STRUCTURAL FAILURES OF ARTISANAL-BUILT ROOFS DURING RAINSTORMS IN GHANA: COMMON CAUSES

S. O. AFRAM AND S. AMOS-ABANYIE
Faculty of Architecture and Building TechnologyCollege of Architecture and Planning,
Kwame Nkrumah University of Science and Technology, Kumasi, Ghana

Abstract
In Ghana, it is common, in both the electronic and print media, to see and hear news of numerous buildings whose roofs had been ripped off during rainstorms. However, it seems, from the news reports that a greater percentage of these buildings are usually school buildings within rural and suburban areas. The reasons are not difficult to ascertain since most of these school buildings in the said areas are designed and constructed by draughtmen and itinerate artisans respectively, who do not have a fine perception of design and detailing, to counteract the stresses imposed by the elements. The authors, in years of practising as architects in Ghana, encountered several buildings put up by local artisans which have had their roofs partially or totally ripped off during thunderstorms. This paper seeks to look at some of the defective construction methods and details of roof anchorage to the superstructure employed by these artisans, conventional methods used by qualified technicians and architects and an innovation which has now gained grounds within the building construction industry in Ghana.

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