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HomeMy WebLinkAboutRESPONSE - AGREEMENT MISC - ARCHITECTURAL TESTING BUILDING ENVELOPE FOR CITY HALL WEST AND 215 N. MASONArchitectural Testing April 3, 2009 Steve Strickland City of Fort Collins, Colorado 117 North Mason Street Fort Collins, Colorado 80524 RE: Investigation into Building Envelope Air Tightness/Energy Loss City of Fort Collins - City Hall City of Fort Collins - 215 N. Mason Street Dear Mr. Strickland: Architectural Testing, Inc. is pleased to submit this proposal to provide building envelope investigation services on two City of Fort Collins buildings; the City Hall Building, and 215 N. Mason Street building. Although this proposal has been divided for each building, the proposal is based upon work for the two projects occurring simultaneously. Architectural Testing, Inc. is an independent laboratory engaged in the consulting, investigation, testing, and inspection of the assemblies associated with the building envelope. Architectural Testing, Inc. has extensive experience regarding windows, doors, skylights, roofing, exterior claddings, coatings, sealants, below grade waterproofing, and other building envelope components. Architectural Testing, Inc. has a wide variety of equipment for consulting, testing, and inspections; some of this equipment is unique in the industry. Architectural Testing, Inc. understands the design, manufacturing, testing, and construction process of exterior fagade components and assemblies, and we will share our experience with you to help the project team reach practical solutions to the inevitable problems or conflicts specific to this project. Project Understanding. On March 171h and 18th, 2009, Kevin Knight and John Runkle from Architectural Testing visited the site and met with several representatives from the City of Fort Collins. Based on our site walks, we understand that both buildings have high energy costs and we believe that a significant source of energy loss is from conditioned air exfiltration and unconditioned air infiltration through the building envelope. During this site visit, we discussed an investigation into the energy loss through the building envelope in general terms, which included a recommendation for a thermographic survey on the exterior fagade. Gary Schroeder of the City of Fort Collins completed this survey on March 20, 2009 and we have reviewed this survey in preparation of this proposal. 130 Derry Court York, PA 17406-8405 phone: 717-764-7700 fax: 717-764-4129 www.archtest.com Page 2 of 5 April 3, 2009 Scope of Services: We propose the following scope of services to complete our investigation into the air tightness and respective energy loss through the building envelope: City Hall Building We intend to complete the following scope of work in 2-3 days of on -site testing and inspection. ■ Review of existing architectural plans and specifications and window shop drawings (if available). This will include a visual assessment of the plans for locations of thermal bridging and potential air exfiltration/infiltration passages. ■ Upon review of existing architectural details and specifications, it may be determined that openings through the interior or exterior walls may be required to access critical building components. If this is required, local labor will be contracted to make the openings and subsequent make -good upon completion of the investigation. Such work will only commence upon written confirmation from the Client. The cost of the contracted labor will be in addition to the total cost provided in this proposal. ■ Inspect and assess the exterior building envelope components/assemblies, including a cursory review of the structural integrity of the existing masonry veneer on the east elevation. We intend to use a borescope and mirrors to view concealed wall components. ■ Conduct air tightness testing at various locations throughout the building in general accordance with ASTM E 1186 "Standard Practices for Air Leakage Site Detection in Building Envelopes and Air Barrier Systems," method 4.2.2. To conduct the testing, a smoke tracer will be used in conjunction with the buildings internal pressurization in order to identify locations of air exfiltration from the interior of the building. • Conduct quantifiable air tightness testing on at least one window in accordance with ASTM E 783. • Inspect the interior of the building envelope in numerous locations to observe paths of air leakage and at locations where heat loss was observed during the completed thermal scans (see attached locations). We intend to use a borescope and mirrors to view concealed wall components. • Develop conceptual repair options for sealing of the interior and exterior building envelope components and assemblies for your review and selection. • Provide you with a written report with our findings including repair options for your consideration. 215 N. Mason Street • Review of existing architectural plans and specifications and window shop drawings (if available). This will include a visual assessment of the plans for locations of thermal bridging of masonry wall assemblies and potential air exfiltration/infiltration passages. Page 3 of 5 April 3, 2009 • Upon review of existing architectural details and specifications, it may be determined that openings through the interior or exterior walls may be required to access critical building components. If this is required, local labor will be contracted to make the openings and subsequent make -good upon completion of the investigation. Such work will only commence upon written confirmation from the Client. The cost of the contracted labor will be in addition to the total cost provided in this proposal. ■ Inspect and assess the exterior building envelope components/assemblies. We intend to use a borescope and mirrors to view concealed wall components. ■ Conduct air tightness testing at various locations throughout the building in general accordance with ASTM E 1186 "Standard Practices for Air Leakage Site Detection in Building Envelopes and Air Barrier Systems," method 4.2.2. To conduct the testing, a smoke tracer will be used in conjunction with the buildings internal pressurization in order to identify locations of air exfiltration from the interior of the building. ■ Conduct quantitative air tightness testing on at least one window in accordance with ASTM E 783. ■ Inspect the interior of the building envelope in numerous locations to observe paths of air leakage and at locations where heat loss was observed during the completed thermal scans (see attached locations). We intend to use a borescope and mirrors to view concealed wall components. ■ Develop conceptual repair options for sealing of the interior and exterior building envelope components and assemblies for your review and selection. ■ Provide you with a written report with our findings including repair options for your consideration. Schedule and Fees: The fees for the services outlined herein are as follows: • City Hall Building • 215 N. Mason Street $11,500 $11,500 ** These fees include all travel time, travel cost, equipment, reimbursable expenses and reporting time. Additional Services: The fees for any services above and beyond the scope of this proposal are based upon the following rates: • Director/Associate Director - $160-$200/hour • Senior Project Engineer/Project Manager - $130/hour • Senior Technician - $100/hour * * All travel time billed at M2 times rates listed above Page 4of5 April 3, 2009 Items Provided by Architectural Testing, Inc.: • All equipment necessary to perform the testing. • Project Manager/Project Engineer. • Test technician and assistant, gauges, and instrumentation for conducting the testing. • A detailed report summarizing the findings from the investigation. • Insurance (see attached).