Exterior waterproofing is a set of applications made to protect the exterior walls of a building from the harmful effects of water. Rain, snow, humidity and other environmental factors can cause cracks, blistering and even mold on the exterior of buildings over time. Such problems not only spoil the aesthetics of the building, but can also jeopardize its structural integrity. This is exactly where exterior waterproofing comes into play.
There are many different waterproofing material and methods. Among the most common are membranes, liquid applications and insulating plasters. Each material has its own advantages and disadvantages, so the right choice should be made according to the characteristics and needs of the building. Exterior waterproofing is of great importance not only for new buildings, but also for protecting and extending the life of existing buildings. In this way, both financial losses are prevented and healthier and safer living spaces are created.
Importance and Benefits of Exterior Waterproofing
Thanks to waterproofing, buildings are protected from rain, snow, moisture and other external factors, ensuring their structural integrity. This prevents cracks, blistering, mold and even rotting on the walls. In addition, the energy efficiency of the building increases thanks to waterproofing. Waterproofing in combination with thermal insulation provides a more balanced temperature indoors and contributes to energy savings by reducing heat losses.
The benefits of exterior waterproofing are not only structural and economic, but also important for health and quality of life. Water leaks and dampness can set the stage for the growth of mold and bacteria indoors. This can lead to serious health problems, especially for allergy sufferers or those with respiratory diseases. Thanks to exterior waterproofing, such risks are eliminated and healthier living spaces are created. As a result, exterior waterproofing is not only a cost, but also an investment in the future. It increases the value of buildings, extends their lifespan and improves the quality of life.
Materials Used in Exterior Waterproofing
The materials used in exterior waterproofing may vary according to the characteristics of the building, regional climatic conditions and budget. The most commonly used materials include bituminous membranes, PVC membranes, EPDM membranes, polyurethane-based liquid membranes, cement-based waterproofing mortars and acrylic-based waterproofing paints.
Let’s list some basic materials used in exterior waterproofing:
- Bituminous Membranes: Generally made of asphalt or polymer modified bitumen, they are highly waterproof materials.
- PVC Membranes: Durable and flexible membranes made of thermoplastic polyvinyl chloride.
- EPDM Membranes: Long-lasting and weather-resistant membranes made of synthetic rubber.
- Acrylic Based Liquid Membranes: Water-based, flexible and UV resistant materials.
- Polyurethane Based Liquid Membranes: High performance, elastic and chemical resistant materials.
- Cement Based Liquid Membranes: Highly waterproof, easy to apply and economical materials.
- Cement Based Insulation Plasters: Materials similar to traditional plaster applications, containing waterproofing additives.
- Polymer Modified Insulating Plasters: Higher performance, flexible and crack resistant materials.
- Water Repellent Sprays: These are products applied to surfaces, which reduce the absorption of water and provide pilling.
- Filling Materials: Materials used to fill cracks and gaps and provide waterproofing.
- Primers: Products used for surface preparation and better adhesion of the insulation material.
Waterproofing Paint You can use Painter Flex as a waterproofing paint on the exterior of your building.
How is Exterior Waterproofing Done?
Exterior waterproofing application may vary depending on the material and method chosen. However, the following steps are generally followed:
- Surface Preparation: The surface to be insulated must be clean, dry and smooth. Old paints, plasters or other residues on the surface should be cleaned, cracks and gaps should be filled.
- Primer Application: Primer is applied to ensure better adhesion of the surface to the insulation material. The primer is selected according to the type of insulation material.
- Insulation Material Application: The selected insulation material is applied to the surface in accordance with the manufacturer’s instructions. In membrane applications, membranes are fixed to the surface by heating or gluing. In liquid applications, the material is spread on the surface by brush, roller or spraying method. Insulation plasters are applied to the surface like normal plaster.
- Protective Layer Application (if required): It may be necessary to apply a protective layer on some insulation materials. This layer protects the insulation material from external factors and extends its life.
- Final Coat Paint or Coating Application: After the insulation application is completed, paint or coating can be applied to give an aesthetic appearance to the exterior of the building.
Waterproofing with the right choice of material and professional application is not only a cost, but also an investment in the future. It increases the value of buildings, extends their lifespan and improves the quality of life. It should not be forgotten that getting support from experts in waterproofing is critical for the success of the application.
