Case Study: Waterproofing & Structural Repairs for a Pharmacy in Phoenix

Location: Phoenix, KwaZulu-Natal
Project: Restoration and Waterproofing of the Pharmacy’s Back Wall
Issue: Severe dampness penetration due to structural cracks, poor plastering, and inadequate preparation during the original construction.

Overview:

A pharmacy in Phoenix was experiencing extreme damp issues along its back wall, which affected both the structural integrity of the building and indoor conditions. The wall had visible cracks, peeling paint, and moisture ingress due to subpar construction practices. The problem needed structural repairs and a long-term waterproofing solution to prevent further deterioration and ensure the safety of the structure.

Problem Diagnosis:

Upon inspection, several key issues were identified:

  1. Multiple cracks across the surface, both minor and structural, allowing moisture ingress.
  2. Poor plastering and preparation during the initial build, leading to weak adhesion and surface deterioration.
  3. Lack of effective waterproofing measures, making the wall vulnerable to moisture penetration.
  4. Expansion joint weaknesses, leading to movement-related cracks that worsened over time.

Solution Implementation:

Target Roofing & Waterproofing executed a comprehensive waterproofing and restoration strategy, ensuring the wall was fully sealed and protected from further moisture damage. The process included:

High-Pressure Cleaning

  • Removed dirt, loose paint, and previous coatings to create a clean and stable surface for repairs.

Full Skimming & Crack Repairs

  • All visible cracks were opened, cleaned, and sealed using high-performance crack-filling compounds.
  • Structural cracks were treated with polyurethane sealers and silicone expansion joint treatments to accommodate movement and prevent future cracking.
Membrane Application

  • High-risk areas prone to movement-related cracks were reinforced with waterproof membranes, ensuring flexibility and durability.

Primer & Multi-Coat Painting

  • A full primer coat was applied to enhance adhesion and longevity.
  • Three coats of high-quality exterior wall paint were used, offering additional protection against moisture penetration and weather elements.

Outcome:

  • The dampness issue was immediately resolved, preventing further moisture ingress into the pharmacy.
  • The aesthetic and structural integrity of the back wall was fully restored.
  • The application of high-performance waterproofing solutions provided long-term durability.
  • A 7-year guarantee was provided, ensuring peace of mind for the client.