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44 BAY VIEW AVE - BPA-14-1436 SOLAR RECEIVED INSPECTIONAL- SERVICES 14 f� 3cr The Commonwealth of Massachusetts Board of Building Regulations and Standards CITY OF p ; Massachusetts State Building Code,780 CMR SALEM Revised A4ar 2011 Building Permit Application To Construct, Repair, Renovate Or Demolish a One-or Two-Family Dwelling This Section For Official Use Only Building Permit Number: Date A ied: /lira, Date Building Official(Prins Name) Signature Date SECTION 1:SITE INFORMATION 1.1 Property A r re'ess: n 1.2 Assessors Map&Parcel Numbers 4� `k j ���xAJ 00-"' 1.la Is this an accepted el?yes X no Map Number Parcel Number 1.3 Zoning Information: 1.4 Property Dimensions: Zoning District Proposed Use Lot Area(sq fl) Frontage(ft) 1.5 Building Setbacks(R) Front Yard Side Yards Rear Yard Required Provided Required Provided Required Provided 1.6 Water Supply:(M.G.L c.40,§54) 1.7 Flood Zone Information: 1.8 Sewage Disposal System: Public❑ Private❑ Zone: — Outside Flood Zone? Check if yesO Municipal❑ On site disposal system ❑ SECTION 2: PROPERTY OWNERSHIP' 2.1 Owner'ofRecgrd:HHIbert Goodhue Salew( MA. Narne(Print) City,Slate,ZIP 44 Bay View ave. 978-744-4070 Agoodhue3@gmail.com No.and Street Telephone Email Address SECTION 3:DESCRIPTION OF PROPOSED WORK'(check all that apply) New Construction j8( Existing Building❑ Owner-Occupied ❑ 1 Repairs(s) ❑ 1 Alteration(,) ❑ 1 Addition ❑ Demolition ❑ Accessory Bldg.❑ Number of Units_ Other ❑ Specify: Brief Description of Proposed Work': POLO V C l-k-allC- SOILCr Svs�emS aY10 Co SECTION 4:ESTIMATED CONSTRUCTION COSTS Item Estimated Costs: Labor and Materials Official Use Only 1.Building $ �� 1. Building Permit Fee:$ Indicate how fee is determined: 2.Electrical $ ❑Standard City/Town Application Fee ❑Total Project Cost'(Item 6)x multiplier x 3.Plumbing $ 2. Other Fees: $ 4.Mechanical (HVAC) $ List: 5.Mechanical (Fire Suppression) $ Total All Fees:$ ,l Check No._C 6.Total Project Cost: $ 5'I heck Amount: Cash Amount:_ lY' 0 Paid in Full 0 Outstanding Balance Due: SECTIONS: CONSTRUCTION SERVICES 5.11-Construction Supervisor License(CSL) ©�S 2-54 2S -KX.�e,S �V\2Yf Vtax) License Number Esp a[ion LY Name of CSL Holder .L kkain Sdr^[�C„L List CSI.'I ype(see below) U No.and Street 1 r' 1 Type Description S`0. �S A t OICI O L U Unrestricted(Buildin s u to 35,000 cu.ft. �"l R Restricted 1&2 Famil Dwelling City/Town,S r• 71P M Mascot —RC Roofing Coverin WS Window and Siding _ ',�/,,� SP Solid Fuel Burning Appliances IVIa.� g VjVIV �tJ 1 Insulation Tcle hone Email address r"1 D Demolition 5.2 Registered Home Improvement Contractor(HIC) \ ' l [gyp 1 1-10`st-V$ t 1 \/gnF3;�N O�0.r `„Na ` �"�"C-' HIC Registration Number E piston ate HIC Com any Name or t11C R gistrant Name �aaPN ��o �S . w.asola���t�t�+soffit N and Street� Email address C.Drvt OVO �IkIOOt} '18"13053o1p5 Cit /Town,State,ZIP Tele hone SECTION 6:WORKERS'COMPENSATION INSURANCE AFFIDAVIT(M.G.L.c.152.§ 25C(6)) Workers Compensation Insurance affidavit must be completed and submitted with this application. Failure to provide this affidavit will result in the denial of the Issuance of the building permit. Signed Affidavit Attached? Yes.........:A No...........