Inquiry (采购产品): sound absorbing convoluted acoustical foam need approx. 456 sq. feet coverage against concrete block walls, and approx. 156 sq. feet coverage on a ceiling. this is for a combination music room and radio commercial recording studio. In addition to sound absorbtion ratings are concerns about flame retardant properties and shipping costs. I am in Ohio for the next few days and can be contacted at Ohio: 330-535-0575 or cell: 787-242-8201. Thank you! **** Hidden Message ***** Jacob Fatkins Van Gogh St #C-6 Quintas de San Luis Caguas, PR 00725 PRI Company: CP Consulting Services Phone: 330-535-0575 E-mail: jmfatkins@hotmail.com **** Hidden Message ***** jmfatkins@hotmail.com