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35-010 (11)
51 WEST FARMS RD BP-2020-0685 GIS#: COMMONWEALTH OF MASSACHUSETTS Map:Block: 35-010 CITY OF NORTHAMPTON Lot:-001 PERSONS CONTRACTING WITH UNREGISTERED CONTRACTORS Permit: Building DO NOT HAVE ACCESS TO THE GUARANTY FUND (MGL c.142A) Cate o : SOLAR ELECTRIC SYSTEM BUILDING PERMIT Permit# BP-2020-0685 Project# JS-2020-001160 Est.Cost: $12870.00 Fee: $75.00 PERMISSION IS HEREBY GRANTED TO.- Const. O.Const.Class: Contractor: License: Use Group: SUNRUN INC 080034 Lot Size(sq. ft.): 24219.36 Owner: HERRELL STEPHEN Zoning: Applicant: SUNRUN INC AT. 51 WEST FARMS RD Applicant Address: Phone: Insurance: 734 FOREST ST STE 400 978 793-8584 WC MARLBOROMA01752 ISSUED ON.121312019 0:00:00 TO PERFORM THE FOLLOWING WORK.-ROOFTOP MOUNTED SOLAR 20 PANELS, 6.6KW POST THIS CARD SO IT IS VISIBLE FROM THE STREET Inspector of Plumbing Inspec or of Wiring D.P.W. Building Inspector Underground: Service: Meter: Footings: Rough: Rough House# Foundation: Driveway Final: Final: Final: Rough Frame: Gas: Fire Department Fireplace/Chimney: Rough: Oil: Insulation: Final: Smoke Final: i THIS PERMIT MAY BE REVOKED BY THE CITY OF NORTHAMPTON UPON VIOLATION OF ANY OF ITS RULES AND REGULATIONS. i Certificate of Occupancy signature: FeeTyne: Date Paid: Amount: Building 12/3/2019 0:00:00 $75.00 12 Main Street,Phone(413)587-1240,Fax:(413)587-1272 Louis Hasbrouck—Building.Commissioner s6�- /� Department use only City of Northampton Status of Permit Building Department Curb Cut/Driveway Permit 212 Main Street Sewer/Septic Availability Room 100 . Water/VVell Availability Northampton, MA 01060 Tluv4,5ts 7Structural Plans phone 413-587-1240 Fax 413-587-1272 Plot/Sltaas NO I/ . other Speci APPLICATION TO CONSTRUCT,ALTER,REPAIR, ENOVATE OR DE 62ISH ONE OR TWO FAMILY DWELLING DFR T pFSUIC l SECTION 1 -SITE INFORMATION NORTHgMr'TOp1NN IN,,, r,�tis 1 1.1 Property Address: This-sectiotl to be completed by office 51 W Farms Rd Map 35 Lot 010 Unit 001 Zone Overlay District Elm St.District CB District SECTION 2-PROPERTY OWNERSHIP/AUTHORIZED AGENT 2.1 Owner of Record: Stephen Herrell 51 W Farms Rd Northampton MA 01062 Name(Print) Current AAailipg Add��1 Telephone Z54E� Signature 2.2 Authorized Apent: Craig Orn 734 Forest ST STE 400 Marlborough MA 01752 Name(Print) Current Mailing Address: z�- 978-793-8584 Signature Telephone SECTION'3-ESTIMATED CONSTRUCTION COSTS Item Estimated Cost(Dollars)to be Official Use Only completed by permit applicant 1. Building 3861.00 (a) Building Permit Fee 2. Electrical 9009.00 (b)Estimated Total Cost of 3. Plumbing Construction from 6 Building Permit Fee 4. Mechanical(HVAC) 5. Fire Protection 6. Total=0 +2+3+4+5) 12870.00 Check Number "7 This Section For Official Use Only Building Permit Number: gP� Z� Date Issued: Signature: lu Building Commissioner/Inspector of Buildings Date SECTION 5-DESCRIPTION OF PROPOSED WORK(check all applicable) New House [] Addition ❑ Replacement Windows Alteration(s) ❑ Roofing El Doors [--] TAccessory Bldg. ❑ Demolition ❑ New Signs [O] Decks IQ Siding[O] 0th r Roo tO Olar FAttached ption of Proposed allation of an Interconnected rooftop PV system 20 (330w) panels 6.6 KW DC existing bedroom Yes No Adding new bedroom Yes No rrative Renovating unfinished basement Yes No Plans Attached Roll -Sheet 6a. If New house and or addition to existina housing complete the following a. Use of building., One Family Two Family Other b. Number of rooms in each family unit: Number of Bathrooms c. Is there a garage attached? d. Proposed Square footage of new construction. Dimensions e. Number of stories? f. Method of heating? Fireplaces or Woodstoves Number of each g. Energy Conservation Compliance. Masscheck Energy Compliance form attached? h. Type of construction i. Is construction within 100 ft. of wetlands? Yes No. Is construction within 100 yr. floodplain Yes No j. Depth of basement or cellar floor below finished grade k. Will building conform to the Building and Zoning regulations? Yes No . 