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HomeMy WebLinkAboutCERTIFICATION LETTER1/8
BARuN CORP
February 9, 2022
RE:
Project Address:
Design Criteria:
CERTIFICATION LETTER
ROBIN DEBIE RESIDENCE
6601 KENWOOD ROAD
FORT PIERCE, FL 34951
Applicable Codes = 2020 FLBC/FLEBC 7th Edition, 2020 FLRC 7th Edition, 2018 IEBC/IBC/IRC, ASCE 7-16 and 2018 NDS
Risk Category = II
Wind Speed = 160 mph, Exposure Category C, Partially/Fully Enclosed Method
Ground Snow Load = 0 psf
Roof 1-7: 2 x 4 @ 24" OC, Roof DL = 7 psf, Roof LL/SL = 18 psf (Non-PV), Roof LL/SL = 0 psf (PV)
Roof 8&9 : 2 x 4 @ 24" OC, Roof DL = 7 psf, Roof LL/SL = 20 psf (Non-PV), Roof LL/SL = 0 psf (PV)
To Whom It May Concern,
A job site survey of the existing framing system of the address indicated above was performed . All structural evaluation is based on the
site inspection observations and the design criteria listed above.
Existing roof structural framing has been reviewed for additional loading due to installation of PV Solar System on the roof. The
structural review applies to the sections of roof that is directly supporting the solar PV system.
Based on this evaluation, I certify that the alteration to the existing structure by installation of the PV system, with blocking upgrades in
Roofs 3&5 (Hip), meets the prescriptive compliance requirements of the applicable existing building and/or new building provisions
adopted/referenced above.
Additionally, the PV module assembly including attachment hardware has been reviewed to be in accordance with the manufacturer's
specifications and to meet and/or exceed the requirements set forth by the referenced codes.
Sincerely,
S. M. M e h d i Digitally signed by S. M.
Mehdi Zomorodian
Zomorodian Date: 1022.02.0921:51:53
06'00'
Barun Corp I Design and Engineering 1610.202.4506 1 chrisk@barun-corp.com I www.barun-corp.com
2/8
BARUN CORP A
ROBIN DEBIE RESIDENCE, 6601 KENWOOD ROAD, FORT PIERCE, FL 34951
c•
MOUNTING PLANE
ROOF PITCH
(deg.)
RESULT
GOVERNING ANALYSIS
Roof 1-7
26°
OK
IEBC 5% IMPACT CHECK
Roof 8&9
3°
OK
IEBC 5% IMPACT CHECK
�� STANDOFF
HARDWARE EVALUATION FOR WIND UPLIFT
MOUNTING PLANE
UPLIFT DCR
Roof 1-7
36.4%
Roof 8&9
88.0%
Barun Corp I Design and Engineering 1610.202.4506 1 chrisk@barun-corp.com I www.barun-corp.com
3/8
PV SYSTEM . LOAD
PV module weight 2.50 psf
Hardware assembly weight 0.50 psf
Total PV System Dead Load PV-DL = 3.00 psf
Elm
Existing Roofing Material
Comp Roof 1 layers
2.50 psf
Underlayment
0.50 psf
Plywood Sheathing
1.50 psf
Framing Weight
2 x 4 @ 24 in. O.C.
