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Home My WebLink AboutBLDE-20-000701 1 Official Use Only y Commonwealth of Permit No. BL - 00701 € Massachusetts BOARD OF FIRE PREVENTION REGULATIONS Occupancy and Fee Checked [Rev.1/07] APPLICATION FOR PERMIT TO PERFORM ELECTRICAL WORK All work to be performed in accordance with the Massachusetts Elec.: al Code (MEC),527 CMR l;.0Q E 4 t V E D (PLEASE PRINT IN INK OR TYPE ALL INFORMATION) Dat` ":1%''''..i: , City or Town of: YARMOUTH To the Inspector o 'res: 8 By this application the undersigned gives notice of his or her intention to perform the electrical work described below. AUG - 2019 Location(Street&Number) 17 WILDWOOD PATH Owner or Tenant DINATALE MARY A Telephone No. BUILDING DEPT Owner's Address ROUSSELL P M&SPRY A D, 340 POND ST,WEYMOUTH, MA 02190-1330 py— Is this permit in conjunction with a building permit? Yes 0 No 0 (Check Appropriate Box) Purpose of Building Utility Authorization No. Existing Service 100 Amps 120/24( Volts Overhead 0 Undgrd 0 No.of Meters New Service Amps Volts Overhead 0 Undgrd 0 No.of Meters Number of Feeders and Ampacity Location and Nature of Proposed Electrical Work: Installation of roof mounted photovoltaic solar systems,29 panels Completion of the following table may be waived by the Inspector of Wires. No.of Recessed Luminaires No.of Ceil:Susp.(Paddle)Fans No.of Total Transformers KVA No.of Luminaire Outlets No.of Hot Tubs Generators KVA No.of Luminaires Swimming Pool Above ❑ In- ❑ No.of Emergency Lighting grnd. grnd. Battery Units No.of Receptacle Outlets No.of Oil Burners FIRE ALARMS No.of Zones No.of Switches No.of Gas Burners No.of Detection and Initiating Devices No.of Ranges No.of Air Cond. Total No.of Alerting Devices Tons No.of Waste Disposers Heat Pump Number Tons KW No.of Self-Contained Totals: Detection/Alerting Devices No.of Dishwashers Space/Area Heating KW Local ❑ Municipal 0 Other: Connection No.of Dryers Heating Appliances KW Security Systems:* No.of Devices or Equivalent No.of Water KW No.of No.of Data Wiring: Heaters Signs Ballasts No.of Devices or Equivalent No.Hydromassage Bathtubs No.of Motors Total HP Telecommunications Wiring: No.of Devices or Equivalent OTHER: Attach additional detail if desired,or as required by the Inspector of Wires. Estimated Value of Electrical Work: (When required by municipal policy.) Work to start: 08/09/2019 Inspection to be requested in accordance with MEC Rule 10,and upon completion. INSURANCE COVERAGE:Unless waived by the owner,no permit for the performance of electrical work may issue unless the licensee provides proof of liability insurance including"completed operation"coverage or its substantial equivalent.The undersigned certifies that such coverage is in force,and has exhibited proof of same to the permit issuing office. CHECK ONE:INSURANCE 0 BOND 0 OTHER 0 (Specify:) I certify,under the pains and penalties of perjury,that the information on this application is true and complete. FIRM NAME: LLOYD R SMITH Licensee: Lloyd R Smith Signature LIC.NO.: 15688 (If applicable,enter"exempt"in the license number line.) Bus.Tel.No.: Address:30 1ST ST, MELROSE MA 021764010 Alt.Tel.No.: *Per M.G.L.c. 147,s.57-61,security work requires Department of Public Safety"S"License: OWNER'S INSURANCE WAIVER:I am aware that the License does not have the liability insurance coverage normally required by law.But signature below,I hereby waive this requirement.I am the(check one) 0 owner 0 owner's agent. Owner/Agent Signature Telephone No. PERMIT FEE: $150.00 Ctekiv cc> tel /9 �# 1800 W Ashton Blvd. Lehi, UT 84043 Structural Group J. Matthew Walsh, PE Samuel Brown, PE-Civil Senior Structural Engineering Manager Structural Engineering james.walsh@vivintsolar.com sam.brownr?a vivintsolar.com July 03, 2019 I R E C E I V E_ k..1 r Re: Structural Engineering Services j a Yap Residence 1 AUG 2 1 1019 17 Wildwood Path,Yarmouth, MA �-_.. . ....,..