5 GREENWAY RD - BUILDING INSPECTION C_IV-
lac. LI
<� The Commonwealth of Massachusetts CITY =
Board of Building Regulations and Standards 4�' ca .
Massachusetts State BuildingCode,780 CMR SAL
EnTr 'v
��'� �✓ Revised Mnale011
j Building Permit Application To Construct,Repair, Renovate Or Demolish a p
One-or Two-Family Dwelling 1 h.
This Section For Official Use Oeft
nly
\C� Building Permit Number: Date Applied: D
N
Building Official(Print Name) Signature
SECTION 1: SITE INFORMATION
1.1 Property Address: 1.2 Assessors Map&Parcel Numbers
�� ld 1 rn�
L la Is this an accepted street?yes X no Map NumN—r Parcel Number
1.3 Zoning Information: 1.4 Property Dimensions:
i
(Zoning District Proposed Use Lot Area(sq R) Frontage(ft)
11.5 Building Setbacks(R)
Front Yard Side Yards Rear Yard
Required Provided Required Provided Required Provided
1.7 Flood Zone Information: 1.8 Sewage Disposal System:
1.6 Water Supply:(M.G.L c.40,§54)
Public❑ Private❑ Zone: _ Outside Flood Zone?
Check if yes❑ Municipal❑ On site disposal system ❑
SECTION 2: PROPERTY OWNERSHIP'
2.1 wner of Record:
'v�P �ies CJrty Sale-m MA niQO�-
Name(Print) City,State,ZIP
5 COrP4Y�is�Co ) ra F108, �-4645
No.and Street ITelephone Email Address
,�. SECTION 3:DESCRIPTION OF PROPOSED WORK'(check all that apply)
New Construction 0( Existing Building❑ Owner-Occupied ❑ Repairs(s) ❑ Alteration(s) ❑ 1 Addition ❑
Demolition ❑ Accessory Bldg. ❑ Number of Units_ I Other ❑ Specify:
Brief Description of Proposed Work': 1 p
ho}UV }0.1G SOICLY—
SECTION 4:ESTIMATED CONSTRUCTION COSTS
Item Estimated Costs:
(Labor and Materials) Official Use Only
1.Building $ 1. Building Permit Fee:$ Indicate how fee is determined:
2.Electrical $ ❑ Standard City/Town Application Fee
❑Total Project Cost'(Item 6)x multiplier x
3.Plumbing $ 2. Other Fees: $
4. Mechanical (HVAC) $ List:
5.Mechanical (Fire $
Su ression) Total All Fees: $
Check No. Check Amount: Cash Amount:
6. Total Project Cost: S 0 Paid in Full 0 Outstanding Balance Due:
SECTION 5: CONSTRUCTION SERVICES
5.11-Construction Supervisor License(CSL) o�S�4
3c1rne_5 �)Ae_rfVLa_+'1 License Number Expiration ate
Name of CSL Holder
S1 �kp�N Si- List CSL Type(see below) U
No.and Street 1 Type Description
6 I A O I g O I U Unrestricted(Buildings u [0 35,000 cu.ft.
�"l _l W R
ity/To S Restricted 1&2 FamilyDwelling
Cwn, AS ZIP M Maso
(/ RC Roofin Coverin
WS Window and Siding
.c SF Solid Fuel Bunting Appliances
V�Ultp I Insulation
Tele hone Email address C.Ow1 D Demolition
5.2 Registered Home Improvement Contractor(HIC)
Vili/I t SotarDevelo�2 - LAC_
HIC Registration Number E pva on Dale
HIC Cgn any Name or HIC Registrant Name
+q3 N. �oo W w\-aSo LfLr cb v w to+so r
No,and Street Email address (_Dyvt
4OV0 ur '64(0ot+ f$1305301e5
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 ..........A No...........❑
SECTION 7a:OWNER AUTHORIZATION TO BE COMPLETED WHEN
OWNER'S AGENT OR CONTRACTOR APPLIES FOR BUILDING PERMIT
1,as Owner of the subject property,hereby authorize UI V 1✓t SlD far
to act on my behalf,in all matters relative to work authorized by this building permit application.
u,tia I 3/.3//y
PrintOwner's Name( r; c Signature) Date
4containedinth'
TION 7b: OWNEW OR AUTHORIZED AGENT DECLARATION
lo:istrue
eby attest under the pains and penalties of perjury that all of the information
i and accurate to the best ofmy knowledge and understanding.
v nr-Name(Electronic Signature) Date
NOTES:
I. An Owner who obtains a building permit to do his/her own work,or an owner who hires an unregistered contractor
(not registered in the Home Improvement Contractor(HIC)Program),will not have access to the arbitration
program or guaranty fund under M.G.L.c. 142A.Other important information on the HIC Program can be found at
www:mass.eov/oca Information on the Construction Supervisor License can be found at www.mass.gov/dl)s
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"
I,
�`�a CERTIFICATE OF LIABILITY INSURANCE °;/01/2013 "Y"
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 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 endorsemengs).
