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32A-006 (2) 24 WALNUT ST BP-2019-0287 GIs#: COMMONWEALTH OF MASSACHUSETTS Map:Block: 32A-006 CITY OF NORTHAMPTON Lot:-001 PERSONS CONTRACTING WITH UNREGISTERED CONTRACTORS Permit: Building DO NOT HAVE ACCESS TO THE GUARANTY FUND (MGL c.142A) Category: SOLAR ELECTRIC SYSTEM BUILDING PERMIT Permit# BP-2019-0287 Project# JS-2019-000479 Est. Cost: $9163.00 Fee: $75.00 PERMISSION IS HEREBY GRANTED TO: Const.Class: Contractor: License: Use Group: SUNRUN INC 080034 Lot Size(sg. ft.): 11499.84 Owner: MERRILL ROSAMOND Zoning:URC(108)/ Applicant. SUNRUN INC AT. 24 WALNUT ST Applicant Address: Phone: Insurance: 734 FOREST ST STE 400 (978) 793-8584 WC MARLBOROMA01752 ISSUED ON.9/10/2018 0:00:00 TO PERFORM THE FOLLOWING WORK.ROOFTOP SOLAR SYSTEM - 14 PANELS POST THIS CARD SO IT IS VISIBLE FROM THE STREET Inspector of Plumbing Inspector of Wiring D.P.W. Building Inspector Underground: Service: Meter: Footings: Rough: Rough: House# Foundation: Driveway Final: Final: Final: ,rough Frame: Gas: Fire Dmartment Fireplace/Chimney: Rough: Oil: Insulation: Final: Smoke: Final: THIS PERMIT MAY BE REVOKED BY THE CITY OF NORTHAMPTON UPON VIOLATION OF ANY OF ITS RULES AND REGULATIONS. Certificate of Occupancy Signature: FeeType: Date Paid: Amount: Building 9/10/2018 0:00:00 $75.00 212 Main Street,Phone(413)587-1240,Fax: (413)587-1272 Louis Hasbrouck—Building Commissioner 6 Fe City of Northampton Status of Permit Department use only S `C�SPEG�6 NS uilding Department Curb Cut/Driveway Permit OF�v��p�j�N tTP� 212 Main Street Sewer/Septic Availability OEP�G Room 100 Water/Well Availability N Northampton, MA 01060 Two Sets of Structural Plans phone 413-587-1240 Fax 413-587-1272 Plot/Site Plans Other Specify APPLICATION TO CONSTRUCT,ALTER,REPAIR, RENOVATE OR DEMOLISH A ONE OR/TWO FAMILY DWELLING SECTION 1 -SITE INFORMATION 6 p t -,:4- g r 1.1 Property Address: This section to be completed by office 24 Walnut Street Map 32A Lot 006 Unit 001 Zone Overlay District Elm St.District CB District SECTION 2-PROPERTY OWNERSHIP/AUTHORIZED AGENT 2.1 Owner of Record: Rosamond L Merrill 24 Walnut Street Northampton MA 01060 Name(Print) Current Mailing Address: Signature Telephone 617) 642-7459 2.2 Authorized Agent: Craig Orn 734 Forest Street, Unit 400, Marlborough, MA 01752 Name(Print) Current Mailing Address: (978) 793-8584 Signature Telephone SECTION 3-ES MATED CONSTRUCTION COSTS Item Estimated Cost(Dollars)to be Official Use Only complete by permit applicant 1. Building 2,748.00 (a)Building Permit Fee 2. Electrical 6,415.00 (b)Estimated Total Cost of Construction from 6 3. Plumbing Building Permit Fee 4. Mechanical(HVAC) *75 5. Fire Protection 6. Total=0 +2+3+4+5) Check Number -5a4�ME This Section For Official Use Only Building Permit Number: Date Issued: Signature: Building Commissioner/Inspector of Buildings Date E <: �' �� 1' r F `.