1 BERTINI LN - BPA-16-457 SOLAR 5 fo A bog
The Commonwealth of Massachusetts
Board of Building Regulations and Standards CITY OF
Massachusetts State Building Code, 780 CMR SALEM
[� Revised Mar 2011
[n Building Permit Application To Construct, Repair, Renovate Or Demolish a
One-or Two-Family Dwelling
1 This Section For Official Use Only
Building Permit Number: Date Applied
9 !4-
Building Official(Print Name) Signature &te
�— SECTION 1: SITE INFORMATION MN
1.1 Property Address: 1.2 Assessors Map& Parcel Numbers
1 �3el�fil�l�
r,
L la Is this an accepted street?yesno Map Number Parcel Number
1.3 Zoning Information: 1.4 Property Dimensions:
Zoning District Proposed Use Lot Area(sq ft) Frontage(ft)
1.5 Building Setbacks(ft)
Front Yard Side Yards Rear Yard
Required Provided Required Provided Required Provided
1.6 Water Supply: (M.G.L c.40,§54) 1.7 Flood Zone Information: 1.8 Sewage Disposal System:
Public❑ Private❑ Zone: _ Outside Flood Zone? Municipal ❑ On site disposal system ❑
Check if yes❑
SECTION 2: PROPERTY OWNERSHIP[
2 1 Ownet of Record:
Hans bumay Salem MA 01970
Name(Print) City,State,ZIP
1 Bertini Ln 9786013901 Hansdumay08@yahoo.com
No.and Street Telephone Email Address
SECTION 3: DESCRIPTION OF PROPOSED WORIe(check all that apply)
New Construction�p Existing Building❑ Owner-Occupied ❑ Repairs(s) ❑ 1 Alteration(s) ❑ 1 Addition ❑
Demolition ❑ Accessory Bldg. ❑ Number of Units I Other ❑ Specify:
Brief Description of Proposed Work': 111 t ICT( O
SECTION 4: ESTIMATED CONSTRUCTION COSTS
Item Estimated Costs: Official Use Only
Labor and Materials)
1. Building $ 1,B-1 2. 8O 1. Building Permit Fee: $ Indicate how fee is determined:
2. Electrical $S,L fq I, .ZO ❑ 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: $
8(� Check No. Check Amount: Cash Amount:
6. Total Project Cost: $ ' 0 Paid in Full ❑ Outstanding Balance Due:
SECTION 5: CONSTRUCTION SERVICES
5.1 Construuccttion Supervisor License(CSL)
� J \C 4Gr Q e (may e License Number Expiration Date
Name of CSL Holder
List CSL Type(see below)
"14 kicl in qJ:
No.and Street Type Description
ti . R�Q� ` r� A� O,� U Unrestricted2 Family
(Buildings u el ing cu.ft.
R Restricted 1&2 Famil Dwelling
City/Town,State,ZIP M Masonry
RC Roofing Covering
WS Window and Siding
f^ SF Solid Fuel Burning Appliances
`7S1 I Insulation
Telephone Email address D I Demolition
5.2 Registered Home Improvement Contractor(HIC) ,-- zsGi Q s ��
V(V I Y"NT 'c'- cir a V— HIC Registration Number Expiration Date
HIC Company Name or HIC Registrant Name
No.and Street Email address
Cit /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 Vivint Solar
to act on my behalf,in all matters relative to work authorized by this building permit application.
Hans Dumay 4/27/16
Print Owner's Name(ElectronicSignature) Date
SECTION 7b: OWNERS 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 andaccurateto the best of my knowledge and understanding.
Liu QP st t[ �� Q , 5(3/ I �
Print Owner's or Au orized Agen aN�S me (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. ove /oca Information on the Construction Supervisor License can be found at mL% .mass.gov/dps
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 halfibaths
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"
3,
�V p nsolar
o1ar 3301 North Thanksgiving Way, Suite 500
Structural Group Lehi, UT 84043
P: (801) 234-7050
• Scott E. Wyssling, PE
Senior Manager of Engineering scott.wyssling@vivintsolar.com
April 26, 2016
Mr. Dan Rock, Project Manager
Vivint Solar
3301 North Thanksgiving Way, Suite 500
Lehi, UT 84043
Re: Structural Engineering Services
Dumay Residence
1 Bertini Ln, Salem MA
S-4909326
2.34 kW
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 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 2x6 dimensional lumber at 16" on center with 1x8
collar ties every 32" 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 22 degree roof slopes on
the dwelling areas. Roof 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
4 dwelling.
viii nt. - olar
f1.
Page 2 of 2
B. Loading Criteria
10 PSF = Dead Load (roofing/framing) 40 PSF = Roof Snow Load
3 PSF = Dead Load (solar panels/mounting hardware)
Total Dead Load= 13 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 (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 '/;' thick and mounted 4 '/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 lbs/inch of penetration as identified in the Nation
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 '/z', 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.
A---
lyVSH OF A1Ao •
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co . Wyssling, P No X507
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Tag Description Wire Gauge # of Conductors Conduit Type Conduit Size
1 Solar Edge Cable 10 AWG 2 (V+, V-) N/A- Free Air N/A - Free Air Rated for max operating cont
NEC 690.35 compliant
1 Bare Copper Ground (EGC/GEC) 6 AWG 1 N/A- Free Air N/A- Free Air *opens all ungrounded condu
2 THWN-2 10 AWG 2 (V+, V-) PVC 1"
2 THWN-2 - Ground 8 AWG 1 PVC 1"
3 THWN-2 10 AWG 3 (1-L1, 1-L2, 1-N) PVC 1" Notes:
3 THWN-2 - Ground 8 AWG 1 PVC 1" Wire size and breaker calculation.
inverter Continuous Maximum Ou
Example: SE38000A-US-U Max Oul
<20A. Therefore a 20A solar break
each SE380OA-US-U inverter. Wire
be determined with 16A Max for eac
ALL CONDUCTOR%
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Design Conditions:
ASHRAE 2013
Highest Monthly 2% DB Desi
12 PV MODULES PER INVERTER =3120 WATTS STC Lowest Min. Mean Extreme [
1 STRING OF 12 PV MODULES VOC Temp coefficient
System Specs:
Max DC Voltage
0 0 0 0 �� 12 WITHIJUNCTIRREVON BOXERSIBLE
Nominal DC Operating Volta(
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GROUND SPLICE Max. DC Current per String
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thermal expansion and contraction. See Installation Guide for details.
® North Row Extension Warning: PV Modules may need to be shifted with respect to roof trusses to comply with
Q Bonding Jumper maximum allowable overhang.