0.73 psf
Vaulted ceiling
No
0.00 psf
Miscellaneous
1.50 psf
Total Roof Dead Load R-DL =
6.73 psf
REDUCED ROOF LIVE LOAD��WXPRESSIION
VALUE
Roof Live Load
Lo
20.00 psf
Member Tributary Area
At
< 200 sf
Roof 1-7 Pitch
6/12 or 26'
Trubutary Area Reduction
Rl
1.00
Slope Roof Reduction
Rz
0.90
Reduced Roof Live Load
Lr = Lo (Rj (1112) =
18.00 psf
SNOW LOAD
VALUE
Ground Snow Load
pg = 0.00
Effective Roof Slope
26'
Snow Importance Factor
IS = 1.00
Snow Exposure Factor
Ce = 1.00
Snow Thermal Factor
Ct = 1.10
Minimum Flat Roof Snow Load
Pf-min = 0.00
Flat Roof Snow Load
pf = 0.00 psf
Barun Corp I Design and Engineering 1610.202.4506 1 chrisk@barun-corp.com I www.barun-corp.com
MMMMM
BARUN CORP
IEBC 5% IMPACT CHECK
Roof 1-7
ROBIN DEBIE RESIDENCE, 6601 KENWOOD ROAD, FORT PIERCE, FL 34951
WITH
I
Roof Dead Load (DL) =
EXISTING
6.73
PV PANEL
9.73
Roof Live Load (Lr) =
18.00
0.00
Roof Snow Load (SL) =
0.00
0.00
(DL + Lr)/Cd =
19.78
10.81
(DL + SL)/Cd =
5.85
8.46
Maximum Gravity Load =
19.78
10.81
Load Increase (%) _-45.36% OK
IEBC Provision : 2018
psf
psf
psf
psf
psf
psf
The requirements of section 806.2 of 2018 IEBC are met and the structure is permitted to remain unaltered.
Barun Corp I Design and Engineering 1610.202.4506 1 chrisk@barun-corp.com I www.barun-corp.com
5/8
IF g
ainfal •
Ultimate Wind Speed (mph) =
160
Roof Pitch (deg.) =
26'
Risk Category =
II
Roof Type =
Hip
Exposure Category =
C
I<d =
0.85
Mean Roof Height (ft) =
20
Kzt =
1
Solar Array Dead Load (psf) =
3.00
Kz =
0.90
DESIGN
•
Wind Velocity Press. (qh) = 0.00256*Kz*Kzt*Kd*Ke*VZ =
50.24 psf
a (ft) =
3.00
Array Edge Factor (yE) =
1.50
Solar Array Pressure Eq. Factor (ya) =
0.60
Allowable Load =
982.50 Ibs
S. Pine, 2.5" lag embedment
Max. X - Spacing (ft) (Zone 1)
4.00
Effective Wind Area (ft')
6.80
Max. Y - Spacing (ft) (Zone 1)
1.70
Max. X - Spacing (ft) (Zone 2e & 2r)
4.00
Effective Wind Area (ft')
6.80
Max. Y - Spacing (ft) (Zone 2e & 2r)
1.70
Max. X - Spacing (ft) (Zone 3)
4.00
Effective Wind Area (ft')
6.80
Max. Y - Spacing (ft) (Zone 3)
1.70
ROOFZONE GCp (-) UPLIFT
1 -1.40
UPLIFT PRESSURE (psf) PULLOUTFORCE
-36.36 247.27
2e & 2r -2.00
-52.64 357.96
3 -2.00
-52.64 357.96
* Wind calculation is based on ASCE 7-16, 29.4 - C&C, LC#7: 0.61) + 0.6W used.
-4.0
•1.8
3.6
A4
3.2
-3.a
-xa
-Z6
t7 24
. r -21
-20
e� •1.6
C 7 •1.4
43
c. 46
44
�i U
+o.z
-44
-46
tt n
20
1 10 20 50 '40 200 5001000
(ao (09) (0) (451 M9 (06) {4661i9291
Effective Wind Area, 9 2(M2)
1yy���G!
�GIIrI
V010
ca
3
PLAN
FIGURE 30.3-2G Components and Cladding [h < 60 ft (h < 18.3 m)]: External Pressure Coefficients, (GCP), for Enclosed and Partially
Enclosed Buildings -Hip Roofs, 20° <0 < 27° (Roof and Overhang)
Barun Corp I Design and Engineering 1610.202.4506 1 chrisk@barun-corp.com I www.barun-corp.com
6/8
PV SYSTEM . LOAD
PV module weight 2.50 psf
Hardware assembly weight 0.50 psf
Total PV System Dead Load PV-DL = 3.00 psf
Elm
Existing Roofing Material
TPO Roof 1 layers
2.50 psf
Underlayment
0.50 psf
Plywood Sheathing
1.50 psf
Framing Weight
2 x 4 @ 24 in. O.C.
