What are the signs of Penetrating Damp?

• Damp staining on external ceiling and/or wall surfaces corresponding to defect in the external roof, wall and/or rainwater disposal fitments 
• Damp patches on internal walls and ceilings
• Visible damp or wet and crumbling plaster work 
• Black mould growth isolated to one area
• Dripping water and/or pooling water
• Rainwater penetration can be damaging to a property even if it does not penetrate all the way through a wall on a property.
• Poorly installed wall-ties or cavity wall insulation can provide a pathway for rain penetration to track through cavity walls
• Moss growth, excessive heat loss frost damage.

Note: Penetrating damp can occur in buildings of all ages.