I'm sure that one could staple the foil on the bottom of the roof supports & do the same thing, but instead of staples I think I would use nail caps, as staples might tend to pull through the foil in time.
-------------------- Carl
Hawkeye Observatory Observatory - "Hawkeye"
Scope - 18"f4.5 on a GEM
8" f4.9 Orion piggy backed
Drive - Sitech Technology
DSC - Sky Commander
Planetarium - MegaStar
Camera - ST2000XM
Desire - comes & goes
Talent - ZERO, NONE, NADA (But I can Wish)