OK,
I moved into my house about a year ago. I insulated the half of the loft in January with the orange and silver kauff insulation from B and Q, the other half of the loft was alredyinsulated with rockwool (with no orange / silver covering) and put a box up there a week ago, a week later I got the box down and it was damp.
On closer inspection I can see a bit of condensation on the roof felt at the apex. Having read a few posts on condensation etc I have noted the following which is probably contributed to this.
I have no door on my bathroom, have fitted a new mira excel shower off the new combi boiler in there, the foft hatch is just outside the door. I have no extractor in the bathroom.
There are a few holes in the ceiling where there were pipes to the water tank which is now redundant.
In the bathroom I have spotlights which have a small gap around them where they can pivot.
I have no "vapour barrier" in the loft.
In the year I have had cavity wall insulation done which goes right up to the apex of the gable ends.
There are no air bricks in the loft, but there is a good flow of air through there (I can see the cobwebs quivering in the wind) I didnt insulate into the eaves.
Obviously I want to solve the problem. HOwever I am just after some opinions as what to tackle first, some soloutions are easy (bathroom door!) some are harder (bathroom extractor) and some I'm not convinced will be a major benefit (I dont know anyone who put down a vapour barrier under their insulation)
Also does the polythene around my new insulation not act as a vapour barrier already?
I'd appreciate any ideas on what I should tacklle first / how to approach this.
Thanks.