Waterproofing and Egress Experts

Below grade waterproofing is a type of waterproofing system that is used to protect the foundation and basement walls of a building from water infiltration. It involves the application of a waterproofing membrane to the exterior or interior of the foundation walls to prevent water from entering the basement or crawl space.

Below grade waterproofing is critical in ensuring the longevity and structural integrity of a building. If water is allowed to seep into the foundation walls, it can cause damage to the concrete and lead to the growth of mold and mildew, which can be harmful to the health of the occupants. In addition, water infiltration can cause the foundation to shift and settle, leading to costly repairs.

There are several types of below grade waterproofing systems, including:

• Sheet Membrane Waterproofing: This system involves the installation of a waterproofing membrane that is made of rubberized asphalt or polyethylene. The membrane is applied to the exterior of the foundation walls to provide a barrier against water infiltration.
  
  
• Liquid Applied Waterproofing: This system involves the application of a liquid waterproofing material to the exterior or interior of the foundation walls. The material is sprayed or brushed onto the surface of the foundation and then allowed to cure, creating a seamless, waterproof membrane.
  
  
• Bentonite Clay Waterproofing: This system involves the use of a bentonite clay layer that is applied to the exterior of the foundation walls. The clay forms a waterproof barrier when it comes into contact with water, preventing water from entering the basement.

Overall, below grade waterproofing is an important step in protecting a building from water damage and ensuring its longevity. It is recommended that a qualified professional be consulted to determine the best type of waterproofing system for a particular building.

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