The Pros and Cons of Various Methods for Waterproofing Outside Walls

Outside walls are susceptible to water damage from rain, snow, and ice. This can lead to mould, mildew, and structural damage. Waterproofing outside walls can help to prevent these problems.

There are a number of different methods for waterproofing outside walls. Some of the most common methods include:

Bituminous coatings: Bituminous coatings are made from asphalt or coal tar. They are applied to the surface of the wall and form a waterproof barrier. Bituminous coatings are relatively inexpensive and easy to apply. However, they are not as durable as some other methods and may need to be reapplied more frequently.

Epoxy coatings: Epoxy coatings are made from two parts: resin and hardener. They are applied to the surface of the wall and form a strong, durable waterproof barrier. Epoxy coatings are more expensive than bituminous coatings, but they are also more durable and may last longer.

Polyurethane coatings: Polyurethane coatings are made from two parts: resin and hardener. They are applied to the surface of the wall and form a flexible, waterproof barrier. Polyurethane coatings are more expensive than bituminous coatings, but they are also more flexible and may last longer.

Injection: Injection is a method of waterproofing that involves injecting a waterproofing material into the cracks and voids in the wall. This can be done with a variety of materials, including resins, foams, and gels. Injection is a more expensive method of waterproofing, but it can be very effective in preventing water damage.