Ingenieur Vol 91 2022 | Page 44

INGENIEUR
INGENIEUR
Figure 4 : Direction of the Southwest Monsoon winds blowing across Malaysia ( MetMalaysia ) ( Source : https :// www . therakyatpost . com / 2020 / 08 / 11 / based-on-thecurrent-temperature-were-a-fewdegrees-shy-from-a-heatwave /)
Different coefficients of thermal expansion mean that concrete structures , comprising brick , concrete components and fenestrations with metal frames , expand and contract in different volumes and lengths when exposed to heat . Such thermal stress causes cracks that break the waterproofing membranes and moisture barriers , resulting in the infiltration of rainwater , which is detrimental to indoor environmental health , comfort and durability of buildings .
Floods and Rising Ground Water
Widespread devastation was brought about by the Northeast Monsoon which caused heavy precipitation with a record high of 360mm rainwater
Figure 5 : Heat-induced cracking on the facades and the highest floors with a flat roof
Figure 6 : Defects in Masonry Walls Guidance on Cracking : Identification , Prevention and Repair , CIB Publication 403 , Nov 2014
42 VOL 91 JULY-SEPTEMBER 2022