27 BRIDGE ST - BUILDING INSPECTION (2) The Commonwealth of Massachusetts
�i;a 4a Board of Building Regulations and Standards RECEINElly OF
la INSPECT ONW6 ICE
Massachusetts State Building Code,780 CMR
Recisedrldor2011
ems,'
Building Permit Application To Construct, Repair, Renovate Or Demolish a A (Q 23
One-or Two-Family Dwelling HIS A G 32
( (1 This Section For Official Use Onh
Btulding Permit Number- Date Applied:
Building Official(Print Name) Siamture
1
SECTION L• SITE INFORMATION
t� I.l Property' dregs: 1.2 Assessors Map& Parcel Numbers
I_la is this an accepted street?yes v� no Map Number Parcel Number
1.3 Zoning Information: La Property Dimensions:
11 Zoning District Proposed Use Lot Area(sq n) Fronta,e(ft)
1.5 Building Setbacks(ft)
Front Yard Side Yards Rear Yard
Required Provided Required Provided Required Providrxl
1.6 Water Supply: (M.G.L c.40,§54) 1.7 Flood Zane Information: 1.8 Sewage Disposal System:
Zone: Outside Flood Zone'?Public❑ Private❑ Check if yes[] Municipal ElOn site disposal scslem ❑
SECTION 2: PROPERTY OWNERSHIP'
2.1 Owner of R eo rd:
-Z\ Cam-, t4Czz� 01
Name(Firiut) Cirv.State,.ZIP
lt—
No.and Street Telephone Email Address
SECTION 3: DESCRIPTION OF PROPOSED WORW(check all that apply)
New Construction❑ Existing Building_❑ Owner-Occupied ❑ Repairs(s) ❑ Alteration(s) ❑ Addition ❑
Demolition ❑ Accessory Bldg. ❑ Number of Unit Other Spec-iiy: �(�
Brief Description of Pro losed Nkork':
SECTION 4: ESTIMATED CONSTRUCTION COSTS
Estimated Costs:
Item (Labor and Materials) Official Use Only
1.Buildin_g $ J 1. Building Permit Fee: $ Indicate how fee is determined:
a. Electrical $ ❑ Standard CityfFown Application Fee
❑Total Project Cost'(Item 6)x multiplier x
3. Plumbing $ 2. Other Fees: $
4. Mechanical (FfVAC) $ List:
�. Mechanical (Fire $
Su� cession) Total Al]Fees: $
,�rj\ Check No. Check Amount: Cash Amount:
6. Total Project Cost: $ �j IJUi ❑Paid in Full ❑Outstanding Balance Due:
d`l1At �tsr1 I N S� .S.E �I3
• SECTION is CONSTRUCTION SERVICES
5.1 Construction Supervisor License(CSL) t1 ;L 1 _
-1 ieensLe Nit ber EspiraCbon Datc
NanrN�MI-1.1& jl
' Lis[CSL TN=pc(see belm+=) lJ
Type Description
No.and Strect
U Unrestricted(Buildings u2 to 35.000 cu.h.)
R Restricted 1&2 Family Dwelling
Cit\dToma.State.ZIP M Mason
RC Roo6n_-Cmerin)
wS Windowand Sidine
SF Solid Fuel Bumin;Appliances
I Insulation
Telephone Gnail address D Demolition
5.2 Registered Home Improvement Contractor(HIC)
\L,IJ�—, +�^�i-1JLS-A'..�/- ` HIC Reuistruuon Number bExpirationt ate
Il lip,
yny11larnNo dSt
Enmil address� 6�
Ci R'(fowm,Stale,ZIP C0 lele shone
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 trill 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 authori2e�l-�,,1 �
to act on my behalf,in all matters relative to work authorized by this building permit application.
hn
Mint 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 appl a ion is true and accurate to the best of my knowledge and understanding_
Jh� �
rint lTv°net s or Authorized A.-ent s Name(Electronic Signature.) Date
NOTES:
1. An Owner who obtains a building permit to do his/her own RNork,or an owner who hires an unregistered contractor
(not registered in the Flonme Improvement Contractor(HIC)Program),will not have access to the arbitration
program or r uaranty find under M.O.L.c. 142A. Other important information on the HIC Program can be found at
wv�c/oca Information on the Construction Supervisor License can be found at wvvw mass.uov/dps
2. When substantial work is planned,provide the information below:
Total floor area (sq. ft.) (including garage, brushed basennent/attics,docks or porch)
Gross living area(sq. ft.) Habitable room count
Number of fireplaces Number of bedrooms
Number of bathrooms Number of half/baths
Tvpe of heatin=system Number of decks/porches
Type of cooling system Enclosed Open
3. 'Total Project Square Footagc" may be substituted for`Total Project Cost-
Optimize Engineering Co., LLC
P.O. Box 264•Farmville•VA 23901
Ph: 434.574.6138•E-mail: grichardpe@aol.com
Richard B. Gordon, P.E.
President
August 3, 2015
Salem Building Department
Salem, MA Re: Solar Panels Roof Structural Framing Support
To Whom It May Concern:
I hereby certify that I am a Licensed Professional Engineer in the State of Massachusetts. Please note the
following conclusions regarding framing structure, roof loading,and proposed site location of installation:
1. Existing roof framing: Conventional framing is 2x6 at 30" o.c.with 8'span(horizontal rafter
projection). This existing structure is definitely capable to support all of the loads that are indicated
below for this photovoltaic project after sister rafters with a 2x6 using (2)10d nails V o.c. Use of(2)
Guard DogT FMGDO02 screws is approved, or equal shear strength of approx. 120 lb, V o.c.at areas
where little space is available only with remainder of member secured with(2)10d nails V o.c. If do
not sister,then install a 2x4 @ 30"o.c. knee wall over an interior bearing wall to limit span of rafters
between supports to 7'-6".
