Why would you rather not use balsa sheeting?
You will need to put on several layers of glass (probably 2 or 3 layers of 4 ounce cloth) in order to make it durable enough to withstand any kind of hanger rash and strong enough to handle the flight loads. You will probably end up with a heavier wing if you use glass only sheeting.
IMHO balsa is still the best material for making strong lightweight wing sheeting, for example if you look closely at most of jet kits on the market with composite wings they are using a sandwich of glass/balsa/glass for most of the wing skins.