LIMITED WARRANTY ON GAF LIQUID-APPLIED ROOF COATINGS (continued from previous page) 5-Year Rate Gal/Sq1 (DFT2, mils) 7-Year Rate Gal/Sq1 (DFT2, mils) 10-Year Rate Gal/Sq1 (DFT2, mils) 12-Year Rate Gal/Sq1 (DFT2, mils) 15-Year Rate Gal/Sq1 (DFT2, mils) 20-Year Rate Gal/Sq1 (DFT2, mils) United Coatings™ Roof Mate™ MB Plus Coating 2 (17) 2.5 (21) 3 (26) 3.5 (30) 4 (34) – United Coatings™ Roof Mate™ QS Coating 2 (17) 2.5 (21) 3 (25) 3.