0.73 psf
Vaulted ceiling
No
0.00 psf
Miscellaneous
1.50 psf
Total Roof Dead Load R-DL =
6.73 psf
REDUCED ROOF LIVE LOAD��WXPRESSIION
VALUE
Roof Live Load
Lo
20.00 psf
Member Tributary Area
At
< 200 sf
Roof 8&9 Pitch
1/12 or 3°
Trubutary Area Reduction
Rl
1.00
Slope Roof Reduction
Rz
1.00
Reduced Roof Live Load
Lr = Lo (Rj (1112) =
20.00 psf
SNOW LOAD
VALUE
Ground Snow Load
pg = 0.00
Effective Roof Slope
3°
Snow Importance Factor
IS = 1.00
Snow Exposure Factor
Ce = 1.00
Snow Thermal Factor
Ct = 1.10
Minimum Flat Roof Snow Load
pf-min = 0.00
Flat Roof Snow Load
pf = 0.00 psf
Barun Corp I Design and Engineering 1610.202.4506 1 chrisk@barun-corp.com I www.barun-corp.com
7/8
BARUN CORP
IEBC 5% •ACT CHECK
F- Roof 8&9
ROBIN DEBIE RESIDENCE, 6601 KENWOOD ROAD, FORT PIERCE, FL 34951
WITH
I
Roof Dead Load (DL) =
EXISTING
6.73
PV PANEL
9.73
Roof Live Load (Lr) =
20.00
0.00
Roof Snow Load (SL) =
0.00
0.00
(DL + Lr)/Cd =
21.38
10.81
(DL + SL)/Cd =
5.85
8.46
Maximum Gravity Load =
21.38
10.81
Load Increase (%) _-49.45% OK
IEBC Provision : 2018
psf
psf
psf
psf
psf
psf
The requirements of section 806.2 of 2018 IEBC are met and the structure is permitted to remain unaltered.
Barun Corp I Design and Engineering 1610.202.4506 1 chrisk@barun-corp.com I www.barun-corp.com
ILULlaig
•
Ultimate Wind Speed (mph) =
160
Roof Pitch (deg.) =
3°
Risk Category =
II
Roof Type =
Flat
Exposure Category =
C
I<d =
0.85
Mean Roof Height (ft) =
20
Kzt =
1
Solar Array Dead Load (psf) =
3.00
Kz =
0.90
DESIGN
•
Wind Velocity Press. (qh) = 0.00256*Kz*Kzt*Kd*Ke*VZ =
50.24 psf
a (ft) =
3.00
Array Edge Factor (yE) =
1.50
Solar Array Pressure Eq. Factor (ya) =
0.60
Allowable Load =
982.50 Ibs
S. Pine, 2.5" lag embedment
Max. X - Spacing (ft) (Zone 1')
6.00
Effective Wind Area (ft2)
10.20
Max. Y - Spacing (ft) (Zone V)
1.70
Max. X - Spacing (ft) (Zone 1 & 2)
6.00
Effective Wind Area (ft2)
10.20
Max. Y - Spacing (ft) (Zone 1 & 2)
1.70
Max. X - Spacing (ft) (Zone 3)
6.00
Effective Wind Area (ft2)
10.20
Max. Y - Spacing (ft) (Zone 3)
1.70
ROOFZONE GCp (-) UPLIFT
1' -0.90
UPLIFT PRESSURE (psf) PULLOUTFORCE
-22.62 230.72
1 & 2 -2.30
-60.50 617.06
3 -3.19
-84.76 864.53
* Wind calculation is based on ASCE 7-16, 29.4 - C&C, LC#7: 0.6D + 0.6W used.
