yeah ive already unblocked it,the paint is supposed to warm the walls here is a link.. Google "paint-direct.co.uk/en-GB/product/703/1639-0-97-0-55.aspx?gclid=CLD4wLPJoqwCFSIhtAodWHKQ1w" or do you think I should use ronseal anti mould paint instead? I want to fit a trickle vent but it sound...