A survey of roof failures in Oyo State of Nigeria

Rising incidences of roof failures in recent times in many parts of Oyo state, Nigeria have become a matter of concern and a survey was undertaken to investigate the pattern of failure, causative agents, consequences and possible remedial measures aimed at curtailing these occurrences. The survey ad...

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Bibliographic Details
Published in:Journal of building appraisal 2007-05, Vol.3 (1), p.52
Main Authors: Yahaya Mijinyawa, Adesogan, Sunday Olufemi, Ogunkoya, Olugbenga Gideon
Format: Article
Language:English
Subjects:
Building construction
Building failures
Causality
Concrete
Construction
Design
Failure
Heat conductivity
Industrial buildings
Polls & surveys
Roofing
Studies
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Summary:Rising incidences of roof failures in recent times in many parts of Oyo state, Nigeria have become a matter of concern and a survey was undertaken to investigate the pattern of failure, causative agents, consequences and possible remedial measures aimed at curtailing these occurrences. The survey adopted the use of questionnaires, interview schedules and focus group discussions. Information considered of relevance to the study was the type of roof, materials used for construction, type of buildings and topography of the environment. Besides being blown off, which is the popularly acknowledged index of failure, a number of roofs were found to have failed in their primary function of offering protection against rain and reduced solar radiation even when they were not blown off. Wind is a major causative agent of roof failures as it either completely removes the roof or tears it, leading to leakages. Corrosion was also a major factor resulting in leakages. The consequences of roof failures include damage to personal belongings and exposure of inhabitants and livestock to inclement weather conditions, and in some cases livestock were lost.
ISSN:1742-8262
1744-9545
DOI:10.1057/palgrave.jba.2950055