164 HVAC IMPROVEMENTS COST ESTIMATIONS BY FACILITY WYDOWN MIDDLE SCHOOL WMS Replace existing equipment as prioritized in green on the building equipment schedule 2,500,000 $ to 3,000,000 $ Replace existing equipment as prioritized in yellow on the building equipment schedule 1,200,000 $ to 1,600,000 $ Replace existing equipment as prioritized in red on the building equipment schedule 4,000,000 $ to 4,500,000 $ Replace all existing system with a new energy efficient variable air volume system (VAV) System will include new condensing type boiler system, air handlers, chillers, electrical, piping, ductwork and BAS upgrade. 15,300,000 $ to 16,000,000 $ BUILDING SQUARE FOOTAGE: 279,549 CLAYTON HIGH SCHOOL CHS Replace existing equipment as prioritized in green on the building equipment schedule 2,300,000 $ to 2,800,000 $ Replace existing equipment as prioritized in red on the building equipment schedule 300,000 $ to 350,000 $ Replace all existing system with a new energy efficient variable air volume system (VAV) System will include new condensing type boiler system, air handlers, chillers, electrical, piping, ductwork and BAS upgrade. Existing boilers could be reused 7,800,000 $ to 8,200,000 $ BUILDING SQUARE FOOTAGE: 157,048 Replace existing equipment as prioritized in green on the building equipment schedule 160,000 $ to 190,000 $ Replace existing equipment as prioritized in yellow on the building equipment schedule 190,000 $ to 220,000 $ Replace existing equipment as prioritized in red on the building equipment schedule 2,900,000 $ to 2,000,000 $ Replace all existing system with a new energy efficient variable air volume system (VAV) System will include new condensing type boiler system, air handlers, chillers, electrical, piping, ductwork and BAS upgrade. Existing boilers could be reused 3,800,000 $ to 3,500,000 $ 165 Replace existing equipment as prioritized in yellow on the building equipment schedule 180,000 $ to 210,000 $ Replace existing equipment as prioritized in red on the building equipment schedule 2,400,000 $ to 2,200,000 $ Replace all existing system with a new energy efficient variable air volume system (VAV) System will include new condensing type boiler system, air handlers, chillers, electrical, piping, ductwork and BAS upgrade. Rooftop units could be used if building will accommodate 3,900,000 $ to 4,300,000 $ BUILDING SQUARE FOOTAGE: 60,415 BUILDING SQUARE FOOTAGE: 59,829 CAPTAIN ELEMENTARY SCHOOL CPT GLENRIDGE ELEMENTARY SCHOOL GLN

Existing boilers could be reused 3,800,000 $ to 3,500,000 $ 165 Replace existing equipment as prioritized in yellow on the building equipment schedule 180,000 $ to 210,000 $ Replace existing equipment as prioritized in red on the building equipment schedule 2,400,000 $ to 2,200,000 $ Replace all existing system with a new energy efficient variable air volume system (VAV) System will include new condensing type boiler system, air handlers, chillers, electrical, piping, ductwork and BAS upgrade. Rooftop units could be used if building will accommodate 3,900,000 $ to 4,300,000 $ BUILDING SQUARE FOOTAGE: 60,415 BUILDING SQUARE FOOTAGE: 59,829 CAPTAIN ELEMENTARY SCHOOL CPT GLENRIDGE ELEMENTARY SCHOOL GLN Replace existing equipment as prioritized in yellow on the building equipment schedule 400,000 $ to 500,000 $ Replace existing equipment as prioritized in red on the building equipment schedule 200,000 $ to 300,000 $ Replace all existing system with a new energy efficient variable air volume system (VAV) System will include new condensing type boiler system, rooftop units, electrical, piping, ductwork and BAS upgrade. 900,000 $ to 1,200,000 $ 166 Replace existing equipment as prioritized in green on the building equipment schedule 160,000 $ to 190,000 $ Replace existing equipment as prioritized in yellow on the building equipment schedule 90,000 $ to 110,000 $ Replace existing equipment as prioritized in red on the building equipment schedule 3,000,000 $ to 2,900,000 $ Replace all existing system with a new energy efficient variable air volume system (VAV) System will include new condensing type boiler system, air handlers, chillers, electrical, piping, ductwork and BAS upgrade. Existing boilers could be reused 3,900,000 $ to 4,400,000 $ BUILDING SQUARE FOOTAGE: 61,401 BUILDING SQUARE FOOTAGE: 14,000 MERAMEC ELEMENTARY SCHOOL MER ADMINISTRATIVE CENTER ADMIN

