8 PARLEE ST - BUILDING INSPECTION (4) The Commonwealth of Massachusetts
OF
Board of Building Regulations and Standards CITY SALEM
Massachusetts State Building Code, 780 CMR dMar
' Revised Mar 10!/
Building Permit Application To Construct,Repair, Renovate Or Demolish a
One-or Two-Family Dwelling
This Section For Official Use Only
Building Permit Number: Date W ied: J \\
-mot r✓1 L // 6�/
Building Official(Print Name) gnamre - Date
SECTION 1:SITE INFORMATION
Ll Property dress• 1.2 Assessors Map&Parcel Numbers
g r of 9p,s�
1.Is Is this an accepted street?yes_ no Map Number Parcel Number
1.3 Zoning Information: 1.4 Property Dimensions:
Zoning District Proposed Use Lot Area(sq fl) Frontage(R)
o.� 1.5 Building Setbacks(ft) Z
�— Front Yard Side Yards Rear Yard
= frt
Required Provided Required Provided Required P gded -t
Z
1.6 Water Supply:(M.G.L c.40,§54) 1.7 Flood Zone Information: 1.8 Sewage Disposal Systemn r
Zone: _ Outside Flood Zone?
Public❑ Private❑ Check if es❑ Municipal❑ On site disposal m LW�
SECTION 2: PROPERTY OWNERSHIP'
2.1 Owner'of Record:
Ronald Kacherian Salem, MA. 01970 in
Name(Print) City,State,ZIP
8 Parlee St. 978-741-1578 Flokacherian@comcast.net
No.and Street Telephone Email Address
SECTION 3:DESCRIPTION OF PROPOSED WORK'(check all that apply)
New Construction❑ Existing Building❑ Owner-Occupied ❑ Repairs(s) ❑ 1 Alteration(s) ❑ Addition ❑
Demolition ❑ Accessory Bldg. ❑ Number of Units_ Other ❑ Specily:
Brief Description of Proposed Work': ✓�
S V'»
SECTION 4: ESTI ATED CONSTRUCTION COSTS
Item
Estimated Costs:(Labor and Materials) Official Use Only
I. Building .pp 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 $
Suppression) Total All Fees:$
�'1 Check No. Check Amount: Cash Amount:
6.Total Project Cost: $8,aa�,� 0 Paid in Full 0 Outstanding Balance Due:
SECTION 5: CONSTRUCTION SERVICES
5.1 Construction Supervisor License(CSL) � � ,
J GIMJI ,r, Sy-voy- v� Y--) Liic)n No be Expiration DateQ
xpiratioDateP
Name of CSL Holder
U F _ Vkb\1 _e A List CSL Type(see below) U
No.and Street ` Type Description
�� `,..' r �\�NU� U Unrestricted(Buildings u to 35,000 cu.ttJ
A�i/VlN✓ t I lY�l C1 R Restricted l&2 FamilyDwelling
City/Town,Slate,ZI M Masonry
RC Roofing Cover in
WS Window and Siding
SF Solid Fuel Burning Appliances
^( �pl?osS Ows MAMS(L, I Insulation
Telephone Email address D Demolition
5.2 Registered Home Improvement Contractor(HIC) \1h1110
\J\\) \nt scxor 055u26
HIC Registration Number Expiration Date
HIC Cogiq�gy1N�am�rfilC,Regis nl Name
No.an¢-$t''[11r�`e''11pe��Jl•J\\u U�(,C�� �� ,I'q�. Email address
City/Town,State,ZIP 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 ..........❑ 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 lj)v\Y)'t' SO\J.1r
to act on my behalf, in all matters relative to work authorized by this building permit application.
IRM 11/18/14
Print Owner's Name(Electronic Signature) Date
SECTION 7b:OWNER' 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.
