wickes have
Triple Wall Polycarbonate Sheet
£36.99

Size: 3m x 900 x 10mm

http://www.wickes.co.uk/Roofing-Shee...spolyroofsheet



which is a lot more expensive than

Polycarbonate Twin Wall Sheet Opal
£7.47

Size: 700 x 10mm x 3m



and both would need several bits joined together somehow...



whats the difference in heatloss between the two,

what else is there usable?



--

[george]