2. Roof Loading
• 4.33 psf dead load (modules plus all mounting hardware)
• 27 psf snow live load(45 psf ground snow live load reference)
• 4.5 psf dead load roof materials
• Exposure Category B, 115 mph wind uplift live load of 19.6 psf(wind resistance)
3. Address of proposed installation: Residence of Judith Herwig,27 Bridge Street,Salem,
Massachusetts
This installation design will be in general conformance to the manufacturer's specifications,and is in
compliance with all applicable laws, codes,and ordinances,and specifically, International Residential Code/
IRC 2009,2011 NEC,and 2012 ICC Energy Code. The spacing and fastening of the Unirac mounting
brackets is to have a maximum of 64"o.c.span along the rail between mounting brackets and secured using
5116"x 31/z' length corrosive resistant steel lag bolts. In order to evenly distribute the load across the roof
rafters,there shall be a minimum of 2 mounting brackets per rafter&min.2" penetration of lag bolt per
bracket,which is adequate to resist all 115 mph wind live loads including wind shear. The mounting
brackets shall alternate between adjacent rafters between rail rows for better distribution of roof load.
Penetration of anchors for modules mounted within 18"of ridge and edges of roof is to be a minimum of 3".
Rails may be attached to either of two mounting holes in the L-feet. Mounting in the lower hole for a low
profile, more aesthetically pleasing installation or mount in the upper hole for a higher profile to maximize
airflow under the modules to cool them more. Slide the 3$-inch mounting bolts into the footing bolt slots.
The rails will be attached to the footings with the flange nuts.
Very truly yours,
Optimize Engineering Co.,/L}LC
21� -1
Richard B: on, PIE. RICHARD B. Sm
Massachusetts P.E. License No.49993 O GORDON -,
MECHANICAL ENGINEERING U MECHANICAL -I
CIVIL ENGINEERING NO.49993
ELECTRICAL ENGINEERING -%�)p PFO/S7EP�0 ��
�SSIONAL ENS
Optimize Engineering Co., LLC
P.O. Box 264eFarmville•VA 23901
Ph: 434.574.6138.E-mail: grichardpe@aol.com
Richard B. Gordon, P.E.
President
July 24, 2015
Salem Building Department
Salem,MA Re: Solar Panels Roof Structural Framing Support
To Whom It May Concern:
I hereby certify that I am a Licensed Professional Engineer in the State of Massachusetts. Please note the
following conclusions regarding framing structure, roof loading,and proposed site location of installation:
1. Existing roof framing: Conventional framing is 2x8 at 16"o.c.with 15'-7"span(horizontal rafter
projection)to knee wall. This existing structure is definitely capable to support all of the loads that
are indicated below for this photovoltaic project after sister the rafters with a 2x6 using (2)10d nails
V o.c. Use of(2)Guard DogTM FMGDO02 screws is approved, or equal shear strength of approx. 120
lb, V o.c.at areas where little space is available only with remainder of member secured with(2)10d
nails 1' o.c. If do not sister,then install a 2x4 @ 16"o.c. knee wall over an interior bearing wall to
limit span of rafters between supports to 9'-6".
2. Roof Loading
4.33 psf dead load(modules plus all mounting hardware)
• 27 psf snow live load(45 psf ground snow live load reference)
4.5 psf dead load roof materials
• Exposure Category B, 115 mph wind uplift live load of 19.6 psf(wind resistance)
3. Address of proposed installation: Residence of Kayla Cournoyer, 11 Japonica Street,Salem, MA
This installation design will be in general conformance to the manufacturer's specifications, and is in
compliance with all applicable laws,codes,and ordinances, and specifically, International Residential Code/
IRC 2009,2011 NEC,and 2012 ICC Energy Code. The spacing and fastening of the Unirac mounting
brackets is to have a maximum of 64" o.c.span along the rail between mounting brackets and secured using
5116"x 3%" length corrosive resistant steel lag bolts. In order to evenly distribute the load across the roof
rafters,there shall be a minimum of 2 mounting brackets per rafter&min.2" penetration of lag bolt per
bracket,which is adequate to resist all 115 mph wind live loads including wind shear. The mounting
brackets shall alternate between adjacent rafters between rail rows for better distribution of roof load.
Penetration of anchors for modules mounted within 18" of ridge and edges of roof is to be a minimum of 3".
Rails may be attached to either of two mounting holes in the L-feet. Mounting in the lower hole for a low
profile, more aesthetically pleasing installation or mount in the upper hole for a higher profile to maximize
airflow under the modules to cool them more.Slide the 3B-inch mounting bolts into the footing bolt slots.
The rails will be attached to the footings with the flange nuts.
Very truly yours,
Optimize r a rin Co.,
00 OF
02� MASs9cti
Richard B. Gordon, PA. RicHARO B N. m
Massachusetts P.E.License No.49993 o GORDON
U MECHANICAL y
NO.49993
�p PFG/S TEFEO�FQ.
�SS/ONAL�O\
CIVIL —
ENGINEERING ELECTRICAL
ENGINEERING
l
SnapNrack-
.
