Malaysia is ranked as the world’s largest producer of palm oil, and the industry is the main agricultural industry in the country. This paper illustrates the durability aspect of lightweight aerated concrete produced using POFA (Palm oil fuel ash) and PFA (pulverise fuel ash) when exposed to sulphuric acid. 30% POFA and 20% PFA was replacement by weight of cement and an OPC concrete mix functioning as control specimen was considered in this research. All the specimens were subjected to water curing for 28 days before immersed in the sulphuric acid having pH 1 for 2160 hours. The progressive deterioration was evaluated through mass changing of the specimens, visual inspection and relative compressive strength determinations. Conclusively, the study found that 30% POFA and 20% PFA enhances the resistance of aerated concrete towards sulphuric acid attack.