Loading...
11 JACKSON ST - BPA B-13-303 a ~ ` '^ C V The Commonwealth of Massachusetts Board of Building Regulations and Standards CITY OF Massachusetts State Building Code, 780 CMR SALd Mar EM 20 ! i < Building Permit Application To Construct,Repair,Renovate Or D olish Revise ( One-or Two-Family Dwelling �j This Section For Official Use Only Building Permit Number: Date Applipd. ddd �. i�• �•r Building Official(Print Name) Signature Date SECTION 1:SITE INFORMATION 1.1 Property Address: 5 1.2 Assessors Map&Parcel Numbers v I �Lc 1GSO \ L l a Is this an accepted street?yes no Map Number Parcel Number 1.3 Zoning Information: 1.4 Property Dimensions: Zoning District Proposed Use Lot Area(sq ft) Frontage(ft) 1.5 Building Setbacks(ft) 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? Municipal❑ On site disposal system ❑ Check if yes❑ SECTION 2: PROPERTY OWNERSHIP' 2.1 Owner of Record: /� <o D i 2 2 w a Sad e w. , YT O 1�l D Name(Print) City,State,ZIP No.and Street Telephone Email Address SECTION 3:DESCRIPTION OF PROPOSED WORIO(check all that apply) New Construction❑ FExisting Building❑ Owner-Occupied ❑ Repairs(s) ❑ 1 Alteration(s) ❑ 1 Addition ❑ Demolition ❑ Accessory Bldg.❑ Number of Units I Other Specify: Brief Description of ProposedWorkz: IV1StQ �� hhr� O , fO()� MoUVl,lfd SECTION 4:ESTIMATED CONSTRUCTION COSTS Item Estimated Costs: Official Use Only Labor and Materials 1.Building $ 1 1 5 3(0 1. Building Permit Fee:$ Indicate how fee is determined: ❑Standard City/Town Application Fee 2.Electrical $ 1 C1 (D Lp D ❑Total Project Cost'(Item 6)x multiplier x 3.Plumbing $ 2. Other Fees: $ f 4.Mechanical (HVAC) $ List: 5.Mechanical (Fire $ Suppression) Total All Fees: $ Check No. Check Amount: Cash Amount: 6.Total Project Cost: $ �� ❑Paid in Full ❑Outstanding Balance Due: SECTION 5: CONSTRUCTION SERVICES 5.1 Construction Supervisor License(CSL) �s254 t{- JalrneS License Number Expiration Date Name of CSL Holder 4s l List CSL Type(see below) ) �t Ci..i yt s�r�e,-� No.and Street Type Description SO,,t_LC I,LS �"�A ©lCl l0 U Unrestricted(Buildings up to 35,000 cu.ft. e, R Restricted l&2 FamilyDwelling City/Town, •Z M Masonry RC Roofing Covering WS Window and Siding SF Solid Fuel Burning Appliances �3b53pt0S M0C.0 `/� VIVI�otCLr I Insulation Telephone Email address C.oM D Demolition 5.2'Registered Home Improvement Contractor(HIC) v V W�f Sc�IGL�P�o�(-`_ I'l d�6t{on I . n Date HIC Registration Number xpna'on Date HIC Company Name or H[C Registrant Name Acl3t N• 3I ww. rAascolar�y�v��A-zbIcr.cDm No.and Street Email address PrDyo uT 254tol)4 �13o5-3exnS City/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 ..........�( No...........❑ SECTION 7a:OWNER AUTHORIZATION TO BE COMPLETED WHEN OWNER'S AGENT OR CONTRACTOR APPLIES FOR BUILDING PERMIT to act n my behalf,in all matters relative to work authorized by this building permit application. ` Q• s�� Is, -zotz .or Owner's Name(Elictronic Signature) Date SECTION 7b:OWNEW OR AUTHORIZED AGENT DECLARATION By entering my name below,I hereby attest under the pains and penalties of perjury that all of the information contai d in this application is true and accurate to the best of my knowledge and understanding. S2�i IS�Zo [Z 'nt wner's or Authorized g is Name(Electronic Signature) Date NOTES: 1. 