���� i J`� 1 � � _ . � Section 4. ZONING All Information Must Be Completed. Permit Can Be Denied Due To Incomplete Information Existing Proposed Required by Zoning This column to be filled in by Building Department Lot Size Frontage Setbacks Front Side L: R: L: R: Rear Building Height Bldg. Square Footage % Open Space Footage % (Lot area minus bldg&paved parking) #of Parking Spaces Fill: (volume&Location) A. Has a Special Permit/Variance/Finding ever been issued for/on the site? NO O DON'T KNOW 0 YES O IF YES, date issued: IF YES: Was the permit recorded at the Registry of Deeds? NO O DONT KNOW O YES O IF YES: enter Book Page and/or Document# B. Does the site contain a brook, body of water or wetlands? NO O DONT KNOW © YES O IF YES, has a permit been or need to be obtained from the Conservation Commission? Needs to be obtained O Obtained O Date Issued: C. Do any signs exist on the property? YES O NO O IF YES, describe size, type and location: D. Are there any proposed changes to or additions of signs intended for the property? YES O NO O IF YES, describe size, type and location: E. Will the construction activity disturb(clearing, grading,excavation,or filling)over 1 acre or is it part of a common plan that will disturb over 1acre? YES No Q (No ground disturbance, rooftop mounted) IF YES,then a Northampton Storm Water Management Permit from the DPW is required. SECTION 5-DESCRIPTION OF PROPOSED WORK(check all applicable) New House ❑ Addition 0 Replacement Windows Alteration(s) Roofing ❑ Or Doors O Accessory Bldg. ❑ Demolition ❑ New Signs [l3] Decks [0 Siding[O] Other[54 Brief Description of Proposed Installation of an interconnected rooftop solar system. Work: p y Alteration of existing bedroom Yes ✓ No Adding new bedroom Yes ✓ No Attached Narrative Renovating unfinished basement Yes VNo Plans Attached Roll -Sheet 6a..If New house and or addition to existing 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. I. 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 1, Rosamond L Merrill as Owner of the subject property hereby authorize Sunrun / Craig Orn to act on my behalf, in all matters relative to work authorized by this building permit application. Signature of Owner Date i Craig Orn as Owner/Authorized 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/Agent Date SECTION 8-CONSTRUCTION SERVICES 8.1 Licensed Construction Supervisor: Not Applicable ❑ Name of License Holder: Craig Orn CS-080034 License Number 734 Forest Street, Unit 400, Marlborough, MA 01752 01/22/2019 Address Expiration Date 978) 793-8584 Signature Telephone 9. Registered Home Improvement Contractor: Not Applicable ❑ Sunrun 178937 Company Name Registration Number 734 Forest Street, Unit 400, Marlborough, MA 01752 06/02/2018 Address Expiration Date Telephone (978) 549-9438 SECTION 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....... a 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: 24 Walnut Street The debris will be transported by: Workcrew The debris will be received by: Shop dumpster @ 734 Forest St., 01752 Building permit number: Name of Permit Applicant Sunrun / Craig Orn Date Signature of Permit Applicant i i The Commonwealth of Massachusetts Department of Industrial Accidents = I Congress Street, Suite 100 d Boston,MA 02114-2017 www mass.gov/dia lVorkers'Compensation Insurance Affidavit: Builders/Contractors/Electricians/Plumbers. TO BE FILED WITH THE PERMITTING AUTHORITY. Applicant Information Please Print Legibly Name (Business/Organization/Individual):Sunrun 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 box: Type of project(required): 1.E)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. ❑ Remodeling any capacity.[No workers'comp.insurance required.] 9. El Demolition 3.❑I am a homeowner doing all work myself.[No workers'comp.insurance required.]' 10 ❑Building addition 4.❑I am a homeowner and will be hiring contractors to conduct all work on my property. I will ensure that all contractors either have workers'compensation insurance or are sole 11.❑Electrical repairs or additions proprietors with no employees. 12.❑Plumbing repairs or additions 5.M I am a general contractor and I have hired the sub-contractors listed on the attached sheet. 13 Q Roof repairs These sub-contractors have employees and have workers'comp.insurance.# 14. Other Rooftop Solar 6.❑We are a corporation and its officers have exercised their right of exemption per MGL c. 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. 'Contractors 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. I am an employer that is providing workers'compensation insurance for my employees. Below is the policy and job site information. Insurance Company Name:Zurich American Insurance Company Policy#or Self-ins.Lic.#:WC013696003&WC013696103 Expiration Date: 10/01/2018 Job Site Address:24 Walnut Street 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 required 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 7�fitnhat the information provided above is true and correct. Si nature: Date: / Phone#:978-793-8584 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#: ii Craig Orn / 734 Forest Street, Unit 400, Marlborough, MA 01752 (978)793-8584 craig.orn@sunrun.com mapermits@sunrun.com Massachusetts Department of Public Safety Construction Supervisor Board of Building Regulations and Standards Restricted to: Unrestricted-Buildings of any usegroup which contain License: CS-080034 less than 35,000 cubic feet (991 cubic meters)of Construction Supervisor enclosed space. CRAIG M ORN 73 WALNUT ST OXFORD MA 01540 Failure to possess a current edition of the Massachusetts Expiration: State Building Code is cause for revocation of this license. Commissloner 01122/2019 DPS Licensing information visit:WWW.MASS.GOVIDPS � '��e` Ifcrll rTrn r�atrr��/lr 9r!r"f•1di,Unr�t�vl'rrf- Office of Consumer Affairs&Busirms RegWoWn HOM E IM PROVEM ENT CONTRACTOR Type: Sia.ipsementCsrd RSrlStrall9Q 60120 10113/2ots Sunnin Installation Services Inc. Craig Om 775 Fiero Lane Suite 2CO c �w�-- San Luis Obispo.CA 93401 L Undersecretary ILI LJ A4Wi7gt l.:i1�:1�aMrui J cli}+ +yic Registration valid tof Individual use only before the expiration date, if round return to: Office of consumer Affairs and Business Regulation 10 Park Plaza-Suite 5170 Boston,MA 02116 ,11tof valid without signature httpsY/mail.google.com/mail/uf0/prober/159db3eO53bd6413?projector=l 1/1 ,a►16—. � CERTIFICATE OF LIABILITY INSURANCE [9,DATE 11/2017 OmvY) 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(les) 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 NAME: Arthur J. Gallagher Co. PHONE .415-546-9300 FAX 415-536-8499 Insurance Brokers off CA. Inc. License#0726293 E-MAIL 1255 Battery Street#450 San Francisco CA 94111 INSURERS AFFORDING COVERAGE NAIC# INSURERA:Zurich American Insurance Company 16535 INSURED SUNRINC-01 INSURER B:Navigators Specialty Insurance Company 36056 Sunrun Installation Services, Inc. INSURER C: 775 Fiero Lane, Suite 200 San Luis