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Signed-Impact Fire Narrative D'Amour Residence8/24/2022 Page 1 of 4 533 CENTER STREET P.O. BOX 582 LUDLOW, MA 01056 Tel. (413) 589-0672 August 24, 2022 Fire Prevention Officer Northampton Fire Department 26 Carlon Drive Northampton, MA 01060 Subject: D’Amour Residence 272 Old Wilson Road Northampton, MA 01060 This letter will serve as confirmation that we have taken into consideration 780 CMR: Massachusetts Amendments to the International Building Code (IBC) 2015, Chapter 9 “Fire Protection Systems” with regard to the design of the automatic fire protection system and compliance with applicable codes at the above referenced location. Re: 780 CMR 901.2.1 Tier One, Construction Documents (i) Basis (Methodology) of Design Section 1 – Building Description a. Building “Use” Group – R (Residential) b. Total Square Footage – Total Building: 2328 sq.ft. c. Square Footage per floor – Main Level: 1152 sq.ft. Upper Level: 593 sq. ft. Lower Level: 583 sq. ft. d. Location: Residential e. Number of floors above grade – 2 f. Number of floors below grade – 1 g. Type of occupancies within the building – Dwelling Unit h. Type(s) of construction – IB i. Liquids and Hazardous material usage and storage – N/A a. Type of hazards: Residential j. Type of systems: Wet Section 2 – Applicable Laws, Regulations and Standards: Impact Fire scope of project includes installation of residential pendent sprinklers into the new residence. The sprinklers will be supplied from a new 1” water service. The new sprinkler protection will be installed and operational in accordance with all applicable State, Local and National Codes, as follows: a. International Building Code (IBC) 2015 b. International Existing Building Code (IEBC) 2015 c. International Fire Code (IFC) 2015 8/24/2022 Page 2 of 4 d. International Residential Code (IRC) 2015 e. 780 CMR, Massachusetts Amendments to the International Building Code (IBC) 2015 f. 527 CMR, Fire Prevention Regulations g. 527 CMR 1.00 Massachusetts Comprehensive Fire Safety Code h. M.G.L. Chapter 146, Section 81 through 89 and CMR 528, Section 11 and 12, (Sprinkler Contractor and Fitters Licensing Laws and Regulations) i. M.G.L. Chapter 148, Section 10 (Regulations relative to fire prevention) j. M.G.L. Chapter 148, Section 28 (Regulations to prevent fire hazards and fires) k. NFPA-13, 2013 Edition, “Standard for the Installation of Sprinkler Systems” l. NFPA-25, 2014 Edition, “Standard for the Inspection Testing and Maintenance of Water Based Fire Protection Systems” m. NFPA-70, 2020 Edition (NEC) n. NFPA-72, 2013 Edition, “National Fire Alarm Code” Section 3 – Design Responsibility for Fire Protection Systems Design-build. The installing contractor completely designs and specifies (develops a full system layout, design criteria and calculations) under supervision of a professional engineer (PE) and installs the system. The PE is considered the engineer of record and certifies the system for code compliance at completion. Section 4 – Features used in design methodology a. Building occupant notification and evacuation procedures - Approved Audio/visual alarm devices connected to the sprinkler system, activated by water flow located on the interior of the building and throughout the building in accordance with the requirements of 780 CMR 907. (By Others) b. Emergency response personnel, site and system features – Fire protection water is from an incoming 1” water supply located on the lower level. Sizing will be determined after hydraulic calculations have been performed. c. Safeguards, fire prevention and emergency procedures during construction – n/a d. Method for future testing and maintenance of systems and documentation – Per the requirements of NFPA-25. Section 5 – Special Consideration and Description Design per NFPA 13D (ii) Sequence of Operation Section 1 a. Fire protection water will be supplied from the incoming service on the lower level. “Wet System” - Thermally sensitive automatic sprinklers connected to a fixed fire protection piping system filled with pressurized water from the incoming service used in detecting a fire. When a fire occurs, the heat produced will fuse and operate sprinklers over the affected area distributing water to control or extinguish the fire. As water flows through the system, a paddle type water flow alarm device is activated which in turn initiates the Fire Protective Signaling system. b. The operating sequence for the fire alarm system is as follows: (By Others) c. All control, drain and test connections shall be provided with signage indicating their purpose. (iii) Testing Criteria Section 1 a. The Fire Sprinkler installing Contractor will be in charge of setting up and coordinating all testing. b. The Fire Sprinkler installing Contractor will utilize telephone and e-mail to coordinate all contractors, equipment distributors and code officials required to perform and witness all testing, testing dates and times, fortification to public utilities personnel required to perform all required testing as a system or individual system component testing. c. All piping shall be hydrostatically tested per the requirements of NFPA-13 utilizing a hydrostatic test pump as required. 