"Oren" wrote in message
...
On Sun, 11 Sep 2011 13:57:22 -0700, "Steve B"
wrote:

This will be the underside of a metal roof ...................

I can't help with the prices.

Do consider the R value, thickness, inside/outside (under metal roof),
etc.

--
2 cents

I'm just hoping for three things: ANY R value, absorption of the suns heat
before it enters the enclosed space, and some water leakage protection from
the spraying mist of water I will use on the top of the roof to cool during
the hellish summers.

Steve