18 WITCH WAY - BPA (002) 12 Q ��:77 - SI '�T
The Commonwealth of Massachusetts YICES
Board of Building Regulations and Standards nSp�CTIONAI S��fY OF
UlfMassachusetts State Building Code, 780 CMR SALl.�E7M���
�AN glevAeJ1k[W d(/11
Building Permit Application To Construct, Repair, Renovate Or De to Is a
One-or Two-Family Dwelling
1 :�1 This Section For Official Use Only
l l Building Permit Number: Date Applied:
Building Official(Print Name) - Signature Date
I SECTION 1: SITE INFORMATION
I rf\ 1.1 Property Address: ( _Ui ' '((�1 (�\� 1.2 Assessors Map &Parcel Numbers
1.1 a Is this an accepted street?yes Y no 4J+ Map Number Parcel Number
1` 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�h°omasf �core:
ds Salem MA 01970
Name(Print) City,State,ZIP
18 Witch Way 9787451614 Maria.sholds@yahoos m
No.and Street Telephone Email Address
SECT ON 3:DESCRIPTION OF PROPOSED WORK' (check all that apply)
New Construction Existing Building❑ Owner-Occupied ❑ 1 Repairs(s) ❑ Alteration(s) ❑ 1 Addition ❑
Demolition ❑ 1 Accessory Bldg. ❑ Number of Units Other P Specify:
Brief Description of Proposed Work 2:
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:
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: $
! Check No. Check Amount: Cash Amount:
6. Total Project Cost: $ 1 0 Paid in Full 0 Outstanding Balance Due:
SECTION 5: CONSTRUCTION SERVICES
5.1 Constr ction Supervisor License(CSL) U
License Number Ex irat' n ate
Name of C r
!n^ List CSL Type(see below) '
�JY ,
No.and Str6,eS Type Description
U Unrestricted(Buildings up to 35,000 cu.ft.
I r Y`1' 1LUl t R Restricted 1&2 Family Dwelling
City/Town, taS te, M Masonry
RC Roofing Covering
WS Window and Siding
® SF Solid Fuel Burning Appliances
I Insulation
Telephone Email address D Demo 'tion
rvte 5.2 Registered Home Im ent ont cto C1 DAK1
HIC �stration Number E i o a e
HIC Company Name or HI 'st
No.and a Email address
City/TowVS1101fV ITelephone
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
1,as Owner of the subject property,hereby authorize V i v i n t Solar
to act on my behalf, in all matters relative to work authorized by this building permit application.
Thomas Sholds 1/13/16
Print Owner's Name(Electronic Signature) Date
SECTION 7b: OWNER' OR AUTHORIZED AGENT DECLARATION
By entering my name below,I hereby attest under the ams and penalties of perjury that all of the information
contained in this applicatt ❑ 's true an accurate to h be t of y knowledge and understanding. I
1A it
q 1) V,
Print Owner's or Authorized gents ame(Electron' nature) 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.g�
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"
V o V inI so l a r 3301 North Thanksgiving Way, Suite 500
Structural Group Lehi, UT 84043
P: (801) 234-7050
Scott E. Wyssling, PE
Senior Manager of Engineering scoff.wyssling@vivintso/ar.com
January 11, 2016
Mr. Dan Rock, Project Manager
Vivint Solar
3301 North Thanksgiving Way, Suite 500
Lehi, UT 84043
Re: Structural Engineering Services
Sholds Residence
18 Witch Way, Salem MA
S-4774285
5.98 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 Sections (1 and 2): Roof section is composed of 2x6 dimensional lumber at 16" on center 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 24
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.
viv6n�. solar
,., Pane 2 of 2
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
P tY
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 '/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 Ibs/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 ''/2", is less than the maximum
allowable per connection and therefore is adequate.
4. Roof Sections (1 and 2): 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.
AScottt'E.'y
SNOF �
SUN
IL
Wyssling, P No S15507
MA License No. 5 7 q90 9FGISTEP�
FSS/ONAL ENS'
vivin1 solar
EcolibriumSolar
Layout
c
Skirt
c Coupling
End Coupling
0 Clamp
® End Clamp Note: If the total width of a continuous array exceeds 35 ft, break array to allow for
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
0 Bonding Jumper maximum allowable overhang.
EcolibriumSolar
Layout
—, 7-717 T T 7
r .�
G V
Skirt
c Coupling
End Coupling
Clamp
End Clamp Note: If the total width of a continuous array exceeds 35 ft, break array to allow for
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
0 Bonding Jumper maximum allowable overhang.