Fossil Fuel Residue

Sulphur dioxide develops when burning fossil fuels. After oxidation and reaction with water it forms sulphuric acid (H2SO4) that can contribute considerably to the atmospheric corrosion of zinc and steel.

Burning resinous woods, CCA-treated timber, low-grade coal or oils with a high sulphur content can increase the fall-out deposit or condensate from flue gas.

Exhaust fans can cause similar problems when corrosive gases are not filtered at their source.

Draft Clause: