6 CRESCENT DR - BUILDING PERMIT APP 1 D12- 1 '7 53 5
The Commonwealth of Massachusetts
Board of Building Regulations and Standards CITY OF
Massachusetts State Building Code, 780 CMR SALEM
Revised Mar 2011
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:
t,.�
Building Official(Print Name) Signature Date
SECTION 1: SITE INFORMATION
1.1 Property Address: n /1, 1/ 1.2 Assessors Map& Parcel Numbers
Y
LII 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 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'
j,. w rof R,Qcord:10 -
Name Pri Y City,Sta ,
No.andtr t
S ee Telephone Email Address
SEC ION 3: DESCRIPTION OF PROPOSED WORK2(check all that apply)
New ConstructimIXI Existing Building❑ Owner-Occupied ❑ 1 Repairs(s) ❑ Alteration(s) ❑ Addition ❑
Demolition ❑ 1 Accessory Bldg. ❑ Number of Units I Other ❑ Specify:
Brief Descri tion of Proposed W z. 401
SECTION 4:ESTIMATED CONSTRUCTION COSTS
Item Estimated Costs: Official Use Only
Labor and Materials
1. Building $ 1. Building Permit Fee: $ Indicate how fee is determined:
❑ Standard City/Town Application Fee
2.Electrical $ ❑Total Project Cost'(Item 6)x multiplier x
3. Plumbing S 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: $ 0 Paid in Full 0 Outstanding Balance Due:
SECTION 5: CONSTRUCTION SERVICES
5.1 Constructionr License(CSL) IoR/I
License umber Epi
Nametderhvis'
List CSLType(see below)
No.and Street ^ Type Description
\ � (6oA , ' /l,}}— U Unrestricted2 Family
(Buildings u el ing cu.ft.)
Ci rr ,State,ZI �U �t/ '� R Restricted l&2 Famil Dwelling
ty M Masonry
RC Roofing Covering
WS Window and Siding
SF Solid Fuel Burning Appliances
I Insulation
Telephone V Email address D Demolition
5.2 RegisteredmU'e Improvement CIo/ntractor(HIC)
✓ HIC egistration Number E pu
HIC Company Name ' trant Na e,
No.and Street Email address
Ci /Town, State,ZfP 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 Issu e 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
1, as Owner of the subject property,hereby authorize V III)
to act on my behalf, in�all ers relative to work authorized by this building permit application..
///// G
Print Owner's Name(Elecnoni Signature) Dat
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 trueTIOAD
curate to the best of my knowledge and understanding.
r--
Print Owner's or Authoriz d ent's Nalife( lectromc Signature) D e
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. og_v/oca Information on the Construction Supervisor License can be found at www.mass.eov/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 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"
.l;I o V u ll tl o S o I a r 3301 North Thanksgiving Way, Suite 500
Structural Group Lehi, UT 84043
P: (801) 234-7050
Scott E. Wysslfng, PE
Senior Manager of Engineering scott.wyssling@vivintsolar.com
December 07, 2015
Mr. Dan Rock, Project Manager
Vivint Solar
3301 North Thanksgiving Way, Suite 500
Lehi, LIT 84043
Re: Structural Engineering Services
Capra Residence
6 Crescent Dr, Salem MA
S-4724760
5.2 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. 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 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.
vivi t. solar
Page 2 of 2
L
B. Loading Criteria
10 PSF = Dead Load (roofing/framing) 40 PSF = Live Load (ground 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 ''/2" thick and mounted 4 '/z" 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 Standards (NDS) of timber construction specifications for Spruce-Pine-Fir assumed. Based
on our evaluation, the pullout value, utilizing a penetration depth of 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.
AScotttE
ly yours, tNOF
9
u
IL
. Wysslin9, P No.5507
MA License No. 5 7 q90 9FGiS7fP�
FSS/ONAI ENS'
dueun t. solar
o a�
000
O
SN
?O
a0 g<
m� ON
o�
CA
T GI
� N
C
3
m A
O
O O
m <
2 m
ti Z
to ti
N
N�
O N
Oti
O A
C Z
m N O
N4 O
v
EEX E\
M\\E\ M 0
2
2
47
m 0 x
i
m
< y
m
z
0\\\\N\
NES,\IMN7
A m
a MN m
N p
Co
C) <
D x\\001 ME
m C/)
w N
M
I I
X
O
O
n
r
D
Z
C M 2 M INSTALLER:VMINTSOLAR .p�1,�s. Capra Residence
PV 2.0 A ROOF y MAL CENSE.MAHIC 1706484044129 v5 V i ni l C O I r Salem,MA 01970
v u u u J 6 Crescent Or
PLAN DRAWN BV:JRS AR 4724760 LatM.difi.d:12RI2016 UTILITY ACCOUNT NUMBER 86106E8018