Moisture rising up a wall or “rising damp”, sometimes also known as "salt damp", often occurs at the base of a wall. This is due to the capillary action of the brickwork ‘wicking’ up moisture from around the base of the wall.

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Penetrating damp is where moisture penetrates though a wall from the outside. Rising and penetrating damp can be caused my many reasons including leaking pipes, poor ventilation or inadequate drainage. However, most causes of excessive damp in a building are due to design or modifications to the building and surrounding grounds.

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Signs of rising and penetrating damp are;

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• Damp patches that start at the base of a wall

• Skirting boards or plaster that is damp or rotting

• Tiles, carpet or floor coverings are damp, wet, lifting or mouldy

• Peeling paint and wallpaper

• Damp musty smell

• Walls, floors and ceilings that feel cold or damp

• Mould or mildew on walls, floors and ceiling

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Solutions for rising damp include;

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• Allowing adequate air-flow to remove the moisture laden air from the room

• Removing dirt and leaf matter from around the base of the house

• Clearing blocked building vents

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More technical solutions can include injecting application-specific materials into the area, curtain injection of the outside of wall from inside, building modifications, sub-floor ventilation, and negative-side waterproofing.

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We have extensive experience in providing common sense solutions for rising damp and penetrating damp mitigation, and waterproofing solutions for all applications.

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OTHER TOPICS:

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• Different Types Of Waterproofing Membrane?
   

• What is Concrete Cancer / Spalling?

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• Building Cracks and Movement