3 BARNES CIR - BPA-14-1107 SOLAR $ 357 cl� r3�2
PE��ON'Al SERVIC1u; ,
The Commonwealth of Massachusetts
2
° b Board of Building Regulations and Stan �N A CITY OF
SALEM
/ Massachusetts State Building Code,780 RTR Revised Mar 1011
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 Applied:
Building Official(Print Name) Signature Date
SECTION 1: SITE INFORMATION
1.1 Propert Address: 1.2 Assessors Map&Parcel Numbers
l.l a Is this an accepted street?yes x no Map Number Parcel Number
1.3 Zoning,Information: 1.4 Property Dimensions:
Zoning District Proposed Use Lot Area(sq R) 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?
Check if yes❑ Municipal❑ On site disposal system ❑
SECTION 2: PROPERTY OWNERSHIP'
2.1 KVIY \R£co d: v..Q r� —,Salem k4k
Name(Print) Y - City,State,ZIP
VnRL
No.and Street CA Telephone Email Address
SECTION 3:DESCRIPTION OF PROPOSED WORK(check all that apply)
New Construction X Existing Building❑ Owner-Occupied ❑ 1 Repairs(s) ❑ 1 Alteration(s) ❑ 1 Addition ❑
Demolition ❑ 1 Accessory Bldg. ❑ Number of Units_ Other ❑ Specify:
Brief Description of Proposed Work: I p p
hmlvv }cLIC. Sol0.r
SECTION 4:ESTIMATED CONSTRUCTION COSTS
Item Estimated Costs:
(Labor and Materials Official Use Only
1.Building $ U I. 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:$
6. Total Project Cost: $5I1ODp.
Check No. Check Amount: Cash Amount:
❑Paid in Full ❑Outstanding Balance Due:
C4DV L1 0 `i p .0 . (0 (21
SECTION 5: CONSTRUCTION SERVICES
5.1 -Construction Supervisor License(CSL)
J1Ko,me_s '2 e rryi_QYl License Number Expiration ate
Name of CSL Holder
2 I 1 ' c6 n S ^� List CSL Type(see below) U
No.and Street l I� I Type Description
Sal LL l lS {� Q I D U Unrestricted(Buildings u to 35,000 cu.ft.
Cityrrown,State ZIP R Restricted 1&2 Family Dwelling
(/ M Masona
RC Roofing Covering
WS Window and Siding
�C SF Solid Fuel Burning Appliances
nACLn'D(aro VIVt 1 Insulation
Tele hone Email address COr) D Demolition
5.2 Registered Home Improvement Contractor(HIC)
Nshvlvyt- Solar2i% eVop2Y LLCl8
HIC Registration Number E pira on ate
HIC Com any Name or Hlc Registrant Name
4a3 P N. SOD W . Vv\,aSOVLr(�vtvtvl}solar
NR and Street
1�YDY0 V'1- '64t004 _i$13D5'3oLPS Email address c.arvt
Ci /Town,State,ZIP Tel 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
L as Owner of the subject property,hereby authorize V IV 1✓t Sfl J0Lr
to y behalf,in all matters relative to work authorized by this building permit application.
,^
�� � U_2s-
Print Ow6er's a(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 th' p ' tion is true and accurate to the best of my knowledge and understanding.
V 'f 0_Y-- le - Z&H
Print O s r rized Agent's 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. ove /oca Information on the Construction Supervisor License can be found at www.mass.sov/drs
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'
sw
VV CONSULTING Wyssling Consulting
321 West Main Street
Boonton, NJ 07005
Scott E. Wyss/ing, PE, PP, CME office(973)335-3500
cell(201) 874-3483
fax(973)335-3535
swyssling@wysslingconsulting.com
June 9, 2014
Mr. Dan Rock, Project Manager
Vivint Solar
24 Normac Road
Woburn MA 01801
Re: Structural Engineering Services
Venico Residence
3 Barnes Circle, Salem MA
AR#3151028
10.2 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 trusses 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 Vivint Solar and will be
utilized for approval and construction of the proposed system.
3. Photovoltaic Rooftop Solar System Permit Submittal prepared by Vivint Solar 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 truss system
with all chords constructed of 2 x 4 dimensional lumber at 24" on center. 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 Hem-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 ZEP 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 15 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 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 and in accordance with the 2012 International Residential Code. Analysis performed of
the existing roof structure utilizing the above loading criteria indicates that the existing truss
system will support the additional panel loading without damage, if installed correctly.
C. Roof Structure Capacity
1. The photographs provided of the attic space and truss system 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 "ZEP Code Compliant
Installation Manual', which can be found on the ZEP website (zepsolar.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. 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 Yz', is less than what is
allowable per connection and therefore is adequate. Based on the variable factors for the existing
root 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 the panel length when installed parallel to the trusses (portrait).
No panel supports spacing perpendicular to the trusses shall be greater than two (2) trusses or 48"
o/c,whichever is less.
4. Panel supports connections shall be staggered to distribute load to adjacent trusses.
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 in
conformance with the 2012 International Residential Code, current industry standards and practice, and based
on 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.
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