7 Steps for Waterproofing Exterior Walls

On longer exposures to rainwater or high humidity, water and moisture can travel through the structure and hamper your internal walls. Your walls may remain damp for a long time, which may further lead to mould growth and irreparable damages. Peek through the following 7 steps for complete waterproofing of your exterior walls.

  1. Use plaster waterproofing: Plastering can help improve aesthetics, make walls robust, and protects against moisture ingress. Thus, you can do away with water infiltration by merely adding a waterproofing mixture to the plaster.
  2. Clean your gutters: Clogged gutters not only flow over the edge under the walls but also retain rainwater, which may gradually be absorbed by the structure. You can avoid such damages by cleaning gutters twice a year.
  3. Select the right waterproofer: Plenty of waterproofing products are available today; you must make the right choice. There is concrete waterproofing in which a cement-like product adheres to concrete permanently. Silicate-based concrete sealer reacts with the ingredients in the masonry to form a waterproofing coating. The waterproofing paint delivers better waterproofing performance. While selecting a product for waterproofing walls, it is essential to choose a breathable formulation.
  4. Apply the waterproofer: Use a roller or a brush to apply the waterproofer. In case of applying the second coat, let the first coat dry thoroughly before applying the second coat. Use enough amount of material for waterproofing walls against infiltration.
  5. Prepare walls for waterproofing: Irrespective of the waterproofer you are going to use, you have first to bring your walls in good condition. You need to use a good-quality filler for cracks and patch holes. Allow the filler to dry before grinding. You have to make sure that rough, uneven areas are taken care of. Remove dust on the walls, cleaning them with water. Let the walls dry entirely to ensure excellent adhesion between the substrate and the waterproofer.
  6. Check for faults: Waterproofing external walls is the best solution when the walls become damp. Before waterproofing walls, check if there is any other cause for the dampness. To your surprise, you may find anything from cracks in bricks or condensation in the wall to a leaking water pipe. Once such issue, if any get fixed, you can go on with waterproofing walls.
  7. Test: You can conduct a water-tightness test to evaluate the effectiveness of the material used for waterproofing walls. In this test, water is sprayed on the wall surface for a couple of hours. If a moisture meter shows that there is no moisture, your waterproofing material passes the test.
7 Steps for Waterproofing Exterior Walls
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