1. Septic Tank City Sewer Private well City water Supply SECTION 7a-OWNER AUTHORIZATION-TO BE COMPLETED WHEN OWNERS AGENT OR CONTRACTOR APPLIES FOR BUILDING PERMIT I, property as Owner of the subject hereby authorize to act on my behalf, in all matters relative to work authorized by this building permit application. Signature of Owner Date Craig Orn as ized Agent hereby declare that the statements and information on the foregoing application are true and accurate,to the best of my knowledge and belief. Signed under the pains and penalties of perjury. Craig Orn Print Name Signature of Owner/ nt Date SECTION 8-CONSTRUCTION SERVICES 8.1 Licensed Construction Supervisor: Not Applicable ❑ Name of License Holder: Craig Orn CS-080034 Number Nu 734 Forest ST STE 400 Ma (borough MA 01752 License enseNu2021 Address Expiration Date 978-793-8584 Signature Telephone 9.Registered Home Improvement contractor: Not Applicable ❑ Sunrun Installation Services 180120 Company Name Registration Number 734 Forest ST STE 400 Marlborough MA 01752 10/13/2020 Address Z7 Expiration Date Telephone 978-793-8584 SECTIO 10-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...... ❑ 11. - Home Owner Exemption The current exemption for"homeowners"was extended to include Owner-occupied Dwellings of one(1) or two(2)families and to allow such homeowner to engage an individual for hire who does not possess a license,provided that the owner acts as supervisor.CMR 780 Sixth Edition Section 108.3.5.1. Definition of Homeowner:Person(s)who own a parcel of land on which he/she resides or intends to reside,on which there is,or is intended to be,a one or two family dwelling,attached or detached structures accessory to such use and/or farm structures.A person who constructs more than one home in a two-year period shall not be considered a homeowner. Such"homeowner shall submit to the Building Official,on a form acceptable to the Building Official,that he/she shall be responsible for all such work performed under the building permit As acting Construction Supervisor your presence on the job site will be required from time to time,during and upon completion of the work for which this permit is issued. Also be advised that with reference to Chapter 152(Workers'Compensation) and Chapter 153(Liability of Employers to Employees for injuries not resulting in Death)of the Massachusetts General Laws Annotated,you may be liable for person(s) you hire to perform work for you under this permit. The undersigned"homeowner"certifies and assumes responsibility for compliance with the State Building Code,City of Northampton Ordinances,State and Local Zoning Laws and State of Massachusetts General Laws Annotated. Homeowner Signature City of Northampton 212 Main Street, Northampton, MA 01060 Solid Waste Disposal Affidavit In accordance of the provisions of MGL c 40, S54, I acknowledge that as a condition of the building permit all debris resulting from the construction activity governed by this Building Permit shall be disposed of in a properly licensed solid waste disposal facility, as defined by MGL c 111, S 150A. Address of the work: 51 W Farms Rd The debris will be transported by: Sunrun Box Truck The debris will be received by: Dumpster @ 734 Forest ST STE 400 Marlborough MA 01752 Building permit number: Name of Permit Applicant Craig Orn ll a 1--;;7�' �C7 Date Signatuf of Permit Applicant The Commonwealth of Massachusetts = Department of IndustrialAccidents I Congress Street,Suite 100 Boston,MA 02114-2017 www massgov/dia Workers' Compensation Insurance Affidavit:Builders/Contractors/Electricians/Plumbers. TO BE FILED WITH THE PERMITTING AUTHORITY. Aimlicant Information Please Print Leizibly Name (Business/Organization/Individual):Sunrun Installation Services, Inc. Address:775 Fiero Lane, Suite 200 City/State/Zip:San Luis Obispo, CA 93401 Phone#:978-549-9438 Are you an employer?Check the appropriate boa: Type of project(required): I [D I am a employer with 35 employees(full and/or part-time).• 7. ❑New construction 2. I am a sole proprietor or partnership and have no employees working for me in 8. E]Remodeling any capacity.[No workers'comp,insurance required.] 3.[:]l am a homeowner doingall work myself t 9. ❑Demolition y [No workers'comp.insurance required.] ❑4.❑I am a homeowner and will be hiring contractors to conduct all work on my property. I will 10 Building addition ensure that all contractors either have workers'compensation insurance or are sole 11.❑Electrical repairs or additions proprietors with no employees. 12.Q Plumbing repairs or additions 5.[]I am a general contractor and I have hired the sub-contractors listed on the attached sheet. These sub-contractors have employees and have workers'comp.insurance.: 13.❑Roof repairs 6.❑We are a corporation and its officers have exercised their right of exemption per MGL c. 14.E✓ Other Rooftop Solar 152,§1(4),and we have no employees.