Anything is better than the black tar paper I found glued to the inside of the roof on my 1946 Suburban. It was factory supplied.
I bought a 4ft by 50 ft roll of foil backed bubble wrap for $60.00 at the Charlotte auto fair.
So far I have lined the following vehicles with it:
1941 1 Ton Pick up.
1946 Chevy Suburban
1963 Ford Falcon Ranchero.
1978 Grand Banks Trawler windows to keep the sun out when at the dock all 19 windows.
This stuff is easy to double up if you want more insulation and don't forget, lighter color vehicles do not have as much heat gain as dark ones.
