Two winters with no loft insulation is quite enough and I have been costing the various options, which turn out to be
Wool batts Conductivity 0.038 W/mK £11.30 /sqm
Flax rolls Conductivity 0.037 W/mK £15.00 /sqm
Isowool rolls (glass fibre) Conductivity 0.04 W/mK £1.70 /sqm
Even if VAT needs to be added to the glass fibre option it still looks loads cheaper than either of the others so I can see why the eco-products haven't hit the mass market yet. I'd be prepared to pay a bit more for them, but an order of magnitude more sticks in my gullet
Anyhow whats eco-unfriendly about glass fibre. Its only sand, isn't it?
Anna
~~ Anna Kettle, Suffolk, England |""""| ~ Lime plaster repairs / ^^ \ // Freehand modelling in lime: overmantels, pargeting etc |____|