Penetrating Damp or Condensation

[Matty0682]

Hi All

How to I tell the difference between Penetration Damp or whether it is Condensation damp.

A the top of my stairs, on the side wall (directly under chimney) there are damp spots on the wall. The is little ventilation here, and the cold spots are cold to touch.

Do you think these may be caused from water Penetrating due to chimney leak?

Or is Condensation? They are always in the same spots.

Thanks

 

[Cubist]

Tape a sheet of kitchen foil or cling film over an area you are concerned about. Leave it for 24 hours and if its wet on the outer surface then its condensation, if dry that side and wet beneath then its penetrating damp.

 

[Drayton]

Are those clothes drying or just momentarily propped there on their way somewhere else?