thanks DutchmenSport, I plan on putting a pergola covered in vines and all over it to help block some of the sun and UV. ( i have used drylock to water proof plywood aquariums. works great. lol becomes like concrete. but thats another subject) basically I just need to make it cheap as possible and last as long as possible eventually it will either become part of a pollbarn structure or will become a larger structure.
NMDriver, from what i can see it isn't chip board but 1/4 inch ply sheathing) thats what is on both ends for the roof. who ever tried to repair it once before used MDF for a small section. that rotted out. thats why i need to replace lol but it isn't a lot of work, just time consuming is all. and Thanks for the tip on the insulation.