This project, developed by RATIO:n:ING, consisted of the construction of 28 row houses in the department of Avila, a territory with extreme temperatures lying in the centre of Spain.

Two main types of house were designed; Type A (16 units) with a surface of 140 sqm, and Type B (12 units) with a surface of 160 sqm. Both types had two floors and a flat roof.

All the walls were built with lightweight steel frames, preassembled in client’s facilities, and erected over a concrete foundation. Also the roof was made of light gauge steel beams. The floor structure, due to client wishes, was made of a composite structure (trapezoidal steel sheet + reinforced concrete).

With the use of the light-weight steel structure, the builder had many advantages:

- Fast and safe erection, thus reducing dramatically total costs.

- Increase of thermal insulation thickness with low extra cost.

- Reduction of working errors due to the preassembly of light panels.

The services RATIO:n:ING provided in this project were:

- Design and calculus of concrete foundation

- Design and calculus of the light gauge steel framing structure and composite floor

- Supply of the light-weight steel profiles

- Advising to customer’s team on assembly and erection