Obispo, CA 93401 INSURER D INSURER E: INSURER F COVERAGES CERTIFICATE NUMBER:926932864 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, 1EFF POLICY EXP �7R TYPE OF INSURANCE INSD WVD POLICY NUMBER MM DIDY/YYW) (MM/DD1YYYYJ LIMITS B X COMMERCIAL GENERAL LIABILITY Y LA17CGL2303211C 10/1/2017 10/1/2018 EACH OCCURRENCE $1,000,000 CLAIMS-MADE X1 OCCUR DAMA E T RENTED PREMISES Ea occurrence $300,000 X $50,000 Retention 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 CET [�] LOC PRODUCTS-COMP/OP AGG $2,000,000 OTHER: Total Policy Limit $10,000,000 A AUTOMOBILE LIABILITY Y BAP915542504 10/1/2017 10/1/2018 Ea accident $2,000,000 X ANY AUTO BODILY INJURY(Per person) $ OWNED SCHEDULED BODILY INJURY Per accident $ AUTOS ONLY AUTOS ( ) HIRED NON-OWNED PROPERTY DAMAGE AUTOS ONLY L $ AUTOS ONLY Per accident $ UMBRELLA LIAB OCCUR EACH OCCURRENCE $ EXCESS LIAB__HCLAIMS-MADE AGGREGATE $ DED RETENTION$ $ A WORKERS COMPENSATION WC013696003 10/112017 10/1/2018 PER OTH- A AND EMPLOYERS'LIABILITY y/N WC013696103 10/1/2017 10/1/2018 X STATUTE ER ANY PROPRIETOR/PARTNER/EXECUTIVE E.L.EACH ACCIDENT $1,000,000 OFFICER/MEMBER EXCLUDED? ElNIA (Mandatory in NH) E.L.DISEASE-EA EMPLOYEE $1,000,000 If yes,describe under DESCRIPTION OF OPERATIONS below E.L.DISEASE-POLICY LIMIT $1,000,000 DESCRIPTION OF OPERATIONS/LOCATIONS/VEHICLES (ACORD 101,Additional Remarks Schedule,may be attached If more space is required) WC013696003-$25,000 Deductible;WC013696103-FL, Hl, MA, NJ, NY, OR,VA,WI onlyy. 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 City of Northampton THE EXPIRATION DATE THEREOF, NOTICE WILL BE DELIVERED IN 212 Main St ACCORDANCE WITH THE POLICY PROVISIONS. 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 . sunrun September 05, 2018 Subject: Structural Certification for Proposed Residential Solar Installation. Job Number: 221R-024MERR; Plan Set: Rev A, Dated 8/28/18 Client: Robin Merrill Address: 24 Walnut Street, Northampton, MA, 01060 Attn:To Whom It May Concern A field observation was performed to document the existing framing of the above mentioned address. From the field observation, the existing roof structure was observed as Composition Shingle roofing over roof plywood supported by True 2x4 Rafter @ 24" OC. The roof is sloped at approximately 35 degrees and has a max rafter span of 10'0" between supports. Design Criteria: • 2015 International Building Code w/780 CMR • Basic Wind Speed Vult= 117 mph (Vasd = 91 mph), Exposure B • Ground Snow Load = 40 psf After review of the field observation report, the existing roof framing supporting the proposed solar panel layout has been determined to meet or exceed the requirements based on our structural capacity calculations in accordance with applicable building codes. Therefore, no structural upgrades are required. If you have any further questions on the above for mentioned, please do not hesitate to call. Sincerely, Sage Lopez, P.E. ,� `oA , k4Ss�110 Civil Engineer =�``� YC' V, Sunrun, Inc P Z 0 o civi _ v NO. 470 ► A STEP�� t• , I ss" ',tFA ►v 1,4 133 Technology Dr., Suite 100, Irvine, CA 92618 1 P 949.393.0993 1 sun run, Structural Calculations for the Robin Merrill Residence PV Installation Date: 9/5/2018 Job Address: 24 Walnut Street Northampton, MA, 01060 Job Number: 221R-024MERR 