Cementitious waterproofing is a popular method for protecting basement systems against the threat of water damage. As the name suggests, this method uses a cement-based compound to create a seamless, waterproof barrier on the interior or exterior surfaces of the basement.
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Here are a few key points about cementitious waterproofing:
Material:
Cementitious waterproofing products are a blend of cement, sand, and special additives that improve the water-resistant properties of the mix. These compounds can come in a powder form that needs to be mixed with water before application.
Application:
The cementitious waterproofing compound is usually applied using a brush, roller, or spray. The thickness of the application can vary based on the product used and the specific requirements of the project, but it’s generally important to achieve a uniform, thick coating for optimal waterproofing.
Use:
This type of waterproofing is particularly well-suited to below-grade concrete structures like basements. Its adhesion properties work well with concrete and masonry, making it a durable and reliable waterproofing method.
Advantages:
Cementitious waterproofing compounds are relatively easy to apply and do not require advanced technical skills. They are also generally less expensive than other waterproofing methods and do not emit harmful vapours, making them a safe and cost-effective option.
Limitations:
While cementitious waterproofing is a good solution for many basements, it does have some limitations. It’s not as flexible as some other waterproofing methods, such as rubberised or polymer-based coatings. This can lead to potential issues in structures that have a lot of movement or shifting. It’s also not the best choice for dealing with high hydrostatic pressure.
Maintenance:
Cementitious waterproofing systems require minimal maintenance once installed. However, regular checks should be made to ensure no cracks have appeared that could let water in.
Complementary Solutions:
Cementitious waterproofing is often part of a broader basement waterproofing strategy that can include drainage systems, sump pumps, and membranes among other things.
Cementitious waterproofing provides a viable solution for many basements, offering an effective means of protection against water ingress. However, it’s important to consider all the specifics of your basement, including its use, condition, and exposure to moisture, to determine the best waterproofing solution. Consulting with PPS can help make sure you choose the right strategy for your situation.
