Re-roof with Class A or B roof covering material weighing less than 6 pounds per sq. ft. over existing solidsheathing ___742___Squares. Class A roof covering is required within Very High Fire Hazard Severity Zone(VHFHSZ). For residential roof replacement > 50% of the total roof area, apply Cool Roof Product labeledand certified by Cool Roof Rating Council (CRRC). Cool Roof may be required for non-residential buildingsper Title 24, Part 6, Section 141.0(b)2B.Remove existing roof tiles, apply new underlayment and reset roof tiles (Cool roof compliance is notrequired).