PRODUCER CONTACT
MARSH USA INC. NAME:
122517TH STREET,SUITE 1300 PHONE FAX
Alc oINC.Not:
DENVER,CO 80202-5534 E-MAIL
Attn:Denmr.certrequest@marsh.com,Fax:212.948.4381 ADDRESS:
INSURE S AFFORDING COVERAGE NAIL#
462738-STND-GAWUE-13-14 INSURER A,Evanston insurance Company 35378
INSURED INSURER B:National Union Fire Insurance Go of PA
Vivint Solar,Inc.
4931 N 300 W INSURER C:New Hampshire Insurance Company 23841
Prove,UT 84604
INSURER D
INSURER E:
INSURER F:
COVERAGES CERTIFICATE NUMBER: SEA-G02368030-06 REVISION NUMBER:0
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 ADOL S OR
POLICY EFF PODCY EXP
LTR TYPE OF INSURANCE POLICY NUMSER MMID MMIDDIYYYY LIMITS
A GENERAL LIABILITY 13PKGWE00274 11/01/2013 11/01/2014 EACH OCCURRENCE $ 1,000,000
X -COMMERCIAL GENERAL LIABILITY DAMA E 50,000
PREMISES Eaoccunence $
CLAIMS-MADE M OCCUR MEDEXP(Anyoneperson) $ 5,000
PERSONAL a ADV INJURY $ 1,000,000
GENERALAGGREGATE g 2,000,000
GEN'L AGGREGATE LI MIT APPLIES PER PRODUCTS-COMP/OP AGG $ 2,000,000
X POLICY PR0. LOC $
B AUTOMOBILE LIABILITY 9701087 - 11101/2013 11/01/2014 COMBINED SINGLE LIMIT Ea accide 1,000,000
nt
B X ANY AUiO 9701088 11101/2013 11N112014 BODILY INJURY(Per person) $
AUTOS SCHEDULED BODILY INJURY Per accident $
AUTOS AUTOS ( )
X HIREDAUTOS X NON-OWNED PROPERTYDAMAGE $
AUTOS Per accident
$
A UMBRELLA LIAB X OCCUR 13EFXWE00088 11MI/2013 11/01/2014 EACH OCCURRENCE $ 10,000,000
X EXCESS LAB CLAIMS-MADE AGGREGATE $ 10,000,000
DEC) RETENTION$ $
C WORKERS COMPENSATION 029342334; 029342335 11/01/2013 11101/2014 X WCSTATu- oTH-
AND EMPLOYERS'LIABILITYLIM
G ANYPROPRIEiOR/PARTNER/EXECUTIVE YIN 029342336; 029342337 11N1Y2013 11101I2014 1,000,000
OFFICERMEMBER EXCLUDED? NIA E.L.EACH ACCIDENT $
C (Mandatary in NH) 029342338 11101/2013 11/01/2014 E.L.DISEASE-EA EMPLOYE $ 1;000,000
It yes,describe under
DESCRIPTION OF OPERATIONS belmv E.L.DISEASE-POLICY LIMIT $ 1,000,000
A Errors B Omissions& 13PKGW00029 11/0112013 11M112014 LIMIT 1,000,000
Contractors Pollution DEDUCTIBLE 5,000
DESCRIPTION OF OPERATIONS I LOCATIONS 1 VEHICLES (A#ach ACORD 101,Addhioml Rem ft Schedule,B more apace u rsqulmd)
The Certificate Holder and others as defined in the written agreement are included as additional insured where required by widen contract with respect to General Liability.This insurance is primary and non.
ninbutory over any existing insurance and limited to liability arising out of the operations of the named insured and where required by written contract.Waiver of subrogation is applicable where required by wnifen
ntract with respect to Goneral Liability and Workers Compensation.
CERTIFICATE HOLDER CANCELLATION
City of Salem SHOULD ANY OF THE ABOVE DESCRIBED POLICIES BE CANCELLED BEFORE
93 Washington Street THE EXPIRATION DATE THEREOF, NOTICE WILL BE DELIVERED IN
Salem,MA 01970 ACCORDANCE WITH THE POLICY PROVISIONS.
AUTHORRED REPRESENTATIVE
of Marsh USA Inc.
