|
Sht # 2 of 7
<br />Note to Building Official:
<br />Based upon a review of the proposed plans I am confident that the
<br />existing roof framing system is capable of safely supporting the additional
<br />loads caused by the new solar photovoltaic energy system. I have reviewed
<br />the existing structural system and based upon the field measurements and
<br />drawings provided by the contractor, it appears that the roof can support its
<br />required live load. Attached in this package are several calculations showing
<br />that the roof members can support the additional weight of the solar array.
<br />Furthermore, an analysis of the solar array's support for wind forces and a
<br />seismic analysis of the existing structure are also included.
<br />(Assume max truss span = 20 ft.)
<br />Trusses
<br />truss
<br />Note to Building Official:
<br />Based upon a review of the proposed plans and information, the
<br />existing roof framing system is capable of safely supporting the additional
<br />loads caused by the new solar photovoltaic energy system. The contractor
<br />shall field verify that the existing roof structure is in its original permited
<br />condition and verify that it can support the normal code required roof live
<br />loads. Attached in this package are several calculations showing that the roof
<br />members can support the additional weight of the solar array.
<br />Furthermore, an analysis of the solar array's support for wind forces and a
<br />seismic analysis of the existing structure are also included.
<br />W DL + LL
<br />R1 R218.25'
<br />Rafters
<br />rafter
<br />Total load on rafter = 60 plf x 20 ft. = 1,200 lbs
<br />w = 30 psf x 2 ft. = 60 plf
<br />Total load on rafter = 60 plf x 7.83 ft. = 470 lbs
<br />w = 30 psf x 2 ft. = 60 plf
<br />Check Existing 2x4 Roof Rafters @ 24" O.C.: *
<br />Total load on rafter = 80.1 plf x 18.25 ft. = 1,462 lbs
<br />w = 30 psf x 2.67 ft. = 80.1 plf
<br />Check Existing 2x12 Roof Rafters @ 32" O.C.: *
<br />Total load on joists = 40 plf x 21 ft. = 840 lbs
<br />w = 30 psf x 1.33 ft. = 40 plf
<br />Check Existing Roof Joists @ 16" O.C.:
<br />*Note: Contractor to Field Verify Framing
<br />20173570 Quick Solar Systems Kevin Costello 15049 Residence Date: September 16, 2017
<br /> 9924 Universal Boulevard #224406 Orlando, FL 32819 Tel:1.310.464.1804
<br /> Email: loydwmartin@gmail.com www.loydwmartin.com
<br />Loyd W. Martin Professional Engineer, Inc.
<br />20182670 Divine Power USA Ronald Howard Residence Date: September 7, 201820183631 Solar Survey Pro Itzel Lopez Residence Date: November 21, 201820183702 Precis Solar Barbara Cervera Residence Date: November 30, 201820183831 ESD 18795 Pacheco Residence Date: December 12, 201820183831 ESD 18795 Pacheco Residence Date: January 23, 201920183831 ESD 18795 Pacheco Residence Date: January 23, 20192019292 Axis Solar Design Stephen Skjelvik Residence Date: February 5, 20192019489 Axis Solar Design Ecoforce 6 Peachtree Date: February 22, 20192019489 Axis Solar Design Ecoforce 6 Peachtree Date: March 12, 201920192865 Axis Solar Design Jacobs 18 Tanglewood Date: August 29, 201920193009 Axis Solar Design Applebaum Date: September 11, 201920193922 Axis Solar Design Fitzpatrick Residence Date: November 7, 20192020053 Axis Solar Ryerson Residence Date: November 9, 20192020126 Axis Solar Mark Reynolds Residence Date: January 16, 20202020131 Axis Solar Law Residence Date: January 16, 20202020268 Axis Solar Yragui Ecoforce Residence Date: January 31, 20202020279 Penguin Solar Dan Wampole Residence Date: February 3, 20202020450 Penguin Solar Louis Sebulsky Residence Date: February 21, 20202020473 Penguin Solar Laura Caballero Residence Date: February 24, 20202020602 Penguin Solar Kevin Dodd Residence Date: March 5, 20202020640 Penguin Solar Thomas Vasquez Residence Date: March 11, 20202020678 ESD 20119 Barile Residence Date: March 16, 20202020678 ESD 20119 Barile Residence Date: March 16, 20202020780 ESD 20136 Gutierrez Residence Date: April 1, 20202020780 ESD 20136 Gutierrez Residence Date: April 1, 20202020844 ESD 20164 Azim Residence Date: April 14, 20202020844 ESD 20164 Azim Residence Date: April 14, 202020201052 ESD 20206 Sarkissian Residence Date: May 15, 202020201088 ESD 20216 Yocum Residence Date: May 22, 202020201096 UniverCity Solar Rebecca Baxter Residence Date: May 26, 202020201102 Papke Designs Olvera Residence Date: May 27, 202020201100 HPM Solar Oscar Residence Date: May 27, 202020201110 ilum Solar Enrique Escontrias Residence Date: May 28, 202020201119 ilum Solar Aaron Gonzalez Residence Date: May 29, 202020201119 ilum Solar Aaron Gonzalez