Single Ply
For homeowners click here http://roofing.owenscorning.com/homeowner/index.aspx
These links will show different types of roofs to pick from http://www.genflex.com/ourproducts.aspx
http://www.dow.com/products/product_lister.page?industry=1000306&application=1120816
http://www.firestonebpco.com/roofing/
http://www.duro-last.com/generalContent/flat-roofs.asp
http://www.mulehide.com/mh_content/bofm.aspx
Put your zip code here and find availability in your area