Kathleen M.Parsloe .f�X/lteat,hr. fQvleo
01988.2010 ACORD CORPORATION. All rights reserved.
ACORD 25(2010/05) The ACORD name and logo are registered marks of ACORD
d 1 Coaaaress Street, Suite 100
Boston, MA 02114-2017
www.mass.govIdia
`Yorkers' Compensation Insurance Affidavit: Builders/Contractors/Electricians/Plumbers
Applicant Inaformatioan Please Print Legibly
Marne (Business/Organization/Individual):
Vivint Solar Developer, LLC
Address:4931 North 300 West
City/State/Zip:Provo, UT 84604 Phone#:801-704-9389
Are you an employer? Check the appropriate box: Type of project(required):
1.F0 I am a employer with 10 4. ❑ I am a general contractor and I
employees (full and/or part-time).*
have hired the sub-contractors 6. Now construction
2.❑ I am a sole proprietor or partner- listed on the attached sheet. 7. ❑ Remodeling
shipand have no employees These sub-contractors have $
❑ Demolition
working for me in any capacity. employees and have workers'
cam insurance.t 9. El Building addition
[No workers' comp. insurance p
required.] 5. ❑ We are a corporation and its ME] Electrical repairs or additions
3.❑ I am a homeowner doing all work officers have exercised their I LEI Plumbing repairs or additions
myself. [No workers' comp. right of exemption per MGL 12.❑ Roof repairs
insurance required.] t c. 152, §1(4), and we have no
employees. [No workers' 13.0 Other
comp. insurance required.]
*Any applicant that checks box k k must also fill out the section below showing their workers' compensation policy information.
r 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.
1 am an employer that is providing workers'compensation insurance for my employees. Below is the policy and job site
information.
Insurance Company Name: New Hampshire Insurance Comany
Policy# or Self-ins. Lic. 4:029342228 Expiration Date.,11-01-14
Job Site Address: 5 GbV\- .e.Y)WCLQA V-04 - City/State/Zip: so�k t l
Attach a copy of the workers' compensation policy declaration page(showing the policy number and expiration date).
Failure to secure coverage as required trader Section 25A of MGL c. 152 can lead to the imposition of criminal penalties of a
fine up to $1,500.00 and/or one-year imprisonment, as well as civil penalties in the form of STOP WORK ORDER and a fine
of up to $250.00 a day against the violator. Be advised that a copy of this statement may be forwarded to the Office of
Investigations of the DIA for insurance coverage verification.
I do hereby certi undgr.tke pal and penalties of perjury that the information provided above is true and correct.
Suture: i � .j � � —� Date �3 wl M -
Phone#: 801-704-9389
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 S. (Plumbing Inspector
6. Other
Contact Person: Phone#:
Office of Consumer Affairs tind Business Regulation
10 Park Plaza - Suite 5170
Boston, Massachusetts 02116
Home Improvement Contractor Registration
Registration: 170848
Type: Supplement Card
VIVINT SOLAR DEVELOPER LLC. Expiration: 1/5/2016
JAMES SHERMAN
4931 NORTH 300 WEST
PROVO, LIT 84604
Update Address and return card.Mark reason for change.
scn 1 0 2OM-05/11 Address ❑ Renewal ❑ Employment Lost Card
C;!�L�omrmzoawie�i "c� �
VffiExpiration:
ce of Consumer Affairs&Business Regulation License or registration valid for individul use only
ME IMPROVEMENT CONTRACTOR before the expiration date. df found return to:
Office of Consumer Affairs and Business Regulation
egistration: 170848 Type: 10 Park Plaza-Suite 5170
1/5/2016 Supplement Card Boston,MA 02116
VIVINT SOLAR DEVELOPER LLC.
JAMES SHERMAN r
4931 NORTH 300 WEST g � '
PROVO, UT 84604 Undersecretary Not valid without signature --
11M Massachusetts -Department of Public Safety
1
Board of Building Regulations and Standards
Construction Superiisor
License: CS-045254
JAMES R SBIRMA-N C
81 MAIN ST - t __
SAUGUS MA 01906
y .
Expiration
Commissioner 08/28/2014
a
2781 Fries Mill Road,Williamstown,NJ 08094
Tel: 856.770.4473; rdcipolla@verizon.net
Vivint Solar February 28, 2014
24 Normac Road
Woburn MA, 01801
Attn: Mr. Paul Greene, Operations Manager
Re: Structural Assessment Report for Roof Mounted Photovoltaic (Solar) Panel
Installations—Day Residence, 5 Greenway Road, Salem, MA
AR#3552306
Dear Paul:
We are providing you with this structural assessment report of Vivint Solar's photovoltaic (solar)
roof installations to be completed at the above referenced dwelling. The assessment criteria are
based upon Vivint's recent dwelling site visit 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 for our assessment summary.