Replace existing equipment as prioritized in yellow on the building equipment schedule 400,000 $ to 500,000 $ Replace existing equipment as prioritized in red on the building equipment schedule 200,000 $ to 300,000 $ Replace all existing system with a new energy efficient variable air volume system (VAV) System will include new condensing type boiler system, rooftop units, electrical, piping, ductwork and BAS upgrade. 900,000 $ to 1,200,000 $ 166 Replace existing equipment as prioritized in green on the building equipment schedule 160,000 $ to 190,000 $ Replace existing equipment as prioritized in yellow on the building equipment schedule 90,000 $ to 110,000 $ Replace existing equipment as prioritized in red on the building equipment schedule 3,000,000 $ to 2,900,000 $ Replace all existing system with a new energy efficient variable air volume system (VAV) System will include new condensing type boiler system, air handlers, chillers, electrical, piping, ductwork and BAS upgrade. Existing boilers could be reused 3,900,000 $ to 4,400,000 $ BUILDING SQUARE FOOTAGE: 61,401 BUILDING SQUARE FOOTAGE: 14,000 MERAMEC ELEMENTARY SCHOOL MER ADMINISTRATIVE CENTER ADMIN Replace existing equipment as prioritized in yellow on the building equipment schedule 60,000 $ to 80,000 $ Replace existing equipment as prioritized in red on the building equipment schedule 800,000 $ to 1,200,000 $ Replace all existing system with a new energy efficient variable air volume system (VAV) System will include new condensing type boiler system, air handlers, chillers, electrical, piping, ductwork and BAS upgrade. Rooftop units could be used if building will accommodate 1,200,000 $ to 1,300,000 $ 167 Replace existing equipment as prioritized in yellow on the building equipment schedule 8,000 $ to 10,000 $ Replace existing equipment as prioritized in red on the building equipment schedule 200,000 $ to 300,000 $ Replace all existing system with a new energy efficient variable air volume system (VAV) System will include new condensing type boiler system, rooftop units, electrical, piping, ductwork and BAS upgrade. 600,000 $ to 700,000 $ BUILDING SQUARE FOOTAGE: 8,783 BUILDING SQUARE FOOTAGE: 19,854 FACILITY SERVICES BUILDING SERV THE FAMILY CENTER FC Replace existing equipment as prioritized in red on the building equipment schedule 200,000 $ to 300,000 $ BUILDING SQUARE FOOTAGE: 12,640 FIELD HOUSE FH

Replace existing equipment as prioritized in yellow on the building equipment schedule 60,000 $ to 80,000 $ Replace existing equipment as prioritized in red on the building equipment schedule 800,000 $ to 1,200,000 $ Replace all existing system with a new energy efficient variable air volume system (VAV) System will include new condensing type boiler system, air handlers, chillers, electrical, piping, ductwork and BAS upgrade. Rooftop units could be used if building will accommodate 1,200,000 $ to 1,300,000 $ 167 Replace existing equipment as prioritized in yellow on the building equipment schedule 8,000 $ to 10,000 $ Replace existing equipment as prioritized in red on the building equipment schedule 200,000 $ to 300,000 $ Replace all existing system with a new energy efficient variable air volume system (VAV) System will include new condensing type boiler system, rooftop units, electrical, piping, ductwork and BAS upgrade. 600,000 $ to 700,000 $ BUILDING SQUARE FOOTAGE: 8,783 BUILDING SQUARE FOOTAGE: 19,854 FACILITY SERVICES BUILDING SERV THE FAMILY CENTER FC Replace existing equipment as prioritized in red on the building equipment schedule 200,000 $ to 300,000 $ BUILDING SQUARE FOOTAGE: 12,640 FIELD HOUSE FH BUILDING ENVELOPE REPORTS BUILDING ENVELOPE REPORTS

BUILDING ENVELOPE REPORTS BUILDING ENVELOPE REPORTS 169 Exterior building envelope assessments were performed at the district’s educational facilities and included a comprehensive study. A visual inspection of each educational facility was conducted, and assessments include the knowledge of the existing conditions from the Clayton Facilities staff. Building exteriors were assessed for the general condition of the building envelopes. Items reviewed and documented include: Exterior walls • Condition of cladding materials including brick, cast-in-place concrete, stone, concrete stem and base walls, cementitious panels and other various cladding materials utilized • Through-wall penetrations and building sealants • Paint finish conditions Gutters and downspouts Soffits and fascias Windows, doors, and aluminum storefront systems Roofing conditions OVERALL OBSERVATIONS // Most of the District facilities are composed of masonry facades. Masonry is a very high-quality building material, and its life expectancy exceeds the age of most other portions of the buildings they are included in. Maintaining masonry includes regularly scheduled attention to wall penetrations and joints as well as regular maintenance and tuckpointing of mortar; without such maintenance, brick composition and structure is compromised which can lead to water drainage issues inside of the buildings. Overall, the masonry on the educational facilities is in good shape. Notable for all masonry is the need for cleaning and tuckpointing across almost every facility. Some steel masonry lintels that were observed were rusting and need replacement. A new application of masonry water repellent is recommended on all masonry facades to protect all facilities from future water infiltration. BUILDING ENVELOPE REPORTS GENERAL PROCESS