Construction Specialist with Over 12 Years of Experience in Brooklyn, NY

Interior / Exterior Waterproofing

Interior and exterior waterproofing are two different approaches to protecting a building from water infiltration and moisture damage. Here’s a detailed description of each method:

Interior Waterproofing:

  1. Assessment and Inspection:

    • Identify areas of water penetration, such as cracks in the foundation walls or floor, leaking windows, or moisture seepage through the walls.
  2. Interior Drainage Systems:

    • Install interior drainage systems, such as French drains or perimeter drains, along the interior perimeter of the basement or crawl space.
    • These systems collect and redirect groundwater and surface water to a sump pump for removal from the building.
  3. Sump Pump Installation:

    • Install a sump pump system with a pit to collect water from the interior drainage system.
    • The sump pump then pumps the collected water away from the building to prevent flooding and water damage.
  4. Vapor Barriers:

    • Install vapor barriers or moisture-resistant coatings on the interior walls and floors to prevent moisture from penetrating into the living space.
    • These barriers help to control humidity levels and reduce the risk of mold and mildew growth.
  5. Crack Repair:

    • Seal cracks and gaps in the foundation walls or floor using epoxy injections, hydraulic cement, or waterproofing membranes.
    • Repairing these cracks prevents water from seeping into the basement or crawl space.
  6. Interior Sealants:

    • Apply waterproof sealants or coatings to the interior surfaces of the basement or crawl space walls to create a barrier against moisture penetration.

Exterior Waterproofing:

  1. Assessment and Inspection:

    • Inspect the exterior of the building for signs of water infiltration, such as cracks in the foundation, deteriorated waterproofing materials, or poor drainage.
  2. Exterior Drainage Systems:

    • Install exterior drainage systems, such as French drains, curtain drains, or footing drains, around the perimeter of the foundation.
    • These systems collect and divert groundwater and surface water away from the building to prevent it from seeping into the foundation.
  3. Foundation Waterproofing:

    • Apply waterproofing membranes, coatings, or sealants to the exterior surfaces of the foundation walls to create a barrier against water penetration.
    • These waterproofing materials protect the foundation from water damage and help to maintain its structural integrity.
  4. Exterior Sealants:

    • Seal gaps, cracks, and joints in the exterior walls, foundation, and around windows and doors using exterior-grade sealants or caulking.
    • This helps to prevent water from infiltrating the building envelope and causing damage to the interior.
  5. Landscaping and Grading:

    • Ensure that the grading around the building slopes away from the foundation to promote proper drainage.
    • Install gutters, downspouts, and extensions to direct roof runoff away from the building and prevent water from pooling around the foundation.
  6. Window Well Installation:

    • Install window wells around basement windows to prevent water from pooling against the foundation and seeping into the basement.
    • Ensure that window wells are properly graded and drained to prevent water accumulation.

By employing a combination of interior and exterior waterproofing methods, buildings can be effectively protected from water infiltration and moisture damage, ensuring a safe, dry, and comfortable living environment.

Construction Specialist with Over 12 Years of Experience in Brooklyn, NY

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