The dwelling is timber framed of older construction age with an"A"framed main roof, 61-2"+/-
high (estim.), built from nominal 2" x 6" dimensional lumber joists at 24" o/c, typical. There is
an attached lower"A" framed rear roof assumed to be similarly framed. The maximum roof joist
span length is 13' — 6" +/- excluding reductions for collar ties supports. Two layers of roof
shingles are assumed. Materials are assumed as minimum Hem-Fir#2 grade, conservatively(low
allowable stresses), with standard construction components (better grade lumber may have been .
used). 1" x 6" collar ties are installed at 24" +/- o/c spacing on the joists, set 30" +/- below the
top of the 2" x 8" ridge beam in the main "A" roofs'/attic's full length, in panel installations
areas, for adequate roof reinforcing. There are no other roof joists or ridge beam supports, the
full length of the roof, down to framing below. The main attic and roof framing were mostly
accessible by access panels at the site inspection and evaluation, so a complete assessment and
confirmation of framing spacing, sizes and condition was able to be performed for this roof. The
rear roof received a partial assessment
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 and checked for their capacity of new loadings.
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.
Mr. Paul Greene February 28, 2014 Page 2
2. Given the dwelling's roof construction and condition,the existing roof joists' load
carrying capacity will be able to carry the added dead and redistributed live loads from
the new solar panels if installed correctly. The dwelling's roof members will also
redistribute the snow live loads,and additional solar panels dead load to the adjacent
framing members. These additional loads should not produce stresses beyond the
allowable stress range for roof framing members assumed as Hem-Fir#2 materials.
Considering the higher roof slopes, array sizes; full/limited access to confirm roof
joists' size, spacing, condition; and collar ties, the panel supports shall be set/attached
to every second joist for lateral installations over joists. No panel supports ap cing
shall be rg eater than two (2) roof ioist spaces, or 48"o/c,to be shown in the PV 2.0
Roof Layout plan(s). Note—Layout Array Drawings#1 and 93 submitted for review,
show this maximum panel support spacing, and need no spacing revisions. Layout
Drawing#2 shows every three joists, 72"o/c maximum panel support spacing, and
needs to be revised to the above spacing. The panel supports shall be installed in
staggered patterns to ensure proper load distribution,and with no more than three
supports placed on any single roof joist except at ends of layouts. After revising,
these layouts can be used for permit submittals and installations.
All panels shall be installed as shown on the layout plans with 48"o/c maximum
support spacing, or two joist spaces and staggered, to be shown in the final revised
PV 2.0 Roof Layout plan(s), as stated above. Framing member sizes, spacing and
condition must be properly verified by Vivint's installers, prior to any installations.
Send any differing information to this engineer for review and approval, prior to
continuing with any installations.
3. This assessment meets current Massachusetts Building Code, 8t'Edition—Residential
—Amendments to International Residential Code, (IRC), 2009 Edition, for one and
two family dwellings.
B. SOLAR PANEL ATTACHMENT TO ROOF STRUCTURE:
1. 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. Vivint should notify the homeowners that long term build-up of accumulated snow in
the event of extreme snowfall conditions, may produce some roof deflections.
These deflections will be temporary in nature and will not affect the roof's structural
integrity. The solar panels do not need to be cleared of such accumulated snow.
C. WIND UPLIFT LOAD:
1. Refer to attached ZEP calculation sheet for ASCE/SE17-10 Minimum Design Loads _
i
Mr. Paul Greene February 28 2014 Page 3
For Buildings and Other Structures, for wind speed at this location of 100 miles per
hour* for Exposure Category `B", and 29 degree roof slopes on the dwelling's roof
areas. Ground snow load is 40 p.s.f.* for Exposure `B", Zone 1 (per ASCEISEI 7- 10)
of the roof s interior portion, and effective wind speed of 100 mph*, uplift is shown.
2. Total area subject to wind uplift is calculated for the Interior,Edge and Corner 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)timber construction specifications for Hem-Fir-North lumber
(assumed). Using 4 lag screws, the pullout value is less than 235 #/inch of screw
thread and OK. Considering the variable factors for the existing roof framing
members, and installation tolerances, use a 2 ''/2"threaded depth with a minimum
5/16"lag screw per attachment points in roof joists ("rafters") components for panel
anchor mounts. This should give a sufficient factor of safety.
E. LIVE, DEAD AND SNOW LOADS:
1. Live load=40 p.s.f. ground snow load; 10 p.s.f. attic storage (trusses only)
Dead Load= 10 p.s.f-roofing/framing; 5 p.s.f. -panels, mounting hardware
Total Live Load=40 p.s.f.; Total Dead Load= 15 p.s.f.
2. These values are within acceptable limits of recognized industry standards for similar
structures. The roof members will 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, opinions and judgments. This report covers this
dwelling's assessment for only the areas for solar panel installations that 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, please do not hesitate to contact me.
Res ctfu� Ily sub"miffed
Russell . Cipo la, is er , T
Structural Engineer, Owner �y
Mass. License No. EN-47478- RUSSELLD.
