With an air gap and air circulation, that's practical. But,
the "idiot" poster proposed cutting the foam board into
strips and packing it up against the roof.

--
Christopher A. Young
Learn more about Jesus
www.lds.org
..


"HeyBub" wrote in message
m...
Stormin Mormon wrote:
Foil is useless as condunctive insulation. Touching the
hot
roof accomplishes nothing. The styrofoam could help.

Right. But it's 95% effective against radiant heat. You've
got to have an
air-gap and circulation to remove the heat, but it's a cheap
and effective
solution.