Residence Date: June 9, 202020201286 ilum Solar David Harski Residence Date: June 18, 202020201408 ilum Solar Antonio Escarzaga Residence Date: June 30, 202020201438 ilum Solar Thomas Aucoin Residence Date: July 2, 202020201437 ilum Solar Heliezer Espinoza Residence Date: July 2, 202020201626 ilum Solar Josh TobarHanavan Residence Date: July 25, 202020201626 ilum Solar Josh TobarHanavan Residence Date: July 25, 202020201643 Grid Alt IE Enrique Munoz Residence Date: July 28, 202020201667 UniverCity Solar Jenny Swanson Residence Date: July 30, 202020201674 Sunrise Solar Jose Munoz Residence Date: July 31, 202020201696 ACS Workman Residence Date: August 3, 202020201694 ACS Sing Residence Date: August 3, 202020201691 SunLectric Randy & Lynn Reeves Residence Date: August 3, 202020201689 New Power Joel Garcia Residence Date: August 3, 202020201704 Solar Journey Nisal Samarasena Residence Date: August 4, 202020201724 Grid Alt IE Efren Salgado Residence Date: August 5, 202020201723 Grid Alt IE Sandra West Residence Date: August 5, 202020201722 HPM Solar Xavier Monge Residence Date: August 5, 202020201722 HPM Solar Xavier Monge Residence Date: August 5, 202020201718 ilum Solar Mejia Emerson Residence Date: August 5, 202020201806 ilum Solar Justice Lloyd Residence Date: August 13, 202020201804 ilum Solar Joshua Gould Residence Date: August 13, 202020201803 ilum Solar Lloyd Harmon Residence Date: August 13, 202020201958 ilum Solar Deane Martinez Residence Date: August 27, 202020202114 ilum Solar Mike Rich Residence Date: September 10, 202020202159 ilum Solar Norman Allen Residence Date: September 13, 202020202158 ilum Solar Paul Kiehn Residence Date: September 13, 202020202666 ilum Solar Yvonne Quinones Residence Date: October 16, 202020202762 ilum Solar Andre James Residence Date: October 21, 202020203084 ilum Solar Christine Quilon Residence Date: October 21, 202020203189 ilum Solar Michael Ireland Residence Date: November 12, 202020203252 ilum Solar Viorato Residence Date: November 13, 20202021072 Ilum Solar Cory Hoffa Residence Date: January 12, 20212021-284 Ilum Solar Henry Verduzco Residence Date: January 12, 20212021-284 Ilum Solar Henry Verduzco Residence Date: January 25, 20212021-285 Ilum Solar Andrew Hollihan Residence Date: January 25, 20212021-428 Solar Journey Eddie Joseph Residence Date: February 6, 20212021-679 Precis Solar Tyrone Hudson Residence Date: February 26, 20212021-680 Precis Solar David Garibaldi Residence Date: February 26, 20212021-1059 Precis Solar Susan Anderson Residence Date: March 31, 20212021-1063 Precis Solar John Evancoe Residence Date: March 31, 20212021-1187 Precis Solar Luis Hutchins Residence Date: April 9, 20212021-2156 Ilum Solar Athena Dejarme Residence Date: June 11, 20212021-2649 Ilum Solar Teresa Gonzales Residence Date: July 9, 20212021-2651 Ilum Solar Karyn McQueen Residence Date: July 9, 20212021-3042 Ilum Solar Bixi Howe Residence Date: August 2, 20212021-4665 Ilum Solar Jerry Vestal Residence Date: October 27, 20212021-4665 Ilum Solar Jerrry Vestal Residence Date: October 27, 20212022-2274 Ilum Solar Gissella Maximo Hernandez Residence Date: May 27, 20222022-3929 Santa Barbara Solar Glenn Veneracion Residence Date: September 28, 20222022-3947 Axis Solar Karen Tom Hume Residence Date: September 29, 20222022-4080 Green Road Solar Robert Owens Residence Date: October 6, 20222022-4447 Precis Solar Michael Telles Residence Date: October 28, 20222022-4542 ESD 22-809 Duane Unzicker Residence Date: November 3, 20222022-4762 ESD 22-982 Adrian Campa Residence Date: November 15, 20222022-4944 ESD 22-1008 Rene Rivas Residence Date: November 30, 20222023-133 Penguin Marc Winger Residence Date: January 11, 20232023-134 Penguin David Wilhelm Residence Date: January 11, 20232023-163 ESD 23-013 Thalia Kirschwehm Residence Date: January 12, 20232023-241 ESD 23-029 Christian Almendares Residence Date: January 18, 20232023-522 ESD 23-070 Rigo Garcia Residence Date: February 2, 20232023-741 ESD 23-124 Jose Alberto Jimenez Residence Date: February 14, 20232023-908 Devil Dog Energy Fidel Lopez Residence Date: February 21, 2023
<br />Exp. 3-31-19
<br />No. C58724 NITRAMW.DYO
<br />REGISTEREDPROFESSIONALENGINEER
<br />C
<br />V
<br />L
<br />FOETATS
<br />ALIFORNIAICIL
<br />-25
<br />2023-1120 ESD 23-157 Aleisha Andreasen Residence Date: February 27, 20232023-1120 ESD 23-157 Aleisha Andreasen Residence Date: February 28, 20232023-1154 LA Solar Jose Naranjo Residence Date: March 1, 20232023-3630 Axis Solar Narsa LLC Date: June 7, 2023
<br />(Assume max rafter span = 18.25 ft.)
<br />2421 N Grand Ave - 101115981 &
<br />20180415
<br />3/4/2024
|