I have a customer that is looking to win a job that requires use of a bubble wrap underlayment similar to what you have been discussing in other answers to other inquireys. I see from you answers that you are definitely recommending its use. Can you provide a name of a manufacturer or wholesaler that I can contact to obtain pricing for this product? -Carleton

Some of the primary synthetics are Titanium, SharkSkin, RoofTopGuard, and Tri_Flex 30.
OR you might click on;Roofing Underlayment ? DuPont (http://www2.dupont.com/Tyvek_Weatherization/en_US/products/residential/resi_roofliner.html?src=roofing_underlayment_g_Phr ase|mkwid_slJ1VqkbK_5717223514_432be53864)
Good luck, Tom