I've been looking at making a grow room in my garage but would rather stick a tent in there and still vent to outside. If I went for the tent option would I need to insulate the garage further? Has anyone done a similar set-up? Also is there a lot of difference between 210d and 600d mylar tents? I know the obvious answer but is a 210d tent still pretty good since they make them and would one be suitable for a garage?