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 Structural Geometry, Live Load,Snow Load,Wind Load, & Dead Load 3 Roof(1) Framing Check 4 Roof Attachment Check,Seismic Check, &Scope of Work Engineering Calculations Summary Code: 2015 International Building Code w/780 CMR ASCE 7-10 Snow Load: S= 40 psf Live Load: LL= 20 psf Wind: Wind Speed Ult. (V)= 117 mph Exp. = B PV Dead Load: DPV= 3.0 psf Sincerely, �►6&&AAA444 4i Sage Lopez, P.E. , P Z Civil Engineer : o -- r rn e v NO. 474 ► Sunrun, Inc � o A GISTEP� 10 ,I'T fit/ 133 Technology Dr.,Suite 100, Irvine, CA 92618 1 P 949.383.0993 Engineer:SVL Date: 8/16/2018 Job: 221R-024MERR Address: 24 Walnut Street Northampton, MA,01060 2of4 Structrure Geometry: Mean Roof Height,hn = 22 ft Eave Height,he = 18 ft Buiding Length,L = 40 ft Building Width,B = 25 ft Module Area = 20 ftZ Roof Pitch,0 = 35 degrees Live Load: Roof Live Load,Lr = 20.00 psf Equation 4.8-1 Snow Load: Ground Snow Load,pg = 40 psf Fig.7-1 Snow Importance Factor,Is = 1 Table 1.5-1 Thermal Factor,Ct = 1.1 Table 7-3 Exposure Factor,Ce = 0.9 Table 7-2 Roof Slope Factor,C5 = 0.64 Figure 7-2c Flat Snow Load,Pt = 35.0 psf Equation 7.3-1 Sloped Roof Snow Loads,P: = 22.6 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 1.43 Unbalanced Width = 5.11 ft Fig 7-5 V = 19 pcf Equation 7.7-1 Unbalanced Snow Load = 48.32 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 Exposure Category = B Sec 26.7.3 Topographic Factor,Kzr = 1.00 Equation 26.8-1 Adjustment Factor,X = 1.00 Figure 30.5-1 Edge Zone,a = 3.00 ft Figure 30.5-1 Uplift(0.6W) Zone 1(psf) Zone 2(psf) Zone 3(psf) Pnet30 = -23.22 -27.56 -27.56 Figure 30.5-1 Pnet=0.6 x X x Kzr x Pnet30) _ -13.93 -16.54 -16.54 Equation 30.5-1 Downward(0.6W) Zone 1(psf) Zone 2(psf) Zone 3(psf) Pnet30 = 21.92 21.92 21.92 Figure 30.5-1 Pnet=0.6 x A x Kzr x Pnet30 = 13.15 13.15 13.15 Equation 30.5-1 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 True 2x4 Rafter @ 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 Total Wall DL= 12.0 psf 133 Technology Dr., Suite 100, Irvine, CA 92618 1 P 949.393.0993 Engineer:SVL Date:8/16/2018 Job: 221R-024MERR Address: 24 Walnut Street Northampton, MA,01060 3 of 4 Roof(1)Framing Check: Roof Framing = True 2x4 Rafter @ 24"OC Timber Species = Spruce-Pine-Fir#1/#2 Max Beam Span = 10.00 ft b = 2 in d = 4.00 in Moment of Inertia,Ix = 10.67 in Section Modulus,Sx = 5.33 in Bending Stress,Fb = 875 psi Elastic Modulus,Ennin = 510000 psi CD(Wind) CD(Snow) CLS CM Ct Wood Adjustment Factors: 1.60 1.15 1.15 1.00 1.00 CL CF Cfu Ci Cr 1.00 1.50 1.00 1.00 1.15 PV Tributary Width,Wpv = 1.63 ft PV Tributary Length,Lpv = 4.0 ft PV Tributary Area,At = 6.5 ftZ PV Dead Point Load,PD=Ppvx At = 16 Ib Roof Distributed Load,wDL = 11 plf Load Case: 0.6DL+0.6W (CD=1.6) Roof Zone = 1 Pup=Pnet x At+0.6 x PD x COS(8) = 81 Ib Mb(wind_up) = 253 lb-ft Fb'(wind)=Fb XCD XCLS XCM XG XCL XCF XCfu XCi XCr = 2777 psi Mallowable=Sx x Fb'(wind) = 1234 Ib-ft > 253 OK Load Case: DL+0.6W (CD=1.6) Pdown=Pnet x At+PD x COS(9) = 101 Ib Mb(wind_down) = 568 lb-ft Fb'(wind)=Fb XCD XCLS XCM XCt XCL XCF XCfu XCi XCr = 2777 psi Mallowable=Sx x Fb'(wind) = 1234 Ib-ft > 568 OK Load Case: DL+0.75(0.6W)+0.75S (CD=1.6) Roof Snow Distributed Load,wSL = 70 plf Psnow=Ps x At = 120 Ib Mb(wind_snow) = 856 Ib-ft Fb'(wind)=Fb XCD