[No workers'comp.insurance required.] 'Any applicant that checks box#1 must also fill out the section below showing their workers'compensation policy information. t Homeowners who submit this affidavit indicating they are doing all work and then hire outside contractors must submit a new affidavit indicating such. tContractors that check this box must attached an additional sheet showing the name of the sub-contractors and state whether or not those entities have employees. If the sub-contractors have employees,they must provide their workers'comp.policy number. Iain an employer that is providi g workers'compensation insurance for my employees. Below is the policy and job site information. Insurance Company Name:Liberty Insurance Corporation Policy#or Self-ins.Lic.#:WA7-64D-445522-029 Expiration Date: 10/01/2020 Job Site Address:51 W Farms Rd City/State/Zip:Northampton MA 0106 Attach a copy of the workers'compensation policy declaration page(showing the policy number and expiration date). Failure to secure coverage as req Ired under MGL c. 152,§25A is a criminal violation punishable by a fine up to$1,500.00 and/or one-year imprisonment,as well as civil penalties in the form of a STOP WORK ORDER and a fine of up to$250.00 a day against the violator.A copy of this statement may be forwarded to the Office of Investigations of the DIA for insurance coverage verification. I do hereby certify under the pains and penalties of perjury that the information provided above is true and correct. Signature: Date: Phone#:978-549-9438 Official use only. Do not write in this area,to be completed by city or town official. City or Town: Permit/License# Issuing Authority(circle one): 1.Board of Health 2.Building Department 3.City/Town Clerk 4.Electrical Inspector 5.Plumbing Inspector 6.Other Contact Person: Phone#: Craig Orn 734 Forest ST STE 400 Marlborough Tel # : 978-793-8584MA 01752 Email: mapermits@sunrun.com OR Craig.orn@sunrun.com Commonwealth of Massachusetts -� Division of Professional Licensure Board of Building Regulations and Standards visor Constructiori Supervisor Unrestricted-Build ngs of any usestruction groupwhich contain less than 35,000 cubic feet(991 cubic meters)of enclosed CS-080034 Expires: 01/22/2021 space. CRAIG M ORN 73 WALNUT ST OXFORD MA 01540 Commissioner Failure to possess a current edition of the Massachusetts State Building Code is cause for revocation of this license, i For information about this license Call(617)727-3200 or visit www.mass.gov/dpi i�1fr WIAMMaslrnncQ�O�C-7ZZ?JJdc�iidr//J Office of Consumer Affairs&Business Regulation HOME IMPROVEMENT CONTRACTOR TYPE:SuDolernent Card Registration valid for individual use only Registration Expiration before the expiration date. If found return to: 180120 10/13/2020 Office of Consumer Affairs and Business Regulation SUNRUN INSTALLATION SERVICES INC. 1000 Washington Street-Suite 710 Boston,MA 02118 CRAIG /-V 775 FIERO RO LANE SUITE 200 -"""'Tt —' SAN LUIS OBISPO,CA 93401 -- Undersecretary iV valid without signature A`�REP CERTIFICATE OF LIABILITY INSURANCE DATE(MM/DDIYYYY) 9/24/2019 THIS CERTIFICATE IS ISSUED AS A MATTER OF INFORMATION ONLY AND CONFERS NO RIGHTS UPON THE CERTIFICATE HOLDER. THIS CERTIFICATE DOES NOT AFFIRMATIVELY OR NEGATIVELY AMEND, EXTEND OR ALTER THE COVERAGE AFFORDED BY THE POLICIES BELOW. THIS CERTIFICATE OF INSURANCE DOES NOT CONSTITUTE A CONTRACT BETWEEN THE ISSUING INSURER(S), AUTHORIZED REPRESENTATIVE OR PRODUCER,AND THE CERTIFICATE HOLDER. IMPORTANT: If the certificate holder is an ADDITIONAL INSURED,the policy(ies)must have ADDITIONAL INSURED provisions or be endorsed. If SUBROGATION IS WAIVED,subject to the terms and conditions of the policy, certain policies may require an endorsement. A statement on this certificate does not confer rights to the certificate holder in lieu of such endorsement(s). PRODUCER CONTACT Arthur J. Gallagher&Co. NAME: Amanda Rivas Insurance Brokers of CA. Inc. License#0726293 PHONE EX ac No):4I5-536-8499 -415-536-8632 1255 Battery Street#450 E-MAIL San Francisco CA 94111 ADDRESS: amanda rivaS a' .Com INSURER S)AFFORDING COVERAGE NAIC# INSURER A:Navigators Specialty Insurance Company 36056 INSURED SUNRINC-01 INSURER :Liberty Mutual Fire Insurance Company 23035 Sunrun Installation Services, Inc. B 775 Fiero Lane, Suite 200 INSURER C:Libeq Insurance Corporation 42404 Ph#805-540-7643 INSURER D: San Luis Obispo CA 93401 