Studying Corrosion Resistance of Different Roofing Sheets in Ghana

Abstract

There is a great request for housing in Ghana and as a result, the selection of durable roofing sheets has become very significant as roofing plays a vital role in building construction. This investigation aimed to see how corrosive compounds affected the most predominant roofing sheets on the Ghanaian market. One-star galvanised Japan [G1*Jap], galvanised coated [GC], Aluzinc three-star galvanised [AlZn3*], one-star galvanised Indi [G1*Ind], and aluminium [Al] were the most common on the market and were used. The corrosion experiments were carried out by putting various samples in five jars containing various chemicals for varying amounts of time. A computer-interfaced optical microscope (Leica DM 2500M) was employed to study the surface microstructures of the corroded surfaces, with the corrosion rates per day being determined. Average corrosion rates for one-star galvanised Japan [G1*Jap] roofing sheets were the most corrosive resistant whilst [AlZn3*] roofing sheets were the least resistant to corrosion. Generally, G1*Jap roofing sheet stood out as the best roofing sheet in terms of corrosion resistance. These numbers led to the conclusion that G1*Jap roofing sheets were the most corrosion-resistant when compared to the other roofing sheets. The most corroded roofing sheets were Aluzinc three-star galvanised [AlZn3*] roofing sheets.