XCLS XCM XCt XCL XCF XCfu XCi XCr = 2777 psi Mallowable=Sx x Fb'(snow) = 1234 Ib-ft > 856 OK Load Case: DL+S (CD=1.15) Roof Snow Distributed Load,wSL = 70 plf Psnow=Ps At = 120 Ib Mb(snow) = 713 lb-ft Fb'(snow)=Fb XCD XCLS XCM XCt XCL XCF XCfu XCi XCr = 1996 psi Mallowable=Sx x Fb'(snow) = 887 Ib-ft > 713 OK 133 Technology Dr.,Suite 100, Irvine,CA 92618 P 949.393.0993 Engineer:SVL Date: 8/16/2018 Job: 221R-O24MERR Address: 24 Walnut Street Northampton, MA,01060 4of4 Rafter Attachments:0.6D+0.6W(Zone 2) Puplift=At x Pnet = 98 Ib Connector Uplift Capcity per SnapNRack Test Results = 340 Ib > 98 OK 5/16"Lag Screw Withdrawl Value = 205 Win Table 12.2A-NDS Lag Screw Penetration = 2.5 in Allowable Capacity with CD = 820 Ib > 98 OK Seismic Check: Existing Dead Load: Solar Dead Load: Arodexisting = 1000 ft, Wpanel = 42 Ib Wroofexisting = 7000 lb NUmpanel = 14 Awallexisting = 2340 ftZ Wpanel_tot = 588 Ib Wwallexisting = 28080 lb Wbos = 137 lb Wtotal = 35080 lb Warray = 725 lb rolncrease=tMotal+Warray)/Wtotal = 35805 *100%-100% = 2.07% ** 35080 **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 i SCOPE OF WORK GENERAL NOTES LEGEND AND ABBREVIATIONS TABLE OF CONTENTS PAGE# DESCRIPTION • SYSTEM SIZE: 490OW DC, 5000W AC • ALL WORK SHALL COMPLY WITH NEC 2017, IBC 2015, MUNICIPAL CODE, AND • MODULES: (14) LG ELECTRONICS: LG350Q1C-A5 ALL MANUFACTURERS' LISTINGS AND INSTALLATION INSTRUCTIONS. SE SERVICE ENTRANCE SOLAR MODULES PV 1.0 COVER SHEET • INVERTER(S): • PHOTOVOLTAIC SYSTEM WILL COMPLY WITH NEC 2017. RAILF I PV-2.0 SITE PLAN (1) SOLAREDGE TECHNOLOGIES: SE5000H-US WITH • ELECTRICAL SYSTEM GROUNDING WILL COMPLY WITH NEC 2017. o PV-3.0 LAYOUT REVENUE GRADE METERING • PHOTOVOLTAIC SYSTEM IS UNGROUNDED. NO CONDUCTORS ARE SOLIDLY MP MAIN PANEL • RACKING: SNAPNRACK SERIES 100 UL; FLASHED L FOOT. GROUNDED IN THE INVERTER. PV-4.0 ELECTRICAL SEE PEN D03. • MODULES CONFORM TO AND ARE LISTED UNDER UL 1703. • INVERTER CONFORMS TO AND IS LISTED UNDER UL 1741. F SUB PANEL STANDOFFS & PV-5.0 SIGNAGE • RACKING CONFORMS TO AND IS LISTED UNDER UL 2703. FOOTINGS • SNAPNRACK RACKING SYSTEMS, IN COMBINATION WITH TYPE I, OR TYPE IICHIMNEY MODULES, ARE CLASS A FIRE RATED. 1-01 PV LOAD CENTER • 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). SM SUNRUN METER • ARRAY DC CONDUCTORS ARE SIZED FOR DERATED CURRENT. FLUSH ATTIC VENT • 10.77 AMPS MODULE SHORT CIRCUIT CURRENT. • 16.82 AMPS DERATED SHORT CIRCUIT CURRENT [690.8(a) &690.8 (b)]. PM DEDICATED PV METER o PVC PIPE VENT INVERTER(S) WITH (s METAL PIPE VENT INV INTEGRATED DC DISCONNECT AND AFCI ® T-VENT AC AC DISCONNECT(S) 10l T SATELLITE DISH DC DC DISCONNECT(S) FIRE SETBACKS FEfli F7) COMBINER BOX E2 HARDSCAPE INTERIOR EQUIPMENT —PL— PROPERTY LINE LE J 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 888657.6527 FRM FRAMING FAX 805.528.9701 INT INTERIOR CUSTOMER RESIDENCE: LBW LOAD BEARING WALL ROBIN MERRILL MAG MAGNETIC 24 WALNUT STREET, MSP MAIN SERVICE PANEL NORTHAMPTON, MA, 01060 (N) NEW NTS NOT TO SCALE TEL. (617)642-7459 OC ON CENTER APN#: NHAM-000032A-000006-000001 PRE-FAB PRE-FABRICATED PROJECT NUMBER: PSF POUNDS PER SQUARE FOOT 221 R-024MERR PV PHOTOVOLTAIC TL TRANSFORMERLESS - TYP TYPICAL DESIGNER: -- V VOLTS TIM BRUCKNER 24 Walnut Street W WATTS SHEET REV NAME DATE COMMENTS COVER SHEET REV: A 