BLDE-23-000293 PLANS i
LEGEND AND ABBREVIATIONS TABLE OF CONTENTS
PAGE# DESCRIPTION
SE
IBC/IEBC), SOLAR MODULES L S PV-1.0 COVER SHEET
STALLATION SERVICE ENTRANCE
a $ - -I- PV-2.0 SITE PLAN
PV-3.0 LAYOUT
Kv-IF)) MAIN PANEL
120 PV-4.0 ELECTRICAL
SNR MOUNT PV-5.0 SIGNAGE
4RE SOLIDLY SP SUB-PANEL SNR MOUNT&SKIRT
140 PV LOAD CENTER CHIMNEY
10
SUNRUN METER
DI ATTIC VENT
I, OR TYPE II Li, DEDICATED PV METER = FLUSH ATTIC VENT
o PVC PIPE VENT Y3 '
INVERTER(S) 0 METAL PIPE VENT
D ALL el 22 T-VENTAC 2-9...
2(1).
1(G). AC DISCONNECTS) CP SATELLITE DISH
0 DC DISCONNECT(S) FIRE SETBACKS
0.8(b)]. CB IQ COMBINER BOX ,i HARDSCAPE
L-......1-
I2(B)(2). -PL- PROPERTY LINE
NDARY ARE I- -1 INTERIOR EQUIPMENT
JN INITIATION L_ _I SHOWN AS DASHED SCALE: NTS
A AMPERE SUAfUA
AC ALTERNATING CURRENT
AFCI ARC FAULT CIRCUIT INTERRUPTER
AZIM AZIMUTH #180120
COMP COMPOSITION
DC DIRECT
CURRENT
EXISTING
695 MYLES STANDISH BLVD,TAUNTON,MA,02780-7331
PHONE 0
(E) FAx o
ESS ENERGY STORAGE SYSTEM CUSTOMER RESIDENCE:
INM
EXT EXTERIOR JULIE SHIGEKUNI
A INTERIOR
MAG MAGNETIC 17 STATION AVE,YARMOUTH,
MSP MAIN SERVICE PANEL MA,02664
(N) NEW
NTS NOT TO SCALE TEL.(917)771 4531
OC ON CENTER YARM71-4531 000038
PREFAB PRE-FABRICATED NUMBER:
PSF POUNDS PER SQUARE FOOT PROJECT NUM
SHIG
PV PHOTOVOLTAIC 223R-01 (415)580-6920 ex3
RSD RAPID SHUTDOWN DEVICE DESIGNER:
TL TRANSFORMERLESS JOSHUA LYONS
TYP TYPICAL
V VOLTS SHEET
W WATTS COVER SHEET
REV NAME DATE COMMENTS
11111111111111111111111111 REV:Al 6/30/2022
1111111111111111111111MPAGE Pv_1 ,Q
ARRAY TRUE MAG PV AREA
PITCH AZIM AZIM (SQFT)
4'
AR-01 35° 329° 343° 144.9
e� ° AR-02 35° 149° 163° 108.6
A' AR-03 34° 149° 163° 217.3
a , AR-04 42° 149° 163° 362.1
°
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sunrun
S0131k)9\-#8\--
(N)ARRAY AR-03
- #180120
695 MYLES STANDISH BLVD.TAUNTON,MA,02790-7331
PHONED
FAX 0
Q" CUSTOMER RESIDENCE:
JULIE SHIGEKUNI
17 STATION AVE,YARMOUTH,
MA, 02664
0-\___ TEL.(917)771-4531
APN:YARM-000061-000038
(N)CONDUIT RUN PROJECT NUMBER:
(ENTRENCHED-60 FT) 223R-017SHIG
DESIGNER: (415)580-6920 ex3
rC T C-1 JOSHUA LYONS
--��E-^]J SHEET
SITE PLAN
REV:Al 6/30/2022
PAGE PV_2.O
ATTACHMENT INFORMATION DESIGN CRITERIA
Max Landscape Max Landscape Max Portrait Max Portrait Configuration MAX DISTRIBUTED LOAD:3 PSF
OC Spacing Overhang OC Spacing Overhang SNOW LOAD: 30 PSF
WIND SPEED:
TRACK ON 4'-8" 1'- 10" 2'-4" 1'-2" STAGGERED 140 MPH 3-SEC GUST.
