loft condensastion?

May be of use

http://www.projects.toolvolt.co.uk/listing.php?id=001

But make sure the vents are clear in the soffit and that thay do go right throu into loft and not there just for decoration.

If you have small round vents in your soffit that are right throu, then increase the amount, manufactures recommend every 200mm all the way round. Which equates to a 20mm slot vent all the way round.

If you have a high pitch roof, fit 2 tiles two thirds the way up on all sides of the roof.

www.toolvolt.co.uk
February 2010

Darren
Leave fibre board in place , this is an insulation board and some roofs have no boarding at all.
Does your loft have adequate ventilation from perhaps air bricks on gable walls or strip or holed ventilation at soffit level.
Also try not to store a lot of items in roof space as this also cuts down ventilation movement.
Where and what exactly are you seeing for condensation taking place

ron D
January 2010