`U Solar Mounting Solutions �f
Series 100 Residential Roof Mount System
The SnapNrack Series 100 UL Roof Mount System is an efficient, visually appealing,
photovoltaic (PV) module installation system. Series 100 UL is listed to the UL 2703
for grounding/bonding and fire classification. The System's components provide an
adequate bonding path which has eliminated the need for grounding lugs and wash-
ers at each module, and bonding jumpers between splices. In addition to grounding
and bonding, the roof mount system, Series 100 UL, is Class A Fire Rated when in-
stalled with Type I and Type II Modules. SnapNrack's UL 2703 Certification and Com-
pliance ensures that SnapNrack installers can continue to provide the best in class
installations in quality, safety and efficiency.
• Appealing design with built-in aesthetics
• No grounding lugs required for modules
• All bonding hardware is fully integrated into j
the components
• Rail splices bond rails together, no rail jump- _
ers required
• Proprietary SnapNrack grounding lug snaps
in the rail channel A a +,
�° � . mom,.
• No drilling of rail or reaching for other tools
required
M
• Class A Fire Rating for Type 1 and 2 modules
System Features Include
Snap in Single Tool Easy No Cutting
Hardware Installation Leveling or Drilling
AN
Integrated Wire Preassembled Integrated bonding UL 2703 Certified
Management hardware
Resources snapnrack.com/resources I Design configure.snapnrack.com Where to Buy snapnrack.com/buy
SnapiNrackr
Solar Mounting Solutions I
Stainless eol[wldn Stainlass Steel SnapNrack Bonding —SnapNrack Stzndzrtl Rail
Spilt-Lock Washer Holt with SPIIf- SPGw Insert
LocA W ashar
SnapNrack Bonding —SnapNrack
Adjustable End SnapNrack Splice _
CIamP TOP Bonding Base "A
Mid Clamp SnapNrack
snaPNrack Bond `o Bonding
Adjustable End /—SnapNrack / Sialnlass T
l Nu[
�Q_/r[/ eondlny r Bolt with
Clamp Bottom Stainless Hardwara with
Charm=_I Nu[
Split-Lock Washers Spht Lock i
SnapNrack Bonding SnapNrack Bonding SnapNrack Bonding a/ashar t
Adjustable End Clamp Mid Clamp Standard Rail Splice SnapNrack J
Gl-b no LYg 12-b AWG�
Copper Wire
" SnapNrack Grountl Lug
Assembly
(ONE REQUIRED PER ROW OF
MODULES)
SnapNrack Bonding Universal
End Clamp(JEC)Weve
EJEC Poll Strap
9e Sta mess Steel
-- with Flat wash.rar
�. IF SnapNrack Bonding
Universal End Clamp
SnapNrack
Bonding
Standoff
Clamp
Assembly
SnapNrack Serrated Stainless Je SnapNrack SnapNrack Bonding
Rubber Steel Flange Nut Bonding Channel Nut
Channel rStainless
Ran Collar Serrated Stainless Nut Flange Nut
Steal Flange Holt SnapNrack Stanlass
S napNmck— g�Dagree Flange
M II Finish L Foot Bolt
Standoff o
Ij napNrack
SnapNrack— All Purpose
Mill Finish L Foot
Standoff
Bas=_(1-Hole SnapNrack snaPNrack
Base shown) SnapNrack L Foot Metal Roof
Mill Finish Flashing Base Assembly
L Foot Base
SnapNrack Bonding SnapNrack Bonding SnapNrack Metal
Roof Base with
Standoff Assembly L Foot Base with Flashing Bonding L Foot
SERIES r • TECHNICAL DATA
e. _ _. g • 6000 Series aluminum,,., •:.. - 4. .,,
w
Materials Stainless steel ' '� - � A -� '} _ � _ - s„ •
Galvanized steel and aluminum flashing -
• Clear and black anodized aluminum
Material Finish
• Mill finish on select components
• Listed to UL Standard 2703 for Grounding/Bonding and Fire Classification
' Calcs.&Certifications • Class A Fire Rating Type I and Type 2 modules -
jjj _• Stamped Structural Engineering Reports for all 50 States
• SnapNrack Grounding Lug (One lug per individual row of modules)
Grounding
• Integrated bonding components
I I—
'Warranty 10 year limited product warranty; 5 year limited finish warranty
877-732-2860 7 www.snapnrack.com t contact@snapnrack.com
r�2015 by Sn.apNiack Solar Mounting Solutions.All righs reservco
SNAPNRACK SERIES 100 ON FLASHED L-FEET REVISION.