� S-6151416; MA-03 3 3 ,LDhNG DEPAR7MENT To Whom It May Concern: We have reviewed the following information regarding solar panel installation on the roof of the above referenced home: 1. Site Visit by a representative from our office under my supervision identifying specific interior and exterior site information including the condition of the existing roof system and the size, spacing, and condition of existing structural framing members. Information gathered during the site visit includes photographs,sketches, and verification forms. 2. Design drawings of the proposed PV System layout, including details to mount the new solar panels to the existing roof. Based on the above information, we have evaluated the structural capacity of the existing roof system to support the additional loads imposed by the solar panels and have the following comments related to our review and evaluation: A. Description of Residence: The existing residence is typical wood framing construction with a maximum of two layers of composite shingle roofing. All wood material utilized for the roof system is assumed to be Spruce-Pine-Fir#2 or better with standard construction components and consists of the following: • Roof Sections (1 and 2): Dimensional lumber - 2x6 at 24" on center. Survey photos indicate that there was free access to verify the framing size and spacing. B. Loading Criteria 8.49 PSF= Dead Load (roofing/framing) 2.59 PSF= Dead Load (solar panels/mounting hardware) 11.08 PSF=Total Dead Load 20 PSF= Roof Live Load 30 PSF=Ground Snow Load (based on local requirements) Wind speed of 140 mph (based on Exposure Category B-the total area subject to wind uplift is calculated for the Interior, Edge, and Corner Zones of the dwelling.) C.Solar Panel Anchorage 1. Installation shall proceed in accordance with the applicable guidelines and recommendations indicated below. If, during solar panel installation, the roof framing members appear unstable or deflect non-uniformly, our office should be notified before proceeding with the installation. • EcoFasten Solar Installation Manual, which can be found on the EcoFasten Solar website (www.ecofastensolar.com). 2. The solar panels are 11/2' thick. At no time will the panels be mounted higher than 10" above the existing surface of the roof. Page 1 of 2 vi vint. wtii Page 2 of 2 3. The following mounting types shall be used. Please refer to the mounting details for the associated required penetration depth. Based on our evaluation, the pullout demand is less than the maximum allowable per connection and therefore is adequate. • EcoFasten Solar: (1) 5/16" lag screw. Pullout capacity based on National Design Specifications (NDS) of timber construction specifications for Spruce-Pine-Fir is 235 lbs/inch penetration. 4. Fasteners are installed to meet industry standards and this document satisfies requirements in 2015 IBC 2303.4.5 verifying that the fasteners will not adversely affect the roof framing. 5. The maximum allowed spacing was calculated for the Wind Speed shown in paragraph B above, using the wind load uplift procedures of ASCE 7-10 and is specified below. These spacing requirements apply to all mount types indicated above. The following values have been verified by in-house testing and the mounting hardware manufacturers'data, which are available upon request. Panel support connections should be staggered, where possible, to distribute load to adjacent members. Modules in Landscape Modules in Portrait Roof Zone Interior Edge Corner Interior Edge Corner Max Vertical Spacing (in) 40 40 40 66 66 66 Max Horizontal Spacing (in) 48 48 48 48 48 48 Max Uplift Load (lbs) 205 166 155 346 279 261 D.Summary Based on the above evaluation,with appropriate panel anchors being utilized the roof system designed on will adequately support the additional loading imposed by the solar panels, if installed correctly. This evaluation has been performed for the structural elements only and verifies that they are in conformance with the 2015 International Residential Code with Massachusetts Amendments, current industry standards and practice, and the information supplied to us at the time of this report. If there are any questions regarding the above, or if more information is required, please contact me. v(HofMgs Regards, $!.•ffe ,N i �tiJ. MATTA �'J. Matthew Walsh, PE �/! MA License No. 54057 ivILv y NO. 54057 4:9 s/oNAL w- 07/03/2019 vivant.