28-08-2018 PAGE PV-1 .0 ARRAY TRUE MAG PV AREA SITE PLAN -SCALE =3/64" = 1'0" PITCH AZIM AZIM (SOFT) ® AR-01 35° 240° 254° 93 AR-02 35° 150° 164° 167.3 DETACHED STRUCTURE 0- < 0- GARAGE (E) FENCE 'r e• A M P �AC 'a SE AC INV sunrun (E) RESIDENCE #180120 4 734 FOREST STREET#400,MARLBOROUGH,MA 01752 •: `' PHONE 888.657 6527 •• FAX 805.528.9701 (N)ARRAY AR-01 CUSTOMER RESIDENCE: ROBIN MERRILL 24 WALNUT STREET, ���� (E) GATE NORTHAMPTON, MA, 01060 0- (N)ARRAY AR-02 �P TEL. (617)642-7459 APN#: NHAM-000032A-000006-000001 PROJECT NUMBER: 0- 221 R-024MERR DESIGNER: ---- TIM BRUCKNER SHEET SITE PLAN REV: A 28-08-2018 PAGE PV-2.0 DANGERWARNING: ! WARNING M AC OPERATING - - 7DO OTOVOLTAIC SYSTEM POWER • • OPERATING • COMBINER PANEL ELECTRICAL SHOCK HAZARD LABEL LOCATION: 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(13)(2)(3)(b), 690.31(E)(4),IFC 2012:605.11.1.4 ENERGIZED IN THE OPEN INVERTER 1 NEC 20D)(705.12(D)(2)(3)(c),NEC 2011: POSITION PHOTOVOLTAIC DC DISCONNECT LABEL LOCATION: RATED POWER-POINT CURRENT: 12.89 ADC INVERTER(S),AC DISCONNECT(S),AC COMBINER PANEL (IF APPLICABLE). POWER-POINT 380VDC PER CODE(S): NEC 2017:692.17 MAXIMUM SYSTEM VOLTAGE: 480VDC ADC L 7DO ,- - - - SOLAR PV SYSTEM EQUIPPED •- - -• 15LABEL LOCATION: R SOURCE OUTPUT WITH RAPID SHUTDOWN INVERTER(S),DC DISCONNECT(S). CONNECTION PER CODE(S):CEC 2016:690.53,NEC 2017:690.53,NEC 2014:690.53,NEC 2011:690.53 NOTRELOCATE THIS OVERCURRENT DEVICE TURN RAPID SHUTDOWN LABEL LOCATION: SWITCH TO THE "OFF" ADJACENT TO PV BREAKER(IF POSITION TO SHUTDOWN souae�ecTRic APPLICABLE). Pv eANe s PER CODE(S): NEC 2017:705.12(B)(2)(3)(b) CONDUCTORS OUTSIDE , •RAPID THE ARRAY. WN SWITCH CONDUCTORS WITHIN R I ARRAY REMAIN FOR • PV ENERGIZED IN SUNLIGHT. 7�D�!U7ALPC!IER SUPPLY: UTILITY GRIDOLAR ELECTRIC LABEL LOCATION: sunrun ON OR NO MORE THAN 1 M(3 FT)FROM THE SWITCH.YSTEM PER CODE(S):NEC 2017:690.56(C)(3) LABEL LOCATION: UTILITY SERVICE METER AND MAIN NOTES AND SPECIFICATIONS: SERVICE PANEL. •SIGNS AND LABELS SHALL MEET THE REQUIREMENTS OF THE NEC 2017 ARTICLE #180120 PER CODE(S):NEC 2017:705.12(13)(2)(3)(b), 110.21(B),UNLESS SPECIFIC INSTRUCTIONS ARE REQUIRED BY SECTION 690,OR NEC 2014:705.12(D)(3),NEC 2011: IF REQUESTED BY THE LOCAL AHJ. 734 FOREST STREET#400,MARLBOROUGH,MA01752 705.12(D)(4) o SIGNS AND LABELS SHALL ADEQUATELY WARN OF HAZARDS USING EFFECTIVE PHONE 888.657.6527 WORDS,COLORS AND SYMBOLS. FAX 805.528.9701 •LABELS SHALL BE PERMANENTLY AFFIXED TO THE EQUIPMENT OR WIRING CUSTOMER RESIDENCE: FRml VY METHOD AND SHALL NOT BE HAND WRITTEN,UNLESS PORTIONS OF LABELS ORROBIN MERRILL MARKINGS ARE VARIABLE,OR THAT COULD BE SUBJECT TO CHANGES,SHALLBE PERMITTED TO BE HAND WRITTEN AND SHALL BE LEGIBLE. 24 WALNUT STREET, S EQUIPMENT FED BY •LABEL SHALL BE OF SUFFICIENT DURABILITY TO WITHSTAND THE ENVIRONMENT NORTHAMPTON, MA, 01060 INVOLVED. TIPLE SOURCES. TOTAL •SIGNS AND LABELS SHALL COMPLY WITH ANSI Z535.4-2011,PRODUCT SAFETY TEL.(617)642-7459 RATING OF ALL SIGNS AND LABELS,UNLESS OTHERWISE SPECIFIED. •DO NOT COVER EXISTING MANUFACTURER LABELS. APN#: NHAM-000032A-000006-000001 OVERCURRENT DEVICES PROJECT NUMBER: EXCLUDING MAIN SUPPLY 221R-024MERR OVERCURRENT DEVICE SHALL DESIGNER: ---- NOT EXCEED AMPACITY OF TIM BRUCKNER 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(13)(2)(3)(b),NEC 2014:705.12(D)(2)(3)(c),NEC REV:A 28-08-2018 2011:705.12(D)(4) PAGE PV-5.0 ROOF TYPE MOUNTING DETAIL ROOF HEIGHT ROOF FRAME FRAME TYPE FRAME MAX FRAME OC ROOF EDGE MAX PEN MAX MOD. DESIGN CRITERIA EXPOSURE MATERIAL SIZE SPAN SPACING ZONE SPACING OVERHANG MODULES: AR-01 COMP SHINGLE FLASHED L FOOT. SEE PEN D03. 