24 BARNES CIR - BPA-16-1225 REJEC. SOLAR - SEE OTHER LIz { � 5icj
441- NNW
7016 OCT
8 A 9f 5h
LD y� The Commonwealth of Massachusetts
(V }a Board of Building Regulations and Standards CITY OF
al Massachusetts Sz a Building Code,780 CMR SALBM
I n� Revised Mar 2011
Building Permit Applicatio Cons ct, Repair, Renovate Or Demolish a
i One-or w ily Dwelling
_^ This S ctioti For Official Use Only
Building Permit Number: ate Applied:
Building Official(Print Name) Si Lure Date
SECTION 1:SITE,[NFONIATION
1.1 Pro erty Address• 1.2 ss -o Map&Parcel Numbers
-L+ Y-n4, ?& cir
1.1 a Is this an accepted street?yes no Map Num r Parcel Number
1.3 Zoning Information: 1.4 Property D ens is:
Zoning District Proposed Use Lot Area(sq ft) Frontage(R)
1.5 Building Setbacks(ft)
Front Yard Side Yards Rear Yard
Required Provided Required Provided Re ire Provided
1.6 Water Supply:(M.G.L c.40,§54) 1.7 Flood Zone Information: 1.8 Sewage 11
r osal stem:
Public❑ Private❑ Zone: _ Outside Flood Zone? Municipal❑ On site disposal system ❑
Check if yes❑
SECTION 2: PROPERTY OWNERSHIP'
45N,
.1 ownGoflnetly` Salem MA 01979
ame(Prinntt) City,State,ZIP
24 barnes cir 9782994534 Robensu@gmail.com
o.and Street 'Telephone F,mail Address
SECTION 3: DESCRIPTION OF PROPOSED WORK'(check all that apply)
ew Constructioe'Cl- Existing Building❑ Owner-Occupied ❑ 1 Repairs(s) ❑ Alteration(s) ❑ Addition❑
Demolition Cl I Accessory Bldg.❑ Number of Units Other ❑ Specify:
Q UG Brief es rip[ionofProposed Work':
SECTION 4: ESTIMATED CONSTRUCTION CO
Item Estimated Costs: Official Use Only
(Labor and Materials)
1.Building $t I:Z (6 1. Building Permit Fee:$A=Indicate how fee is determined:
2.Electrical $rj ❑Standard City/Town Application Fee
❑Total Project Cost'(Item 6)x multiplier x
3.Plumbing $ 2. Other Fees: $
4.Mechanical (HVAC) $ List:
S.Mechanical (Fire $
Su ression) Total All Fees: $
C) Check No._Check Amount: Cash Amount:_
6.Total Project Cost: $�!L'�" 3• 11 paid in Full 0 Outstanding Balance Due:
arLO' CONSTRucriON LLC .I f
_JENNINGS CIR
MA.01960-3568
„ we appreciate you-.,
w
ry
CnUL.0 NOT- Gg'` VIViN'('
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SECTION 5: CONSTRUCTION SERVICES
5.11 Construction SuSpeevisorLicense(CSL) Iba0 �
U �j1k/�'1P'P�1(1`C_ License fSNumber Expiration(date
Na9L Ifu1ien U- U
L List CSL Type(see below)
No.a tn:et Type Description
o n y o t � �,6�I I U Unrestricted2 Family
(Buildings u to Dwelling
cu.ft.)
�l-)/ � `t R Restricted 1&2 Famil Uwcllin
Cityrlown,State,Zl P M Masonry
RC Roofing Covering
WS Window and Siding
2r'Cr SF Solid Fuel Burning Appliances
QVw0@oC ;,g%gtsC'V'f (Oh I Insulation
Telephone U Email address D Demolition
5.2 Registered Home�I�mpro emee''nt Contractor(HIC) ?/t I fj
V-Int � ,r HIC R/eeggistration Number Expiration Date
HIC Company Nan r I IIC R istrant Name � ,
No.and Street, o rI COY�4 �l�
�o(A to ' )((L �1)RM 122020 ,C Email address
City/Town, Statute,ZIP _h(J, IU� Telephone
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 ..........C' No...........❑
SECTION 7a:OWNER AUTHORIZATION TO BE COMPLETED WHEN
OWNER'S AGENT OR CONTRACTOR APPLIES FOR BUILDING PERMIT
I,as Owner of the subject property,hereby authorize y'y,� `/
i ,\o h,Y.a
to act on my a a ers relative to work authorized by this building permit application.
10/19/2016
Print Own ame(Electronic Signature) Date
SECTION 7b:OW NERt 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 this application is true and accurate to the best of my knowledge and understanding.
