The building slab is a 5” thick concrete slab with part of it bearing on the ground while the rest is located on top of rammed earth tire walls. The tire walls are topped with an 8” deep concrete bond beam to stabilize them and the building slab is supported by a concrete beam frame tying into this bond beam and concrete columns founded on individual square footings at the level below.

The building structure consists of 9’ high concrete columns carrying a continuous concrete beam resting the roof structure. Most of the columns are sitting right above the tire walls and thus do not require proper foundations.

The roof structure consists of a 4” thick reinforced concrete barrel vault tied into the concrete beam. Glass-bricks (2 bottoms of glass bottles taped together) are tied into the vault reinforcement and act as skylights.

Non-structural walls fill the space between the columns creating the delimitation with the outdoor space. The interior space measures 740 sq ft.

Walls are made of ecobricks and cob (earth + sand + straw). Glass-bricks (two bottle bottoms taped together) are added to illuminate the room.