I'll bet Stuart is spot on there. Age of house and shallow roof pitch makes it an almost certain. My advice is have some plastic felt supports installed. On those shallow roofs they are much more efficient and will outlast the house.
http://www.screwfix.com/p/felt-support-tray-1-5m-pack-of-5/36622[/QUOTE]
Many thanks John, any advise on how these are fitted? Is it something I could do myself up a ladder?
Thanks again.
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