Which eco building products have you used and would recommend to others?

Where do you source quadruple glazing in this country? Does this enable you to reduce the thickness of the walls?

The buildings look superb.

http://www.buildsomethingbeautiful.com

'eco' building products - locally sourced materials with little or no impact to environment

earth building (thermal mass storage), local stone, local wood from Sustainable managed forests, earth/lime/hemp plaster, straw/reed/slate/car tire roofs, lamb's wool/hemp insulation, triple/quadruple insulated glass (conservatory's for solar heat gain)