liquid waterproofing membrane play an important role in the protection of many buildings. These versatile waterproofing membranes can be applied by hand or by spraying on surfaces such as balconies, podium terraces and windowless roofs. They are also used by local authorities to prevent leaks in water storage tanks. These safety systems are also used to extend the life of buildings such as parking lots.
Benefits of liquid-based waterproofing membranes
Liquid-based waterproofing has many advantages, including
- Easy schedule – liquid waterproofing materials can often be applied in a short time. Depending on the product, a three-person crew can complete 10,000 square feet or 930 square meters of spray-on waterproofing in a very short time. These advantages are especially noticeable when waterproofing difficult areas or when great attention to detail is required. Waterproofing of pipes and various penetrations is easier than installing a narrow strip membrane.
- Seamless – as the liquid sealant cures to a stable membrane, there are no seams, which are the most common cause of waterproofing failures.
- Flexible – the most effective liquid sealants are flexible, increasing or decreasing in temperature and adapting to even the slightest movement of the structure. This allows them to remain watertight in the event of excessive weathering or small cracks in the concrete substructure.
Use of liquid waterproofing membranes
Liquid waterproofing membranes are often used for a variety of applications, including
- Green roofs – Liquid waterproofing membranes provide excellent protection to non-green roofs. Inexperienced roofs often have high levels of flooding for irrigation purposes. Liquid waterproofing membranes are easy to detail and use. Make sure the waterproofing system you choose is compatible with inexperienced roofs in similar conditions.
If you’re considering a green roof, make sure the waterproofing system you choose has passed a long-term root strength test to ensure it won’t be damaged when you’re dealing with plants.
- Inverted roofs – Some projects, such as flat roofs, use an inverted roof structure. In this case, the waterproofing material is placed under the normal roof insulation. The insulation is laid over the liquid waterproofing membrane and secured in place with slabs or gravel. Liquid waterproofing is suitable for this type of project because it is seamless. The liquid is easy to use. Once cured, it forms a stable membrane that prevents leaks.