project off the ground

In association with
Roof terracing at Taras Na Fali apartments in Sopot, Poland by Glazing Vision Europe.
Roof terracing at Taras Na Fali apartments in Sopot, Poland by Glazing Vision Europe.

Space is often at a premium in the UK. In most of the country, around 20% of households live in flats, many of which have no garden or balcony space. The problem is compounded in areas where most of the accommodation is apartments.

One way to effectively increase the amount of outdoor living space on a property is to build a roof terrace, but where should you begin?

During the early stages of the planning process, it is important for the design team to work closely with the homeowner or developer to determine exactly what is expected of the finished roof terrace and how it will be used.

Glazing Vision Europe's three-wall boxlight increases functionality at the Taras Na Fali apartments in Poland.
Glazing Vision Europe's three-wall boxlight increases functionality at the Taras Na Fali apartments in Poland.

Questions to ask when planning a roof garden include:

  • Will the space be used by children?
  • Will pets use the space?
  • How much time will be spent on the roof terrace?
  • How can you maximise the best views?
  • How will the outdoor terrace be made accessible?
  • Will you need walk-on roof lights for lighting up the space below?
  • What kind of lighting will be required?
  • What’s the microclimate like?

While creating stunning visual elements and unique features within the design is key to unlocking a space that meets and exceeds expectations, safety and functionality must come first. This article outlines some important factors to consider.

  • SPPARC Architects' Music Box apartments in London feature roof terrace boxlights by Glazing Vision.
    SPPARC Architects' Music Box apartments in London feature roof terrace boxlights by Glazing Vision.
  • Glazing Vision's thermally efficient boxlights at The Music Box feature a solar-control glass coating that reduces solar gain while maintaining light levels.
    Glazing Vision's thermally efficient boxlights at The Music Box feature a solar-control glass coating that reduces solar gain while maintaining light levels.
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Privacy and permissions

Privacy is one of the most common reasons for planning permission to be denied. If there’s a chance that the roof terrace will look out over a neighbour’s property, then you will probably need to find a way to obstruct those views. For example, frosted glass balustrades or privacy screens may be required.

Access and safety

Roof terrace access can be split into two main types:

● Access from the same level This is often the result of an extension project, where a single-storey extension is added to a property, and the flat roof of the extension is turned into a terrace. In this situation, access can be fairly easy: a set of doors can be built into the existing upper-storey wall to provide access.

● Access via stairs If the roof is directly above the rest of the accommodation, then a set of stairs will need to be installed to provide a route to the terrace. Rooflights are a popular solution for roof terrace access. Boxed or sliding rooflights, for example, can create the vertical space necessary for the staircase and the associated headspace clearance. Architect Trevor Morris of SPPARC Architecture utilised boxed rooflights by Glazing Vision in its Music Box penthouse apartments in London. They also feature on the terraces of the Taras Na Fali apartments in Poland.

Standard box rooflights by Glazing Vision cost from around £12,000 upwards.
Standard box rooflights by Glazing Vision cost from around £12,000 upwards.

Building Regulations

  • Approved Document K sets out the requirements that must be met to prevent injuries due to falls, collisions and impacts. There needs to be at least 2m of head clearance on any staircase (measured from the pitch line), while the width and length of a landing should be at least as great as the smallest width of the flight of stairs.
  • Approved Document A requires that buildings be constructed so that combined dead, imposed and wind loads are sustained and transmitted to the ground safely and without causing deformation of any part of the building.
  • Approved Document Q covers the standards for doors and windows to resist physical attack by a burglar. It also applies to some rooflights designed for flat-roof applications, particularly those installed on the top of single-storey extensions.

All of the above will need to be considered when planning your client's dream roof-terrace space.

For more information and technical support, Glazing Vision and Rooflights.com have created a comprehensive guide to planning and specifying roof terraces, which covers a range of issues surrounding design, structure and access. Download the guide here.

 

Contact:

01379 658300

sales@glazingvision.co.uk


 

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