Demolition

Demolition, otherwise known as razing or wrecking, is a process in which buildings are torn down. Demolition is different from deconstruction, which is carefully taking a building apart to reuse its parts. For small buildings, such as houses, demolition is often simple. Buildings are often pulled down with excavators, bulldozers or cranes. Other specialized equipment may also be used. Larger buildings may use a wrecking ball swung by a crane. This works well for masonry buildings. Sometimes building implosion is used. This involves using explosive charges. If done correctly, the building falls in on itself and not on nearby buildings.

Preparation
Before a building can be torn down, several things have to happen. A demolition permit has to be obtained from a city, town or county. All hazardous waste must be removed. This includes asbestos, lead paint and any flammable materials. All utilities (water, electricity and natural gas) have to be disconnected. Many municipalities have checklists of what to do before a building can be demolished and things that must be removed first.

Related pages
 Construction
Slighting

References