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.c. 142A.Other important information on the HIC Program can be found at www.mass.gov/oca Information on the Construction Supervisor License can be found at www.mass v/des/des 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" y Y 2781 Fries Mill Road,Williamstown,NJ 08094 Tel: 856.770.4473; rdcipolla@verizon.net Vivint Solar September 26, 2012 24 Normac Road Woburn MA, 01801 Attn: Mr. Brien Langill, Operations Manager Re: Structural Engineering Services for Roof Mounted Photovoltaic(Solar) Panel Installations at Guzman Residence, 11 Jackson Street, Salem,MA Dear Brien: We are glad to provide you with this structural assessment report of Vivint Solar's photovoltaic (solar) products installations to be completed at the above referenced dwelling. The following assessment criteria is based upon Vivint Solar's recent site visit to this dwelling including roof framing photographs and field notes. We have also reviewed Vivint's PV Solar Permit Submittal, calculations, installation layouts and notes", PV 1.0 "Site Plan", PV 2.0 "Roof Plan", and PV 3.0, "Mounting Details". All were supplied for information on the proposed solar panels installation on the dwelling's roof framing members. The following is our assessment summary. The dwelling is timber framed of older construction age with an "A" and"hip" framed roof, 5' — 10"high, built from nominal 2" x 8" dimensional lumber joists, at 18" o/c typical. Materials are assumed to be minimum Hem-Fir #2 grade, or better, with standard construction components. No collar ties are installed in the "A" roof/attic's full length, in panel installations areas. There are 2" x 4" vertical supports at 12"+/- o/c spacing for the 2" x 8" ridge beam, and at 54" o/c and wider for the roof joists at mid-span on each side of the ridge. All are posted down to framing below. The attic is not finished, and framing was accessible in most areas at inspection time, so a complete assessment and confirmation of framing spacing, sizes and condition was able to be performed. No architectural drawings were available at the time of this report preparation. Refer to plans and documents prepared by Vivint for dwelling dimensions, locations and sizes of solar panel units. The roof framing members were reviewed for the analysis and design of any proposed improvements to stiffen the roof framing members. A. CAPACITY OF EXISTING ROOF TO SUPPORT PROPOSED SOLAR PANELS: 1. Our assessment included using the proposed solar panels dead load that were given to us in the ZEP calculation sheets and the live and dead loads described below. Our review of the roof information shows that there are no visible undulations or unevenness, indicating that the roof framing members are not visibly overstressed or weakened by past heavy snow loads. 2. Given the dwelling's roof structure construction and condition, we have concluded that the existing roof joists' load carrying capacity should be able to sustain the additional dead and redistributed live loads from the new solar panels if installed Mr. Brien Langill September 26, 2012 Page 2 correctly. The dwelling's roof members will be able to also redistribute the snow live loads, and additional dead load from the solar panels to the adjacent framing members. These additional loads should not produce stresses beyond the allowable stress range for these roof framing members assumed as Hem-Fir#2 materials. Considering the low roof slopes, mid-supports,the size, spacing, condition