Mould on walls - install air vent?

[Fee]

I have a square room with a sky-light as a window. The room has a flat ceiling - i.e. the ceiling isn't sloped like in an attic - and the sky light is built into the roof via a 'chute'. The walls of the 'chute' lead into the attic.

There is mould growing on the walls of the chute - due to water condensing, I guess, as it hits the cold air of the sky-light. I was wondering if it would help to prevent this by drilling a few holes in the side of the chute (into the attic space) and fixing a vent over it to let the air escape?

There is an existing vent in the room but it is very small. If fixing a vent within the chute is a solution, would it matter on which side this is done? e.g. facing the existing vent, facing away from the existing vent, etc.

Many thanks!

 

[Newboy]

Drilling holes in the side of the 'chute' is likely to make the problem worse - you will probably only let cold air from the roofspace into the chute. The only real way to stop the condensation is to insulate the loft side of the chute and therefore increase the surface temperature inside the room.

You might be better posting this question in another forum (floors / stairs /lofts)

 

[Fee]

Thanks newboy!