There are two types of waterproofing available: both liquid-based and sheet-based. A reputable waterproofing contractor Gauteng can advise you on which to use for your roof or balcony waterproofing project.
Liquid applied waterproofing membranes are sprayed or brushed onto surfaces using liquid. You can adjust the thickness of your membrane by applying less or more liquid to certain areas. Avoid making the membrane too thin. Thin membranes can tear easily, which could lead to water getting underneath and causing damage. Because liquid membranes are seamless and do not require any joints, roof repair contractors prefer them.
Sheet-applied waterproofing membranes – This type of waterproofing is available in sheets that are rolled onto the area to be waterproofed. The waterproofing sheets can then be applied with a blow torch. Most waterproofers allow for an overlap, which when heated creates a waterproof joint. Water cannot seep through the sheets.
These are the qualities of good quality waterproofing:
UV protection – UV exposure can cause permanent sunburns to waterproofing. This is why it must be UV resistant in order to avoid any sun damage.
Elasticity – The membrane must have some flexibility. This allows the membrane to move with the foundation and over cracks.
Tearproof – Waterproofing that doesn’t tear is what you want. You don’t want the membrane to tear and allow water in.
Breathable membranes can be made to breathe. The membranes allow water to flow through them as vapour. This ensures that water doesn’t remain stagnant on the structure if it does.