)C-00436 S.S.LAG SCREWS:
ON COMP,SEE4'-8" 1'- 10" 2'-4" 1'-2" STAGGERED 5/16": 2.5" MIN EMBEDMENT
6 STRUCTURAL NOTES:
• INSTALLERS SHALL NOTIFY
ON COMP,SEE 4'-8" 1'- 10" 2'-4" 1'-2" STAGGERED ENGINEER OF ANY POTENTIAL
6 STRUCTURAL ISSUES
ON COMP,SEE -4" 2'- 1" 2'-8" 1'-4" STAGGERED OBSERVED PRIOR TO
6 PROCEEDING W/
INSTALLATION.
3/16"= 1-0" • IF ARRAY (EXCLUDING SKIRT)
IS WITHIN 12"BOUNDARY
REGION OF ANY ROOF PLANE
7" rr 11" EDGES (EXCEPT VALLEYS),
22'-4" k1k THEN ATTACHMENTS NEED
TO BE ADDED AND OVERHANG
I-6" REDUCED WITHIN THE 12"
O I BOUNDARY REGION ONLY AS
FOLLOWS:
—4'-8"TYP 1 •• ALLOWABLE ATTACHMENT
SPACING INDICATED ON
C) I o C) fl a C7 6'-7" PLANS TO BE REDUCED BY
1 50%
•• ALLOWABLE OVERHANG
O INDICATED ON PLANS TO BE
C) C) C) C) 1/5TH OF ALLOWABLE
ATTACHMENT SPACING
2'-7" INDICATED ON PLANS
sunrun
:: 1/8"= 1-0" #180120
695 MYLES STANDISH BLVD,TAUNTON,MA,02780-7331
PHONED
FAX 0
CUSTOMER RESIDENCE:
I: invi JULIE SHIGEKUNI
Mili: _ APN:MI 17 STATION AVE.YARMOUTH,
MA,02664
5'-4"TYP. - _ TEL.(917)771-4531
_ YARM 000061-000038
NMI.
PROJECT NUMBER:
STRUCT :.` 223R-017SHIG
ONLFA�jH SS 415 580-6920 ex3
( oFM4
DESIGNER: ( )VINCENT s� JOSHUA LYONS
MWUMVANEZACIVIL SHEET
LAYOUT
. •/• ERF N.:
'- 'ter ONAIE�G`� REV:Al 6/30/2022
L Z-5" PAGE
PV-3.0
(N)HEAVY DUTY
SAFETY SWITCH
DC DISCONNECT JUNCTION BOX PV MODULES
2t 2a OR EQUIVALENT 1a JA SOLAR:JAM60S17-325/MR
/ (10)MODULES
+ $// OPTIMIZERS WIRED IN:
(1)SERIES OF(10)OPTIMIZERS
LOGIES: SQUARE D �f
HU361RB SOLAREDGE POWER OPTIMIZERS
TERING 3R,30A,600VDC P370
(N)HEAVY DUTY
SAFETY SWITCH
DC DISCONNECT JUNCTION BOX PV MODULES
2t oR EQUIVALENT 1a JA SOLAR:JAM60S17-325/MR
2a // (10)MODULES
/ OPTIMIZERS WIRED IN:
ONNECT (1)SERIES OF(10)OPTIMIZERS
JTDOWN
SQUARE DL
)LOGIES: HU361RB SOLAREDGE POWER OPTIMIZERS
3R,30A,600VDC P370
TERING
JUNCTION BOX PV MODULES
2b OR EQUIVALENT 9 JA SOLAR:JAM60S17-325/MR
/ (26)MODULES
+ // OPTIMIZERS WIRED IN:
- (1)SERIES OF(12)OPTIMIZERS
--- I I (1)SERIES OF(14)OPTIMIZERS
UUTDOONNECT
WN L SOLAREDGE POWER OPTIMIZERS
TDOWN P370
sunrun
#180120
695 MYLES STANDISH BLVD,TAUNTON,MA,02780-7331
PHONE 0
FAX 0
CUSTOMER RESIDENCE:
JULIE SHIGEKUNI
17 STATION AVE,YARMOUTH,
MA,02664
TEL.(917)771-4531
APN:YARM-000061-000038
PROJECT NUMBER:
223R-017SHIG
DESIGNER: (415)580-6920 ex3
JOSHUA LYONS
SHEET
ELECTRICAL
REV:Al 6/30/2022
PAGE PV-4.0
TOVO LTAIC NOTES AND SPECIFICATIONS:
•SIGNS AND LABELS SHALL MEET THE REQUIREMENTS OF THE NEC 2020 ARTICLE
110.21(B),UNLESS SPECIFIC INSTRUCTIONS ARE REQUIRED BY SECTION 690,OR
IF REQUESTED BY THE LOCAL AHJ.
