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Committee approves Broadmeadow HVAC change order and vendor invoices for RTU work; roofing scope under discussion
Summary
The PPBC approved a $35,497.17 change order to CAM HVAC for Broadmeadow RTU work and accepted multiple invoices for commissioning and design services related to RTU replacement work at Elliot and Broadmeadow. Committee members discussed enlarging roof replacement scope after infrared findings.
The Permanent Public Building Committee approved a $35,497.17 change order to CAM HVAC for Broadmeadow work and voted to pay several invoices tied to rooftop-unit (RTU) replacement and commissioning at the Elliot and Broadmeadow schools.
Ken (project staff) reported that RTU No. 2 at Elliot experienced control and sequencing problems; staff identified damper sequencing as the cause, reprogrammed the unit and expected commissioning and training to finish within the week. At Broadmeadow, staff are awaiting revised roofing drawings and additional ductwork scope because meeting energy-code insulation requirements will increase curb heights and require mechanical adjustments.
The committee approved change order No. 1 for Broadmeadow from CAM HVAC in the amount of $35,497.17 (general contractor's budget). Members also approved two invoices to GGG Consulting Engineers for December 2024 services at Broadmeadow ($4,000) and Elliot ($7,050) totaling $11,050, and approved a commissioning invoice to NV5 for services through Jan. 11, 2025 in the amount of $2,319.66. All motions passed on roll-call votes.
Ken and other staff said an infrared scan of Broadmeadow’s roof showed roughly half of two of the three roof areas were substantially worn or wet; that finding led staff to recommend enlarging replacement scope for the roof areas that house RTUs while the units are offline. Committee members questioned escalation risk and contingency; staff said they expect to complete the essential work within contingencies and that some roofing curbs were already authorized so units would not have to be removed again later.
Why it matters: the committee approved vendor payments and a contractor change order that allow RTU repairs, commissioning and associated roofing work to proceed. Members discussed balancing current contingencies versus future costs if roof issues are deferred.
Staff said they would seek revised bids from prequalified roofing contractors once drawings are complete and will track contingency use closely given prior limited contingency use on other project elements.