❑ SECTION 7a:OWNER AUTHORIZATION TO BE COMPLETED WHEN OWNER'S AGENT OR CONTRACTOR APPLIES FOR BUILDING PERMIT 1,as Owner of the subject property,hereby authorize VI V 11t Solar to act on any behalf,in all matters relative to work authorized by this building permit application. 8/28/14 Pont Owner's Name(F_Iccu c Signature) Date SECTION 7b:OWNER'OR AUTHORIZED AGENT DECLARATION By entering my name below,I hereby attest under the pains and penalties of perjury that all of the information contained in III p It is true and accurate to the best of my knowledge and understanding. vivivIt Print Owx r 11rized'Agent's Name(Electronic Signature) Date NOTES: I. An Owner who obtains a building permit to do his/her own work,or an owner who hires an unregistered contractor (not registered in the Home Improvement Contractor(HIC)Program),will not have access to the arbitration program or guaranty fund under M.G.L.e. 142A.Other important information on the HIC Program can be found at www.mass.pov/oca Information on the Construction Supervisor License can be found at www.mass eov/dos 2. When substantial work is planned,provide the information below: Total Floor area(sq.ft.) (including garage,finished basement/attics,decks or porch) Gross living area(sq.ft.) Habitable room count Number of fireplaces Number of bedrooms Number of bathrooms Number of half/baths .'Type of heating system Number of decks/porches 'type of cooling system Enclosed Open 3. "Total Project Square Footage"may be substituted for"Total Project Cost" 1YOMM. solar 4931 North 300 West Structural Group Provo,UT 84604 P: (801)234-7050 Scott E. Wyssling, PE Head of structural Engineering scoff.wysslingCo vivintsolar.com August 27,2014 Mr. Dan Rock, Project Manager Vivint Solar 24 Normac Road Woburn MA 01801 Re: Structural Engineering Services Goodhue Residence 44 Bay View Avenue, Salem MA AR#3223703 11.5 kW System Dear Mr. Rock: Pursuant to your request, we have reviewed the following information regarding solar panel installation on the roof of the above referenced home: 1. Site Visit/Verification Form prepared by a Vivint Solar representative identifying specific site information including size and spacing of rafters for the existing roof structure. 2. Design drawings of the proposed system including a site plan, roof plan and connection details for the solar panels. This information was prepared by the Design Group and will be utilized for approval and construction of the proposed system. 3. Photovoltaic Rooftop Solar System Permit Submittal identifying design parameters for the solar system. 4. Photographs of the interior and exterior of the roof system identifying existing structural members and their conditions. 