•SIGNS AND LABELS SHALL ADEQUATELY WARN OF HAZARDS USING EFFECTIVE
ISCONNECT WORDS,COLORS AND SYMBOLS.
•LABELS SHALL BE PERMANENTLY AFFIXED TO THE EQUIPMENT OR WIRING
METHOD AND SHALL NOT BE HAND WRITTEN.
ECT •LABEL SHALL BE OF SUFFICIENT DURABILITY TO WITHSTAND THE ENVIRONMENT
FC.60.11.3 IFC 605.11.1.4 NEC INVOLVED.
,90.13(8)&NEC 690.14C.2.) •SIGNS AND LABELS SHALL COMPLY WITH ANSI Z535.4-2011,PRODUCT SAFETY
SIGNS AND LABELS,UNLESS OTHERWISE SPECIFIED.
•DO NOT COVER EXISTING MANUFACTURER LABELS.
•HOTOVOLTAIC DC DISCONNECT
SYSTEM VOLTAGE: 480 VDC
\TION:
i),DC DISCONNECT(S).
S):NEC 2020:690.53
CAUTIONS
■
MULTIPLE SOURCES OF POWER
- SOLAR PANELS ON ROOF A
sunrun
SIN PANEL DC
DISCONNECT #180120
695 MYLES STANDISH BLVD,TAUNTON,MA,02780-7331
PHONE 0
SERVICE
II 'II I FAX
FAX 0
ENTRANCE CUSTOMER RESIDENCE:
1.11__
� JULIE SHIGEKUNI
•'T 17 STATION AVE,YARMOUTH,
AC -- SMART
L PV LOAD MA, 02664
ISCONNECT METER CENTER TEL.(917)771-4531
APN:YARM-000061-000038
L INVERTERS PROJECT NUMBER:
(EXT) 223R-017SHIG
DESIGNER: (415)580-6920 ex3
17 STATION AVE, YARMOUTH, MA, 02664 JOSHUA LYONS
SHEET
SIGNAGE
PER CODE(S):NEC 2020:705.10,710.10
REV:Al 6/30/2022
PAGE PV-5.0
SCOPE OF WORK GENERAL NOTES
•SYSTEM SIZE: 14950W DC, 12000W AC •ALL WORK SHALL COMPLY WITH MA 9th Ed. CMR 780(2015 I
• MODULES: (46)JA SOLAR: JAM60S17-325/MR MUNICIPAL CODE,AND ALL MANUFACTURERS' LISTINGS AN[
• INVERTERS: (1) SOLAREDGE TECHNOLOGIES: INSTRUCTIONS.
SE6000H-USSN, (1) SOLAREDGE TECHNOLOGIES: • PHOTOVOLTAIC SYSTEM WILL COMPLY WITH NEC 2020.