Print Owner's or Authorized Agent' a(Ele nic Signature) Uate
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.gov/ocu Information on the Construction Supervisor License can be found at www.mass
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"
wove ni solar 3301 North Thanksgiving Way,Suite 500
Structural Group Lehi,UT 84043
P: (801)234-7050
Scott E. Wyssling, PE
Head of Structural Engineering scoff.wysslingL vivintso/ar.com
November 18, 2014
Mr. Dan Rock, Project Manager
Vivint Solar
24 Normac Road
Woburn MA 01801
Re: Structural Engineering Services
Kacherian Residence
8 Parlee Street, Salem MA
S-4062485
4.59 kW System
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 Vivint Solar representative identifying specific
site information including size and spacing of rafters 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 2 x 6
dimensional lumber at 16" on center with 1 x 8 collar ties every 32". The attic space is unfinished and
photos indicate that there was free access to visually inspect the size and condition of the roof rafters. All
wood material utilized for the roof system is assumed to be Spruce-Pine-Fir #2 or better with standard
construction components. Our review of the photos of the exterior roof does not indicate any signs of
settlement or misalignment caused by overstressed underlying members.
Stability Evaluation:
A. Wind Uplift Loading
1. Refer to attached Ecolibrium Solar calculations sheet for ASCE/SEI 7-10 Minimum Design Loads
for Buildings and other Structures, wind speed of 100 mph based on Exposure Category "B" and
25 degree roof slopes on the dwelling areas. Ground snow load is 40 PSF for Exposure "B", Zone
2 per (ASCE/SEI7-10).
2. Total area subject to wind uplift is calculated for the Interior, Edge and Corner Zones of the
dwelling.
doeunt. solar
Page 2 of 2
B. Loading Criteria
• 10 PSF= Dead Load roofing/framing 40 PSF = Live Load (around snow load)
• 5 PSF= Dead Load solar Panels/mounting hardware
Total Dead Load=15 PSF
The above values are within acceptable limits of recognized industry standards for similar
structures. Analysis performed of the existing roof structure utilizing the above loading criteria
indicates that the existing rafters 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 (ecolibriumsolar.com).
If during solar panel installation, the roof framing members appear unstable, deteriorated,
structurally compromised or deflect non-uniformly, our office should be notified before proceeding
with the installation.
2. Maximum allowable pullout per lag screw is 235 Ibs/inch of penetration as identified in the
National Design Standards (NDS) of timber construction specifications for Hem-Fir (North
Lumber) assumed. Based on our evaluation, the pullout value, utilizing a penetration depth of 2
1/2", is less than what is allowable per connection and therefore is adequate. Based on the
variable factors for the existing roof framing and installation tolerances, using a thread depth of 2
1/2" with a minimum size of 5/16" lag screw per attachment point for panel anchor mounts should
be adequate with a sufficient factor of safety.
3. Considering the roof slopes, the size, spacing, condition of roof, the panel supports shall be
placed at and attached to no greater than every fourth roof rafter as panels are installed
perpendicular across rafters and no greater than the panel length when installed parallel to the
rafters (portrait). No panel supports spacing shall be greater than four (4) rafter spaces or 64" o/c,
whichever is less.
4. Panel supports connections shall be staggered to distribute load to adjacent rafters.
Based on the above evaluation, it is the opinion of this office that with appropriate panel anchors being
utilized the roof system will adequately support the additional loading imposed by the solar panels. This
evaluation is based on information supplied to us at the time of this report and current industry standards and
practices.
Should you have any questions regarding the above or if you require further information do not hesitate to
contact me.
Ve truly yours, tH OFSsycy�
Scott E. Wyssl' PE 0 50
MA License N . 50 9pF EGiS'r
FSSIONA.
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WITH 120%BUSBAR EXCEPTION IN 1.)Lowest expected ambient temperature based on ASHRAE minimum mean extreme
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temperature for ASHRAE location most similar to installation location: 39-C
Sign for inverter OCPD and AC Disconnect 3.)2005 ASHRAE fundamentals 2%design temperatures do not exceed!47-C in the
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Vivint Solar - PV Solar Rooftop System Permit Submittal
1. Project Information
Project Name: RONALD KACHERIAN
Project Address: 8 Parlee St,Salem MA
A.System Description:
The array consists of a 4.59 kW DC roof-mounted Photovoltaic power system operating in parallel with the utility grid.There are (18)
255-watt modules and(18) 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 Ecolibrium Solar.