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: Description of Residence: The existing residence is typical wood framing construction with the roof system consisting of 2 x 6 dimensional lumber at 28"on center with an interior support wall providing additional support to the rafters. Collar ties were not present during the inspection. The attic space is unfinished and photos indicate that there was free access to visually inspect the size and condition of the roof rafters. All wood material utilized for the roof system is assumed to be Spruce-Pine-Fir #2 or better with standard construction components. Our review of the photos of the exterior roof does not indicate any signs of settlement or misalignment caused by overstressed underlying members. Stability Evaluation: A. Wind Uplift Loading 1. Refer to attached Ecolibrium Solar calculations sheet for ASCE/SEI 7-10 Minimum Design Loads for Buildings and other Structures, wind speed of 100 mph based on Exposure Category 'B" and 5 degree roof slopes on the dwelling areas. Ground snow load is 40 PSF for Exposure "B", Zone 2 per (ASCE/SEI 7-10). 2. Total area subject to wind uplift is calculated for the Interior, Edge and Corner Zones of the dwelling. vivint. solar ' Page 2 of 2 B: Loading Criteria 10 PSF= Dead Load roofing/framing 40 PSF=Live Load (around snow load) 5 PSF=Dead Load solar panels/mountina hardware Total Dead Load=15 PSF The above values are within acceptable limits of recognized industry standards for similar structures. Analysis performed of the existing roof structure utilizing the above loading criteria indicates that the existing rafters will support the additional panel loading without damage, if installed correctly. C. Roof Structure Capacity 1. The photographs provided of the attic space and roof rafters show that the framing is in good condition with no visible signs of damage caused by prior overstressing. D. Solar Panel Anchorage 1. The solar panels shall be mounted in accordance with the most recent "Ecolibrium Solar Installation Manual', which can be found on the Ecolibrium Solar website (ecolibriumsolar.com). If during solar panel installation, the roof framing members appear unstable, deteriorated, structurally compromised or deflect non-uniformly, our office should be notified before proceeding with the installation. 2. Maximum allowable pullout per lag screw is 235 Ibs/inch of penetration as identified in the National Design Standards (NDS) of timber construction specifications for Hem-Fir (North Lumber) assumed. Based on our evaluation,the pullout value, utilizing a penetration depth of 21/2", is less than what is allowable per connection and therefore is adequate. Based on the variable factors for the existing roof framing and installation tolerances, using a thread depth of 2 1/2'with a minimum size of 5/16"lag screw per attachment point for panel anchor mounts should be adequate with a sufficient factor of safety. 3. Considering the roof slopes, the size, spacing, condition of roof, the panel supports shall be placed at and attached to no greater than every other roof rafter as panels are installed perpendicular across rafters and no greater than the panel length when installed parallel to the rafters (portrait). No panel supports spacing shall be greater than two (2) rafter spaces or 56"o/c,whichever is less. 4. Panel supports connections shall be staggered to distribute load to adjacent rafters. Based on the above evaluation, it is the opinion of this office that with appropriate panel