Roof construction defects of medium-rise buildings in sub-tropical climates: Fid-Bau Portal

Roof construction defects of medium-rise buildings in sub-tropical climates

Lo, Y.T. / Leung, W.M. / Cui, H.Z.

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Cracks in the roof parapet wall and damage to the waterproofing membrane are the common defects of roof construction that require frequent maintenance. This paper seeks to review the common defects of roof construction of medium-rise buildings in sub-tropical climates.

Design/methodology/approach –

The research reported was carried out by the survey and analysis of 20 case study buildings. The modes of rooftop parapet wall dislocation are studied and the effects of thermal expansion and end conditions of the parapet wall on the damage to the waterproofing membrane are analysed.

Findings –

Parapet wall dislocation failure is dependent on whether the ends are hinged or fixed. Failure usually leads to tearing of the waterproofing membrane.

Practical implications –

Modification to the roof parapet wall design and to the selection of construction materials is suggested.

Originality/value –

The modes of failure and proposed modification will be of interest to designers and those responsible for the maintenance of flat-roofed buildings in sub-tropical climates.

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Roof construction defects of medium-rise buildings in sub-tropical climates

Lo, Y.T. / Leung, W.M. / Cui, H.Z.

Abstract

–

Design/methodology/approach –

Findings –

Parapet wall dislocation failure is dependent on whether the ends are hinged or fixed. Failure usually leads to tearing of the waterproofing membrane.

Practical implications –

Modification to the roof parapet wall design and to the selection of construction materials is suggested.

Originality/value –

The modes of failure and proposed modification will be of interest to designers and those responsible for the maintenance of flat-roofed buildings in sub-tropical climates.

Roof construction defects of medium-rise buildings in sub-tropical climates

Lo, Y.T. / Leung, W.M. / Cui, H.Z.

Abstract

–

Design/methodology/approach –

Findings –

Parapet wall dislocation failure is dependent on whether the ends are hinged or fixed. Failure usually leads to tearing of the waterproofing membrane.

Practical implications –

Modification to the roof parapet wall design and to the selection of construction materials is suggested.

Originality/value –

The modes of failure and proposed modification will be of interest to designers and those responsible for the maintenance of flat-roofed buildings in sub-tropical climates.