HYDRAULIC DESIGN AND EXPERIMENTAL INVESTIGATION OF ROOF DRAINAGE SYSTEM

Abstract:
Developing countries generally lack long-term data and have limited terms of reference or
empirical data on many areas including the field of engineering design and construction. At
present, design of roof drainage system are addressed subjectively, on ad-hoc basis, by
individual designers using guidelines adopted and adapted from different standards of
practice or based on experience. Optimisation of design criteria for roof drainage system is
the main objective of this study. The paper presents the methodology and implementation of
hydraulic design and laboratory investigation on roof drainage system, based on parameters such as roof slope, roofing catchment profile, gutter cross section and gutter slope. The details and results of laboratory tests are also presented. The results of this study have been used to prepare recommended guidelines by CIDB for use by the architects, designers and builders in East Malaysia.
Keywords:
Hydraulic Design, Roof Drainage, Rainfall Simulator, Model Roof, Gutter Slope