SE6000H-USSN
•RACKING: SNAPNRACK RLU; RL UNIVERSAL, SPEEDSEAL • ELECTRICAL SYSTEM GROUNDING WILL COMPLY WITH NE
TRACK ON COMP, SEE DETAIL SNR-DC-00436
•TRENCHING REQUIRED: DC WIRE TO BE TRENCHED 60 FT • PHOTOVOLTAIC SYSTEM IS UNGROUNDED. NO CONDUCTO
IN DIRT MATERIAL. GROUNDED IN THE INVERTER. SYSTEM COMPLIES WITH 690
• MODULES CONFORM TO AND ARE LISTED UNDER UL 1703.
• INVERTER CONFORMS TO AND IS LISTED UNDER UL 1741.
• RACKING CONFORMS TO AND IS LISTED UNDER UL 2703.
•SNAPNRACK RACKING SYSTEMS, IN COMBINATION WITH TY
MODULES,ARE CLASS A FIRE RATED.
• RAPID SHUTDOWN REQUIREMENTS MET WHEN INVERTERS
CONDUCTORS ARE WITHIN ARRAY BOUNDARIES PER NEC 69
•CONSTRUCTION FOREMAN TO PLACE CONDUIT RUN PER 69
•ARRAY DC CONDUCTORS ARE SIZED FOR DERATED CURRE
• 10.23 AMPS MODULE SHORT CIRCUIT CURRENT.
• 15.98 AMPS DERATED SHORT CIRCUIT CURRENT[690.8(a)&
• PV INSTALLATION COMPLIES WITH THE NEC 2017 ARTICLE 6!
CONTROLLED CONDUCTORS LOCATED INSIDE THE ARRAY BC
LIMITED TO 80 VOLTS WITHIN 30 SECOND OF A RAPID SHUTD(
VICINITY MAP
17 Station Ave,
Yarmouth,MA 02664 '9land4ye
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Family Table --
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Bass Ri r r,irr
SITE PLAN -SCALE=1/16"=1'-0"
L
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(E) RESIDENCE —\
(N)ARRAY AR-01
(N)ARRAY AR-02
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ROOF INFO FRAMING INFO
Name Type Height Type Max OC Detail
Span Spacing
AR-01 COMP SHINGLE-RLU 1-Story 2X10 RAFTERS 8'-6" 28" RL UNIVERSAL, SPEEDS/COMP, SEE DETAIL SN
AR-02 COMP SHINGLE-RLU 1-Story 2X10 RAFTERS 8'-6" 28" RL UNIVERSAL,SPEEDSEAL TR/
DETAIL SNR-DC-C
AR-03 COMP SHINGLE-RLU 1-Story 2X10 RAFTERS 6'- 10" 28" RL UNIVERSAL,SPEEDSEAL TR)
DETAIL SNR-DC-C
AR-04 COMP SHINGLE-RLU 1-Story TRUE CUT 2X6 RAFTERS 14'-2" 32" RL UNIVERSAL,SPEEDSEAL TRb
DETAIL SNR-DC-(
D1 -AR-01 -SCALE: 3/16"= 1'-0" D2-AR-02-SCA
AZIM:329° AZIM:149°
PITCH: 35° PITCH: 35°
1'-6"
}
3'-3" 3'-3" 3._3.,
0
0 0 ❑I
0 0
-4'-8"TYP
0 0 a 0 0 0 0 6'-7" 5'-11
I H O O O O O
6"
J— 6"
1 i
.1-,, 22'-4"
L10" -7"
D3-AR-03-SCALE: 3/16"= 1'-0" D4-AR-04-SCAI
AZIM:149° AZIM:149°
PITCH: 34° PITCH: 34°
4'-3" '
1'-6"
0
❑ ❑ 0 0 0 ❑
-4'-8"TYP—'
❑ 0 0 ❑ 0 0 -
16'-7"
9'-11"
❑ ❑ ❑ 0 0 0
O O O O O O •
1-5"-4—. 22'4" „,--,_ L8" 9"_ t—'I
6" -1'-6"
-
SEE SITE PLAN FOR NORTH ARROW
120/240 VAC
SINGLE PHASE SOLAREDGE TECI
SERVICE NOTE:TOTAL PV BACKFEED=63A SE6000H-USSN WI
METER#: USED FOR INTERCONNECTION REVENUE GRADE
< (-_—_)
EVERSOURCE 2288083 CALCULATIONS 6000 WATT INVER
UTILITY
GRID ___— `r
SUPPLY SIDE TAP
(N)100A PV LOAD LOAD RATED DC C
CENTER WITH AFCI,RAPID
COMPLIANT
C I EXISTING 200A (N)LOCKABLEBLADE TYPE (N)MA SMART SOLAREDGE TECI
MAIN BREAKER FUSED AC UTILITY SE6000H-USSN WI
1 —
DISCONNECT REVENUE REVENUE GRADE
METER 6000 WATT INVER'
EXISTING
Q o Q
< 200A MAIN ci----a=o-• O —
i ./'` _ .__.