INSURERE: INSURER F COVERAGES CERTIFICATE NUMBER:53293032 REVISION NUMBER: THIS IS TO CERTIFY THAT THE POLICIES OF INSURANCE LISTED BELOW HAVE BEEN ISSUED TO THE INSURED NAMED ABOVE FOR THE POLICY PERIOD INDICATED. NOTWITHSTANDING ANY REQUIREMENT, TERM OR CONDITION OF ANY CONTRACT OR OTHER DOCUMENT WITH RESPECT TO WHICH THIS CERTIFICATE MAY BE ISSUED OR MAY PERTAIN, THE INSURANCE AFFORDED BY THE POLICIES DESCRIBED HEREIN IS SUBJECT TO ALL THE TERMS, EXCLUSIONS AND CONDITIONS OF SUCH POLICIES.LIMITS SHOWN MAY HAVE BEEN REDUCED BY PAID CLAIMS. INSR ADDL SUBR LTR TYPE OF INSURANCEINSD AND POLICY NUMBER POLICY EFF POLICY EXP MM/DD/YYYYI (MM/DD/YYYY1 LIMITS A X COMMERCIAL GENERAL LIABILITY LA19CGL2303211C 10/1/2019 10/1/2020 CLAIMS-MADEFxIEACH OCCURRENCE $1,000,000 OCCUR PREMISES(Ea occur IDAMAGET encs) $1,000,000 X $50,000Retenbon MED EXP(Any one person) $5,000 PERSONAL&ADV INJURY $1,000,000 GEN'L AGGREGATE LIMIT APPLIES PER: GENERAL AGGREGATE $2,000,000 X POLICY[�C]PRO- LOC OTHER: ❑ JECT PRODUCTS-COMP/OP AGG $2,000,000 Total Poli LimK $10,000,000 B AUTOMOBILE LIABILITY AS2-641-445522-019 10/1/2019 10/1/2020 COMBINED SINGLE LIMIT $1,000,000 Ea accident X ANY AUTO OWNED SCHEDULED BODILY INJURY(Per person) $ AUTOS ONLY AUTOS BODILY INJURY(Per accident) $ HIRED NON-OWNED PROPERTY DAMAGE AUTOS ONLY AUTOS ONLY Per accident $ UMBRELLA LIAB Deductible $100K OCCUR EACH OCCURRENCE $ EXCESS LIAB CLAIMS-MADE AGGREGATE DED RETENTION$ C WORKERS EMPLOY RS'LI A ILITION WA7-64D-445522-029 10/1/2019 10/1/2020 X PER OTH- AND EMPLOYERS'LIABILITY Y/N STATUTE ER OFFICE /MEMB R/PARTNER/EXECUTIVE E.L.EACH ACCIDENT $1,000,000 OFFICER/MEMBER EXCLUDED? � NIA (Mandatory in If yes,describe under E.L.DISEASE-EA EMPLOYEE $1,000,000 DESCRIPTION OF OPERATIONS below E.L.DISEASE-POLICY LIMIT $1,000,000 DESCRIPTION OF OPERATIONS/LOCATIONS I VEHICLES (ACORD 101,Additional Remarks Schedule,may be attached if more space is required) WA7-64D-445522-029-$500,000 Deductible.Named Insureds:Sunrun Inc.,Sunrun Installation Services Inc.,Sunrun South LLC,AEE Solar,Inc.,Clean Energy Experts LLC,Sunrun Solar Electrical Corporation Evidence of Insurance. CERTIFICATE HOLDER CANCELLATION SHOULD ANY OF THE ABOVE DESCRIBED POLICIES BE CANCELLED BEFORE THE EXPIRATION DATE THEREOF, NOTICE WILL BE DELIVERED IN City of Northampton ACCORDANCE WITH THE POLICY PROVISIONS. 212 Main St Northampton MA 01060 AUTHORIZED REPRESENTATIVE ©1988-2015 ACORD CORPORATION. All rights reserved. ACORD 25(2016/03) The ACORD name and logo are registered marks of ACORD DocuSign Envelope ID:819E8495-0589-4582-A8B8-2E681BOB FF12 ,.. sunrun November 19, 2019 Subject: Structural Certification for Proposed Residential Solar Installation. Job Number: 221R-051HERR;Rev A, Dated 11/15/2019 Client: STEPHEN HERRELL Address: 51 W Farms RdNorthampton, MA, 01062 Attn: To Whom It May Concern A field observation was performed by a Sunrun qualified technician to document the existing conditions of the above mentioned address. Structural evaluation of loading was based on review of site observations and the design criteria listed Design Criteria: • 2015 IBC& IRC w/MA Amendments 780 CMR 9th Edition • Basic Wind Speed Vult = 117 mph (Vasd = 91 mph), Exposure B • Ground Snow Load =40 psf After review of the field observation report, I certify that the alteration to the existing structure, per the proposed solar panel layout provided, meets or exceeds the requirements of the applicable building code referenced above. Additionally, the PV module assembly and hardware supporting it have been reviewed to be in accordance with manufacturer's specifications and verified to meet the minimu JN Mgrs lrements referenced above. q JASON R �G BROWN 0 STR TURAL —+ DmuSlamdbj: A C'/STf 01EFBDFE56OA443... FSSIQNAL ENG\ 133 Technology Dr.,Suite 100, Irvine,CA 92618 P 949.393.0993 DocuSign Envelope ID:819E8495-0589-45B2-A8B8-2E681BOB FF12 �. sunrun - Structural Calculations for the STEPHEN HERRELL Residence PV Installation Date: 11/19/2019 Job Address: 51 W Farms Rd Northampton, MA, 01062 Job Number: 221R-051HERR Scope of Work These calculations are for the existing roof framing which supports the new PV modules as well as the attachment of the PV system to existing roof framing. All PV mounting equipment shall be designed and installed per manufacturer's approved installation specifications. Calculation Index Sheet Description 2 House Geometry, Live Loads, Snow Load, Wind Loading, & Dead Loading 3 Roof(2) Dead Loading, Roof(1) Framing Check 4 Roof(1) Framing Check cont., Roof(2) Framing Check 5 Roof(2) Framing Check cont., Rafter Attachment Check, Seismic Check, &Scope of Work Engineering Calculations Summary Code: 2015 IBC& IRC w/MA Amendments 780 CMR 9th Edition ASCE 7-10 Snow Load: S= 40 psf Live Load: LL= 20 psf Wind: Wind Speed UIt. (V)= 117 mph Exp. = B PV Dead Load: DPV= 3.0 psf PVZN OF MgSS 9c JASON R tiG gBROWN oocuSign9d by: STR TUBAL y 3&44*, &AM*. 