of roof joists, and collar ties,the panel supports shall be placed at and attached to no greater than every second joist as panels are installed directly across joists. No panel support spacing shall be greater than two (2)roof joist spacings, or 36", whichever is less,to Le s Le ified in framing/support Layouts #1 and 42. Note -Layouts#1 and#2 submitted for review, currently shows every four joists and 72" o/c spacing, w�hi�ch both need to be revised. No other revisions are required. After revising,these layouts can then be used for permit submittals and given to installers for their use. All panels shall be installed as shown on the layout plans, with 36"o/c maximum support spacing, or two joist spacings,to be shown in revised Layouts#1 and#2 as stated above for the roof sections. Framing member spacing and condition must be properly verified by Vivint's installers,by non-destructive means, prior to any installations. This information is to be sent to this engineer for review and approval, prior to continuing installations, if different than stated herein. 3. This assessment meets current Massachusetts Building Code, 8 h Edition—Residential —Amendments to International Residential Code, (IRC), 2009 Edition, for one and two family dwellings. B. SOLAR PANEL ATTACHMENT TO ROOF STRUCTURE: I. The solar panels shall be mounted in accordance with the latest"ZEP Company's Code Compliant Installation Manual" found on the ZEP website and not included herein. No additional reinforcing requirements are required for these installations. However, if during solar panel installations, the roof framing members feel unstable, or show interior or exterior evidence of minor or excessive movement, then this engineer should be notified as soon as possible prior to proceeding with installations. 2. The dwelling's owners shall be made aware that long term build-up of heavy snow accumulations may produce deflections in the roof. If any deflection is noticed, then it is recommended that the solar panels be cleared of accumulated snow more than one (1) foot deep over a one week period or more. If no deflections are visible under any snow loading over any time period, then there is no need to clear the solar panels. 3. If at installation time,technicians are able to add more roof panels than originally designed, it is generally acceptable to add up to six(6)more panels, without revised plans and permit resubmittals. This is acceptable if the panels are installed to the same support spacing criteria called for above. Vivint shall notify this engineer if more than six(6)additional panels are being installed prior to installations As-built layout plans shall be submitted to same for more than six(6)additional panels. Mr. Brien Langill September 26, 2012 Page 3 C. WIND UPLIFT LOAD: 1. Refer to attached ZEP calculation sheet for ASCEISEI 740 Minimum Design Loads For Buildings and Other Structures, wind speed this location of 120 miles per hour based on Exposure Category `B"and 19 degree roof slopes on the dwelling areas. Ground snow load is 40 p.s.f for Exposure`B", Zone 1 (per ASCEISEI 7-10 above) of the roof's interior portion, and effective wind speed of 120 mph, uplift is shown. 