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

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 170 The windows across the district overall are in functioning condition. Several facilities are older and have windows that are considered beyond their life span. In most cases, sealant around windows requires replacement. The roofing conditions across the district facilities vary with different types of roofing such as, but not limited to, synthetic roof tiles, standing seam metal, asphalt composite shingles, modified bituminous roof membranes, EPDM roof membranes, and TPO roof membranes. Since most facilities contain building additions from different times, most facilities have portions of roofs that are older while others are newer. While generally most roofs are in good condition some need immediate repairs. Routine roof maintenance repairs and regularly scheduled replacement are crucial to prevent water infiltration and damage to the interiors of the facilities. Other exterior envelope items of note were gutters, downspouts, sealant joints, paint condition of soffits, and fascias. Sealants are typically the first exterior building envelope element to fail and require regularly scheduled replacement at all facilities. A fresh coat of paint is also recommended at selective areas identified in these envelope assessments. Most gutters and downspouts are in functioning and good condition with few notable exceptions where replacement is recommended. A handful of facilities include exposed cast-in-place concrete structural elements on the facades of the buildings. It is recommended that these components be observed by a structural professional to identify if the minor rust marks or cracks present any functional issues. While no major issues were observed as a part of the assessments, enough small signs are present to warrant further investigation.