01EFB9FE5E0A"3... AL 133 ENG\ 133 Technology Dr.,Suite 100, Irvine, CA 92618 1 P 949.393.0993 DocuSign Envelope ID:819E8495-0589-4582-A8B8-2E681BOB FF12 TM Address: 51 W Farms Rd ' s Northampton, MA,01062 2of5 Structrure Geometry: Mean Roof Height,N = 22 ft Eave Height,he = 18 ft Buiding Length,L = 38 ft Building Width,B = 14 ft Module Area = 20 ftZ Roof Pitch,0 = 19 degrees Live Load: Roof Live Load,Lr = 20 psf Equation 4.8-1 Snow Load: Ground Snow Load,pg = 40 psf Fig.7-1 Snow Importance Factor,Is = 1.00 Table 1.5-1 Thermal Factor,Cc = 1.1 Table 7-3 Exposure Factor,Ce = 0.9 Table 7-2 Roof Slope Factor,Cs = 1.00 Figure 7-2c Flat Snow Load,Pf = 35.0 psf Equation 7.3-1 Sloped Roof Snow Loads,Ps = 35.0 psf Equation 7.4-1 Is the width of the roof>20ft? Yes Drift Height,hd = 1.60 ft Figure 7-9 Roof slope for a rise of one,S 2.90 Unbalanced Width = 7.29 ft Fig 7-5 Y = 19 pcf Equation 7.7-1 Unbalanced Snow Load = 53.07 psf Fig 7-5 Wind Load: Basic Wind Speed(3s-gust),V = 117.0 mph Figure 26.5-1A VASD = 91 mph Building Occupancy Category = 2 Table 1.5-1 Wind Importance Factor,Iw = 1.00 Table 1.5-2 Exposure Category = B Sec 26.7.3 Topographic Factor,Kzr = 1.00 Equation 26.8-1 Velocity Pressure,qh = 20.85 Equation 30.4-1 Edge Zone,a = 3.00 ft Figure 30.5-1 Uplift(0.6W) Zone 1(psf) Zone 2(psf) Zone 3(psf) GCp = -0.84 -1.55 -2.43 Table 30.4-2 P30.4=.6 x qh x GCPzone = -10.51 -17.35 -20.65 Equation 30.4-1 Downward(0.6W) GCp = 0.43 0.43 0.43 Table 30.4-2 P30.4=.6 x qh x GCPzone = 9.60 9.60 9.60 Equation 30.4-1 Dead Load: Roof 1: Roof Walls-Exterior Composition Shingle 3.0 psf Wood 5.0 psf 5/8 OSB Sheathing 2.0 2x4 Studs @ 16" 2.0 2x4 Truss @ 24"OC 1.0 Gypsum 3.0 Misc.(Ceiling,Insulation,etc.) 1.0 Misc.(Insulation,etc.) 2.0 PV System,Ppv 3.0 Total Roof DL= 10.0 psf I Total Wall DL= 12.0 psf 133 Technology Dr.,Suite 100, Irvine,CA 92618 1 P 949.393.0993 DocuSign Envelope ID:819E8495-0589-4582-A8B8-2E681BOB FF12 iM Address: 51 W Farms Rd Northampton, MA,01062 3of5 Roof(2): Roof Walls-Exterior Composition Shingle 3.0 psf Wood 5.0 psf 5/8 OSB Sheathing 2.0 2x4 Studs @ 16" 2.0 2x8 Rafter @ 16"OC 2.0 Gypsum 3.0 Misc.(Ceiling,Insulation,etc.) 1.0 Misc.(Insulation,etc.) 2.0 PV System,Ppv 3.0 Total Roof DL= 11.0 psf Total Wall DL= 12.0 psf Roof(1)Framine Check: Roof Framing = 2x4 Truss @ 24"OC Timber Species = Spruce-Pine-Fir#1/#2 Max Beam Span = 6.08 ft b = 1.5 in d = 3.50 in Moment of Inertia,Ix = 5.36 in` Section Modulus,Sx = 3.06 in Bending Stress,Fb = 875 psi Elastic Modulus,Emin = 510000 psi Sheer Stress,Fv' = 135 psi CD(Wind) CD(Snow) CLS CM Ct Wood Adjustment Factors: 1.60 1.15 1.00 1.00 1.00 CL CF Cfu Ci Cr 1.00 1.50 1.00 1.00 1.15 PV Tributary Width,Wpv = 3.30 ft PV Tributary Length,Lpv = 4.0 ft PV Tributary Area,At = 13.2 ftZ PV Dead Point Load,PD=Ppvx At = 37 Ib Roof Distributed Load,wDL = 13 plf Load Case: 0.6DL+0.6W (CD=1.6) Roof Zone = 1 Pup=PnetxAt+0.6xPDXCOS(6) = 116 lb Mb(wind_up) = 30 Ib-ft Fb'(wind)=Fb XCD XCLS XCM XCt XCL XCF XCfu XCi xCr = 2415 psi Mallowable=Sx x Fb'(wind) = 616 Ib-ft > 30 OK Load Case: DL+0.6W (CD=1.6) Pdown=Pnet x At+PD x COS(8) = 164 Ib Mb(wind_down) = 117 Ib-ft Fb'(wind)=Fb XCD XCLS XCM XCt XCL XCF XCfu xCi XCr = 2415 psi Mallowable=Sx x Fb'(wind) = 616 Ib-ft > 117 OK Load Case: DL+0.75(0.6W)+0.75S (CD=1.6) Roof Snow Distributed Load,wSL = 70 plf Psnow=Ps x At = 437 Ib Mb(wind_snow) = 256 lb-ft Fb'(wind)=Fb XCD XCLS XCM XCt XCL XCF xCfu XCi XCr = 2415 psi Mallowable=Sx x Fb'(snow) = 616 Ib-ft > 2S6 OK 133 Technology Dr.,Suite 100, Irvine,CA 92618 1 P 949.393.0993 DocuSign Envelope ID:819E8495-0589-45B2-A8B8-2E681BOB FF12 TM Address: 51 W Farms Rd ' Northampton, MA,01062 4of5 Load Case: DL+S (CD=1.15) Roof Snow Distributed Load,wSL = 70 plf Psnow=Ps x At = 437 Ib Mb(snow) = 262 lb-ft Fb'(snow)=Fb XCD XCLS XCM XCt XCL XCF XCfu XCi XC, = 1736 psi Mallowable=Sx x Fb'(snow) = 443 Ib-ft > 262 OK Roof(2)Framin¢Check: Roof Framing = 2x8 Rafter @ 16"OC Timber Species = Spruce-Pine-Fir#1/#2 