| 2012-06-04 14:04:44 | RE-ROOF BUILDING REVIEW COMMENTS. |
| | 2010 FBC. |
| | |
| | 1- ARCHITECT TO CLARIFY CALCULATIONS. SUBMITTED: |
| | A) RAS 117 CALCULATIONS ARE NOT REQUIRED FOR TYPE OF |
| | ROOF SELECTED BY THE CONTRACTOR. THE CALCULATIONS THAT |
| | WERE REQUESTED WHERE THE WIND LOAD CALCULATIONS FOR THE |
| | ROOF AS REQUIRED BY SEC. 1609.1.1. DELETE THE |
| | REFERENCED NAME "RAS 117 CALCULATIONS FOR FLAT ROOF" |
| | AND REFER TO THE WIND LOAD CALCULATIONS FOR THE ROOF |
| | DECK. THE CALCULATIONS WERE REQUESTED TO VERIFY THAT |
| | THE SELECTED ROOF ASSEMBLY WILL BE ADEQUATE TO BE |
| | INSTALLED ON THE ROOF. |
| | |
| | B) CLARIFY WHERE IS TABLE R-127-1 TAKEN FROM. UNABLE TO |
| | FIND IT. SEC. 107.2.1 CITY AMENDMENTS TO FBC. |
| | |
| | C) CLARIFY ROOF ZONES. CALCULATIONS SUBMITTED SHOW ZONE |
| | 1 FOR A BUILDING HEIGHT OF 90' AND ZONE 2 FOR A |
| | BUILDING HEIGHT OF 80'. IT'S NOT CLEAR IF ZONES ARE |
| | IDENTIFYING DIFFERENT ROOFS OR IF THEY REFERING TO THE |
| | ROOF ZONES (ZONE 1, ZONE 2 AND ZONE 3) OF EACH ROOF. |
| | SEC. 107.2.1 CITY AMENDMENTS. |
| | |
| | D) CLARIFY WHAT'S CAT. R3 MF. DOES THIS STAND FOR |
| | CATEGORY RESIDENTIAL R3 MULTIFAMILY?. IF SO, THERE IS |
| | NOT AN R3 MULTIFAMILY. THIS IS AN R2 BUILDING. SEE SEC. |
| | 310 FBC 2010. |
| | |
| | E) SPECIFY THE ULTIMATE DESIGN WIND SPEED AND THE |
| | NOMINAL DESIGN WIND LOAD AS REQUIRED BY SEC. 1609.3 AND |
| | SEC. 1609.3.1. |
| | |
| | F) CLARIFY WHY THE APPROX. TRIBUTARY ROOF AREA IS 128 |
| | FT SQ FOR ZONE 1 AND 24 FT SQ FOR ZONE 2. SEC. 107.2.1 |
| | CITY AMENDMENTS. |
| | |
| | G) CLARIFY WHICH ROOF ZONE ARE THE 231.2 PSF |
| | CALCULATIONS CALCULATED FOR AND FOR WHICH ROOF. AND USE |
| | ON THE CALCULATIONS THE SAME SYMBOLS THAT ARE USED ON |
| | ASCE 7-10. CLEARLY SPECIFY THE DESIGN PRESSURES FOR |
| | EACH ROOF ZONE. SEC. 107.2.1 CITY AMENDMENTS. |
| | |
| | IF YOU HAVE ANY QUESTIONS, PLEASE CALL |
| | JULIO GOMEZ |
| | COMMERCIAL COMBINATION PLANS EXAMINER |
| | (561)805-6712 |
