Roofs will be the theme of the autumn edition so I'd appreciate suggestions, ideas for research and offers of stories on this theme.

A few thoughts to kick off with.

* Practical upgrading of roofs on old buildings from an insulation viewpoint.

* Green roofs of course (could this subject get boring?) - no not if we were to carry practical experiences of how easy to achieve, problems, we probably know most of the advantages already.

* Renewables on roofs. lets talk about the practical aspects, costs and dare I say payback.

* sustainable roof coverings (what are they). Are they they best option or should we keep to the high tech solutions. Remembering that most green roofs use hightech solutions hidden below them.

I've missed loads of sub-subjects so please please jump in here.