-40
is
•3.6
-3A
-31
-3.0
-2.8
-2.b
•2.4
2.2
-2.0
EH
•s.a
-i.6
-1.4
.
-16
-0,-�.a
6
14
w 0
+0.2
+OA
+0_6
+U.8
+10
10 100
11111111110
11111111110
1 ©o 0
1 10 20 50 1DO 200 50010DO
[Ofl tag) (19) (46) (93) (18.6) (46.5)(929)
Effective Wind Atea, ft 2(m')
3 c
r O
UP
I Q l l o
I I I I
I I 0.6h
0.6h1
3 L J 3
D
PLAN
FIGURE 30.3-2A Components and Cladding [h < 60 ft (h < 18.3 m)]: External Pressure Coefficients, (GC„), for Enclosed and Partially
Enclosed Buildings -Gable Roofs, 9 < 7°
Barun Corp I Design and Engineering 1610.202.4506 1 chrisk@barun-corp.com I www.barun-corp.com
INSTALLATION NOTES:
1. CUT (N) BLOCKING TO FIT TIGHT
BETWEEN (E) TRUSSES AND
KEEP FLUSH TO ROOF
SHEATHING. ENSURE THERE
ARE NO GAPS BETWEEN
MEMBERS.
2. INSTALL (N) BLOCKING WITH
TWO (N) A34 CLIPS, ONE AT
EACH END OF (N) BLOCKING.
3. NAIL (N) A34 CLIPS TO (E)
TRUSSES WITH (8) (N) 8D (0.131')
X 1.5" NAILS, FILLING ALL HOLES.
ENSURE ALL NAILS ARE
LOCATED AWAY FROM EDGE OF
MEMBERS TO AVOID SPLITTING
WOOD.
• INSTALL (N) BLOCKING ONLY
BELOW STANDOFF LOCATIONS.
�I NEW BLOCKING SIDE VIEW
(N) STANDOFF SHALL LAC
DIRECTLY INTO (N) BLOCKINC
(N) 2x4 DF#2 OR 5PF#2 BLOCKING
(E) JACK TRUSS OK KAFTf
(BLOCKING NOT REQUIRED DOWN HEF
(N) 5IMP50N A34 CLIPS (2 PER BLOCK)
N1 (8) (N) 8d (O. 13 1 ") X 1- 1 /2" NAILS PER CLIP
(E) SHORTEST BOX TRUSS (BLOCKIN
REQUIRED FOR ALL LOCATIONS WHEF
LAGGING OCCUR:
SCHEMATIC DEPICTION OF MP THAT REQUIRES UPGRADES NTS
i2'�
D I NEW BLOCKING SIDE VIEW
155
NG
PREMISE OWNER:
JOB NUMBER:
UCSGKII'I IUN:
CONFIDENTIAL -THE INFORMATION HEREIN
SHEET NUMBER:
BARON CORP
BLOCKING UPGRADE
EENf1TOf:ANTAINED ONEEXLL NOT BEUSEDFOCTHE
BENEFIT OF ANYONE EXCEPT BARON CORP,
DESIGNED BY:
MOUNTING SYSTEM:
NOR SHALL IT BE DISCLOSED IN WHOLE
OR IN PART TO OTHERS OUTSIDE THE
SU O
E02 N Atwater Dr.
CHECKED BY:
PAGE NAME:
RECIPIENT'S ORGANIZATION, EXCEPT IN
Malvern, PA 1 9355
APPROVED BY
MODULES:
CONNECTION WITH THE SALE AND USE OF
Phone: (6 10) 202-4506
STRUCTURAL UPGRADES
THE RESPECTIVE BARON CORD
EQUIPMENT, WITHOUT THE WRITTEN
web51tC: www.barun-corp.com
INVERTER:
PERMISSION OF BARUN CORP.
V004