U G eene J'34 ` �otz81 ►(o
cr Print 0 s�or Authorize Agent' 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 wvvw.mass.gov/dam
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"
�11��/ ivi U 11. sJ o l a r 1800 W Ashton Blvd.
Structural Group Lehi, UT 84043
Jon P. Ward, SE, PE Clint C. Karren, PE
Structural Engineering Manager Structural Engineerng Manager
ion.ward(@)vivintsolar.com ciint.karrenC vivintsolar.com
October 27, 2016
Mr. Dan Rock, Project Manager
Vivint Solar
1800 W Ashton Blvd.
Lehi, UT 84043
Re: Structural Engineering Services
Ely Residence
24 Barnes Cir, Salem, MA
S-5292768;2.915 kW; MA-01
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 representative from our office under my supervision
identifying specific site information including size and spacing of members 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 the following:
• Roof Section 1: Roof section is composed of 2x10 dimensional lumber at 16"on center and a single
layer of roofing. The attic space is unfinished and photos indicate that there was free access to
visually inspect the size and condition of the roof members.
All wood material utilized for the roof system is assumed to be Spruce-Pine-Fir #2 or better with standard
construction components. The existing roofing material consists of composite shingle.
Stability Evaluation:
A. Wind Uplift Loading
1. Calculations for uplift are based on ASCE/SEI 7-10 Minimum Design Loads for Buildings and other
Structures, a wind speed of 100 mph based on Exposure Category B and 23 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.
Page l of bi int. solar
B. Loading Criteria
8 PSF = Dead Load (roofing/framing) 40 PSF =Ground Snow Load
3 PSF = Dead Load (solar panels/mounting hardware)
Total Dead Load= 11 PSF
The above values are within acceptable limits of recognized industry standards for similar structures and in
accordance with the 2009 International Residential Code with Massachusetts Amendments. Analysis performed on
the existing roof structure utilizing the above loading criteria indicates that the existing members 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 (www.ecolibriumsolar.com). If during
solar panel installation, the roof framing members appear unstable or deflect non-uniformly, our
office should be notified before proceeding with the installation.
2. The solar panels are 1 1/2" thick and mounted 4 1/2" off the roof for a total height off the existing roof
of 6". At no time will the panels be mounted higher than 6" above the existing plane of the roof.
3. Maximum allowable pullout per lag screw is 205 Ibs/inch of penetration as identified in the National
Design Specifications (NDS) of timber construction specifications for Spruce-Pine-Fir assumed.
Based on our evaluation, the pullout value, utilizing a penetration depth of 2 1/2", is less than the
maximum allowable per connection and therefore is adequate.
4. Roof Section 1: Considering the roof slopes, the size, spacing, condition of the roof, the panel
supports shall be placed at and attached no greater than every fourth roof member as panels are
installed perpendicular across members and no greater than the panel length when installed
parallel to the members (portrait). No panel supports spacing shall be greater than four (4) spaces
or 64"o/c, whichever is less.
5. Panel support connections shall be staggered to distribute load to adjacent members.
Based on the above evaluation, with appropriate panel anchors being utilized the roof system will adequately
support the additional loading imposed by the solar panels. This evaluation is in conformance with the 2009
International Residential Code with Massachusetts Amendments, current industry standards and practice, and the
information supplied to us at the time of this report.
Should you have any questions regarding the above or if you require further information do not hesitate to contact
me.
OF
FAAEI
� ,{
Regards, dos
N P G
Jon P. Ward, SE, PE AR
MA License No. 52584 " No. 525
Q �
SSIO ALE��'
Page 2 of vivint• so Ia1
EcolibriumSolar
Layout
c-
77
Skirt
c Coupling
End Coupling Note: If the total width of a continuous array exceeds 35 ft, break
Clamp array to allow for thermal expansion and contraction. See
End Clamp Installation Guide for details.
® North Row Extension Warning: PV Modules may need to be shifted with respect to roof
0 Row-to-Row Bonding Clip/Bonding Jumper trusses to comply with maximum allowable overhang.
PV
2.915 kW SYSTEM SIZE: 24 Barnes Cir, Salem MA 01970
N\ PV INTERCONNECTION POINT, INVERTER,
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MODULE
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Photovoltaic System Conduit Conductor Schedule(ALL CONDUCTORS MUST BE COPPER)
_ DC System Size HIS Tag If Description Wlre Gauge of of Conductors/color Conduit Type Conduit Size u,
t —,z --] AC Sysem sire 3800 IPVWTNIe 10 AWG 2(V+,V( N Air N/A-Free Air o
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C32A 2008 to
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DC Safety Switch Conductor Calculations
Rated for max operating condition of inverter PV Module Rating @STC -Wire gauge calculated from NEC code 310.15(B)(16)with ambient temperature calculations so
NEC 690.35 compliant Module Make/Model JKM265PP-60 from NEC 310.1S(2)(a). z m^ e
opens all ungrounded conductors v u .m.
