Complex sentence: The building was faced with red brick and terracotta by Burmantofts, a common choice for early twentieth century buildings in Manchester as it was cleanable and resisted pollution and acid rain caused by industry.
Split into simpler sentences: The building was faced with red brick and terracotta by Burmantofts. Terracotta was a common choice for early twentieth century buildings in Manchester as it was cleanable and resisted the pollution and acid rain caused by industry.