What is different among the All-terrain, Rough Terrain and Truck Cranes?
since fiber glass insulation will finally get ragged, I would still use fiberglass but get some foam board to fasten over the fiberglass so it will last longerIt'll look better too.
it really depends on where you live, climate is a huge factor I would reccomend R30 for under a mobile home though.
fiberglass blankets sold at hardware stores, look for the highest rating possible it is usually: R14 or higher.-blurey
All wheel drive huge wheels for dirt and uneven terrain.