Material for walls?

Is there a good material to make fabric walls out of that insulate some what? I was looking at using panda film to contain part of a storage room and do some make shift rooms with in rooms with it that are smell proof. The plan is below, its a 30'x15' room. I want to make sure the material is sturdy enough to make Velcro attached doors so I don't have to put up a wooden frame anything, just wall to wall fabric hung up with hooks. Ill be pumping in fresh air and pulling it out into exhausting ventilation so temps should be fine. Tents are more of a measure to ensure some areas can keep vegging post transplant before flower.

How about fire rated Cork Tiles, they come in different thicknesses.

There’s no fabric that’s going to have reflectivity of light. White panda film is a good option. Flat white reflects more useful light than reflective surfaces such as Mylar or mirrors.

I would probably use 1/2" Rigid foam insulation panels (4x8' sheets) and metal tape..

Ill prolly do a combo of cork on the walls and cover all the rooms with white panda top to bottom to keep in the smell till its filtered. If anyone has other suggestions thatd be great but i dont see a point in going overboard with it beyond that