Asbestos Removal

Information

Roof Replacement

Studies reveal that contains materials that have fatal health effects. As they pose health hazard, the use of for sheeting or its use in any construction has been banned now. However it was used widely between the 1940s and 1980s.

Asbestos Information

In fact, it was one of the most prominent product that was used in over 5000 construction material or product used in this industry. has a chemical composition that allows the material to break down easily into very thin fibres. If these break down they can be identified only using a microscope at it would be about 700 times smaller than human hair.  When the sheets or any other product that has been made using this breaks down, these thin fibres circulate in the air for days and can be easily inhaled. When it reaches the person’s lungs it can cause severe effects. OneOne of the main reasons why it has been banned is because, these fibres are considered to be virtually indestructible as they are resistant to heat and most of the chemicals. This makes it a very environmentally stable one and one of the best insulators.

Types of :

Different 3 types of available:

  1. Chrysotile (“white” – a member of the serpentine group)
  2. Crocidolite (“blue” – a member of the amphibole group)
  3. Amosite (“brown” or “grey” – a member of the amphibole group)

As per law, any material that contains (ACM’s) is divided into 2 groups: Friable and Bonded.

Bonded :

This is the most common type of which is found in buildings that were constructed between 1940 and 1980’s. Few of the products that fall under the categories are:

  • Flue pipes
  • water pipes
  • Roof shingles
  • textured paint
  • the flat sheets used in flashings
  • profiled sheets that are used in wall and roofs
  • vinyl floor tile
  • imitation brick cladding
  • Products used for providing friction like clutch housing, brake shoes, elevator brakes and disc pads
  • Plaster patching compounds.

Only people holding ‘B’ class licence are allowed to remove the bonded of 10m 2 or more. This license is given only to the applicants who have experience and also demonstrate skill removing bonded as per the removal code.

Friable :

Friable can be easily broken down or reduced to powder, even by hand. They are commonly found in the following products:

  • thermal insulation
  • sprays used on fireproofing
  • sprays used on thermal insulation or soundproofing
  • Acoustic plaster soundproofing.

Removal of friable can be done by anyone who holds a license to remove as per the removal code which requires an ‘A ‘class licence.

Where is found?

Prior to 1990s, it was common site to find in most of the dwellings like residential buildings, workplaces and commercial buildings. However, after the ban, new installations have not been done, but there is a possibility of second-hand items being installed. Apart from this, it can be found in products that provide friction like brake disc pads, elevator brakes and so on. However, it is not possible to identify the presence of by looking at a product. It has to be analysed in a laboratory. While going through the labels of any products, if it says that it contains , one should consider the presence of it.

Commercial buildings:

Prior to 1980s was most one of the major contributor to the building industry and it was used in almost every commercial building. They can be found in the cement sheeting, pipelines, insulators and many such places in our commercial building. Only after it was recognised to have health hazards new installations were banned.

Houses and other dwellings:

The flat sheets used for roofing mainly contained . Further, it was also used on walls to provide insulation. In most cases, painted fibres do not pose any threat. But that is not the case in other uses. In fact, the thermal insulations and acoustic insulation is contained friable which will get easily broken into minute particles with minimal impact. This posed great health issues. For this reason alone, the law states that friable should be used only by a person who holds an ‘A’ license for removal after 1 Jan 2006. This license is given only to the applicants who have experience and also demonstrate skill removing bonded as per the removal code.

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