B. Site Design Temperature: (From Boston Logan INTL 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: EcoX 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: Ecollbrlum Solar
b.Product Name: Eeorail
c.Total Weight of PV Modules and mounting hardware: 757.9 Ibs
d.Total number of attachment points: 37
e.Weight per attachment point: 20.48 Ibs
f.Maximum spacing between attachment points: * See attached engineering talcs
g.Total surface area of PV array: 316.51 square feet
h.Array pounds per square foot: 2.39 Ibs square foot
i.Distributed weight of PV array on roof sections:
-Roof section 1: (18)modules,(37)attachments 20.48 pounds
vivant. solar
3. Electrical Components:
A. Module (UL 1703 Listed) Qty
Yingh Energy YL255P-29b 18 modules
Module Specs
Pmax- nominal maximum power at STC - 255 watts
Vmp-rated voltage at maximum power - 30 volts
Voc-rated open-circuit voltage - 37.7 volts .
Imp-rated current at maximum power - 8.49 amps
Ise-rate short circuit current - 9.01 amps
B. Inverter (UL 1741 listed) Qty
Enphase M215-60-2LL-S22 18 inverters
Inverter Specs
1. Input Data (DC in)
Recommended input power(DC) - 260 watts
Max.input DC Voltage - 45 volts
Peak power tracking voltage _ - 22V-36V
Min./Max.start voltage - 22V/45V
Max.DC short circuit current - 15 amps
Max.input current - 10.5 amps
2. Output Data (AC Out)
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
C. System Configuration
Number of PV circuits 2
PV circuit 1 - 10 modules/inverters (15) amp breaker
PV circuit 2 - 8 modules/inverters (15) amp breaker
2011 NEC Article 705.60(8)
vivirt. solar
D. Electrical Calculations
1.PV Circuit current
PV circuit nominal current 9 amps
Continuous current adjustment factor 125% 2011 NEC Article 705.60(B)
PV circuit continuous current rating 11.25 amps
2.Overcurrent protection device rating
PV circuit continuous current rating 11.25 amps
Next standard size fuse/breaker to protect conductors 15 amp breaker
Use 15 amp AC rated fuse or breaker
3.Conductor conditions of use adjustment(conductor ampacity derate)
a.Temperature adder
Average high temperature 38.4 cC (101.12°F)
Conduit is installed 1" above the roof surface Add 22°C to ambient 2011 NEC Amde 705.60(B)
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 NBC Anicte 705.60(8)
Adjusted PV circuit continuous current 15.8 amps
c.PV Circuit current adjustment for conduit Pill
Number of current-carrying conductors 6 conductors
Conduit fill derate factor 80% 2011 NEC Amde 705.60(B)
Final Adjusted PV circuit continuous current 12.6 amps
Total derated ampacity for PV circuit 12.6 amps
Conductors(tag2 on 1-line)must be rated for a minimum of 12.6 amps
THWN-2 (90°C) #14AWG conductor is rated for 25 amps (Use#14AWG or larger) 2011 NEC Article 705.60(B)
4.Voltage drop (keep below 3%total)
2 parts:
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: 0.29%
The largest number of micro-inverters in a row in the entice array is 10 mCircuit 1.According to
manufacturer's specifications this equals a voltage drop of 0.29%.
2. AC conductor voltage drop:
=I x R x D (-240 x 100 to convert to percent)
= (Nominal current of largest circuit)x (Resistance of#14AWG copper) x (Total wire run)
= (Circuit 1 nominal current is 9 amps) x(0.0031992)x(80)_(240 volts) x (100) 0.95%
Total system voltage drop: 1.24%
vbvint. solar
EcolibriurnSolar
Customer Info
Name: Ronald Kacherian
Email:
Phone:
Project Info
Identifier: 15918
Street Address Line 1: 8 Parlee St
Street Address Line 2:
City: Salem
State: MD
Zip: 01970
Country: United States
System Info
Module Manufacturer: Yingli Solar
Module Model: YL255C-30b
