Roof Inspection : The roof should be inspected at least twice a year before and after the winter season and it is also advisable to make an inspection after a severe storm. The constant expansion and contraction of roofing material due to changes in temperature will eventually cause cracking. Metal roofs are subject to rust and corrosion, especially at the points where joined or nailed. Periodic inspection will reveal damaged or worn sections. Prompt repair will prevent loss from leaks and will add to the life of the roof itself.
Care of Concrete Floors. Grease may be removed from concrete floors with a mild acid or alkali cleaner. The floor is first wetted, the cleaner is sprinkled uniformly over the section to be cleaned, allowed to soak for a time, and then brushed. Either alkali or acid will attack concrete and will eventually cause pitting. After use of the cleaner, the floor should be thoroughly rinsed with hot water.