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

With the foil-side up it reflects the radiant heat. Perhaps I wasn't clear,
or you're not familiar with the product - the foil adheres to the Styrofoam.
I believe it's often used under vinyl siding.

"1D10T" wrote in message
...


1" Styrofoam, backed with aluminum foil, foil side up,
against the
sheathing. Cut it into strips, making a snug fit pressing
them between the
rafters. Available in 4 x 8 sheets. The white Styrofoam will
look good too.