FLASHED L-FEET ARE OPTIMIZED FOR QUICK
AND ROBUST INSTALLATION ON STANDARD
COMPOSITION SHINGLE ROOF SURFACES
FOR OTHER ROOF TYPES STANDOFFS ARE RECOMMENDED
_ - - -SNAPNRACK
11 STANDARD RAIL
y I
' ,ram-- ----�----�----= ---=_
ROOF RAFTER TYP(ROOF ATTACHMENTS SHOULD ' I
ALWAYS BE EMBEDDED INTO ROOF RAFTERS OR
STRUCTURAL MEMBERS SUCH AS STEEL PURLINSO ROOF SHEATHING,UNDERLAYMENT, ,
AND ROOFING MATERIAL®
��nlmnr�
I
MAINSTREAM ENERGY CORP. DESIGNER: G McPl eeIe. 'SCALE: ® PART NUMBER: DESCRIPTION'. REV
suu/n�a NmQGI; I ^ •!�»'T:w�^`r DRAr7ER: DRre� S100 D01 SERIES 100 OVERVIEW,ON FLASHED e
r
IPyN/Um�NlwflOm�gb 0 ....,.,.o,-...� DATE: L-FEET
1 APPROVED BY:
REVISION:
SNAPNRACK MODULE
ATTACHMENT
HARDWARE
SNAPNRACK
STANDARD RAIL
f r/
ROOF SHEATHING,UNDERLAYMENT,
AND ROOFING MATERIAL®
i
f
ROOF RAFTER TYP(ROOF ATTACHMENTS
SHOULD ALWAYS BE EMBEDDED INTO ROOF
RAFTERS OR STRUCTURAL MEMBERS SUCH AS
STEEL PURLINS F
MAINSTREAM ENERGY CORP. DESIGNER- GWC wotms SCALE: ® PART NUMBER'. 'DESCRIPTION: REV
rJ'II IIL�I�D V U l�llSll 11 ,• S700 D02 SERIES 100 OVERVIEW
•••eu.m».«.,..uuc..n DRAFTER: D RYA F
Foy mummFm a ' • _; - APPROVED BY: DATE: ® ,ON STANDOFFS
so I a r=oo SolarEdge Power Optimizer
Module Add-On for North America
P300 / P400 / P405
P300 P400 P405
(for 60.ce11 modules) if.,72&96-cell modules) (for thin film modules)
INPUT
Rated Input DC Power') 300 400 405 W
........................................................ .................................. .................................. .................................. ...... ..
Absolute Maximum Input Voltage 48 80 125 Vdc
(Voc at lowest temperature)
.._..................__......._.__...__......._ ............_.._..._...._..... ......_..._.....................I............._................... _......_...
MPPT Operating Range 8-48 8-80 12.5-105 Vdc
....................t Cir .............................. .................................. ..................................................................... ....A.......
Maximum Short Circuit Current(Isc) 10 Adc
. a.._.... ._..._.... .__..... . . ._..._. ... . ......... ... . . ....... ... ..._.._.... .. ............ . .. ............... ... . ......
Maximum DC Input Current 12.5 Adc
Maximum Efficiency 99.5
Weighted Effic ency 98 8 %
..... .. . . ..... . . .... .. ....... ... . .. ...... . .. . . ..... ........ .. ... .. ......
Overvoltage Category 11
OUTPUT DURING OPERATION(POWER OPTIMIZER CONNECTED TO OPERATING SOLAREDGE INVERTER)
Maximum Output Current 15 Adc
..................................................... ..................................................................... ................................... .............
Maximum Output Voltage 60 I 85 Vdc
OUTPUT DURING STANDBY(POWER OPTIMIZER DISCONNECTED FROM SOLAREDGE INVERTER OR SOLAREDGE INVERTER OFF)
Safety Output Voltage.per Power Optimizer 1 Vdc
STANDARD COMPLIANCE
EMC FCC Rallis Class B,IEC61000-6-2,IEC61000-6-3
........................................................ ........................................................................................................ .............
SaE - (cf U
.......fety................................................. ..................... I
..................C62109.....1........lass.II sa........ety),..........L1741................................. .............
RoHS Yes
INSTALLATION SPECIFICATIONS
Maximum Allowed System Voltage 1000 Vdc
Pxxx2series 141 x212 x 405/555 x 8.34 x 159 mm/m
Dimensions(w x L x H) US x i5z x 2zs/ zs 1sz x as j 128 x i52 x 48 j
Pxxx S serves nnn/m
5 x597x108 5x5.97x 137 5x597x1.89
Pxxx2senes 950/21
/ . ....Weight(including ... ,.._.,. .._..
Input Connector MC4 Compatible.
Output Wire Type/Connector i, Double l nsulated MC4 Compatible
Output Wire Lengtl,... ... . ....... ._... .095/.30. . ..._.� .. ... izJ.39. ..... ... _... In,
Operatin Te
ll Ran e 40 +85/ 40 +185 "C/'F
Protection Rating I Pxxx 2 series IP65/NEMA4
II .. . ... ... . _. ._ ... . ... ...
Pxxx 5 series IP68/NEMA6P
Relative Humidity D-100 %
....._......._.....Y............._............._... ......_.............................. ................._.........................,... .._.........
''"fle(etl STC W'^'er of tM1e motlule.Moelule of uFto a5%Fower[olerance allowetl.
PV SYSTEM DESIGN USING A SOLAREDGE INVERTERI'I SINGLE PHASE THREE PHASE 208V THREE PHASE 480V
Minimum String Length 8 10 18
(Power Optimizers(
........ ...
Maximum String Length 25 25 50
(Power Optimizers)
I.
.. .. . . erS .. ... .... .. . . .. . . ... . ..w ...
Maximum Power pel String 5250 6000 12750 W
Parallel Strings of Different Lengths
rmQ, Yes
or Orientations
...................................._.._......._._ ..................._................_........_.................................................... .........
....
It is not aimwed toi»ix P405 wpm P3oofP400/Peoo)P:oo in ore a
r
F v
p E
.kt` ,t3tt rvS.. w➢; t N. +k 5 f i,r } ."'$._' 'i ,v . n:4
. ' Optimize Engineering Co., LLC
P.O. Box 264•Farmville•VA 23901
Ph: 434.574.6138•E-mail: grichardpe@aol.com RECEIVED
iNSPECTIONAL SERVICES
Z915 SEP 28 P I-- 44,
Richard B. Gordon, P.E.