anchors being utilized the roof system will adequately support the additional loading imposed by the solar panels. This evaluation is based on information supplied to us at the time of this report and current industry standards and practices. Should you have any questions regarding the above or if you require further information do not hesitate to contact me. ery truly yours, �ZNOF9 Scott E.Wy Zing, P 50 civ MA License No. 9oFFSS/0NA P� vivint. solar JUNCTION BOX ATTACHED T V ARRAY USING ECO HARDWARE TO KEEP JUNCTION BOX OFF ROOF '!0'OF V PVC CONDUIT FROM JUNCTION BOX TO ELEC PANEL N (n___ — —__ �¢'mw - - —� doh z I I O (L)m dz PV SYSTEM SIZE: I I 0) p 11.5 kW DC I r' 'On I F-1 I C) V I � m I I E p I I ZM � a ^ > Z W E I I W W z m ❑ I J wz 3 w w z I I WNT SHEET NAME: F- J SHEET PV INTERCONNECTION POINT, NUMBER: LOCKABLE DISCONNECT SWITCH, (66)Tnna Solar TSM-250 PA05.18 MODULES WITH A - ANSIMETERLOCATION, En haseM215fi0-2LL-52X-ZCMICRO-INVERTER PV SYSTEM SITE PLAN 4 8 UTILITY METER LOCATION MOUNTED ON THE BACK OF EACH MODULE SCALE: 3/32"= V-0" d 00 y Cy m yN Z O a ip m on oc pp C� N. x C � I y N O 2 H N 0O Oy o0 m H N� 0 0.17 940 N Sn_ u0 C m, m D < p r C/) m � m --i m o � 0 0 r D Z Z_l >i1NSTALLERVIVINTSOLAR JJJn,���r Goodhue Rie esidence �mmi y INSTALLER NUMBER:1.877.404.4129 V a Vjn Y 4 Y PV ry o m ROOF mm MALICENSE MAHIC170846 v u. Salem,MAO 970 V L .. PLAN DRAWNBV:MSM JAR32231 UTILITY ACCOUNT NUMBER:5050526018 CLAMP MOUNTING SEALING C n 4PV . DETAIL WASHER N LOWER in^'ma SUPPORT N jow m (Dw z PV MODULES, TYP. MOUNT L OF COMP SHINGLE ROOF, FLASHING O < PARALLEL TO ROOF PLANE / 3„ O 5116"0 x 4 1/2" L PV ARRAY TYP. ELEVATION MINIMUM STEEL AG SCREWS NOT TO SCALE TORQUE= 13±2 ft-Ibs CLAMP ATTACHMENT (1) • NOT TO SCALE � o Ce CLAMP+ ATTACHMENT CANTELEVERLA OR LESS •r COUPLING J L=PERMITTED CAMP ECO SPACING SEE CODE COMPLIANT COMPATIBLE LETTER FOR MAX ALLOWABLE MODULE CLAMP SPACING. PERMITTED COUPLING < m < n CLAMP+ CLAMP CAMP vOi w ATTACHMENT SPACING `z m COUPLING PHOTOVOLTAIC MODULE z w .. wK m > � � z m z m m ¢ ¢ Z Z F O mt77 SHEET NAME: L=PORTRAIT H H7 U I.-:CAMP SPACING Z Q 7 O ECO O L= COMPATIBLE PV SYSTEM MOUNTING DETAIL SHEET ANDSCAPE MODULE NUMBER' CAMP SPACING MODULES IN PORTRAIT/LANDSCAPE NOT TO SCALE 1 c� NOT TO SCALE a Inverter Ratings(Guide Section 4) Inreeer Mam Model Enphion M21S562LL-52x-2L Conduit and Conductor Schedule MODULE DETAIL Max Dc vox Seeing 45 We To, Descrpdw wire Geoge am coodi Conduit Type I Conduit sl20 Max Poser®40eC 215 Wins 1 Enmews en,are mole-THWN3 12 AWG 4 cool NlA-Fresi /\ Nominal AC Voltage 240 VOID6AWG N -ros e Mr N. V Tons Solar TSM-250 Pi Max AC Current 09 Ampa 1 Bar.Copper Grwnd IEGCIGEq 1 A Free Air A` SOLAR MODULE Max 0CPD Rating 20 Amps 2 THri tO A. g Pvc 0'-r' W Max Number of PanelLCiwil O 2 THWN2-Ground aAWG 1 PVC V-1" ] THwi2 aAWG 3 PVc V-1 N ai NOTES FOR INVERTER CIRCUITS(Guide Section 8 and 9), a THAN.2-Grwnd eAAG 1 PVC 0.1" Qo'm LL IF UTILITY REQUIRES A VISIBLE-BREAK SWITCH,DOES THIS PV Module Ratings @ STC(Guide Section 5) LL y-E i Enphasa M215-60-2LL-32z-ZC SWITCH MEET THE REQUIREMENTS? MICRO-INVERTER AT YES NO %NA Model MakeMlodel Ttlna Solar TSM350 PA05,18 