Module Quantity: 18
Array Size (DC watts): 4590.0
Mounting System Manufacturer: Ecolibrium Solar
Mounting System Product: EcoX
Inverter Manufacturer: Enphase Energy
Inverter Model: M215
Project Design Variables
Module Weight: 40.8 Ibs
Module Length: 65.0 in
Module Width: 39.0 in
Basic Wind Speed: 110.0 mph
Ground Snow Load: 40.0 psf
Seismic: 0.0
Exposure Category: B
Importance Factor: II
Exposure on Roof: Partially Exposed
Topographic Factor: 1.0
Wind Directionality Factor: 0.85
Thermal Factor for Snow Load: 1.2
Lag Bolt Design Load - Upward: 820 Ibf
Lag Bolt Design Load - Lateral: 288 Ibf
EcoX Design Load- Downward: 493 Ibf
EcoX Design Load - Upward: 568 Ibf
EcoX Design Load - Downslope: 353 Ibf
EcoX Design Load - Lateral: 233 Ibf
Module Design Moment—Upward: 3655 in-lb
Module Design Moment—Downward: 3655 in-lb
Effective Wind Area: 20 ft2
Min Nominal Framing Depth: 2.5 in
Min Top Chord Specific Gravity: 0.42
EcolibriumSolar
Plane Calculations (ASCE 7-10): RS1
Roof Shape: Gable Edge and Corner Dimension: 3.0 ft
Roof Type: Composition Shingle Stagger Attachments: Yes
Average Roof Height: 30.0 ft Include Snow Guards: No
Least Horizontal Dimension: 30.0 ft Preferred Portrait Spacing: 48.0 in
Roof Slope: 25.0 deg
Truss Spacing: 16.0 in
Snow Load Calculations
Description Interior Edge Corner Unit
Flat Roof Snow Load 33.6 33.6 33.6 Psf
Slope Factor 0.82 0.82 0.82
Roof Snow Load 27.6 27.6 27.6 Psf
Wind Pressure Calculations
Description Interior Edge Corner Unit
Net Design Wind Pressure Uplift -19.4 -31.9 -47.9 psf
Net Design Wind Pressure Downforce 11.4 11.4 11.4 psf
Adjustment Factor for Height and Exposure Category 1.0 1.0 1.0
Design Wind Pressure Uplift -19.4 -31.9 -47.9 'psf
Design Wind Pressure Downforce 16.0 16.0 16.0 psf
ASD Load Combinations
Description Interior Edge Corner Unit
Dead Load 2.3 2.3 2.3 psf
Snow Load 27.6 27.6 27.6 psf
Downslope: Load Combination 3 11.5 11.5 11.5 psf
Down: Load Combination 3 24.7 24.7 24.7 psf
Down: Load Combination 5 11.7 11.7 11.7 psf
Down: Load Combination 6a 26.3 26.3 26.3 psf
Up: Load Combination 7 -10.4 -17.9 -27.5 psf
Down Max 26.3 26.3 26.3 psf
Spacing Results(Landscape)
Description Interior Edge Corner Unit
Max Allowable Spacing Between Attachments 64.1 64.1 62.7 in
Max Spacing Between Attachments With Rafter/Truss Spacing of 16.0 in 64.0 64.0 - 48.0 in
Max Cantilever from Attachment to Perimeter of PV Array 21.4 21.4 20.9 in
Spacing Results(Portrait)
Description Interior Edge Corner Unit
Max Allowable Spacing Between Attachments 41.6 41.6 41.6 in
Max Spacing Between Attachments With Rafterlrruss Spacing of 16.0 in 32.0 32.0 32.0 -in
Max Cantilever from Attachment to Perimeter of PV Array 13.9 13.9 13.9 in -
EcolibriumSolar
Layout
Skirt
e Coupling
O Clamp Warning: PV Modules may need to be shifted with respect to roof trusses to comply with
0 Bonding Jumper maximum allowable overhang.
EcolibriumSolar
Distributed Weight (All Planes)
In Conformance with Solar ABC's Expedited Permit Process for PV System (EPP)
Weight of Modules: 734 Ibs
Weight of Mounting System: 74 Ibs
Total System Weight: 808 Ibs
Total Array Area: 317 ft2
Distributed Weight: 2.55 psf
Number of Attachments: 37
Weight per Attachment Point: 22 Ibs
Bill Of Materials
Part Name Quantity
ECO-001_101 EcoX Clamp Assembly 37
ECO-001_102 EcoX Coupling Assembly 24
ECO-001_105B EcoX Landscape Skirt Kit 0
ECO-001 105A EcoX Portrait Skirt Kit 5
ECO-001_103 EcoX Composition Attachment Kit 37
ECO-001_109 EcoX Electrical Assembly 1
ECO-001_106 EcoX Bonding Jumper Assembly 2
ECO-001_104 EcoX Inverter Bracket Assembly 18
ECO-001 338 EcoX Connector Bracket 18