2. Total area subject to wind uplift is calculated for the Interior,Edge and Comer Zones. A maximum and user selected support(foot) spacing is shown for each location zone. D. PANEL ANCHORAGES: 1. Maximum allowable pullout per lag screw=235 #/inch from National Design Standards (NDS) of timber construction specifications for Hem-Fir-North lumber (assumed). Therefore using 4 lag screws,the pullout value is less than 235 #/inch of screw thread and OK. Considering the condition, variable factors for the existing roof framing members, and installation tolerances, use a threaded depth of 2 '/2"with a minimum 5/16" lag screw per attachment points in roof joists "rafter"components for solar panel anchor mounts. This should give a sufficient factor of safety. E. LIVE DEAD AND SNOW LOADS: Live load=40 p.s.f. ground snow load; 10 p.s.f. attic storage (trusses only) Dead Load= 10 p.s.f.-roofing and framing; 5 p.s.f. -panels, mounting hardware Total Live Load=40 p.s.f.; Total Dead Load= 15 p.s.f. These values are within acceptable limits of recognized industry standards for similar structures. The roof members should be able to sustain the solar panel attachments without damage, if installed in a workmanship like manner according to the above criteria. We have based our structural capacity determination on applicable building codes, professional engineering inspection and design experience, opinion and judgments. This report covers this dwelling's assessment for only the areas for solar panel installations. Assessments were made according to generally recognized structural analysis standards and procedures. The normal structural engineering industry standard of care utilized for this type of work was used during this report preparation. The assessments and recommendations in this report were reviewed to ensure a proper level of quality and uniformity. This report adheres to accepted State and National practices for current building code standards and can be used for construction purposes. If you have any questions or require further information,pleas do not hesitate contact me. espectfull b e , Z Russe D. a, egist Structural Engineer, Owner RUSSELL D. m Mass. License No. EN-4747 CIPOLLA STRUCTURAL H N0.47478 RDC/rdc ALEN�� N L) PV SYSTEM SIZE: PV SYS E rn�Qw 0„E _ Z mz NZ 7 ca' O E U Q N 0 ' Tn..Solar TSM-PA05.18 24 W MODULES WTH A EnPhase M215-60-2LL-S22 MICRO-INVERTER MOUNTED ON THEBACK OF EACH MODULE rO L J JUNCTION BOX ATTACHED T ARRAY USING ZEP ZS-GAB TO KEEP JUNCTION BOX OFF ROOF M �© rn V V INTERCONNECTION POINT, LOCKABLE DISCONNECT SVNTCH, ANSI METE &UTILITY METERETER LOCATION TION a v 3 5; 0 J U ll Z W W N Z 0 w 25'OF X T PVC CONDUIT Q FROM JUNCTION BOX TO ELEC PANEL — Z Z 2 p SHEET NAME: wg Fna 11 Jackson St, Salem MA NSHEET UMBER '` PV SYSTEM SITE PLAN o SCALE: 3/32" = V-0" M M;U ° ° o zoo y�0 mSN 70 is O �J C 3 m Z 0 m O y V M < 3 m0 Z �A m On oC Cy m# N' QQpp N o 3( ❑ S0 J N ti Cn a m D < I O m m m (n m � � a M o � O O Z �_ >iINSTALLER VVINTSOLAR Guzman Residence ��/ 2,0 �~ ROOF my INSTALLER NUMBER: (0-13)044129 �y������ c.`f'� ,a' r 11 Jackson t V /� HI LICENSE:CT-32028(C-13) w a..