10 Best Waterproofing Membranes 2026 in the United States

The LATICRETE 9235 Waterproofing Membrane Full Unit is designed for those looking to waterproof surfaces efficiently. Made from rubber, it ensures a high level of water resistance, making it ideal for use with materials like stone and tile. The product is liquid in form, which suggests it can be applied easily, even in challenging areas.

With a compact style and a decent package size of 6 gallons, it is suitable for both small and large projects. The membrane has UV resistance and chemical resistance attributes, ensuring that it remains durable and effective even when exposed to harsh conditions. Flexibility is a critical factor for waterproofing membranes, and the rubber material used likely contributes to its ability to flex without cracking.

Weighing 78.8 pounds, it is relatively heavy, so handling might require some effort. This product is particularly useful for those working on flooring and tiling projects, where durable waterproofing is essential. Consideration of the application method and potential handling challenges should be taken into account when planning a project with this membrane.

The MAPEI Mapeguard UM Underlayment Membrane is a high-performance solution for waterproofing and crack-isolation in ceramic tile, porcelain, and stone installations. It effectively shields against substrate cracks, ensuring long-lasting durability, and provides advanced waterproofing, making it suitable for wet areas like bathrooms and kitchens.

One of its strengths is its versatility, being compatible with various substrates such as concrete, plywood, and existing tile, which makes it easy to install in different settings. This product is lightweight and designed for quick application, which is beneficial for both residential and commercial projects.

The membrane comes in a sheet form and covers a sizable 323 sq. ft. area, making it efficient for large projects. It weighs 42 pounds and has dimensions of 39 x 16 x 16 inches. This product seems to suit those needing a robust and versatile waterproofing solution, especially in interior settings.

The Schluter Kerdi 108 Sq Ft Waterproofing Membrane is made from polyethylene, which is known for its durability and strong moisture protection. With an 8-mil thickness, it ensures uniform coverage and quick installation, making it suitable for various applications like tiled showers and bathtub surrounds.

The membrane is easy to install using the thin-set method, and its anchoring fleece helps secure tiles directly to the surface. This membrane is versatile and works well on multiple surfaces, including ceramic and stone tiles, providing robust waterproofing for walls and floors. Additionally, its compliance with California Specification 01350 means it meets high health and safety standards, suitable for green building projects.

This product is excellent for indoor waterproofing needs, particularly for tiled areas.