Waterproofing

Waterproofing Near Me – Waterproofing Services Ottawa – Types, Methods, and Applications

What is Waterproofing?

Waterproofing is the method of rendering an item or structure waterproof or water-resistant such that it stays untouched mainly by water or resists water ingress under specified conditions. You may find such products in wet conditions or at specific depths underwater.

Waterproofing in Buildings

Creating a waterproof barrier over the surfaces of foundations, roofs, walls, and other structural members are known as waterproofing. The impermeable barrier’s purpose is to prevent water penetration. The surfaces of the buildings are rendered water-resistant and, in some cases, waterproof.

In the waterproofing of structures, liquid waterproofing membrane, cementitious materials, polyurethane liquid membrane, and bituminous plastic are often used.

Waterproofing is needed for basements, walls, toilets, kitchens, balconies, decks, terraces, or roofs, green roofs, water tanks, and swimming pools, among other things.

What are the types of waterproofing?

Cementitious water-proofing, liquid water-proof membrane, bituminous membrane and polyurethane liquid membrane are the most common forms of water-proofing.

1. Cementitious Waterproofing

Cementitious waterproofing is the simplest form of building waterproofing. Materials for cementitious waterproofing are readily available from masonry component manufacturers. They’re also simple to combine and apply.

The cementitious waterproofing technique is used in internal damp areas such as toilets. As a result, it does not go through the contracting and expanding process.

Applications of Cementitious Waterproofing

  • Dams
  • Bridges
  • Tunnels
  • Parking structures
  • River locks/channels
  • Water treatment plants
  • Railway and subway systems
  • Sewage treatment facilities
  • Marine cargo ports and docks

2. Liquid Waterproofing Membrane

A primer coat and two topcoats make up the liquid membrane. Coatings are applied using a sprayer, roller, or trowel. The liquid coating is thinner and more flexible than cementitious waterproofing methods.

The liquid hardens into a flexible layer on the wall. The coat’s elongation properties will achieve a maximum of 280 percent. The consistency of the waterproofing coating is determined by the form of polymer used by the manufacturer to create the liquid waterproofing.

A spray-applied liquid film of polymer-modified asphalt may be used as a liquid waterproofing barrier. Polyurethane liquid membranes in the trowel, roller, and spray grades are also available from different manufacturers.

3. Bituminous Coating Waterproofing

Bituminous coating (asphalt coating) is made of materials derived from bitumen. It offers a lightweight, polymerized protective layer depending on its grade formulation. The polymer grade and fibre strengthening will affect stability and water protection.

Bituminous coatings are most often seen in damp environments under screeds. It is an excellent protective coating and waterproofing agent, especially on surfaces such as concrete foundations.

It should not be exposed to sunlight until modified with a more flexible material such as polyurethane or acrylic-based polymers.

4. Bituminous Membrane Waterproofing

Because of its validated efficiency, bituminous membrane waterproofing is a standard solution for low-sloped roofs. The self-adhesive bituminous waterproofing membrane has a torch on the layer.

Asphalt, polymers, and filler are standard components of self-adhesive compounds; additional resins and oils can be used to enhance adhesion properties. The self-adhesive form has a short shelf life because the bonding properties of the membrane deteriorate over time.

There are two kinds of torch-on membrane: exposed and shielded. The exposed layer also contains granular mineral aggregates to support wear and tear., the exposed layer often contains granular mineral aggregate. The contractor must add one defensive screed to prevent the membrane from being punctured for the other kind of membrane.

5. Polyurethane Liquid Membrane Waterproofing

For the flat roof region and subject to weathering, the polyurethane liquid insulation membrane process is used. However, this waterproofing process is costly.

Polyurethane Liquid Membrane can have more excellent stability. However, polyurethane is very susceptible to moisture levels. As a result, before application, the moisture content of the concrete slab must be carefully evaluated; otherwise, peeling or de-bonding of membranes can occur after some time.

Frequently Asked Questions about Waterproofing Types, Methods, and Applications

What is the purpose of waterproofing?

The waterproofing aims to keep water from penetrating concrete surfaces.

Where is waterproofing used?

Waterproofing is needed for basements, walls, toilets, kitchens, balconies, decks, terraces, or roofs, green roofs, water tanks, and swimming pools, among other things.

What are the applications of cementitious waterproofing?

  • Dams
  • Tunnels
  • Bridges
  • Parking structures
  • River locks/channels
  • Water treatment plants
  • Railway and subway systems
  • Sewage treatment facilities
  • Marine cargo ports and docks


What is liquid membrane waterproofing?

The liquid membrane is made up of a primer coat and two topcoats. Coatings are applied using a spray, roller, or trowel. The liquid coating is thinner and more flexible than cementitious waterproofing.

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