� PLAN DRAWN BY:JR I AR 2796146 1 Last Modified 9/13/2012 UTILITY ACCOUNT NUMBER'50677-14000 U o C MOUNTING �y G w PV3.0 DETAIL 0 z 2 Of . EZ U16"0-I6x1"STAINLESS a✓Z LEVELING FOOT(ZS-LF STEEL M.B.;TORQUE=16xi 61.. —� (n Z //�� J COMP MOUNT(25 CMA) �y WASHER PACKAGED V WATERPROOFINGSEAIA T WITH COMP MOUNT E Q V MODULE,TYP.MOUNT AS NEEDED N y O RAFTERS OF COMP. HINGLE ROOF,PARALLEL j TH PLANE OF ROOF 44 PV ARRAY TYP. ELEVATION 6/16'°111,z'MINIMUM S STAINLESS STEEL LAG SCREW TORQUE=IUF2 F-IM. CIO NO SCALE rV� V l LEVELING FOOT ON COMP MOUNT PERMITTED LEVELING NO SCALE FOOT SPACING �O T ec O LEVELING FWT(251FB) J FRAM LAING BELOW SHOWN DASHED FOR CRITY H p ZEP COMPATIBLE a PV MODULE HYBRID INTERLOCK r m gm � 1 o = F,a W N z m CANTILEVER=L/3 1=PERMITTED SPACING F 0R LESS SEE CODE COMPLIANCE LETTER FOR ALLOWABLE SPACING > > U PHOTOVOLTAIC MODULE Z W W W m In J J Z W h h J Z Z 2 � SHEET INTERLOLH(ZS-LLB) HYBRID INTERLOCK NAME: LEVELING FOOT(25-LFBj ROOF FRAMING F LEVELING FOOT(ZS-LFB) Z J Q W \ Q RLDLK(ZG-LLB) `FBRMITT "NG FOOT SPACINGACING IPV SYSTEM MOUNT DETAIL SHEET NUMBER: SCALE:318"=V-0" IMODULES IN PORTRAIT/LANDSCAPE M NO SCALE n O Conduit and Conductor Schedule Tag Description Was Gauge Aof Cmademn ConMil Type Cm-dit Gixe W O I Enpa se engage cable Till-firdi 12 AWG I N/A-Free Nr N/A Free Air V p I Bare Copper Ground(EGC/GEC) 6AWG I N/A-Free Air N/A-Free Ah L' 2 THAN-2 10 AWG 3 PVC 0'-1' ^' n 2 THAN-2-Ground 8AWG 1 PVO 0-1. (D r0 3 THAN-2 8AWG 3 PVC 0'-1. Ca 3 IXVYN-L-Umund BpWG PVC e'-I- TonaSolar TSM-PA05.18 240W m¢w SOLAR MODULE NN� PV Module Ratings @ STC(Guide Section 5) L.L m d z - ENPHASE MICROINVERTER Model Maxe)Mmlel Tnnasolar TSM-PA96.1824OW Nz PV CIRCUIT#1: 16 MODULE S AT EACH MODULE Ma.00.,-comivoua9eri a04 vnns (0^ Enphase M215-60-2LL-S22 U Open-Grcuit Vol[age(Voc) 3L2 Votls U¢ eii Sir NOTES Current(Isc) 0.3] pmps ...an.Fme(OCPD) 15 Amps N H Nominal Maximum Powerat STC lPmax) 240 Areas = F 96 BARE CU GROUND maximum system Voltage m0a0Ec)/600a all r^ career aremperemre caamuent a32 Scat V a� NOTES FOR ARRAY CIRCUIT WRING(Guider Section B and 8 and Appendix Dl:F—L e ] I)Loerat expected ambient temperature based on ASHRAE minimum mean extreme i dry bulb temperature for ASHRAE location most similar to installation location: -19°C at}I! 2.)Highest continuous ambient temperature based on ASHRAE highest month 2%dry bulb �s temperature for ASHRAE location most similar to installation location: 39-C 3)2005 ASHRAE Iandamentals 2%design temperatures do not exceed 47-C in the y wy United States(Palm$pangs,CA is 44.1-C).For less than 9 Current-carrying conductors V in met mounted sunlit conduit at least 0 5-above mat and using the outdoor design temperature of 47°C or less(all of United States), MICRO END CAP INSTALLED TOEN ENGAGE CONNECTION AT END OF TRUNK CABLE a)12 Vaned ti protected conductors are generally or smaller a cceptablefuse for modules with me o1Z68 Amps _ • ry TO ENGAGE TRUNK CABLE or less when protected by a 12-Amp Or smaller fuze. E 1.0 bJ 10 AM,90-C conductors are generally acceptable for modules with Ise of 96 Amps � or less wtren protected by a 15-Amp or smaller fuse. JUNCTION BOX •e Inverter Ratings(Guide Section 4) Investor MakNModel EnpM1ase M21560-2LL-522 •® S Max OC VOI1 Raring x5l Volte asMax Power @Vol 215 Watts Nominal AC Voltage 240 V016 2 Max AC Curren 9 Amps Max OCPD Raring 20 Amps ge / POINT OF DELIVERY Max Number of Penels)Lircun 17 ryOOFTOP�OUSE AND INTERCONNECTION < v / µIOR OF NOTES FOR INVERTER CIRCUITS(Guide Section 8 antl 9), sic ^ / (GROUNOt,E 1.)IF UTILITY REO UI RES A VISIBLE-BREAK SWITCH,DOES THIS of m do SWITCH MEET THE REQUIREMENTS? g U 'Y VISIBLE/LOCKABLE M YES NO XNA O ¢ SREC/ANSI 'KNIFE'A/C EXISTING MAIN m m ¢ METER DISCONNECT DISCONNECT 2)IF GENERATION METER REQUIRED,DOES THIS METER Z m ot LOAD-SIDE RATED:100A SOCKET MENEOT THE REQUIREMENTS? 