Thermo-Tec 13590 24" X 48" Adhesive Backed Heat Barrier

I plan on using this to shield my carbon fiber hood. Can I rely on the adhesive backing alone, or should I use an adhesive spray as well?

Can this be used on the doghouse of a ford e450 to cut down the extreme heat that burns your legs on the passenger side

Would this be safe to use on the ceiling of a reptile enclosure, as far as chemicals or harful fibers, or anthing like that?

How thick is this?