2 STORY ATTIC WOOD RAFTER 2 X 6 7'-8" 24" 3.3' 4'-0" 2'-4" LG ELECTRONICS: LG350QlC-A5 AR-02 COMP SHINGLE FLASHED L FOOT. SEE PEN D03. 2 STORY ATTIC WOOD RAFTER 2 X 4 Y-0.1 24" 3.3' 4'-0" 2'-4" MODULE DIMS: 66.93"x 40"x 1.57"(40mm) D1 -AR-01 -SCALE: 1/4"= 1'-0" MODULE CLAMPS: PITCH: 35° Portrait: 7.9"- 15.7" AZIM: 240° Landscape:0"-4.7" MAX DISTRIBUTED LOAD: 3 PSF ® SNOW LOAD:40 PSF WIND SPEED: 117 MPH 3-SEC GUST. 6 _O LAG SCREWS: 4'TYP— 5/16"x4.0":2.5" MIN EMBEDMENT NOTE: INSTALLERS TO VERIFY RAFTER A&- SIZE, SPACING AND SLOPED 6'-9SPA ANY NDISCREPAS,AND NCIES BEFORE PROCEEDING. O— -O PENETRATION SPACING: FULLY STAGGERED i D2 -AR-02 -SCALE: 1/4" = 1'-0" PITCH: 35° AZIM: 150° ® sunrun #180120 6"- 734 4'TYP FOREST n400,MARLBOROUGH,MA 01752 PHONE886576527 FAX 805.528.9701 CUSTOMER RESIDENCE: 6,_9„ —O— ---o -e- --o ROBIN MERRILL E)- e- -e 24 WALNUT STREET, NORTHAMPTON, MA, 01060 TEL. (617)642-7459 —8 —� APN#: NHAM-000032A-000006-000001 PROJECT NUMBER: 2'-10" 221 R-024MERR DESIGNER: ---- TIM BRUCKNER SHEET - T-6" 22'-5" 5'-7" 4'-5" LAYOUT REV:A 28-08-2018 PAGE PV-3.0 120/240 VAC SINGLE PHASE SERVICE OMETER#: M NATIONAL GRID 25147696 UTILITY GRID SUPPLY SIDE TAP 4 1 EXISTING 100A (N) LOCKABLE SOLAREDGE TECHNOLOGIES: C MAIN BREAKER BLADE TYPE (N) LOCKABLE SE5000H-US WITH REVENUE FUSED AC BLADE TYPE GRADE METERING 1 DISCONNECT AC DISCONNECT 5000 WATT INVERTER JUNCTION BOX PV MODULES 3 3 2 OR EQUIVALENT 1 LG ELECTRONICS: LG350QlC-A5 EXISTING / (14) MODULES 150A o�� owe—o `� --- ✓. o + (�// OPTIMIZERS WIRED IN: MAIN — `Y (1) SERIES OF (14)OPTIMIZERS FACILITY PANEL 30A FUSES LOADS FACILITY —GROUND SQUARE D SQUARE D LOAD RATED DC DISCONNECT D222NRB DU221RB WITH AFCI, RAPID SHUTDOWN 3R, 60A 3R, 30A,2P COMPLIANT SOLAREDGE POWER OPTIMIZERS 120/240VAC 120/240VAC P370 CONDUIT SCHEDULE NOTES TO INSTALLER: # CONDUIT CONDUCTOR NEUTRAL GROUND 1. 14 VDC EXPECTED OPEN CIRCUIT STRING VOLTAGE. 2. CONNECT SYSTEM VIA INSULATION PIERCING ON SUPPLY SIDE OF MAIN 1 NONE (2) 10 AWG PV WIRE NONE (1)6 AWG BARE COPPER BREAKER IN MAIN PANEL ENCLOSURE. CONDUCTORS ARE FIELD INSTALLED. 2 3/4" EMT OR EQUIV. (2) 10 AWG THHN/THWN-2 NONE (1) 8 AWG THHN/THWN-2 sunrun 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,MAO 1752 PHONE 888.657.6527 FAX 805.528.9701 CUSTOMER RESIDENCE: ROBIN MERRILL 24 WALNUT STREET, NORTHAMPTON, MA, 01060 MODULE CHARACTERISTICS TEL. (617)642-7459 P370 OPTIMIZER CHARACTERISTICS: LG ELECTRONICS: LG350QlC-A5: 350 W MIN INPUT VOLTAGE: 8 VDC APN#: NHAM-000032A-000006-000001 OPEN CIRCUIT VOLTAGE: 42.7 V MAX INPUT VOLTAGE: 60 VDC PROJECT NUMBER: MAX POWER VOLTAGE: 36.1 V MAX INPUT ISC: 11 ADC 221R-024MERR SHORT CIRCUIT CURRENT: 10.77 A MAX OUTPUT CURRENT: 15 ADC DESIGNER: ---- SYSTEM CHARACTERISTICS -INVERTER 1 TIM BRUCKNER SYSTEM SIZE: 4900 W SHEET SYSTEM OPEN CIRCUIT VOLTAGE: 14 V ELECTRICAL SYSTEM OPERATING VOLTAGE: 380 V MAX ALLOWABLE DC VOLTAGE: 480 V REV: A 28-08-2018 SYSTEM OPERATING CURRENT: 12.89 A SYSTEM SHORT CIRCUIT CURRENT: 15A PAGE PV-4.0