Submitted Entries: 1st List Sept 6, 2014 9:40:09 GMT -6
Post by Nka on Sept 6, 2014 9:40:09 GMT -6
In order to overcome the stigma that ‘mud architecture is architecture for the very poor’, I have combined mud with other materials to develop a compound building system. As with traditional mud houses, mud is utilized for its thermal mass and compressive strength; however these houses are faced with problems related to erosion from water and termites. Waste plastic water bottles are available locally and in ample supply given the reduced access to piped drinking water in Ghana. Many types of wood are also produced for export and Sokoban wood village (near the site) has discarded off cuts. This project uses a combination of these locally sourced waste materials to combat the issues with traditional mud houses from a practical and aesthetic approach.
The floor plan follows the layout of the traditional Asante compound house, creating public and private spaces that instill a sense of community and can accommodate extended family members. Like the traditional compound house, the mud house has private bedrooms accessed from the exterior. These however are concealed behind a green wall providing privacy, security and shading without compromising views out. The green wall consists of mosquito and termite repelling creeper plants including hot chilli peppers, African mint and citronella. The communal kitchen/living space has a large open plan layout unlike the hot and cramped kitchens of the traditional compound houses. The kitchen/living space sits beneath a domed roof structure that eliminates the need for a central column and provides a focal point over the family space. The kitchen/living space has woven bamboo screens which can be opened, closed or removed completely creating a flexible space that connects with the exterior and can accommodate large family events.
Construction: bamboo (Bambusa Vulgaris) is a cheap, sustainable, locally produced and fast growing resource which is resistant to termites when treated with boric acid. Bamboo posts are drilled 1000mm into the ground creating a framework for wall construction. The first few feet of the walls act as formwork to encase the cob construction mud foundations. The mud is compressed, levelled, waterproofed with ash soap in 1 to 5 parts water and polished. The walls are constructed by ramming plastic water bottles with earth and laying them out in courses using a mud-cement. Wood off cuts are used as hanging tiles and supported by wooden dowels that run through the bottle necks. These hanging tiles act as rain screen cladding, protecting the mud walls from water damage as well as providing a rich textural finish to the external walls.
Corrugated zinc roofing is used to facilitate total waterproofing, termite resistance and rainwater collection; this is supported by a bamboo frame. In order to provide insulation and sound proofing to the bedrooms, old clothes and waste fabric soaked in liquid cement and ash slurry are laid on top of woven stripped bamboo panels. Once the panels have dried, they are built in to the top of the mud walls providing a ceiling. The interiors are finished with traditional Asante furniture and fabrics creating a strong testimony of local identity, beauty and craftsmanship.
Recycled plastic bottles: free
Wood off cuts: free
Old clothes: free
Corrugated zinc sheets (10 packets): $1200
4 x 8’ plywood (8 pieces): $64
Bamboo (660m): $660
Doors and windows: $148
5 bags cement: $52.50
Plumbing and washroom facilities: $147
Electrical fittings: $223
Equipment and fixings: $400
10% Contingency for errors and omissions: $459.45