Types of Waterproofing Materials

Waterproofing materials are products used to protect against water intrusion.

They can be used on both interior and exterior surfaces, such as roofs, walls, foundations or basements. Commonly available waterproofing products come in a variety of types, each with its own unique set of qualities.

Types of Waterproofing Materials

1) Polyurethane

Polyurethane is a great choice for waterproofing because it can be applied seamlessly and it covers surfaces evenly. This means that even the tiniest cracks in concrete are filled, preventing water from seeping in.

Polyurethane has many benefits, such as being resistant to oil, detergents, and chemicals. It is a bit expensive, but it can be applied to walls, balconies, terraces, and roofs due to its versatility.

2) Cementitious Coating

Cementitious coating is a widely-used waterproofing material due to its affordability and ease of application. This material forms a protective barrier that prevents water and other substances from penetrating surfaces.

However, it should be noted that cementitious coatings can develop cracks as a result of factors such as temperature changes or external elements. Therefore, their inflexibility limits their use to only basements and foundations.

3) EPDM Rubber

Ethylene-propylene diene monomer (EPDM) rubber is a synthetic material popularly used on flat roofs with little to no slope. It is flexible and highly resistant to ultraviolet rays and other extreme conditions, making it ideal for roofing applications.

Unlike polyurethane, EPDM rubber does not require an additional layer of protection. It is also easy to install and maintain, making it a cost-effective solution for waterproofing flat surfaces.

4) Rubberized Asphalt

Rubberized asphalt is a highly durable waterproofing material frequently employed on commercial building rooftops. It creates a solid, unbroken barrier that attaches and secures to all surfaces, providing excellent water resistance.

However, rubberized asphalt can be costly to use. Additionally, due to the difficulty of installation in colder conditions, it should only be applied during the warmer months.

5) Polyolefin (TPO)

Thermoplastic polyolefin (TPO) is a durable and long-lasting waterproof material that can last up to 50 years. It is versatile and can be applied in both hot and cold temperatures with ease. Its reflectivity has the added benefit of reducing energy bills as less heat is absorbed by the roof.

Additionally, it has high puncture and tear resistance. Its high elastomer content allows for great flexibility and impact resistance. However, it is more expensive compared to other materials.

6) Bituminous Membrane

The bituminous membrane is a waterproofing material made of asphalt, rubber, and resin that forms an impermeable layer to stop water from penetrating surfaces. It is highly flexible, making it ideal for outdoor areas subject to extreme temperature changes like balconies, terraces, and walkways.

It can stay intact for more than 20 years and is easy to install at a low cost. However, it is not environmentally friendly or sustainable since it is derived from crude oil.

7) PVC Waterproofing Membrane

PVC waterproofing membrane is a popular choice for commercial and residential buildings due to its high durability and resistance. Nonetheless, it comes at a higher cost due to its high quality.

It has low permeability, preventing water and moisture from entering the structure. Moreover, it can be applied in different ways, making it perfect for roofs, walls, foundations, and other surfaces. It also has good thermal and chemical resistance.

Takeaway

These are just some of the waterproofing materials available. Each material has its benefits and drawbacks, so it is important to choose one that best suits your needs. When in doubt, it is always best to consult a professional contractor for advice.

If you are looking for waterproofing services for your home, our professionals are always ready to help.