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MASTIC ASPHALT

Mastic Asphalt is a building material used for paving, roofing and flooring. When exposed to extremely high temperatures, Mastic Asphalt forms a thick liquid substance which can be poured and spread over a surface.

The primary use of Asphalt is for waterproofing due to its impervious waterproofing qualities. This is attributed to its high concentration of bitumen and of course bitumen is a bi product of the petroleum refinement.

as the oil industry has increased in technology, they have extracted more out of the raw material, therefore the bi products did not contain as many properties as the original Trinidad Asphalt resulting in the inclusion of polymer compounds and additives to create its flexibility. The result being these additives are not so UV stable, therefore cracking and splitting occurs far more prematurely than the original Asphalt.

It is also interesting to note that as the material contains petroleum based products in the form of bitumen, it not only has noxious odour but may produce hazardous fumes long after it has been installed.

Finally like all asphalt products they have to be worked at extremely high temperatures therefore creating hazards when working with this product.

ADVANTAGES OF USING MASTIC ASPHALT

  • 1. Proven track record for durability
  • 2. Recyclable
  • 3. Carbon Zero
  • 4. Installed by trained craftsmen
  • 5. Fire performance – Virtually incombustible
  • 6. Flame free application
  • 7. Best value for money – 60 life cycle
  • 8. Scope of use
  • 9. Attractive finish

WHAT ARE THE DISADVANTAGES OF ASPHALT FOR WATERPROOFING?

  • Degraded by heat and UV
  • Strain is caused on roof covering by thermal movement
  • Unpleasant odours released during installation
  • Installation with the use of flame and boiler
  • More lengthy and labour intensive installation processes than single ply membrane
  • Prone to splitting and cracking after exposure to UV
  • Colour fading
  • Difficult to achieve consistent depth of waterproofing layer
  • High weight per m² thus creating more strain on the roof structure

DID YOU KNOW?

20 tonne of asphalt will equate to 5 rolls of single ply membrane so in terms of effectiveness and efficiency the modern technology of waterproofing is far more sustainable.