President
September 22, 2015
Salem Building Department
Salem, MA Re: Solar Panels Roof Structural Framing Support
To Whom It May Concern:
I hereby certify that I am a Licensed Professional Engineer in the State of Massachusetts. Please note the
following conclusions regarding framing structure, roof loading, and proposed site location of installation:
1. Existing roof framing: Conventional framing is 2x6 at 30"o.c.with 6'-6" span (horizontal rafter
projection). This existing structure is definitely capable to support all of the loads that are indicated
below for this photovoltaic project.
2. Roof Loading
• 4.33 psf dead load (modules plus all mounting hardware)
• 30 psf snow live load (50 psf ground snow live load reference)
• 4.5 psf dead load roof materials
• Exposure Category B, 115 mph wind uplift live load of 19.6 psf(wind resistance)
3. Address of proposed installation: Residence of Judith Herwig, 27 Bridge Street,Salem,
Massachusetts
This installation design will be in general conformance to the manufacturer's specifications, and is in
compliance with all applicable laws, codes,and ordinances,and specifically, International Residential Code/
IRC 2009, 2011 NEC, and 2012 ICC Energy Code. The spacing and fastening of the Unirac mounting
brackets is to have a maximum of 64"o.c. span along the rail between mounting brackets and secured using
5/16" x 3 Yz" length corrosive resistant steel lag bolts. In order to evenly distribute the load across the roof
rafters,there shall be a minimum of 2 mounting brackets per rafter&min. 2" penetration of lag bolt per
bracket,which is adequate to resist all 115 mph wind live loads including wind shear. The mounting
brackets shall alternate between adjacent rafters between rail rows for better distribution of roof load.
Penetration of anchors for modules mounted within 18" of ridge and edges of roof is to be a minimum of 3".
Rails may be attached to either of two mounting holes in the L-feet. Mounting in the lower hole for a low
profile, more aesthetically pleasing installation or mount in the upper hole for a higher profile to maximize
airflow under the modules to cool them more. Slide the 3S-inch mounting bolts into the footing bolt slots.
The rails will be attached to the footings with the flange nuts.
Very truly yours,
Optimize Engineering Co., LLC 02��P jH of MgSs csc
q
-^ RICHARD B. m
GORDON
Richard B. G , P.E. ° MECHANICAL m
Massachusetts P.E. Lib nse No.49993 NO.49993
MECHANICAL ENGINEERING �Fcisre�`0 "q-
CIVIL ENGINEERING o:t_, 4
ELECTRICAL ENGINEERING �" ONAL
� 1 v
Optimize Engineering Co., LLC
P.O.Box 264•Farmville•VA 23901
Ph: 434.574.6138.E-mail: grichardpe@aol.com
Did r►�a��r ,tiS
Richard B.Gordon,P.E.
President -
August 3,2015
Salem Building Department
Salem,MA Re: Solar Panels Roof Structural Framing Support
To Whom It May Concern:
I hereby certify that I am a Licensed Professional Engineer In the State of Massachusetts. Please note the
following conclusions regarding framing structure,roof loading,and proposed site location of installation:
1. -Exlstina roof framing: Conventional framing is 2x8 at 30"o.c.with 8'span(horizontal rafter
projection). This existing structure is definitely capable to support all of the loads that are Indicated
below for this photovoltaic project after sister raftem with a 2x8 using(2)10d nails V o.c. Use of(2)
_.,.a' nz_, -. Guard DcgTM FMGDO02 screws is approved,or equal shear strength of approx.120 lb, V o.c.at areas
,,: ,ur,air.;e or nIQm4,r• where little space.is-,available only with remainder of member secured with(2)10d nails V o.c. If do
Kr:ee Wa!! uveN€," ",m,p , ,not sister4heminstall-a 2x4 @:30"o.c. knee wall over an Interior bearing wall to limit span of rafters
between supports to 7'4".
2. Roof Loading
• 4.33 psf dead load(modules plus all mounting hardware)
• 27 psf snow live load(45 psf ground snow live load reference)
• 4.5 psf dead load roof materials
Exposure Category B,115 mph wind uplift live load of 19.6 psf(wind resistance)
esi4encc ,;^• ` "�n..3. -Address of proposed installation: Residence of Judith Herwig,27 Bridge Street.Salem,
Massachusetts
- - -This Installation design will be In general conformance to the manufacturer's specifications,and is in
compliance with all applicable laws,codes,and ordinances,and specifically, International Residential Code/
IRC 2009,2011 NEC,and 2012 ICC Energy Code. The spacing and fastening of the Unirac mounting
,.. r,. -,brackets is to have a maximum of 64"o.c:span along the rail between mounting brackets and secured using
5116"x 3'/a'length corrosive resistant,steel lag bolts. In order to evenly distribute the load across the roof
rafters,there shall be a minimum of 2 mounting brackets per rafter&min.2"penetration of lag bolt per
bracket,which is adequate to resist all 115 mph wind live loads Including wind shear. The mounting
brackets shall alternate between adjacent rafters between rail rows for better distribution of roof load.
Penetration of anchors for modules mounted within 18"of ridge and edges of roof Is to be a minimum of 3".
Rails may be attached to either of two mounting holes In the L-feet Mounting in the lower hole for a low
profile,more aesthetically pleasing installation or mount in the upper hole for a higher profile to maximize
airflow under the modules to cool them more.Slide the 3,1111-Inch mounting bolts Into the footing bolt slots.
The rails will be attached to the footings with the Flange nuts.
Very truly yours,
Optimize Engineering Co.,LLC
Richard B.GakIddif P.E. - R ��ytH oFM,yss9
Massachusetts P.E.Lic se No.48993 01 cyc
MECHANICAL ENGINEERING F RICHARDS. m
CIVIL ENGINEERING o GORDON y
ELECTRICAL ENGINEERING U MECHANICAL y
NO,49993
�F'/STEaE°. .
