WHAT DOES RISING DAMP IN A HOUSE WALL MEAN?

WHAT DOES RISING DAMP IN A HOUSE WALL MEAN -WHICH IS A COMMON PROBLEM?

Rising damp is a common building problem that occurs when moisture from the ground moves upward through the bricks and mortar of a building.

This usually happens when the Damp-Proof Course (DPC) has failed, been damaged, or has been bridged by soil or other materials.

HOW CAN YOU RECOGNISE RISING DAMP?

Look out for these common warning signs:

 Brown or yellow tide marks – Discolouration often appears along the lower part of walls, sometimes reaching up to about 1 metre.

 Peeling paint or damaged plaster – Paint may bubble or peel, while plaster can become soft, cracked, or crumble away.

 White salt deposits – You may notice white, powdery or crusty marks on the wall. These are salts brought to the surface as moisture evaporates.

 A musty smell – Persistent damp or earthy odours, particularly near the bottom of walls, can be a warning sign.

 WHAT CAUSES RISING DAMP?

Several factors can contribute:

• A failed or damaged DPC

• Soil, paving, mulch or garden beds bridging the DPC

• Poor drainage around the building

• Leaking pipes or defective gutters

• Exterior ground levels that are too high against the walls

HOW IS RISING DAMP TREATED?

The correct treatment depends on the cause and extent of the problem. It may involve:

 Removing salt-contaminated plaster

 Installing or restoring a suitable damp-proof barrier

 Applying appropriate salt-resistant plaster/render

 Improving drainage around the building

 Repairing leaking pipes, gutters or other sources of moisture

 Important: Not every damp wall is caused by rising damp. Leaking plumbing, penetrating damp, condensation and drainage problems can produce similar symptoms.

If you are buying, selling or experiencing damp problems in your home, getting a professional building inspection can help identify the actual cause before costly repairs are undertaken.

 Contact Jan, CEO, Baxolog Home Builders and Jan Oberholzer Building Consultants - 073 2195445

40+ Years of Building Experience

For building inspections, defect reports and professional building advice, contact us today.

www.baxologbuilderspretoria.com

www.buildingconsultantpretoria.co.za

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