Date |
Text |
2006-06-17 00:00:00 | BUILDING PLAN REVIEW |
| *******DENIED******* |
| ROBERT BROWN(561) 805 6652 |
| E-MAIL: [email protected] |
| |
| REVISION FOR BELL CHAMBER UPLIFT TEST TO |
| JUSTIFY A BASE SHEET FASTENER PATTERN |
| DIFFERENT TO THE SUBMITTED PRODUCT |
| APPROVAL. |
| |
| FBC = FLORIDA BUILDING CODE 2004 |
| FBC*= FLORIDA BUILD'G CODE (CITY AMEND) |
| F.S.= FLORIDA (STATE) STATUTE |
| |
| 1) FBC 1609.1WIND LOADS.THE HERNACKI |
| ENGINEERING TEST REPORT LETTER DATED |
| 5/31/06 STATES THAT THE CALCULATED |
| UPLIFT PRESSURES, WHICH MUST BE RESISTED |
| BY THE ROOF COVERING APPLIED TO THIS |
| BUILDING, ARE: |
| ZONE 1 (FIELD) UPLIFT= 61.3 PSF |
| ZONE 2 (EDGE) UPLIFT = 75.4 PSF |
| ZONE 3 (CORNERS) UPLIFT = 75.4 PSF |
| |
| NO CALCULATIONS HAVE BEEN SUBMITTED TO |
| JUSTIFY THOSE PRESSURES AND THEY ARE |
| SIGNIFICANTLY LOWER THAN THE PRESSURES |
| CALCULATED BY CSM ENGINEERS AND |
| SUBMITTED FOR REVIEW AT THE TIME OF |
| PERMIT ISSUANCE.SEE COMMENT 2, BELOW. |
| |
| 2) FBC* 106.1WHO IS THE ENGINEER OF |
| RECORD FOR THIS PROJECT?THERE ARE NOW |
| TWO ENGINEERS STATING DIFFERENT REQUIRED |
| UPLIFT PRESSURES FOR THE ROOF.CSM |
| ENGINEERS, LLC WERE THE ENGINEERING FIRM |
| THAT ORIGINALLY PROVIDED THE PRESSURES |
| FOR PERMIT REVIEW.WE WILL CONTINUE TO |
| REVIEW ALL SUBMITTED DOCUMENTS ON THE |
| BASIS THAT CSM ENGINEERS IS THE ENGINEER |
| OF RECORD AND THE ROOF PRESSURE |
| CALCULATIONS SUBMITTED BY THAT ENGINEER |
| ARE THE DESIGN CRITERIA THAT THE |
| PRODUCT/INSTALLATION MUST MEET. |
| HERNACKI ENGINEERING CAN REPORT ON THE |
| THE UPLIFT RESISTANCE OF THE |
| INSTALLATION BASED ON THE RESULTS OF THE |
| UPLIFT TESTS BUT ANY |
| STATEMENTS/CALCULATIONS THAT THEY HAVE |
| FOR THE REQUIRED UPLIFT PRESSURES FOR |
| THE BUILDING CANNOT BE CONSIDERED.IF |
| THE APPLICANT, WEBSTER CONTRACTING, |
| WANTS THIS OFFICE TO REVIEW BASED ON THE |
| CALCULATIONS OF HERNACKI ENGINEERING, |
| THEY BEING THE PERMIT APPLICANT MUST |
| SUBMIT A NOTARIZED LETTER TO THAT |
| EFFECT.THE LETTER WOULD HAVE TO STATE |
| THAT CSM ENGINEERS ARE NO LONGER THE |
| ENGINEER OF RECORD AND THAT |
| RESPONSIBILITY NOW GOES TO HERNACKI |
| ENGINEERING. |
| |
| 3) FBC 1609.1WIND LOADS.THE HERNACKI |
| ENGINEERING TEST REPORT LETTER DATED |
| 5/31/06 STATES THAT THE UPLIFT TESTS |
| SHOW THAT THE INSTALLATION WITHSTANDS |
| THE REQUIRED UPLIFT PRESSURES.PLEASE |
| NOTE, THAT STATEMENT IS BASED ON |
| 'REQUIRED' UPLIFT PRESSURES THAT ARE |
| SIGNIFICANTLY LOWER THAN THOSE |
| CALCULATED BY THE ENGINEER OF RECORD AND |
| THOSE THAT CAN BE DETERMINED FROM THE |
| SIMPLIFIED METHOD IN FBC 1609.6.SEE |
| COMMENT 2, ABOVE.DEVIATION FROM THE |
| FASTENER REQUIREMENTS OF THE PRODUCT |
| APPROVAL AND ENGINEER OF RECORD |
| CALCLUATIONS HAS NOT BEEN JUSTIFIED. |
| THE BASE SHEET FASTENING FOR ZONE 1 |
| SHALL BE IN ACCORDANCE WITH THE |
| FIRESTONE PRODUCT APPROVAL NOA# |
| 05-0830.10 SHEET 33 AND FASTENING FOR |
| ZONES 2 AND 3 SHALL BE IN ACCORDANCE |
| WITH CSM ENGINEERS CALCULATION SHEET 2. |
| |
| **QUOTE PERMIT# ON ALL CORRESPONDENCE** |
| |
| END OF REVIEW COMMENTS |
| THE CODE REFERENCES GIVE ADDITIONAL INFO |
| TELEPHONE: (561) 805 6652ROBERT BROWN |
| E-MAIL: [email protected] |