5 z U BREAKER e-.r-. EXISTING LOAD CENTER ¢ K id RATED:20A 3.)SIZE PHOTOVOLTAIC POWER SOURCE(OC)CONDUCTORS J J N m BUSBAR RATING:100A z M ON ii]OSd2(D)p) 1� BASED ON MAX CURRENT ON NEC 690.5351GN OR OCPD W —OFF �� RATING AT DISCONNECT. Go F U TO IN E INVERTER INVERTER OUTPUT E RATING(See Guide ACCORDING Z Z 2 O TO INVERTER OCPD AMPERE RATING(See Guitle Section 9), SHEET VisionMeteringO Slernen6® 5.)TOTAL OF_i INVERTER OCPDa.ONE FOR EACH NAME: V2S-2S 3 M#:LNF222R 3 PV CIRCUIT.DOES TOTAL SUPPLY BREAKERS COMPLY 60A/240V WITH 120%BUSBAR EXCEPTION IN E 1.0 E 1.0 NEC 690.64(B)(2R8)P X YES NO W Q UNFUSED — Z 0_' NEMA3 Signs(See Guide Section 7) 7j Q Sign far inverter OCPD and AC Disconnect, 0 SHEET Solar PV System AC Point of Connection NUMBER: PC OWpN Lunenl Be Amps S Nominal AC Voltage NO VaIR O THIS PANEL FED BY MULTIPLE SOURCES `I— (UTILITY AND SOLAR) w I y vivint. solar E.AC point of interconnection Existing load center bulbar rating 100 amps Existing load center main disconnect rating 100 amps NEC 2011 705.12(D)(2) - "The sum of the ampere ratings of overcurrent devices in circuits supplying power to a busbar or conductor shall not exceed 120 percent of the rating of the busbar or conductor" 120% of the busbar 120 amps -main disconnect rating 100 amps = Available ampacity for PV circuits: 20 amps NEC 2011 705.12(D)(7) - Unless the panel boards in reated not less than the sum of the ampere ratings of all over- current devices supplying it,a connection in a panelboard shall be positioned at the opposite (load) end from the input feeder location or main circuit location. . .A permanent warning label shall be applied to the distribution equipment with the following or equivalent wording WARNING INVERTER OUTPUT CONNECTION. DO NOT RELOCATE THIS OVERCURRENT PROTECTION DEVICE F. Gounding 1. System Grounding(GEC) Each inverter is connected with a#6 AWG bare copper gounding electrode conductor that is irreversibly spliced in the roof-mounted junction box to a#8 AWG stranded green insulated copper conductor,which is then connected to the ground busbar inside the main load center panel per NEC 2011 690.41 2. Equipment Grounding(EGC) All exposed non-current-carrying metal parts of module frames, equipment and conductor enclosures are gounded using a#10 AWG conductor.All modules are bonded through the UL1703 listed ZEP Solar PV mounting and grounding systems.This has been sized according to NEC 690.45 4 Mono Multi Solutions `Finaimount II • DUYEAR WARRANTY FOR MODULE byTimsolar AND RACKING SYSTEM FOR PITCHED ROOF 4.5 x FASTER TO INSTALL SIMPLIFIED GROUNDING UP TO 72 MODULES WITH ONE GROUNDING POINT SUITABLE FOR COMBINING PV MODULE EXPERTISE WITH A HIGHLY COMPOSITION SHINGLE INNOVATIVE MOUNTING SYSTEM SOLUTION. Trina Solar is introducing Trinamount—the fastest, easiest and least expensive way to mount PV modules onto residential and commercial TRAPEZOIDAL METAL rooftops. With a series of drop-in and quarter-turn connections on a specialized module frame,this mounting solution installs up to 5 times faster than conventional moi.nting systems.Trinamount connects directly to the module frame, eliminating the need for long rails. STANDING SEAM ROOF By drastically reducing the number of parts, cost of materials and installation time,Trinamount offers the optimal solution for residential and commercial installations. �oMagt� Trinasolar '` W The power behind the panel ^eenopn° I