/ONAL °`
,
INSTALLATION OF NEW ROOF MOUNTED BRIDGE ST•
2.08kW PV SYSTEM
27 BRIDGE ST
SALEM, MA 01970
VICINITY MAP .SITE
SCALE NTSI Pro'rrTRIA oessxlxnwr
HERWIG,J DI H
56
PLOW AJCrexs
27 BRIDGE IT
INEUM.MA D1920
SHEETINDEX
O "ITIONOcs, 'a s. nEs PV-1 COVER SHEET W/SITE INFO&NOTES
,R E . 1 E E PV-2 ROOF PLAN W/MODULE LOCATIONS rRovoseoz aexw
11 a o R R ' HEAP PV-3 ELECTRICAL 3 LINE DIAGRAM souR WHEN
O AC H O - E o O nror noro
IF:R o i.' ., �R«n
rocs H.ao*LE.a I.c< R TxrwH-T OI., ENE, .00E .er o
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t—nl mH
IR fECiOiHE'VA�I.MC
nHI1ALI IMENIfl CLIP DE AIL cr_rnes nPV MODULE ATTACHMENT ON ASPI IALi SI11NGLC-RCOF (1lIEIGHT Fft01A GROUND LEVEL TO PEAK OF ft00F
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. P SALEM,MA 019]O
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PEON E. PROPOSED
SOIAP RSSYSTEM STEM
. Drawn Inlorrnauun
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ox.ew swLLr¢w_I,.L�muAcuv.wr<EwnR nE '
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ARRAY I S
PIIIMHINO SCI IF.IJIILE EQI SCI IF1]IILE
r ® v nnim U9 ❑ N,., .z :mis 4A
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OTHER OBSTRUCTIONS
n
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oTH Al xIeu . T.rtrtL
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Charles P Bonicker
TN"Hoelin ,g K A
NC o,,TINT Su1'.
MOUNTED :211 Al un wood ECI Wn.NJ 0]/19
UNCEIt SC MODVLf
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.r)1,L0'I.£Si E39ECTE0 AMBIENT TEMPERANRE B.15E0 IXI ENSTNG 1/2 NM CF0£
ASHflPE NINIMUM MEAN EhMEME CRY MUB ¢C/21G`/ D. 10
TEMPERFNRE IF A. RAE LCCATW ACSiT SIMILAR TD OMIT 125A MAN BREAKER 27 BRIDGE ST
III LCCASW LOWEST EXPECTED AMBIENT METER ,25A BUSBAR [Fir
$ALE.,MA 019T0
2)HICJIEST CMIINVWS pMBIFNi TFNPERANRE CASFLON S RtE N.AlT IACTUM Y CRY RULRMDPERANRE ECP A ARAE LCCATCN MDST SIMILAR TD F1 LD AIM 6GA NSTPLLAPM LCCATDN. NIGMES!CDNTNUWS TEMP- CISdMINICE EN 0 Al
LACJ 2CA N'f5 PRUPOSEB 2.ORNW
GRGUPED M/ IN ]CA VNINusEC PRELMETE. SOLAR SYSTEM
3)IN....NNCAMEM:TA 2R DESIGN I BREAKER LEAD CENTER 'q^.ECT METER
MINFERANRES W NOT EXCEED 47'C IN TIE UNITED V✓L2BlE3Jµ D
STATES(PAW®PINGS,CA IS AA1C). Eqt LESS MAN bHp.s�dIR 2401 �0. - O CNLwNLq IIIfGINIilI Un
9 OJRA EN I-CAPoi Y1NC C.NACMR IN A •L •_I u —
"NE-MOUNTED%NUT CONDUIT AT MERIT Co'ABOVE i S --- ♦� NM'"NI'.O'IL n/r
RENE AND US INS ME OUTDOOR DESIGN TEMPERATURE f----��__ J I o�vv.Nm
GE cI L OR LESS(Au DE UNITED STATES), E' J 1 a M `'� 0 I nF n:[oe1. MC
I` _ ��I.
r.
1,)PnOTOVCLTAC POWER snTEMS SNALL RE ��..� f :411
PERwTTED TO GPERATE wnx NNcxwuoc0 r___ ____ _ _ Cj ane..• B .OeeO _ B _ E D�Gj 006 j sI OfOrMIl",:
PNOTCVdrAIC SOURCE AND OUTPUT C MIT AS PER • 1
N::N.,.NS ..•• 10uLs„1N.IWM ,.Lsy!
N EYJSTING MAIN BREAKER LOP➢ SOUPRE 0 SW APED ___\__J `m+u+aixe,vAn. e
5. µL EWIPMENT INSTALLED WTOWRS SMALL HAVE _I_ CENTER INSULFTEO UNE TAP$ �PN: 0222N PN: 0222AB ���������J necwltsu:to roNn..,N
.IL.NA:1 RATNG. NSTALLED ON MAIN FEEDERS
IT,690.GI
REQUIREDLd TW LDUC PMPPCITY PERNSTRRIG
[NE ANIL CTal3 (15.CD"I.CS),-M.T5A Durlmll�. w+1rovA
A*D RN,DERATET AMPAPIY NeDONIE INYl ,CNI
NABIENT TEMP: 55'C TEMP CERAMIC FASTER: JR UILA_I'll 1111.11 SA)
R EE Y CEMTNG
(0` B)00 ]0.1OA HPv.NO. 9tcOl
]D 90A 18.75A.THEREFORE ARE SIZE IS VATIC 1p
TOT C REWIRED CONCUMNA AMPACITY
a.DOP,25 11.6DA ..'1
wG R10 lE0 MP an
A,LENT Ti. ]DC TEMP OEP TIC. .D
ACE\ �A ZINC S]CSC. N/A I 0 C:. I MEREFCRE C MRI SIZf IS!ACID 0
�Try
.
