EXTERNAL WATERPROOFING

• External waterproofing is a process of applying waterproofing materials to the exterior surface of a building to protect it from water infiltration. Here's a general overview of the process:

  
  
  • 1. Surface Preparation: Cleaning the exterior surface of the building to remove any dirt, dust, or debris. Repair any visible cracks or damaged areas using suitable repair materials
  
  
  • 2. Assessment and Planning: Assessing the condition of the building's exterior and identify areas prone to water infiltration, such as foundation walls, basement walls, and exterior walls. Develop a waterproofing plan based on the specific needs of the building.
  
  
  • 3. Selection of Waterproofing Materials: Choosing appropriate waterproofing materials based on the building's construction, location, and budget. Common materials used for external waterproofing include liquid-applied membranes, sheet membranes, bituminous coatings, and cementitious coatings.
  
  
  • 4. Application of Waterproofing Membrane: Applying the selected waterproofing membrane to the exterior surface of the building using a brush, roller, or sprayer, following the manufacturer's instructions. Ensure that the membrane is applied evenly and covers the entire surface to create a seamless barrier against water infiltration.Protection and Reinforcement: In areas prone to heavy water exposure or potential damage, such as below-grade walls or foundation walls, consider adding additional protection or reinforcement layers. This may involve installing drainage boards, drainage mats, or geotextile fabrics to enhance the waterproofing system's effectiveness.
  
  
  • 5. Allowing the waterproofing membrane to cure and dry according to the manufacturer's instructions. This may involve a waiting period of several hours or days, depending on the product and environmental conditions.Backfilling and Landscaping: Once the waterproofing membrane is fully cured, backfill any excavated areas around the building and restore landscaping as necessary. Ensure that the grade slopes away from the building to prevent water from pooling around the foundation.
  
  
  • 6. Regular Maintenance: Implementing a regular maintenance schedule to inspect the exterior waterproofing system and address any signs of damage or deterioration promptly. Clean the surface periodically to remove dirt, debris, and other contaminants that may compromise the waterproofing system's effectiveness.