Re-roof with Class A or B roof covering material weighing less than 6 pounds per sq. ft. overexisting solid sheathing (40) Squares. Class A roof covering is required within Very HighFireHazard Severity Zone (VHFHSZ). For residential roof replacement > 50% of the total roof area,apply Cool Roof Product labeled and certified by Cool Roof Rating Council (CRRC). Cool Roofmay be required for non-residential buildings per Title 24, Part 6, Section141.0(b)2B.