PANEL
FACILITY '---
70A FUSES
LOADS GROUT D SQUARE D 240V METER SOCKET 35A BREAKER(A) LOAD RATED DC D
D223NRB 100A CONTINUOUS 35A BREAKER(B) WITH AFCI,RAPID:
3R, 100A UTILITY SIDE OF CIRCUIT COMPLIANT
120/240VAC CONNECTS TO TOP LUGS-
(LINE AT TOP LOAD AT BOTTOM)
CONDUIT SCHEDULE
# CONDUIT CONDUCTOR NEUTRAL GROUND
la NONE (2)10 AWG PV WIRE NONE (1)10 AWG BARE COPPER
lb NONE (4)10 AWG PV WIRE NONE (1)10 AWG BARE COPPER
2a 3/4"EMT OR EQUIV. (2)10 AWG THHN/THWN-2 NONE (1) 10 AWG THHN/THWN-2
2b 3/4"EMT OR EQUIV. (4)10 AWG THHN/THWN-2 NONE (1) 10 AWG THHN/THWN-2
1"SCH 40 PVC
2T (BELOW GROUND) (4)10 AWG THHN/THWN-2 NONE (1)10 AWG THHN/THWN-2
1"SCH 80 PVC
(ABOVE GROUND)
3 3/4"EMT OR EQUIV. (2)8 AWG THHN/THWN-2 (1)10 AWG THHN/THWN-2 (1)8 AWG THHN/THWN-2
4 3/4"EMT OR EQUIV. (2)4 AWG THHN/THWN-2 (1)8 AWG THHN/THWN-2 (1)8 AWG THHN/THWN-2
5 3/4"EMT OR EQUIV. (2)6 AWG THHN/THWN-2 (1)8 AWG THHN/THWN-2 (1)8 AWG THHN/THWN-2
MODULE CHARACTERISTICS P370 OPTIMIZER CHARACTERISTICS:
JA SOLAR:JAM60S17-325/MR: 325 W MIN INPUT VOLTAGE: 8 VDC
OPEN CIRCUIT VOLTAGE: 40.87 V MAX INPUT VOLTAGE: 60 VDC
MAX POWER VOLTAGE: 33.97 V MAX INPUT TSC: 11 ADC
SHORT CIRCUIT CURRENT: 10.23 A MAX OUTPUT CURRENT: 15 ADC
SYSTEM CHARACTERISTICS-INVERTER 1 SYSTEM CHARACTERISTICS-INVERTER 2
SYSTEM SIZE: 6500 W SYSTEM SIZE: 8450 W
SYSTEM OPEN CIRCUIT VOLTAGE: 10 V SYSTEM OPEN CIRCUIT VOLTAGE: 14 V
SYSTEM OPERATING VOLTAGE: 380 V SYSTEM OPERATING VOLTAGE: 380 V
MAX ALLOWABLE DC VOLTAGE: 480 V MAX ALLOWABLE DC VOLTAGE: 480 V
SYSTEM OPERATING CURRENT: 17.11 A SYSTEM OPERATING CURRENT: 22.24 A
SYSTEM SHORT CIRCUIT CURRENT: 30 A SYSTEM SHORT CIRCUIT CURRENT: 30 A
INVERTER 1 P
ELECTRICAL SHOCK HAZARD PHOTOVOLTAIC DC DISCONNECT
MAXIMUM SYSTEM VOLTAGE: 480 VDC
TERMINALS ON LINE AND LOAD DC
SIDES MAY BE ENERGIZED IN LABEL LOCATION: LABEL LO,
THE OPEN POSITION INVERTER(S),DC DISCONNECT(S). DC DISCO
PER CODE(S):NEC 2020:690.53 (PER COD
LABEL LOCATION: 690.15,NE
INVERTER(S), AC/DC DISCONNECT(S),
AC COMBINER PANEL(IPER ODE S):NEC 2020E 901AP13B)(CABLE). WARNING: PHOTOVOLTAIC INVERTEf