CIPOLLA
STRUCTURAL ti
* or as specified locally per the State Board of Bldg. Regs. and Stds., whichever g No.47478
RDC/rdcGI
• a
Vivint Solar - PV Solar Rooftop System Permit Submittal
1. Proiect Information
Project Name: Melissa Day
Project Address: 5 Greenway Rd,Salem MA
A.System Description:
The array consists of a 5.5 kW DC roof-mounted Photovoltaic power system operating in parallel with the utility grid.There are(22) 250-
watt modules and(22)215-watt micro-inverters,mounted on the back of each PV module.The array includes(2)PV circuit(s).The array
is mounted to the roof using the engineered racking solution from Zcp Solar.
B.Site Design Temperature: (From Boston Logan INT'L ARPT weather station)
Average low temperature: -21.1 °C (-5.98°F)
Average high temperature: 38.4°C (101.12°F)
C.Minimum Design Loads:
Ground Snow Load: - 40 psf (State Board BR&S)
Design Wind Speed: 100 mph (State Board BR&S)
2. Structural Review of PV Array Mounting System:
A.System Description:
1.Roof type: Comp.Shingle
2.Method and type of weatherproofing roof penetrations: Flashing
B. Mounting System Information:
1.Mounting system is an engineered product designed to mount PV modules
2.For manufactured mounting systems,following information applies:
a.Mounting System Manufacturer: Zep Solar
b.Product Name: ZS Comp
c.Total Weight of PV Modules and mounting hardware: 946 Ibs
d.Total number of attachment points: 36 -
e.Weight per attachment point: 26.27 lbs/square foot
f.Maximum spacing between attachment points: *See attached Zep engineering calcs
g.Total surface area of PV array: 387.42 square feet * -
h.Array pounds per square foot: 2.44 Ibs/square foot
i.Distributed weight of PV array on roof sections:
-Roof section 1: - (14)modules,(18)attachments 33.44 pounds per square foot
-Roof section 2: (8)modules,(18)attachments 19.11 pounds per square foot
vivint. solar
3. Electrical Components:
A. Module (UL 1703 Listed) Qty
Tdna TSM 250-PA05.18 22 modules
Module Specs
Pmax-nominal maximum power at STC - 250 watts
Vmp-rated voltage at maximum power - 30.3 volts
Voc-rated open-circuit voltage - 37.6 volts
Imp-rated current at maximum power - 8.27 amps
Ise-rate short circuit current - 8.85 amps
* Inverter - (UL 1741 listed) Qty
Enphase M215-60-2LL-S22 22 inverters
Inverter Specs
1. Input Data (DC in)
Recommended input power(DC) - 260 watts
Max.input DC Voltage - 45 volts
Peak power cracking voltage - 22V-36V
Min:/Max,start voltage - 22V/45V
Max.DC short circuit current _ - 15 amps
Max.input current - 10.5 amps
1. Input.Data (DC in)
Max.output power - 215 watts
Nominal output current - 0.9 amps
Nominal voltage - 240 volts
Max.units per PV circuit - 17 micro-inverters
Max.OCPD rating - 20 amp circuit breaker
*System Configuration
Number of PV circuits 2
PV circuit 1 - 14 modules/inverters (20) amp breaker
PV circuit 2 - 8 modules/inverters (15)amp breaker
vivinrt. solar
D. Electrical Calculations
1.PV Circuit current
PV circuit nominal current 12.6 amps .
Continuous current adjustment factor 125% 2011 NEC A,6cle 705.60(B)
PV circuit continuous current rating 15.75 amps
2.Overeurrent protection device rating
PV circuit continuous current rating 15.75 amps
Next standard size fuse/breaker to protect conductors 20 amp breaker
Use 20 amo AC rated fuse or breaker
3.Conductor conditions of use adjustment(conductor ampacity derate)
a.Temperature adder "
Average high temperature 38.4°C (101.12°F)
Conduit is installed 1"above the roof surface Add 22°C to ambient 2011 NEC Table 310.15(B)(3)(c)
Adjusted maximum ambient temperature 60.4°C (140.72°F) -
b.PV Circuit current adjustment for new ambient temperature
Derate factor for 60.4°C (140.72°F) 71% 2011 NEC Table 310.15(B)(2)(s)
Adjusted PV circuit continuous current 22.1 amps
c.PV Circuit current adjustment for conduit fill
Number of current-carrying conductors 6 conductors
Conduit fill derate factor 800/6 2011 NF.0 Table 310.15(B)(3)(a)
Final Adjusted PV circuit continuous current 27.7 amps
Total derated ampacity for PV circuit " 27.7 amps
Conductors(tag2 on I-line)must be rated for a minimum of 27.7 amps
THWN-2(90°C) #12AWG conductor is rated for 30 amps (Use#12AWG or target) 2011 NEC Tab1c 310.15(B)(16)
4.Voltage drop(keep below 3%total)
2 acts:
1.Voltage drop across longest PV circuit micro-inverters(from modules to j-box)
2.Voltage drop across AC conductors(from j-box to point of interconnection)
1.Mirco-inverter voltage drop: 0.55%
The largest number of micro-inverters in a row in the entire array is 14 inCircuit 1.According to
manufacturer's specifications this equals a voltage drop of 0.55%.
