Types of waterproofing

Please correct me if I am wrong!

Main types of water proofing are:

  1. PVC: This type is welded and requires a protection screed layer.
  2. HDP: This type does not require a protection screed layer.
  3. Bitomeneous: This type is torch applied and requires a protection screed layer.

Thanks in advance

One thought on “Types of waterproofing

  1. Eagle says:

    The most common used types of waterproofing in the construction industry are:

    1. Cementitious waterproofing: Mainly used in the internal wet areas like toilets and its semi-flexible, preferably used in areas not exposed to sunlight and weathering.

    2. Liquid waterproofing membrane: A thin coating which consists of usually a primer coat and two coats of top coats. This type offers more flexibility than the cementitious types of waterproofing. The elongation properties of the coating can reach as high as 250%.

    3. Bituminuos coating: A bitumen based materials and it is not suitable for expose to sunlight as it becomes very brittle and fragile when long exposure to the sunlight unless it is modified with more flexible material such as polyurethane or arcylic based polymers

    4. Bituminuous membrane: Is a torch applied on membrane and self-adhesive membrane. This type is more preferred because of its shelf life and ease of use during application. There’re two types; exposed and covered (which needs to have a protection screed layer on top of it). It must be applied fast as the bonding property of the membrane is reducing through time.

    5. Polyurethane liquid membrane: Mainly used for the flat roof areas and exposed to weathering but it is expensive. It can offer higher flexibility indeed! It is very sensitive to moisture content present.

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