TOTAL iuvER C TER URRENT 14MA I .,O Iry
wAGF.1.2S-O.WA 1101 .un
20A WERGURREIIT PROIEOTCN IS vwD - "wllpjlj
_it
Optimize Engineering Co., LLC
P.O. Box 264•Farmville•VA 23901
G) Ph: 434.574.6138.E-mail: grichardpe@aol.com
Richard B. Gordon, P.E.
President
August 3, 2015
Salem Building Department
Salem, MA Re: Solar Panels Roof Structural Framing Support
To Whom It May Concern:
I hereby certify that I am a Licensed Professional Engineer in the State of Massachusetts. Please note the
following conclusions regarding framing structure, roof loading,and proposed site location of installation:
1. Existing roof framing: Conventional framing is 2x6 at 30"o.c.with 8'span(horizontal rafter
projection). This existing structure is definitely capable to support all of the loads that are indicated
below for this photovoltaic project after sister rafters with a 2x6 using(2)10d nails V o.c. Use of(2)
Guard DogTM FMGDO02 screws is approved,or equal shear strength of approx. 120 lb, V o.c.at areas
where little space is available only with remainder of member secured with (2)10d nails V o.c. If do
not sister,then install a 20 @ 30"o.c. knee wall over an interior bearing wall to limit span of rafters
between supports to V-6".
2. Roof Loading
• 4.33 psf dead load(modules plus all mounting hardware)
• 27 psf snow live load (45 psf ground snow live load reference)
• 4.5 psf dead load roof materials
• Exposure Category B, 115 mph wind uplift live load of 19.6 psf(wind resistance)
3. Address of proposed installation: Residence of Judith Herwig, 27 Bridge Street,Salem,
Massachusetts
This installation design will be in general conformance to the manufacturer's specifications, and is in
compliance with all applicable laws,codes,and ordinances,and specifically, International Residential Code/
IRC 2009,2011 NEC,and 2012 ICC Energy Code. The spacing and fastening of the Unirac mounting
brackets is to have a maximum of 64"o.c.span along the rail between mounting brackets and secured using
5/16"x 3 Yz' length corrosive resistant steel lag bolts. In order to evenly distribute the load across the roof
rafters,there shall be a minimum of 2 mounting brackets per rafter&min. 2" penetration of lag bolt per
bracket,which is adequate to resist all 115 mph wind live loads including wind shear. The mounting
brackets shall alternate between adjacent rafters between rail rows for better distribution of roof load.
Penetration of anchors for modules mounted within 18" of ridge and edges of roof is to be a minimum of 3".
Rails may be attached to either of two mounting holes in the L-feet. Mounting in the lower hole for a low
profile, more aesthetically pleasing installation or mount in the upper hole for a higher profile to maximize
airflow under the modules to cool them more. Slide the 3B-inch mounting bolts into the footing bolt slots.
The rails will be attached to the footings with the Flange nuts.
Very truly yours,
Optimize Engineering Co., LnLC
O��EP�TH OF Mq S
S
Richard B.49btfron, P.P. _ 41
so
Massachusetts P.E. Li ense No.49993 o cHAnos yc
MECHANICAL ENGINEERING 4'.CHAq°Q y
CIVIL ENGINEERING NO 49993 y
ELECTRICAL ENGINEERING PF
OPUS=AL ENG��Q-
w
I
INSTALLATION OF NEW ROOF MOUNTED BRIDGE ST• -
2.08 kW PV SYSTEM
27 BRIDGE SIT '
SALEM, MA 01970
IssuxlFOHRG.E
f^ �F
VICINITY MAP SITE "` .r...ununrnCx
SCALE:NTSI Pro9ct TlUE.
T Jx ERWNIG,J aDe EL
Prn]W FAIirxes:
x]BRIDGE ST
SALE M.MR 01970
SHEETINDEX
IHEDEI FEIs I. PV-1 COVER SHEET W/SITE INFO&NOTES or"� l Ti0"
"" s c I . °- M a= PV-2 ROOF PLAN WI MODULE LOCATIONS PaaPOSeD noaww
II
p' s C s C - SOtgR SYSTEM
°1 tr T - °°c PV-3 ELECTRICAL 3 LINE DIAGRAM
o eol a I !
G C 9 4I' I5GiFI1
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EGA 11 EP It
O"ETRE
M 4 E bur PAR
q 141"GO1.ill-HE 1FH=HE ro a C - CCIeIRuc EN11 ma - rc� m
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THIEF 45AR
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XOFOYOLcIII ,1THI1x
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OR
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— /
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—_ y__ _ pp Fx nNG RPFIen .11FO PEAR YCIGM-
—nYI FII^RIp.Iil'I[IL orR
I FAIRS TO IHE IIFRIS
LtNNCLIP DE[Al�OR'
LILTllI rOxsaEcs>vu npVMOOULEATTACHMENT ON APPI IALT Al TINGLE ROOF nNEGGItTFROMGROUND LEVEL TO REM OF ROOD
TOT
TO
ADUALrP,.oD EFIrlasprls ISSuatll Revisions
v1:e5[IIIVT:01l�n
Pro ecl iilix
HEPWIG.NDITH
IRinu rFfa un4usbJ50
Pmiocl Address:
UD 27 BRIDGE ST
. P SALEM,MA 01970
0 DLE.,TRIP,
FROM RON fINCK PflOPO5E02.04KW
SOIAq BVSiEM
■ On n I f
nc Iv s'Pn ormeno�R sszau
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ass.
