S T M Damp

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g/f apartment damp problem

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S T M Damp

  1. 1. Seaterra Marina Water ingress to ground floor apartments (hit arrow key  for next slide)
  2. 2. Block F <ul><li>Note the floor height (ground floor) above the surrounding ground levels </li></ul>
  3. 3. Section through block (NTS) <ul><li>(Presumed) damp membrane below </li></ul><ul><li>ground floor indicated by dotted </li></ul><ul><li>line. </li></ul>
  4. 4. Typical floor build up (assumed for ST Marina) <ul><li>Floor tile </li></ul><ul><li>Floor screed </li></ul><ul><li>Concrete floor </li></ul><ul><li>Damp proof membrane </li></ul><ul><li>Free draining granular fill </li></ul>
  5. 5. Winter rain in Cyprus
  6. 6. Rainwater laying on balcony
  7. 7. Winter rainfall <ul><li>Winter 2007/8 – dry winter causing drought conditions </li></ul><ul><li>Spring 2008 – few damp problems reported in apartments </li></ul><ul><li>Winter 2008/9 – very wet winter </li></ul><ul><li>Spring 2009 – damp problems apparent in ground floor apartments </li></ul><ul><li>Winter 2009/10 – wet winter </li></ul><ul><li>Spring 2010 – damp problems persist </li></ul><ul><li>A clear connection between high rainfall and water ingress to ground floor apartments </li></ul>
  8. 8. Water penetration <ul><li>Water puddles on the first floor balcony, penetrates & finds a route down the hollow clay wall blocks and chases for services. </li></ul>
  9. 9. Problems ahead! <ul><li>Water begins to accumulate beneath the floor being trapped by the damp barriers installed during construction. </li></ul>
  10. 10. “ Rising damp” <ul><li>The water having nowhere to escape travels back up the wall appearing as “rising damp” </li></ul>
  11. 11. Damp at glazed elevation <ul><li>Worst levels of damp appear in the area directly below the balcony above. Note the column on the right is the line of the 1 st floor apartment external wall. </li></ul>
  12. 12. Damp floors
  13. 13. Damp walls
  14. 14. Damp ceilings

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