• Geographic location: Latitude: 43°27’.085, Longitude 70°15’.325, Height: 1048, 30m above sea level.

• Technical Data Card: — Project Start Date: 10th of January of 2007; — Construction State: Final stage of construction.

• Architectural Response: The prototype responds to a one-floored unfamiliar house. It possesses a multifunctional space — for sleeping and living-, bathroom and kitchen. Its surface is 22.12 m2 plus 11.20 m2 of greenhouse; total of 33.32 m2. It is north-oriented for greater solar profit by means of a greenhouse incorporated to the functional development of the house and it faces these spaces, which they overflow (Figure 11).

• Construction modality: since the addressee is an elderly person, manual labor from the programme was chosen to support self-production of the house.

• Walls, Roof and Floor: Traditional construction techniques were recovered and material and human resources from the area and few industrialized materials were employed. a) Wall: Masonry of champa de mallm (compact block of earth from the region) of 0,30 m of exterior thickness and of 0,15 m interior; “in situ” units of extraction; of: 0,30 m x 0,40 m x 0,12 m or 0,15 m x 0,40 m x 0,12 m settled on mud; superficial masonry finish of unfurled metal and plastering with water repellent cement, thick and fine; Carpentry: Wooden doors and windows; b) Ceiling: Wooden structure, matched wood ceiling with water repellent insulation — with tarred paper — and thermal insulation — with glass wool — and cover of zinc sheet metal (Figure 12); c) Floor: Flagstone on slab foundation of stone.

• Energetic and Environmental Conditioning Systems:

A) Solar systems to (Figure 13):

— Passive heating: solar gain is direct by means of heat-sealed double-glazed windows — and of the greenhouse.

— Storing: Most heat accumulation is achieved in the exterior and interior champa de mallm.

— Hot water: the system of sanitary water heating counts on a commercial collector of 1 m2 and an isolated accumulator water tank of 50 litres which feeds the bathroom and kitchen artefacts.

— Greenhouse: the system permits the production of fruit and vegetables; it possesses a polycarbonate sloped closure which acts as a ceiling lateral closure to the North.

B) Wind-powered systems: power obtainment -12 volts, continuous current — is done by means of a wind-powered generator of 600 w.

C) Conventional heating and cooking: a high performance sheet metal oven was installed — “Nuque Oven”- for cooking and heating.