POWER SOURCE
LABEL LOCATION: MAXIM
INTERIOR AND EXTERIOR DC CONDUIT EVERY 10 FT,
AT EACH TURN,ABOVE AND BELOW PENETRATIONS,
ON EVERY JB/PULL BOX CONTAINING DC CIRCUITS. LABEL L(
PER CODE(S):NEC 2020:690.31(D)(2),IFC 2012: INVERTE
DUAL POWER SUPPLY 605.11.1.4 PER COC
SOURCES: UTILITY GRID
AND PV SOLAR ELECTRIC
SYSTEM
LABEL LOCATION:
UTILITY SERVICE METER AND MAIN
SERVICE PANEL.
PER CODE(S):NEC 2020:705.12(C)
RAPID SHUTDOWN SWITCH
POWER SOURCE OUTPUT CONNECTION FOR SOLAR PV SYSTEM
DO NOT RELOCATE THIS
OVERCURRENT DEVICE LABEL LOCATION:
INSTALLED WITHIN 3'OF RAPID SHUT DOWN
LABEL LOCATION: SWITCH PER CODE(S):NEC 2020:690.56(C)(2),IFC
ADJACENT TO PV BREAKER AND ESS 2012:605.11.1,IFC 2018: 1204.5.3
OCPD(IF APPLICABLE).
PER CODE(S):NEC 2020:
4
705.12(8)(3)(2)
UippD
PHOTOVOLTAIC SYSTEM
COMBINER PANELimnit
o
DO NOT ADD LOADS
LABEL LOCATION:
PHOTOVOLTAIC AC COMBINER(IF
APPLICABLE). 3" TURN RAPID SHUTDOWN
PERERCODE(S):NEC 2020:705.12(D)(2)(3)(c)
SWITCH TO THE"OFF" SOLAR ELECTRIC
IMPANELS
POSITION TO SHUT DOWN
PV SYSTEM DISCONNECT PV SYSTEM AND REDUCE
MAXIMUM AC OPERATING CURRENT: 50.00 AMPS SHOCK HAZARD IN THE
ARRAY. ■
NOMINAL OPERATING AC VOLTAGE: 240 VAC
LABEL LOCATION:
AC DISCONNECT(S),PHOTOVOLTAIC SYSTEM POINT OF
INTERCONNECTION.
PER CODE(S):NEC 2020:690.54 LABEL LOCATION:
ON OR NO MORE THAT 1 M(3 FT)FROM THE SERVICE
DISCONNECTING MEANS TO WHICH THE PV SYSTEMS
ARE CONNECTED.
PER CODE(S):NEC 2020:690.56(C)
1 1
=T EV projects@evengineersnet.com 276-220-0064
lima ENGINEERS http://www.evengineersnet.com
30/06/2022
RE:Structural Certification for Installation of Residential Solar
JULIE SHIGEKUNI:17 STATION AVE,YARMOUTH,MA,02664
Attn:To Whom It May Concern
This Letter is for the existing roof framing which supports the new PV modules as well as the attachment of the
PV system to existing roof framing. From the field observation report,the roof is made of Composite shingle
roofing over roof plywood supported by 2X6 Rafters at 32 inches.The slope of the roof was approximated to be
42 degrees.