2.AC conductor voltage drop:
=1 X R X D (=240 x 100 to convert to percent)
=(Nominal current of largest circuit) x(Resistance of#12AWG copper) x(Total wite run) -
= (Circuit 1 nominal current is 12.6 amps)x(0.0020152) x(90� _(240 volts)x(100) 0.94%
Total system voltage drop: 1.49%
vivint. solar
2127/2014 3552306 rl-Zep lator
ZepSolar
Engineering Calculations
3552306 r1
Name: Street Address:5 Greenmy Rd
Email: Suite/PO#:
Phone: City,State,Zip:Salem,Massachusetts 01970 -
Country:United States
System Details
Module Manufacturer Trina Solar Mounting System Zep Solar
PV Module TSM-250-PA05.18 Manufacturer
Quantity of PV Modules 14 Mounting System Type ZS Comp
Array Size (W) 3.500 Roof type Composition Shingle
Attachment Type Comp Mount,Type C
Module-level Enphase Energy-M215-Z
electronics
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2/27/2014 3552306 rl-Zepulator
Engineering Calculations
Design Variables
Description (Symbol) Value Unit
Module Orientation Portrait
Module Weight 44.8 Ibs
Average Roof Height(h) 15.0 ft
Least Horizontal Dimension(Ihd) 25.0 - ft
Edge and Corner Dimension"a" 3.0 ft
Roof Slope(0) 29.0 deg
Rafter/Truss spacing 24.0 in
Rafter/Truss dimension Min.nominal framing member depth of 4"
Basic Wind Speed(V) 110 mph
6yosure Category B
Ground Snow Load(Pg) 40 psf
Risk Category II
Topographic Factor(Kit) 1.0
Thermal Factor for Snow Load(Ct) 1.2
E)posure Factor for Snow Load (Ce) 0.9
Effective Wind Area 10 ftz
Snow Load Calculations (Using calculation procedure of ASCE 7-10 Chapter 7)
Description(Symbol) Interior Edge Corner Unit
Flat Roof Snow Load(Pf) 30.2 30.2 30.2 psf
Slope Factor(CS) 0.7 0.7 0.7
Roof Snow Load 22.5 22.5 22.5 psf
Wind Pressure Calculations (Using simplified procedure of ASCE 7-10 Chapter 27)
Description (Symbol) Interior Edge Corner Unit
Net Design Wind Pressure uplift(Pnet30_up) -21.8 -25.5 -25.5 psf
Net Design Wind Pressure domforce(Pnetso down) 19.9 19.9 19.9 psf
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Adjustment Factor for Height and Exposure Category(A) 1.0 1.0 1.0
Design Wind Pressure uplift(Wup) -21.8 -25.5 -25.5 psf
Design Wind Pressure downforce(Wdown) 19.9 19.9 19.9 psf
ASD Load Combinations (Using calculation procedure of ASCE 7-10 Section 2.4)
Description (Symbol) Interior Edge Corner Unit
Dead Load(D) 2.5 2.5 2.5 psf
Snow Load(S) 19.7 19.7 19.7 psf
Load Combination 1 (D+0.75'(0.6"Wdown)+0.75`S) 24.1 24.1 24.1 psf
Load Combination 2(D+0.6'Wdow0 14.2 14.2 14.2 psf
Load Combination 3(D+S) - - 19.5 19.5 19.5 psf
Uplift Design Load(0.6'D+0.6'Wup) -11.7 -14.0 -14.0 psf
Maximum Absolute Design Load(Pabs) 24.1 24.1 24.1 psf
Spacing Calculations
Description(Symbol) Interior Edge Corner Unit
Max allowable spacing between attachments 59.0 59.0 59.0 in
User selected spacing between attachments given a rafter/truss spacing of 24.0 in 48.0 48.0 48.0 in
Max cantilever from attachments to perimeter of PV array 19.0 19.0 19.0 in
Distributed Weight and Weight per Attachment Point Calculations (In conformance with Solar ABC's
Expedited Permit Process for PV System (EPP))
Description(Symbol) Value Unit
Weight of Modules 627.2 Ibs
Weight of Mounting System 45.24 Ibs
Total System Weight 672.44 Ibs
Total Array Area 246.58 ft2
Distributed Weight 2.73 psf
Total Number of Attachments 18
Weight per Attachment Point 37.36 psf
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2/27/2014 3552306 Q land-Zepulator
ZepSolar
Engineering Calculations
3552306 r2 land
Name: Street Address:5 Greenmy Rd
Email: SuitelPO#:
Phone: City,State,Zip:Salem,Massachusetts 01970
Country:United States
System Details
Module Manufacturer Trina Solar Mounting System Zap Solar
PVModule TSM-250-PA05A8 Manufacturer
Quantity of PV Modules 3 Mounting System Type ZS Comp
Array Size (kM 0.750 Roof type Composition Shingle
Attachment Type Comp Mount,Type C
Module-level Enphase Energy-M215-Z
electronics
http:/Am ..zepulator.corTVprojects/46993/sun ryengineering_print 1/4
2/27/2014 35.52306 r2land-Zepulator
Engineering Calculations
Design Variables
Description(Symbol) Value Unit
Module Orientation Landscape
Module Weight 44.8 Ibs
Average Roof Height(h) 15.0 ft
Least Horizontal Dimension(Ihd) 25.0 ft
Edge and Corner Dimension"a" 3.0 ft
Roof Slope(8) 29.0 deg
RafterlTruss spacing 24.0 in
RafterrTruss dimension Min.nominal framing member depth of 4"
Basic Wind Speed(V) 110 mph
E�posure Category B
Ground Snow Load(Pg) 40 psf
Risk Category II
Topographic Factor(Kit) 1.0
Thermal Factor for Snow Load(Ct) 1.2
Exposure Factor for Snow Load (Ce) 0.9
Effective Wind Area 10 ft2
Snow Load Calculations (Using calculation procedure of ASCE 7-10 Chapter 7)
Description (Symbol) Interior Edge Corner Unit
Flat Roof Snow Load(Pt) 30.2 30.2 30.2 psf
Slope Factor(Cs) 0.7 0.7 0.7
Roof Snow Load 22.5 22.5 22.5 psf
Wind Pressure Calculations (Using simplified procedure of ASCE 7-10 Chapter 27)
Description(Symbol) Interior Edge Corner Unit
Net Design Wind Pressure uplift(Pnet30_up) -21.8 -25.5 -25.5 psf
Net Design Wind Pressure downforce(Pnet3o down) 19.9 19.9 19.9 psf
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Adjustment Factor for Height and Exposure Category(A) 1.0 1.0 1.0
Design Wind Pressure uplift(Wup) -21.8 -25.5 -25.5 psf
Design Wind Pressure downforce(W&n n) 19.9 19.9 19.9 psf
ASD Load Combinations (Using calculation procedure of ASCE 7-10 Section 2.4)
Description (Symbol) Interior Edge Corner Unit
Dead Load(D) 2.5 2.5 2.5 psf
Snow Load(S) - 19.7 19.7 19.7 psf
Load Combination 1 (D+0.75'(0.6'Wdown)+0.75'S) 24.1 24.1 24.1 psf
Load Combination 2(D+0.6"dow0 14.2 14.2 14.2 psf
Load Combination 3(D+S) - 19.5 - 19.5 19.5 psf
Uplift Design Load(0.6"D+0.6'Wup) -11.7 -14.0 -14.0 psf
Maximum Absolute Design Load(Pabs) 24.1 24.1 24.1 psf
Spacing Calculations
Description (Symbol) Interior Edge Corner Unit
Max allowable spacing between attachments 72.0 72.0 72.0 in
User selected spacing between attachments given a rafter/truss spacing of 24.0 in 72.0 72.0 72.0 in
Max cantilever from attachments to perimeter of PV array 24.0 24.0 24.0 in
Distributed Weight and Weight per Attachment Point Calculations (In conformance with Solar ABC's
Expedited Permit Process for PV System (EPP))
Description(Symbol) Value Unit
Weight of Modules 134.4 Ibs
Weight of Mounting System 17.9 Ibs
Total System Weight 152.3 Ibs
Total Array Area 52.84 ft2
Distributed Weight 2.88 psf
Total Number of Attachments 8
Weight per Attachment Point 19.04 psf
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2/27/2014 3552306 r2 port-Zepulatcr
0.
ZepSolar
Engineering Calculations
3552306 r2 port
Name: Street Address:5 Greenmy Rd
Email: Suite/PO#:
Phone: City,State,Zip:Salem,Massachusetts 01970
Country:United States
System Details
Module Manufacturer Trina Solar Mounting System Zep Solar
PV Module TSM-250-PA05.18 Manufacturer
Quantity of.PV Modules 5 Mounting System Type ZS Camp
Array Size (W) 1.250 Roof type Composition Shingle
Attachment Type Comp Mount,Type C .
