Damp in conservatory

A question about : Damp in conservatory

I moved into my house last year and over the winter months the conservatory has had mould growth, and the corners of the skirting boards are damp.

The mould is on the blinds, walls and windowsill. I clean it off with a mould spray I bought but it grows back, slowly.

I initially thought it was condensation damp as the windows were wet, especially overnight so I bought a dehumidifier and I use that over night. That does tend to keep the windows dry.

However I am worried that maybe it is another type of damp because of the wetness of the skirting board? How can I tell what type of damp it is?

Best answers:

• There is a brick wall on one side separating my conservatory from my neighbours garden, then a dwarf wall at the other side.
• Mich,
  Everything you have described lends itself to a condensation problem.
  I suspect that the skirtings are MDF, you only need to sneeze near MDF and it looks damp!
  If they are 'proper' wood then the same basically applies.
  Think of how much condensation you've had on your windows, the timber skirtings will have absorbed a lot of moisture too.
  Obviously i'm assuming that there arn't any leaks to the frame or roof (water can sometime run down the inside of the corner posts of the windows).
  I assume the conservatory is poorly heated, do you keep the door open into the house? if so warm air from the house could be migrating in and cooling down in the conservatory which will exacerbate the problem
  How old is the conservatory?