After review of the field observation data and based on our structural capacity calculation,the existing roof
framing has been determined to be adequate to support the imposed loads without structural upgrades.
Contractor shall verify that existing framing is consistent with the described above before install.Should they
find any discrepancies,a written approval from SEOR is mandatory before proceeding with install.Capacity
calculations were done in accordance with applicable building codes.
Design Criteria
Code 2015 IRC(ASCE 7-10)-CMR 780 9th Ed
Risk category II Wind Load (component and Cladding)
Roof Dead Load Dr 10 psf V 140 mph
PV Dead Load DPV 3 psf Exposure C
Roof Live Load Lr 20 psf
Ground Snow S 30 psf
If you have any questions on the above, please do not hesitate to call.
STRUCT . .
ONL
Sincerely, sii 0 OFMgSSgC'
O� 9
VINCENT "N
Vincent Mwumvaneza, P.E. 0 MWUMVANEZA N
EV Engineering, LLC NICIVIL
�
projects@evengineersnet.com °q;:. Ecco c,��
http://www.evengineersnet.com '• /0NAlOC.1
1/1
=- EV projects@evengineersnet.com 276-220-0064
MINIM ENGINEERS http://www.evengineersnet.com
Structural Letter for PV Installation
30/06/2022
Job Address: 17STA"tIONME
YARMOUTH,M1,J0 0 1-
Job Name: JUU E:.SHI6EKVNI
Job Number: 22063015
Scope of Work
This Letter is for the existing roof framing which supports the new PV modules as well as the attachment of the
PV system to existing roof framing.All PV mounting equipment shall be designed and installed per
manufacturer's approved installation specifications.
Table of Content
Sheet
1 Cover
2 Attachment checks
3 Snow and Roof Framing Check
4 Seismic Check and Scope of work
Engineering Calculations Summary
Code 20/5 IRC(ASCE 7-10)-CMR 7869th Ed
Risk category II
Roof Dead Load Dr 10 psf
PV Dead Load DPV 3 psf
Roof Live Load Lr 20 psf
Ground Snow S 30 psf
Wind Load (component and Cladding)
V 140 mph
Exposure C
References
NDS for Wood Construction
STRUCT C ,
ONL ���`tNOFMgSSA
O
cy
Sincerely, 4' VINCENT aN
o MWUMVANEZA
CIVIL N
Vincent Mwumvaneza, P.E.
.N�
EV Engineering, LLC :
- EV projects@evengineersnet.com 276-220-0064
mom ENGINEERS http://www.evengineersnet.com
Wind Load Cont.
Risk Category= II ASCE 7-10 Table 1.5-1
Wind Speed (3s gust),V= ,` 0;'mph ASCE 7-10 Figure 26.5-1A
Roughness= C ASCE 7-10 Sec 26.7.2
Exposure= C ASCE 7-10 Sec 26.7.3
Topographic Factor, KZT= 1.00 ASCE 7-10 Sec 26.8.2
Pitch= 410-Degrees
Adjustment Factor,A= 1.21 ASCE 7-10 Figure 30.5-1
a= 3.20 ft ASCE 7-10 Figure 30.5-1
Where a:10%of least horizontal dimension or 0.4h,whichever is smaller,but not less than 4%of least
horizontal dimension or 3ft(0.9m)
Uplift(0.6W) Zone 1(psf) Zone 2(psf) Zone 3(psf)
Pnet30= -29.3 -35.3 -35.3 Figure 30.5-1
Pnet=0.6 x X x KZT x Pnet30)= 21.29 25.64 25.64 Equation 30.5-1
Downpressure(0.6W) Zone 1(psf) Zone 2(psf) Zone 3(psf)
Pnet30= 32.1 32.1 32.1 Figure 30.5-1
Pnet=0.6 x X x KZT x Pnet30)= 23.28 23.28 23.28 Equation 30.5-1
Rafter Attachments:0.6D+0.6W(CD=1.6)
Connection Check
Attachement max.spacing= 5.3 ft
205 lbs/in
Lag Screw Penetration 2.5 in
Allowable Capacity= 512.5
0.6D+0.6W Dpv+0.6W
Zone Trib Width Area(ft) Uplift(lbs) Down(lbs)