Module-level Enphase Energy-M215-Z
electronics
http:/M• ..zepulator.comOojmts/46992Jsumma Vwgineeringyrint 1/4
i
2/27/2014 3552306 r2 port-Zepulator
Engineering Calculations
Design Variables
Description (Symbol) Value Unit
Module Orientation Portrait
Module Weight 44.8 Ibs
Average Roof Height(h) 15.0 ft
Least Horizontal Dimension(Ihd) 25.0 ft
Edge and Corner Dimension"a" 3.0 ft
Roof Slope(0) 29.0 deg
Rafter/Truss spacing 24.0 in
Rafter/Truss dimension - Min.nominal framing member depth of 4"
Basic Wind Speed(V) 110 mph
Eryosure Category B
Ground Snow Load(Pg) - 40 psf
Risk Category II
Topographic Factor(Kit) 1.0
Thermal Factor for Snow Load(Ct) 1.2
E)posure Factor for Snow Load(Ce) 0.9
Effective Wind Area - 10 ft2
Snow Load Calculations (Using calculation procedure of ASCE 7-10 Chapter 7)
Description(Symbol) Interior Edge Corner Unit
Flat Roof Snow Load(Pf) 30.2 30.2 30.2 psf
Slope Factor(Ce) - 0.7 0.7 0.7
Roof Snow Load 22.5 22.5 22.5 psf
Wind Pressure Calculations (Using simplified procedure of ASCE 7-10 Chapter 27)
Description(Symbol) Interior Edge Corner Unit
Net Design Wind Pressure uplift(Pnet30 up) -21.8 -25.5 -25.5 psf
Net Design Wind Pressure downforce(Pnet3o Gown) 19.9 19.9 19.9 psf
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Adjustment Factor for Height and Exposure Category(A) 1.0 1.0 1.0
Design Wind Pressure uplift(Wup) -21.8 -25.5 -25.5 psf
Design Wind Pressure domforce(W&o ,) 19.9 19.9 19.9 psf
ASD Load Combinations (Using calculation procedure of ASCE 7-10 Section 2.4)
Description(Symbol) Interior Edge Corner Unit
Dead Load(D) 2.5 2.5 2.5 psf
Snow Load (S) 19.7 19.7 19.7 psf
Load Combination 1 (D+0.75'(0.6'Wdo,,n)+0.75'S) 24.1 24.1 24.1 psf
Load Combination 2(D+0.6'Wd.n) 14.2 14.2 14.2 psf
Load Combination 3(D+S) 19.5 19.5 19.5 psf
Uplift Design Load(0.6'D+0.6'W„p) -11.7 -14.0 -14.0 psf
MaAmum Absolute Design Load(Pabs) 24.1 24.1 24.1 psf
Spacing Calculations
Description(Symboq Interior Edge Corner Unit
Max allowable spacing between attachments 59.0 59.0 59.0 in
User selected spacing between attachments given a rafter/truss spacing of 24.0 in 48.0 48.0 48.0 in
Max cantilever from attachments to perimeter of PV array 19.0 19.0 19.0 in
Distributed Weight and Weight per Attachment Point Calculations (In conformance with Solar ABC's
Expedited Permit Process for PV System (EPP))
Description(Symbol) Value Unit
Weight of Modules 224.0 Ibs
Weight of Mounting System 24.03 Ibs
Total System Weight f^^ 248.03 Ibs
Total Array Area 88.07 ft2
Distributed Weight 2.82 psf
Total Number of Attachments 10
Weight per Attachment Point 24.8 psf
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Enphase M21S60.2LL-S2x-ZC Max Power-Paint Current 2.09 Amps tau?
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EACH MODULE,ATTACHED SOCKET MEET THE REQUIREMENTS? Open-Circuit Voltage(Vod 372 Vats U WITH ZEP HARDWARE YES NO %NA Shm imuit Current fact 837 Amps Cc ac
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RATING AT DISCONNECT. Maximum System Voltage I 1000(IECV600(UL) j
4.)SIZE INVERTER OUTPUT(AC)CONDUCTORS ACCORDING Voc Temperature Coefficient 0321 9d-C
#6 BARE CU GROUND A-� TO INVERTER OCPO AMPERE RATING(See Guide Section 9).
(GROUNDING MODULE v SJTOTALOF 2 INVERTER OGPO(s).ONE FOR EACH NOTES FOR ARRAY CIRCUIT WIRING(Guide Section S and 6 and Appendix O)'
S INVERTER) PV CIRCUIT.DOES TOTAL SUPPLY BREAKERS COMPLY
I WITH 120%BUSBAR EXCEPTION IN 1.)Lowest expected ambient temperature based on ASHRAE minimum mean extreme
NEC 690.641 %YES NO dry bulb temperature for ASHRAE location most similar to installation location: -19°C
MICROINVERTER CONNECTION , Signs(See Guide Section 7) 2.)Highest continuous ambient temperature based on ASHRAE highest month 2%tlry bulb
TO ENGAGE TRUNK CABLE temperature for ASHRAE location most similar to installation location: 39-C l/V11
Sign for inverter OGPD and AC Disconnect 3.)2005 ASHRAE fundamentals 2%design temperatures do not exceed 47-C in the L /
United States(Palm Springs,CA is".1'C).For less than 9 cunenl-carrying conductors
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