Max Power-Point Current(Imp) 8.44 Amps For"On Roof"conductors we use the 901 column ampaciry,0.5"-3.5"off-[he-roof temperature - vn a m
Optimizer Solar Edge P300 Max Power-Paint Voltage(Vmp) 31.4 Volts adjustment from 310.15(B)(3)(c),and raceway fill adjustments from 310.15(B)(16).
Open-Circuit Voltage(Voc) 38.6 - Volts For"Off RaoP'conductors we use the 75-C column ampaciry,or the 90-C column ampaciry with ' m 'c
DC Input Power 300 Mm
the relevant ambient temperature and raceway fill adjustments,whichever is less. vu uo
Short CircuitCurrent(Ise) 9.03 Amps n ¢
DC Max Input Voltage 48 The rating of the conductor after adjustments MUST be greater than,or equal to,the continuous
DC Max Input Current 12.5 Ma x5sonsFuse(OCPD) 15 Amps duty uprated Output current.
DC Max Output Current 15 Nom.Maximum Power a[STC(Pmax) 265 Watts Calculation Example Wire Rating(91 x Ambient Temperature Adjustment x Conduit Fill
Max String Rating 5250 Maximum System Voltage 1000 V DC(I EC) Adjustment>=Continuous Duty Output Current
Inverter Make/Model SE380 you Temperature Coefficient -0.3 WE (On Roof,Tag 2):10 gauge wire rated for 40 A, 40Ax 0.76 x 1(2 Conductors)=30.4 A>=18.75
CEC Efficiency 98 A
AC Operating Voltage 240 PV Module Rating @ STC (Off Roof,Tag 3):SO gauge wire rated for 35 A, 35 A>=19.79 A Ilk-
Continuous Max Output Current 16 Module Make/Model Trips Solar TSM-255 PD05.08 (a
DC Maximum Input Current 13 Max Power-Point Current(imp) 8,37 Amps
Short Cl rcui[Current ll.5 Max Power-Point Volta Wimp) 30.5 Volts 0
Max Out u[Faul[Current 1).5 Open Voltage(Voc) 38.1 Volts
Short-Circuit Current(Isc) 8.88 Amps
Max Series FdsV(OCPD) 15 Amps =
Nom.Maximum Power at STC(Pmax) 255 Watts
Maximum System Voltage 1000 V(IEC)/600 V(UL))
Voc Temperature Coefficient -0.32 %/C
Inverter Make/Model M215-60-2LL-522-ZC
Max Dc Volt Rating OS Volts '
Max Power at 40C 215 Watts AC Output Current According to NEC 690.B(B)(1) i-183 Amps
Nominal AC Voltage 240 Volts Nominal AC Voltage 240 Volts ark
Max AC Cwren[ 0.9 Amps THIS PANEL IS FED BY MULTIPLE SOURCES(UTILITY AND SOLAR) CICPD Calculations ?
Max DEED Rating 20 Amps ROOFTOP CONDUCTORAMPACITIES DESIGNED INCOMPLIANCE so
Max Number of Panels/Circuit 12 WITH NEC6908,TABLES 310.15(B)(2)(a),310.15(B)(3)(a), Breakers slated according to continuous dulyoulpulcurrent.PV circuit Terminal current based
,Short Circuit Current . 1.05 Amps 310.15(B)(3)(c),310.15(B)(16),CHAPTER 9 TABLE 4,5,&9. off invader continuous output current X(1.25(NEC code 210.19(A)(1)(a)). go m
LOCATION SPECIFIC TEMPERATURE OBTAINED FROM ASHRAE 2013 v, rc
DATA TABLES. bmrter l:SE3800 A-L1S-LI Max Output=15.83 A x 1.25(NEC code 210.19(A)(1)(a)) I
=19.79A<20 A(01
ASHRAE 2013- system output current:w/contnuous duty=19.79<20A(System Ol z w
Highest Monthly 2%DB Design Temp:32.5 Celsius ICEw w as
Lowest Min.Mean Extreme DB:-23.9 Celsius r r J
Other Notes '�^
SHEET
•ALL INTERIOR RACEWAYS CARRYING DC CURRENT SHALL BE METALLIC NAME:
•All ampaciry calculations are made in compliance with NEC 220.5(8)
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