8/24/2022 Page 3 of 4 d. All control valves shall be fully closed and opened under system water pressure to ensure proper operation. e. Supervisory tamper switches shall be tested for proper operation by closing the control valve and verifying signal at fire alarm control panel. f. A main drain test shall be performed per the requirements of NFPA-13 by observing and recording the supply pressure gauge reading and then opening the main drain fully and again observing and recording the supply pressure gauge reading. g. The water flow detection device and associated alarm circuits shall be flow tested by opening the inspectors test connection and shall result in an audible alarm on the premises and activation of the Fire Protective Signaling System within 60 seconds. Section 2- Equipment and Tools a. Fire Sprinkler Installing Contractors will utilize the following to verify system performance: 1. Manufacturer’s instructions and recommendations 2. Specifier’s special instructions 3. Approved narrative report, sequence of operation section 4. Approved fire sprinkler drawings 5. Communications radios 6. Notification announcements Section 3 – Approval Requirements a. A written approval by the Fire Department stating that the system satisfies all operational code compliance requirements may be required. b. When a portion of the system fails to operate satisfactorily, that portion shall be corrected and pre- tested prior to rescheduling the final acceptance test. c. Properly executed Material, Test, Performance and Completion Certificates will be provided to the Fire Chief or his designee by the Fire Alarm and Sprinkler Contractor at the completion of final acceptance. d. Confirmation by the Building Owner shall be provided to the Fire Department that as-built drawings sealed as reviewed by the Engineer of Record have been received prior to witness of acceptance testing. e. At the completion of installation, the Engineer of Record (PE) shall provide a final written affidavit that the specific fire protection system(s) for which he has design responsibility has been reviewed for proper functional operation and applicable code installation conformance. (1b) Building and site access for firefighting and/or rescue vehicle(s) and personnel –Front of residence. (1c) Fire hydrant(s) location and water supply information – Fire protection water is supplied from the public water supply to new 1” incoming water service. (1d) Type/description and design layout of the automatic sprinkler system – The sprinkler protection will be fed from a new residential wet system sprinkler riser. (1e) Automatic sprinkler system and control equipment location – Automatic sprinkler controls are new and located at the new residential sprinkler riser. (1f) Type/description of automatic standpipe system – N/A (1g) Standpipe system hose valve(s) type and location – N/A (1h) Fire department connection type(s) and location - N/A (1i) Type/description and design layout of the fire protective signaling system – By Others (1j) Fire protective signaling system(s) control equipment and remote annunciator location – By Others (1k) Type/description and design layout of the smoke control or exhaust system(s) – N/A 8/24/2022 Page 4 of 4 (1l) Smoke control or exhaust system(s) control equipment location – N/A (1m) Building life safety system features (auxiliary functions) required to be integrated as part of the fire protective signaling system – N/A (1n) Type/description and design layout of the fire extinguishing systems – N/A (1o) Fire extinguishing system(s) control equipment room location – N/A (1p) Fire protection system(s) equipment room location – N/A (1q) Fire protection system(s) equipment identification and operation signs – The sprinkler system shall incorporate all signage as required by NFPA-13 and 780 CMR. (1r) Fire protection system(s) alarm / supervisory signal transmission method and location – By others (1s) Fire command center location – By others (1t) Type/description and location of any emergency alarm system – N/A (1u) Type/description and location of any alternative fire suppression system - N/A (1v) Type/description of any carbon monoxide protection – By others Sincerely, Impact Fire Joe Brosseau, General Manager Scott Henderson P.E.