An eight year warranty on a 'double coated ultravioted' protector isn't a lenghy warranty by any means. Typically a 10-year warranty is given for all other panels.

Probably overpriced I would assume and comparitively to similar twin wall greenhouse panels it appears to me.

I've found Farmtek to be a good source. You may wish to check out their pricing for 5mm, 6mm, etc-

Dax

P.s. Solexx Glazing's website looks to me like a marketing ploy in the respect that their panels are 4'1" for "overlap" as well to entice the buyer as well. Unfortunatley I'm not able to compare other company's prices because I simply haven't researched this topic.

Thanks Dax
It seems the more I look at this the more attractive twin layer inflated poly looks.
Karl