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Asphalt Roofing

Asphalt Roofing

What is the difference between felt and asphalt? Felt is on a roll and is installed one strip at a time. Asphalt is applied in wet form, like you would apply tar to a driveway, and is spread over the area of the roof. A layer of gravel is then spread across the top of the asphalt, whilst still wet, which helps to protect and prolong the life of the asphalt.

What is Asphalt?
Asphalt, which is also known as bitumen, is derived from crude oil. It is found in liquid or semi-solid form and is somewhat refined before being used. It varies in grade and consistency, with different types of asphalt being used for different purposes. In addition to roofing, it is also used to cover roads, parking lots, tennis courts and driveways.

What’s great about asphalt?

  • Durable: when placed on flat surfaces, asphalt can last up to 30 years.
  • Can absorb heat, making it more energy-efficient to use in colder climates.
  • Shingles are available in a variety of colours.
  • Poured asphalt fits tightly around chimneys and vents, thereby preventing heat loss
  • When installed on flat roofs, asphalt allows the area to be used for gardening or as a seating area.

Disadvantages of Asphalt Roofing
Asphalt roofing does have some drawbacks and a few of these include:

  • Requires solar reflective coating on flat roofs in order to prevent cracking – this adds to the cost of installation.
  • Proper installation requires the use of experienced roofing professionals
  • Rolled asphalt is very heavy, so buildings that are not sturdy may collapse under the additional weight unless extra supports are added – clearly Zest Roofing would assess this situation and advise of any risks before estimating for the works.