Concrete blockwork – leaking through cladding

Cause

Cracks in the concrete block

Repair

  • if water entry is through the cladding is suspected, employ a building surveyor to check the moisture levels of the structure
  • scrape and/or sand off loose paint to leave a clean, sound surface. Allow to dry out thoroughly. Prime; paint with a minimum two coats of paint suitable for concrete masonry

Cause

Paint or sealant failure

Repair

  • if water entry is through the cladding is suspected, employ a building surveyor to check the moisture levels of the structure
  • scrape and/or sand off loose paint to leave a clean, sound surface. Allow to dry out thoroughly. Prime; paint with a minimum two coats of paint suitable for concrete masonry

Cause

Junctions with other claddings and/or roof poorly detailed/constructed

Repair

  • if water entry is through the cladding is suspected, employ a building surveyor to check the moisture levels of the structure
  • scrape and/or sand off loose paint to leave a clean, sound surface. Allow to dry out thoroughly. Prime; paint with a minimum two coats of paint suitable for concrete masonry

Cause

Moisture absorption through the masonry when left unpainted

Repair

  • if water entry is through the cladding is suspected, employ a building surveyor to check the moisture levels of the structure
  • scrape and/or sand off loose paint to leave a clean, sound surface. Allow to dry out thoroughly. Prime; paint with a minimum two coats of paint suitable for concrete masonry