1 5.3 14.6 284.0 383.1
2 5.3 14.6 347.4 383.1
3 3 8.3 196.7 216.8
Max= 347.4 < 512.5
CONNECTION 15 OK
1. Pv seismic dead weight is negligible to result in significant seismic uplift,therefore the wind uplift
governs
2. Embedment is measured from the top of the framing member to the tapered tip of a lag screw.
Embedment in sheading or other material does not count.
1/1
mom V EV projects@evengineersnet.com 276-220-0064
ENGINEERS http://www.evengineersnet.com
Vertical Load Resisting System Design
Roof Framing
Pg= 30 psf ASCE 7-10,Section 7.2 pf= 21 psf
Ce= 0.9 ASCE 7-10,Table 7-2 pfmin.= 25.0 psf
Ct= 1.1 ASCE 7-10,Table 7-3 p5= 25 psf 31.1 plf
Is= 1.0 ASCE 7-10,Table 1.5-1 CS 0.467
Max Length, L= 14.17 ft
Tributary Width,WT= 32 in
Dr= 10 psf 26.67 plf
PvDL= 3 psf 8 plf
Load Case:DL+0.6W
Pnet+PPvcos(8)+Pot= 96.8 plf
Max Moment, Mu= 1192 lb-ft Conservatively
Pv max Shear 383.1 lbs
Max Shear,V„=wL/2+Pv Point Load = 629 lbs
Load Case:DL+0.75(0.6W+S))
0.75(Pnet+Ps)+PP„cos(8)+PDL= 103 plf
MdoWn= 1263 lb-ft
Mallowable=Sx x Fb' (wind)= 2093 lb-ft > 1263 lb-ft OK
Load Case:DL+S
Ps+PPVcos(8)+PDL= 64 plf
MdoWn= 785 lb-ft
Mallowable=Sx x Fb' (wind)= 1504 lb-ft > 785 lb-ft OK
Max Shear,V„=wL/2+Pv Point Load = 726 lbs
Member Capacity
Design Value CL CF C; Cr Adjusted Value
Fb= 875 psi 1.0 1.3 1.0 1.15 1308 psi
F„= 135 psi N/A N/A 1.0 N/A 135 psi
E= 1400000 psi N/A N/A 1.0 N/A 1400000 psi
Depth,d= 6 in
Width, b= 2 in
Cross-Sectonal Area,A= 12 in2
Moment of Inertia, In= 36 in4
Section Modulus,Sx.= 12 in3
Allowable Moment, Mail=Fb'SXx= 1308.1 lb-ft DCR=M„/Mali= 0.57 < 1 Satisfactory
Allowable Shear,Vail=2/3Fv'A= 1080.0 lb DCR=Vu/Vaii= 0.67 < 1 Satisfactory
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Siesmic Loads Check
Roof Dead Load 10 psf
%or Roof with Pv 42%
Dpv and Racking 3 psf
Averarage Total Dead Load 11.2 psf
Increase in Dead Load 5.0% OK
The increase in seismic Dead weight as a result of the solar system is less than 10%of the existing structure and
therefore no further seismic analysis is required.
Limits of Scope of Work and Liability
We have based our structural capacity determination on information in pictures and a drawing set titled PV plans-
JULIE SHIGEKUNI.The analysis was according to applicable building codes, professional engineering and design
experience,opinions and judgments.The calculations produced for this structure's assessment are only for the
proposed solar panel installation referenced in the stamped plan set and were made according to generally
recognized structural analysis standards and procedures.
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