Unsupported browser

For a better experience please update your browser to its latest version.

Your browser appears to have cookies disabled. For the best experience of this website, please enable cookies in your browser

We'll assume we have your consent to use cookies, for example so you won't need to log in each time you visit our site.
Learn more

working details

  • Comment
Alexander Graham Bell House, Edinburgh Bennets Associates

An external solar shading system

The two-storey drum-shaped building, containing a cafe on the ground floor and a double-height restaurant above, is fully glazed on the south and east to give views over the lochan. The restaurant glazing comprises a Structal curtain wall system fixed to a series of back-to-back 350 x 100mm steel channel columns which run at the perimeter to support the concrete floor slab. It is shaded externally with a system of fixed louvres on the south and east sides. The ground floor is set back from the upper floor, which protects it from solar gain.

Thermal modelling, to reduce solar gain and cooling load, helped to determine the position and type of shading. The louvres are 600mm wide curved blades of perforated aluminium, stiffened at the edges by extruded aluminium tubes. They are hung in rows of three between vertical supports - 600mm wide composite steel/aluminium fins which extend from ground to roof level. Paired back-to-back 380 x 100mm curved steel channels run between the fins to brace them. The aluminium louvres are fixed to the fins at one edge; the other edges are supported by 12mm diameter stainless- steel rods suspended from the channels.

The assembly is tied back to the structure with paired aluminium flats bolted to the curved channels. At first floor level and at roof level the ties support a gridded walkway for glass cleaning and maintenance.

The upper part of the solar shading assembly is restrained by a ring beam. On the north side of the drum the louvre panels are replaced by screens of aluminium mesh; they extend above the roof to screen the plant room.

  • Comment

Have your say

You must sign in to make a comment

Please remember that the submission of any material is governed by our Terms and Conditions and by submitting material you confirm your agreement to these Terms and Conditions.

Links may be included in your comments but HTML is not permitted.

Related Jobs