What material is commonly used for waterproofing basements?

Rubber membranes are widely used for waterproofing basements due to their excellent impermeability and flexibility. These membranes are often made from synthetic rubber or thermoplastic materials, allowing them to create a continuous barrier against water intrusion. Their installation as part of a waterproofing system helps to prevent moisture from seeping into the basement, which is crucial for maintaining a dry and structurally sound environment.

Unlike the other materials listed, rubber membranes are specifically designed to resist water and are highly effective in wet conditions. Wood shingles, fiberglass insulation, and brick veneer do not possess the necessary water-resistant properties needed for effective basement waterproofing. Wood shingles, for example, are often used for roofing but can absorb moisture and deteriorate over time if exposed to excess water. Fiberglass insulation is designed for thermal resistance, and while it can be valuable in a building's thermal envelope, it does not serve as a waterproofing solution. Brick veneer, while aesthetically pleasing and sometimes used for exterior walls, does not provide a waterproof barrier on its own. These factors emphasize why rubber membranes are the preferred choice for preventing water infiltration in basements.