Max Beam Span = 13.00 ft b = 1.50 in d = 7.25 in Moment of Inertia,Ix = 47.63 in Section Modulus,Sx = 13.14 in' Bending Stress,Fb = 875 psi Elastic Modulus,Emin = 510000 psi Sheer Stress,FJ = 135 psi CD(Wind) CD(Snow) CLS CM Ct Wood Adjustment Factors: 1.60 1.15 1.00 1.00 1.00 CL CF Cf. Ci Cr 1.00 1.20 1.00 1.00 1.15 Roof(2)Framing Check Continued: PV Tributary Width,Wpv = 3.30 ft PV Tributary Length,Lpv = 4.00 ft PV Tributary Area,At = 13.20 ft' PV Dead Point Load,PD=Ppvx At = 37 Ib Roof Distributed Load,wDL = 10 plf Load Case: 0.6DL+0.6W (CD=1.6) Roof Zone = 1 Pup=Pnet x At+0.6 x Po x Cos(B) = 116 Ib Mb(wind_up) = 120 lb-ft Fb'(wind)=Fb XCD XCLS XCM XCt XCL XCF XCfu XCi XC, = 1932 psi Mallowable=Sx x Fb'(wind) = 2116 Ib-ft > 120 OK Load Case: DL+0.6W (CD=1.6) Pdown=Pnet x At+PD x COs(0) = 164 Ib Mb(wind_down) = 563 Ib-ft Fb'(wind)=Fb XCD XCLS XCM XCt XCL XCF XCfu XCi XCr = 1932 psi Mallowable=Sx x Fb'(wind) = 2116 Ib-ft > 563 OK Load Case: DL+0.75(0.6W)+0.75S (CD=1.6) Roof Snow Distributed Load,wSL = 47 plf Psnow=Ps x At = 437 Ib Mb(wind_snow) = 1195 lb-ft Fb'(wind)=Fb XCD XCLS XCM XCt XCL XCF XCfu XCi XCr = 1932 psi Mallowable=Sx x Fb'(snow) = 2116 Ib-ft > 1195 OK 133 Technology Dr.,Suite 100, Irvine, CA 92618 1 P 949.393.0993 DocuSign Envelope ID:819E8495-0589-4582-A8B8-2E681BOB FF12 iM Address: 51 W Farms Rd M Northampton, MA,01062 5of5 Load Case: DL+S (CD=1.15) Roof Snow Distributed Load,wSL = 47 plf Psnow=Ps x At = 437 Ib Mb(snow) = 1225 lb-ft Fb'(snow)=Fb xCD xCLs xCM xCt xCL xCF xCfu xCi xCr = 1389 psi Mallowable=Sx x Fb'(snow) = 1521 Ib-ft > 1225 OK Rafter Attachments:0.6D+0.6W(Zone 2) Pupw=At x Pnet = 230 Ib Connector Uplift Capcity per SnapNRack Test Results = 604 Ib > 230 OK 5/16"Lag Screw Withdrawl Value = 205 Ib/in Table 12.2A-NDS Lag Screw Penetration = 2.5 in Allowable Capacity with CD = 820 Ib > 230 OK Seismic Check: Existing Dead Load: Solar Dead Load: Aroofexisting = 532 ftZ Wpanel = 42 Ib Wroofexisting = 3724 Ib NUmpanel = 20 Awallexisting = 1872 ftz Wpanel_tot = 840 Ib Wwallexisting = 22464 lb Wbos = 196 lb Wtotal = 26188 Ib Warray = 1036 Ib %increase=(Wtotal+Warray)/Wtotal = 27224 *100%-100% = 3.96% ** 26188 **The increase in weight as a result of the solar system is less than 10%of the existing structure and therefore no further seismic analysis is required. Limits of Scope of Work and Liability We have based our structural capacity determination on applicable building codes,professional engineering inspection and design experience,opinions and judgments.The calculations produced for this dwelling's assessment are only for the proposed solar panel installation referenced in the stamped plan set and were made according to generally recognized structural anlaysis standards and procedures. 133 Technology Dr.,Suite 100, Irvine,CA 92618 1 P 949.393.0993 SCOPE OF WORK GENERAL NOTES LEGEND AND ABBREVIATIONS TABLE OF CONTENTS FGE DESCRIPTION • SYSTEM SIZE: 660OW DC, 480OW AC •ALL WORK SHALL COMPLY WITH IBC 2015, MUNICIPAL CODE,AND ALL SOLAR MODULES COVER SHEET • MODULES: (20) LG ELECTRONICS: LG330NlC-A5 MANUFACTURERS' LISTINGS AND INSTALLATION INSTRUCTIONS. SE SERVICE ENTRANCE• INVERTER(S): • PHOTOVOLTAIC SYSTEM WILL COMPLY WITH NEC 2017. SITE PLAN (20) ENPHASE ENERGY: IQ7-60-X-US • ELECTRICAL SYSTEM GROUNDING WILL COMPLY WITH NEC 2017. PV-3.0 LAYOUT • RACKING: SNAPNRACK RLU; RL UNIVERSAL, MOUNT KIT, • PHOTOVOLTAIC SYSTEM IS UNGROUNDED. NO CONDUCTORS ARE SOLIDLY MP MAIN PANEL SEE DETAIL SNR-DC-00369 GROUNDED IN THE INVERTER. SYSTEM COMPLIES WITH 690.35. PV-4.0 ELECTRICAL • MODULES CONFORM TO AND ARE LISTED UNDER UL 1703. SNR MOUNT PV-5.0 SIGNAGE • INVERTER CONFORMS TO AND IS LISTED UNDER UL 1741. SP SUB-PANEL SNR MOUNT&SKIRT • RACKING CONFORMS TO AND IS LISTED UNDER UL 2703. • SNAPNRACK RACKING SYSTEMS, IN COMBINATION WITH TYPE I, OR TYPE II MODULES,ARE CLASS A FIRE RATED. F01 PV LOAD CENTER ® CHIMNEY • RAPID SHUTDOWN REQUIREMENTS MET WHEN INVERTERS AND ALL CONDUCTORS ARE WITHIN ARRAY BOUNDARIES PER NEC 690.12(1). ATTIC VENT • CONSTRUCTION FOREMAN TO PLACE CONDUIT RUN PER 690.31(G). FS-1 SUNRUN METER •ARRAY DC CONDUCTORS ARE SIZED FOR DERATED CURRENT. • 10.45 AMPS MODULE SHORT CIRCUIT CURRENT. FLUSH ATTIC VENT • 16.32 AMPS DERATED SHORT CIRCUIT CURRENT[690.8 (a) &690.8 (b)]. PM DEDICATED PV METER • PV INSTALLATION COMPLIES WITH THE NEC 2017 ARTICLE 690.12(B)(2). o PVC PIPE VENT CONTROLLED CONDUCTORS LOCATED INSIDE THE ARRAY BOUNDARY ARE INVERTER(S)WITH ® METAL PIPE VENT LIMITED TO 80 VOLTS WITHIN 30 SECOND OF A RAPID SHUTDOWN INITIATION INV INTEGRATED DC DISCONNECT AND AFCI ® T-VENT AC AC DISCONNECT(S) SATELLITE DISH CDC DISCONNECT(S) FIRE SETBACKS ll COMBINER BOXHARDSCAPE F 7 INTERIOR EQUIPMENT —PL— PROPERTY LINE L :11 SHOWN AS DASHED SCALE: NTS A AMPERE sunrun AC ALTERNATING CURRENT AFCI ARC FAULT CIRCUIT INTERRUPTER AZIM AZIMUTH VICINITY MAP COMP COMPOSITION #180120 DC DIRECT CURRENT (E) EXISTING 734 FOREST STREET#400,MARLBOROUGH,MA 01752 EXT EXTERIOR PHONE 888.657.6527 FAX 805.528.9701 FIRM FRAMING INT INTERIOR CUSTOMER RESIDENCE: LBW LOAD BEARING WALL STEPHEN HERRELL MAG MAGNETIC 51 W FARMS RD, MSP MAIN SERVICE PANEL NORTHAMPTON, MA, 01062 (N) NEW NTS NOT TO SCALE TEL. (413)896-1762 OC ON CENTER AP #: NHAM-000035-000010-000001 PRE-FAB PRE-FABRICATED PROJECT NUMBER: PSF POUNDS PER SQUARE FOOT 221 R-051 HERR PV PHOTOVOLTAIC Q.� TL TRANSFORMERLESS DESIGNER: (415)580-6920 ex3 TYP TYPICAL 'gurtsPtl Rfl V VOLTS SAGNIK MITRA W WATTS SHEET REV NAME DATE COMMENTS COVER SHEET 151 West Farms Road REV: A 11/15!2019 PAGE PV-1 .0 ARRAY TRUE MAG PV AREA SITE PLAN -SCALE=3/64" = 1'0" PITCH AZIM AZIM (SQFT) ® AR-01 19° 88° 102° 110.6 AR-02 19° 268° 282° 147.5 AR-03 20° 1810 195° t__110.6 �MP (N)ARRAY AR-03 INV C)EEI SE (E) RESIDENCE PL PL PL _ PL P PL L PL PL PL J a � :;� •• Vii.,':S' � v • U) a `:. sunrun #180120 734 FOREST STREET#400 MARLBOROUGH,MA 01752 PHONE 888.657.6527 FAX 805 528.9701 CUSTOMER RESIDENCE: PL PL PL PL PL PL PL PL PL STEPHEN HERRELL 51 W FARMS RD, NORTHAMPTON, MA, 01062 TEL. (413)896-1762 (N)ARRAY AR-02 (E) DETACHED APN#: NHAM-000035-000010-000001 STRUCTURE PROJECT NUMBER: 221 R-051 HERR (N)ARRAY AR-01 DESIGNER: (415)580-6920 ex3 SAGNIK MITRA SHEET SITE PLAN REV-. A 11/15/2019 PAGE PV-2.0 NOTE: MICRO-INVERTERS INSTALLED UNDER EACH MODULE DocuSign Envelope ID:819E8495-0589-45B2-A8B8-2E681BOBFFI2 ROOF TYPE MOUNTING DETAIL ROOF ROOF FRAME FRAME TYPE MAX FRAME OC ROOF EDGE MAX PEN MAX Moo. DESIGN CRITERIA HEIGHT EXPOSURE MATERIAL SPAN SPACING ZONE SPACING OVERHANG MODULES: AR-01 COMP SHINGLE- RLU RL UNIVERSAL, MOUNT KIT, SEE DETAIL 1 STORY ATTIC WOOD 2X4 PRE-FABRICATED TRUSSES 6'- 1" 24" 3' 4'-0" 1'- 10" LG ELECTRONICS: LG330N1 C-A5 SNR-DC-00369 MODULE DIMS: RL UNIVERSAL, MOUNT KIT, SEE DETAIL 66.38"x 40"x 1.57" (40mm) SNR-DC-00369 AR-02 COMP SHINGLE- RLU 1 STORY ATTIC WOOD 2X4 PRE-FABRICATED TRUSSES 6'61- 11, 24" 3' 4' -0" 1'- 10" MODULE CLAMPS: Portrait: 7.9"- 15.7" AR-03 COMP SHINGLE- RLU RL UNIVERSAL, MOUNT KIT, SEE DETAIL 1 STORY VAULTED WOOD 2X8 RAFTERS 13'-0" 16" 3' 4' -0" 1'- 10" Landscape: 0"-4.7" SNR-DC-00369 MAX DISTRIBUTED LOAD: 3 PSF SNOW LOAD: 40 PSF D1 -AR-01 -SCALE: 1/8" = 1'-0" D2 -AR-02 -SCALE: 1/8" = 1'-0" WIND SPEED: PITCH: 19° PITCH: 19° 117 MPH 3-SEC GUST. AZIM: 88° AZIM: 268° S.S. LAG SCREWS: 5/16"x4.0": 2.5" MIN EMBEDMENT r 2'-11" 7" NOTE: } 23'-4" 11'-2" - 11'-2" 25'-8" INSTALLERS TO VERIFY RAFTER _ ' ' SIZE, SPACING AND SLOPED $-- $ 1' 1 SPANS,AND NOTIFY E.O.R. OF 4'-5" I ANY DISCREPANCIES BEFORE —�. 6 9 PROCEEDING. 4'TYP 10'-2" 6-9„ - - E3 B PENETRATION SPACING: -�4'TYP�- FULLY STAGGERED 5'-5" ROW SPACING: 1.00" BETWEEN ROWS 2' 2' COLUMN SPACING: 0.75" BETWEEN COLUMNS sunrun D3 -AR-03 -SCALE: 3/16" = 1'-0" #180120 PITCH: 20° AZIM: 181° 16'-9" 6'-8" PH FOREST STREET#400,MARLBOROUGH,MA 01752 PHONE 888.657.6527 FAX 805.528.9701 1' _ CUSTOMER RESIDENCE: STEPHEN HERRELL �—4'TYP—� 4-5 51 W FARMS RD, NORTHAMPTON, MA, 01062 TEL. (413)896-1762 APN#: NHAM-000035-000010-000001 PROJECT NUMBER: 6'-9" 221 R-051 HERR ��SN OF 4140 S DESIGNER: (415)580-6920 ex3 �� qc SAGNIK MITRA oma' JASON R `G DocuSigne BROWN 's.. SHEET R TURAL LAYOUT E01EFB9FE �, O G�STEp,�c� �<cQ REV: A 11/15/2019 FFSS/ONAL PAGE PV-3.0 SEE SITE PLAN FOR NORTH ARROW 1 2 120/240 VAC SINGLE PHASE SERVICE OMETER#: M NATIONAL GRID M032512140 UTILITY GRID I C 1 EXISTING 100A BREAKER 1 LOAD SIDE TAP fff fff + fff (20)LG ELECTRONICS: LG330NlC-A5 MODULES AND MICRO-INVERTER PAIRS 1 EXISTING 100A (N) 125A ENPHASE IQ C (N) LOCKABLE (N)MA SMART AC COMBINER BOX MAIN BREAKER BLADE TYPE UTILITY (N)LOCKABLE FUSED AC REVENUE BLADE TYPE — — — (20)ENPHASE ENERGY: IQ7-60-X-US 1 DISCONNECT METER AC DISCONNECT JUNCTION BOX _ _ — 4 3 3 3 2 OR EQUIVALENT 1 s (1) BRANCH OF(8)MICRO-INVERTERS[A] EXISTING (1) BRANCH OF(12)MICRO-INVERTERS[B] — 125A o��, Oo�.o �� • - -- - --- MAIN FACILITY PANEL 25A FUSES LOADS T FACILITY ND SQUARE D 240V METER SOCKET SQUARED 20A BREAKER[A] D221 NRB 100A CONTINUOUS DU221 RB 20A BREAKER[B] 3R,30A UTILITY SIDE OF CIRCUIT 3R,30A,2P 120/240VAC CONNECTS TO TOP LUGS- 120/240VAC (LINE AT TOP LOAD AT BOTTOM) CONDUIT SCHEDULE NOTES TO INSTALLER: • CONNECT SYSTEM VIA INSULATION PIERCING ON LOAD SIDE OF MAIN # CONDUIT CONDUCTOR NEUTRAL GROUND BREAKER IN MAIN PANEL ENCLOSURE. CONDUCTORS ARE FIELD INSTALLED. 