What is Roof Waterproofing Product?
Roof water insulation is a protection process that is designed to apply on the roofs of buildings, using waterproof materials. Roof waterproofing materials prevent possible leaks, acting as a barrier between the building, rain, and snow.
Best Roof Waterproofing Products In South Africa
The following waterproofing processes are commonly used in construction sites around South Africa :
1. Cementitious Waterproofing
2. Liquid Waterproofing Membrane
3. Bituminous Membrane
4. Bituminous Coating
5. Polyurethane Liquid Membrane
Cementitious Waterproofing Method:
Cementitious waterproofing is the easiest method of waterproofing in construction. The materials for cementitious waterproofing are easily available from suppliers of masonry products, and they’re easy to mix and apply.
This method is often used in internal wet areas such as toilets. This method is usually a rigid or semi-flexible type of waterproofing, but since it is used in internal areas such as toilets, it is not exposed to sunlight and weathering. Thus cementitious waterproofing does not go through the contract and expansion process.
Applications of Cementitious Waterproofing:
Cementitious waterproofing is used in the following type of structures:
- Water Treatment Plants
- Sewage Treatment Plants
- Bridges
- Dams
- Railway & Subway Systems
- Marine Cargo Ports & Docks
- River Locks/Channels & Concrete Dykes
- Parking Structures & Lots
- Tunnels
How long does roof waterproofing last?
Roofing waterproofing can last anywhere from 10 years to over 20 years. It all boils down to the quality of materials used, the type of waterproofing, and how well it was applied. Premium waterproofing solutions like RubberGard can last for as many as 50 years!
Which type of waterproofing is the most expensive waterproofing?
Polyurethane liquid membrane method
The polyurethane liquid membrane method of waterproofing is used for the flat roof area and exposed to weathering. This waterproofing method is expensive.
How thick should waterproofing be on a roof?
Most are about 2 to 4mm thick.
There are essentially 2 types of membranes, sheet-based membranes, and liquid-applied membranes.
Ideally, a waterproofing membrane should be strong, flexible, tear-resistant, and elastic so that it can stretch to cover cracks and also move with the building.
What is the cheapest method of waterproofing?
Bituminous Coating Waterproofing
It is the cheapest method of waterproofing. The bitumen is sprayed over the surface to provide a thin film that prevents the ingress of water.