Demolition Services: Methods of Building Demolition

Demolition is carried out differently depending on the nature of the building, the aims of the demolition and the proximity to other structures and amenities. It is also worth noting that building regulations stipulate the type of demolition that is allowable. Technical experts will come in handy in advising on the safest method of demolition guided by the prevailing circumstances. In this article, read about the various demolition services you might consider for your project.

Non-Explosive Demolition Method

This method of demolition makes use of equipment as opposed to the use of explosives to bring down a building. The equipment mostly used with this method include the excavator, wrecking ball and bulldozer. This method is appropriate for a gradual demolition intended to avoid damage to adjacent buildings. The non-explosive services include:

  • The high reach arm method: In this type of destruction, an excavator is used to bring down moderately tall buildings by hitting the topmost parts and then proceeding downwards to the foundation. The high reach method is however inadequate for tall buildings with a height of over 300ft since the excavators’ arm is not long enough
  • Wrecking ball method: A heavy steel ball suspended by a crane brings down a building strategically to the ground.

Explosive Demolition Method

This type of demolition uses explosives to tear down a building. The primary technique involves weakening the foundation and the columns of the building using carefully set explosives. The detonation of the explosives weakens and disintegrates the foundation, and hence the building comes down. Under the explosive services, two methods are available:

  • Tree fall: The demolished building falls on its side akin to the felling of a tree. This method is commonly used where there is sufficient space on either side of the building.
  • Falling on its footprint: The demolished building crashes on its foundation rather than to the side. This method is appropriate where the space is not large enough for the tree fall method.