Insulation for truck cab

[CatCaretaker]

What will insulate a truck cab against summer heat, anyone who has done something to help...? Are products like Dynamat that helpful, or better to  glue polyiso board with spray foam in the gaps, esp for roof and floor? Looks like it will be an extreme summer where I am. I would like to not get baked

 

[highdesertranger]

on my truck I used flexible closed cell foam. like Ensolite. however you must realize you can never insulate the heat out.

coupled with the insulation you must run an AC.

do not use that expanding foam in a can that you get from the hardware store. it will rot your sheet metal.

highdesertranger