I have a 6x10 Pace that i am getting ready to start fixing up the inside and a friend said to make shure i insulate the inside well , All the pitchers i have seen haven't had insulation in them so is this a issue or not?

What kind of a plane is a 6 X 10 pace? Also, I don't think pitchers need insulation.

Red,
Are you going to store your planes in the trailer or just using it for hauling?
You have some pretty extreme weather where you are.
It will slow down the high heat build up in the Summer.
However, I lived in th Imperial Valley and left my planes in the garage and the heat didn't seem to hurt them.
You may get some wrinkling but that is probably all.
Good Luck,
KW_Counter

personally, I like insulated beer pitchers.
Walt

Never stays in the mug long enough to require insulation.