1 NONE (2) 12 AWG PER ENPHASE Q NONE (1) 6 AWG BARE COPPER CABLE BRANCH sunrun 2 3/4" EMT OR EQUIV. (4) 10 AWG THHN/THWN-2 NONE (1) 8 AWG THHN/THWN-2 3 3/4" EMT OR EQUIV. (2) 10 AWG THHN/THWN-2 (1) 10 AWG THHN/THWN-2 (1) 8 AWG THHN/THWN-2 4 3/4" EMT OR EQUIV. (2) 6 AWG THHN/THWN-2 (1)6 AWG THHN/THWN-2 (1) 8 AWG THHN/THWN-2 #180120 734 FOREST STREET#400,MARLBOROUGH,MA 01752 PHONE 888.657.6527 FAX 805.528.9701 CUSTOMER RESIDENCE: STEPHEN HERRELL 51 W FARMS RD, NORTHAMPTON, MA, 01062 MODULE CHARACTERISTICS TEL. (413)896-1762 LG ELECTRONICS: LG330NlC-A5: 330 W APN#: N HAM-000035-00001 0-000001 OPEN CIRCUIT VOLTAGE: 40.9 V PROJECT NUMBER: MAX POWER VOLTAGE: 33.7 V 221 R-051 HER SHORT CIRCUIT CURRENT: 10.45 A DESIGNER: (415)580-6920 ex3 SAGNIK MITRA SHEET ELECTRICAL REV-.A 11/15/2019 PAGE PV-4.0 MENPHOTOVOLTAIC AC DISCONNECTWARNING: PHOTOVOLTAI O. 00 . PHOTOVOLTAIC SYSTEM POWER SOURCE 240 VAC COMBINER PANEL ELECTRICAL SHOCK HAZARD LABEL LOCATION: DO NOT ADD LOADS LABEL LOCATION: AC DISCONNECT(S),PHOTOVOLTAIC SYSTEM POINT OF DO NOT TOUCH TERMINALS. INTERIOR AND EXTERIOR DC CONDUIT EVERY 10 FT,AT EACH TURN,ABOVE AND INTERCONNECTION. LABEL LOCATION: TERMINALS ON BOTH THE LINE BELOW PENETRATIONS,ON EVERY JB/PULL BOX CONTAINING DC CIRCUITS. PER CODE(S):CEC 2016:690.54,NEC 2017:690.54,NEC PHOTOVOLTAIC AC COMBINER(IF PER CODE(S):CEC 2016:690.31(G)(3),690.31(G)(4),NEC 2017:690.31(G)(3), 2014:690.54,NEC 2011:690.54 APPLICABLE). AND LOAD SIDES MAY BE 690.31(G)(4),NEC 2014:690.31(G)(3),690.31(G)(4),NEC 2011:690.31(E)(3), PER CODE(S):NEC 2017:705.12(B)(2)(3)(b), 690.31(E)(4),IFC 2012:605.11.1.4 NEC 2014:705.12(D)(2)(3)(c),NEC 2011: ENERGIZED IN THE OPEN 705.12(D)(4) POSITION NOTES AND SPECIFICATIONS: LABEL LOCATION: •SIGNS AND LABELS SHALL MEET THE REQUIREMENTS OF THE NEC 2017 ARTICLE INVERTER(S),AC DISCONNECT(S),AC COMBINER PANEL 110.21(B),UNLESS SPECIFIC INSTRUCTIONS ARE REQUIRED BY SECTION 690,OR (IF APPLICABLE). IF REQUESTED BY THE LOCAL AHJ. RAPID SHUTDOWN PER CODE(S): NEC 2017:692.17 •SIGNS AND LABELS SHALL ADEQUATELY WARN OF HAZARDS USING EFFECTIVE WORDS,COLORS AND SYMBOLS. OR SOLAR •LABELS SHALL BE PERMANENTLY AFFIXED TO THE EQUIPMENT OR WIRING PV SYSTEMMETHOD AND SHALL NOT BE HAND WRITTEN,UNLESS PORTIONS OF LABELS OR MARKINGS ARE VARIABLE,OR THAT COULD BE SUBJECT TO CHANGES,SHALL POWER SOURCE OUTPUT BE PERMITTED TO BE HAND WRITTEN AND SHALL BE LEGIBLE. •LABEL SHALL BE OF SUFFICIENT DURABILITY TO WITHSTAND THE ENVIRONMENT CONNECTION INVOLVED. LABEL LOCATION: DO NOT RELOCATE THIS ON OR NO MORE THAN 1 M(3 FT)FROM THE SWITCH. •SIGNS AND LABELS SHALL COMPLY WITH ANSI Z535.4-2011,PRODUCT SAFETY PER CODE(S):NEC 2017:690.56(C)(3) SIGNS AND LABELS,UNLESS OTHERWISE SPECIFIED. OVERCURRENT DEVICE •DO NOT COVER EXISTING MANUFACTURER LABELS. LABEL LOCATION: ADJACENT TO PV BREAKER(IF APPLICABLE). PER CODE(S):NEC 2017:705.12(B)(2)(3)(b) SOLAR PV SYSTEM EQUIPPED DUAL POWER SUPPLY WITH RAPID SHUTDOWN SOURCES: UTILITY GRID sunrun AND PV SOLAR ELECTRIC SYSTEM LABEL LOCATION: UTILITY SERVICE METER AND MAIN TURN RAPID SHUTDOWN SERVICE PANEL. SWITCH TO THE"OFF" SOLAR ELECTRIC #180120 PER CODE(S):NEC 2017:705.12(13)(2)(3)(b), NEC 2014:705.12(D)(3),NEC 2011: POSITION TO SHUT DOWN PV SYSTEM AND REDUCE 734 FOREST STREET#400,MARLBOROUGH,MA 01752 PHONE 705.12(D)(4) FAX B 585289706527 SHOCK HAZARD IN THE ARRAY. CUSTOMER RESIDENCE: STEPHEN HERRELL 51 W FARMS RD, THIS EQUIPMENT FED BY NORTHAMPTON, MA, 01062 MULTIPLE SOURCES. TOTAL LABEL LOCATION: TEL.(413)896-1762 RATING OF ALL ON OR NO MORE THAT 1 M(3 FT)FROM THE SERVICE APN#: NHAM-000035 000010-000001 DISCONNECTING MEANS TO WHICH THE PV SYSTEMS OVERCURRENT DEVICES ARE CONNECTED. PROJECT NUMBER: EXCLUDING MAIN SUPPLY PER CODE(S):NEC 2017:690.56(C)(1)(a) 221R-051HERR OVERCURRENT DEVICE SHALL DESIGNER: (415)580-6920 ex3 NOT EXCEED AMPACITY OF SAGNIK MITRA BUSBAR. SHEET LABEL LOCATION: SIGNAGE UTILITY SERVICE METER AND MAIN SERVICE PANEL. PER CODE(S):CEC 2016:705.12(D)(2)(3)(c),NEC 2017: 705.12(B)(2)(3)(b),NEC 2014:705.12(D)(2)(3)(c),NEC REV:A 11/15/2019 2011:705.12(D)(4) PAGE PV-5.0