EI— EACHMODULE,ATTACHED Max Power-Point Current (imp) 82T Amps Nm vZ WITH ECO HARDWARE 2)IF GENERATION METER REQUIRED,DOES THIS METER Max Power-Paint Voltage(Vmp) 30.3 Volts a m O SOCKET MEET THE REQUIREMENTS? Open-Grcail Voltage(Voc) 37.6 Volts U YES NO XNA She ircuil Currant(isc) 885 Amps 3.)SIZE PHOTOVOLTAIC POWER SOURCE(DO)CONDUCTORS Max Saner Fuse(Oui 15 Amps 0 BASED ON MAX CURRENT ON NEC 690.53 SIGN OR OCPD Nominal Maximum Power at STC(Pmax) 250 Walls MICROINVERTER CONNECTION RATING AT DISCONNECT. Maximum System voltage teCopECL600(UL) O 7 TO ENGAGE TRUNK CABLE 4J SIZE INVERTER OUTPUT(AC)CONDUCTORS ACCORDING Voc Temperature CoeRcienl -0.32 Yd°C V V TO INVERTER OCPD AMPERE RATING(See Guide Section 9). 6.)TOTAL OF 3 INVERTER OCPDpd ONE FOR EACH NOTES FOR ARRAY CIRCUIT WRING(Guide Section 6 and 8 and Appendix DI, PV CIRCUIT.DOES TOTAL SUPPLY BREAKERS COMPLY WITH 120%BUSBAR EXCEPTION IN 1.)Lowest expected ambient temperature based on ASHRAE minimum mean examines #6 BARE CU GROUND NEC690.64(B)(2fbn7 XYES NO dry bulb temperature for ASHRAE location most similar to installation location: -19°C — — ___ (GROUNDING ARRAY) _ _ Signs(See Guide Section 7) 2.1 Highest condnuoue ambient temperature based on ASHRAE highest month 2%dry bulb temperature for ASHRAE location most similar to installation location: 39-C Sign for inverter DICED and AC Disconnect If 2005 ASHRAE fundamentals 2%design tempsestures do not exceed 47°C in the United States(Palm Springs,CA is 44.1°C).For less than 9 current-carrying conductors 4 Solar PV System AC Point of Connection in roaf-rnplmted sunlit conduit at least 0.5"above red and using the outdoor design ACOulpXCurrent 41.400000 Amps temperature W 47°O or less(all of United States). • Nominal AC Voltage 24UI Vo95 at 12 AWG,90°C conductors are generally acceptable for modules with lsc of 7,68 Amps PV CIRCUIT 1: 17 MODULES/PARALLEL or less when protected by a 12Amp or smaller fuse. THIS PANEL U FED BY AND LTIPLESOLAR SOURCES toI10AWG.90°C condudars are generally acceptable for modules with lsc of e6 Amps se (UTILITY AND SOLAR) arias when rolededb a16Ard or smaller fuse. •® m • • • O O a 1 NOTE:NEUTRAL CONDUCTOR(S)OMITTED FOR CLARITY E 1.0 ALL INVERTER OUTPUT CIRCUITS WILL HAVE A NEUTRAL CONDUCTOR •®g I ENVOY BOX PV CIRCUIT 2: 16 MODULES/PARALLEL m WP Q m a oc }{I 1fi • • • O O I N ¢ U Q 1 i MURRAY = m a COMBINER ? , N ✓` • • • --,r --�, E1.o i PANEL 125A/240V > W I on LWO04NR SIEMENS . . z In _ \p019 OR EQUIVALENT 60A240V SIEMENS a a U 3 \G�Gy 1 UNFUSED 60A/240V y 0 Q K I 'PO\t(. O NEMA3 FUSED NEMA3 ? ? E o O\tot! SREC/ANSI LNF222R OR GF222R OR EXISTING SHEET PV CIRCUIT 3: 13 MODULES/PARALLEL �O tx F METER EQUIVALENT EQUIVALENT ENTRANCE NAME: I Opp! O CONDUCTORS 1J • • • 2 1 \O°P 2oA Ir RATED:200A W < O O O 1 i \\ 0A ? W \ 1 A M SUPPLY-SIDE A Q Ja • • ,r. Ele 1 \ 60A SOLAR TAP O rrecmg,Aod SHEET ___ __ ___ _ _________k ------ _ __ _______ JVISIBLE/LOCKABJLE ______ NUMBER' \ 240V/200A JUNCT \ MILBANK i PANEL p WITHI IRREVON BOXERSIBLE \ 100A OR — WITH IRREVERSIBLE Z \ 3 EQUIVALENTISCONNEC 3 -NEC 2014 Compliant GROUND SPLICE DISCONNEC TOEXISTING E 1.0 \ E 1.0 U5934-XL-BLG E 1.0 LOAD-CENTER LLI