tI TH THE
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ljlIFILP
IX 5>rt 'R. E IE
<J ROOFTOP SOLAR INSTALLATION ONLY PV ASSAY WILL NOT EXTEND BEYOND THE EXISTING BUILDING ENVELOPE
ARRAY SCHEDYILE SYNHOLLEGENU Pi LROBING SCI IEDULE EQUIPMEN I SCHEDULE
.n JU ❑ o Nls.tal
OTHER 065T RUG IONS
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I TIRETT,ILATRIAITSEll �-'SOLAR
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Charles P Borricker
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MOMPLI 2211 Nlomvm A RC IW.0 NJ 01119
INTSJIu5M!11DLAPIGROUFW I:J+Y y Solar
MEET,SOLAR MODULE
0 / £E 690. J
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GEPCI PECEPTMA£ Prolecl AJtlless'.
t 5F BREArypt
1.)LONLSi EYPECiEO FMBIENT TEMPERATURE BASED ON F/JSTNG IA�2 NM CA&f I
ASHRFE MINIMUM MEAN LOCATION
TRY MBULBOST !.1.11 �,{ 2101 10
1FIIPERFNRE FOR
,De. L LOCAP ON MOST AMIENA TO UETER 1 1 12SA MAN BflEPNER 2]BRID GE ST
SiALLAR g1 LOCAT p1. LOWEST EXPECTED PMBIFIIi PETER 125A BU 58Wt I
1EaP=_urc SALEM,MA 019]0
2.)HIGHEST COMMUOUS AMBIENT TEMPERATURE BASED �{
ON ASHNAL HIGHEST MONTH 2%CRY BULB N' ppLpSLL BOA DI:1 THIS
TTHPERFNRE NOR ASXRAE LOCATUN MOST SIMILAR TO v'
STALUIILN LOLATUL HIGHEST LPu0NVW5 TEMP _ OISCOrMECT NSFD W/
xDA NSES PgOPOSED 2 OBkW
GROUPED W,MAIN 30A JNEUSEO
PROOVCTON SDIAR SYSTEM
?)40Os FSHPAE NOT EAUITALS 2R IN DESIGN l CRISPIER LO Cf X1fN gSCWNECi METER
lE1APERA NOES Ld NOT EXCEED 97'0 IN 1HE UNITEDININTINR
STATES(PALN�flINGS,CA 15 NIC). EOq LE55 1HAN <OV 10 300'/ lE r � D plflWiO9010nllfllrun
9 CURRENT-CATRYxO CCNOUCTIIRS IN A > N
RIXK-MOUNTED SUBMIT COMOUT AT LEAST DS ABOVE 1S r r —n♦� Iw>N NrN Fr[
gCGF IJIp LONG THE OUNDDR CEBGN TEMPEPANRE - F����-" LJ J
OE.]'C Be LBSS(NL OE VIOTED STATES). L�.(� fu}) J e M e �� 0 I C,,GH v
PHOTO WIT SO PON'II2 SYSTEM$SHAO.BE _ r J
RNM G TB OPERATE 1TH UNGRax0F0 __ ____ _ Cj ��p. - B .eve.. - B - E v Q =� - '_- s slclf.INmrmi allaN
PHOTiOVOL�TAIC BOUNCE Me OUTPUT CIRCUIT IS PER �------���'r JL�1�� 1 \ 1 yr
'0 y SOU PAE D SCU APE 0 1 J lFm NON
N.-. - e...• TOwLsrs i.Ob4.
EASPNG MAIN BREAHER LOAD 1 __ Tno.LrniruU, x¢ e
S)ALL EOUIPMFNT INSTALLED WTWLYiS SHALL HAW I CENTER Ix9JLATEO LINE TAPS PN-. D22M Pe: 0222RB L,_______-J rnrllut's Us¢ Tarra_rn
n—A:t BAHU G. = HI TA.ONMaN fEE➢FRs
h'F.0 A",IT
N 1N1.
REOUIRE➢CCN O UCTOR AMPACITY PER I STRING
[NE SPARO>(o) (15G.N.2)I—teosn nu011a,r rvwA
AOCTT.DERAIEO AMPAa TY 11YPUusscfM I'llb
FMBIENT TEMP: 35L.MAP BERATING FACTOR. .76
YT
RACLW Y CERAMIC
-2 LCC: 1.00 1 A S[61
(TIM 76>100 30..OA V RP.v.NN. $NO CI
3D.AQA I B.I5A,THEREFORE ARE SIZE IS V,WD --allal So
TOTAL AG RECAIREC GTNDJGTTR AN-11
n.00A T25_ITNOA ( All aUTI4
ASS#0 DERATEO APPAOTY !
AMBIENT TEMP, 30C TAMP OEfl TI 1.0 Z Wr_
RACEIFY DEPATNG 3 CCC N/A /-
eon1T aG. T1^t
♦0 0.THEREFORE C MIRE51]E IS UD
��SOLAR
TOTAL INVERTED CURRENT Ii.CTP ROI[C IIO
<.00A 1.CA_ ].
-->20A OVEflGLTRENT Pfl01ECTM IS'ITT r.'uJ r"'J
eM lei w.Ni rX ASS L-
v �: