[quote="MedullaB"]Give these guys a call:
See what there price on IKOTherm is - these are roofing boards of the same material, but I believe are embossed with a fabric instead of foil... should do the job fine though and not blind you when you set them up or walk by them! ;)
If I remember correctly last year they were under $20 a sheet.
This is what we used last year for building hexayurts.
Note: This fabric makes you ITCHY! You will need to paint these or something. We covered the outside of ours with Aluminum radiant barrier, as we also used them during the summer up here in Canada, and you [b]cannot[/b] get these panels wet.
As for the new IKO Enerfoil (seems to be a new product?)
You can get them at Roofmart for ~$23.
I'm in the process of finishing up an additional document on building hexayurts in canada.
PM me, and I'll send it to you when we're done.