Plan Review Notes
Plan Review Notes For Permit 19031079
Permit Number 19031079
Review Stop B
Sequence Number 5
Notes
Date Text
2021-02-03 14:51:58PLAN REVIEW COMMENTS
  
 5TH REVIEW: FBC FIFTH EDITION (2014)
 ROBERT MCDOUGAL, CBO
 COMMERCIAL COMBINATION PLANS EXAMINER
 (561) 805-6714
 [email protected]
  
 THE SUBMITTALS HAVE BEEN DENIED BY BUILDING
 PLEASE ADDRESS THE ITEMS NOTED BELOW:
  
 THE PREVIOUS COMMENTS HAVE NOT BEEN RESOLVED. AS STATED
 IN PREVIOUS COMMENT #1, RATIONAL ANALYSIS IS NOT
 ALLOWED TO BE USED TO INCREASE THE MAXIMUM DESIGN
 PRESSURES OF A TESTED ASSEMBLY. THE WINDOW SYSTEMS HAVE
 BEEN TESTED AND THEN SAFETY FACTORS ARE APPLIED PER FBC
 1710.
  
 1) NOT RESOLVED. ALL OF THE PREVIOUS COMMENTS HAVE BEEN
 ADDRESSED WITH ONE EXCEPTION. THE RATIONAL ANALYSIS
 CALCULATIONS THAT WERE SUBMITTED FOR THE 24" X 24" ES
 1500 FIXED WINDOWS IN ZONE 5 ARE INCORRECT. RATIONAL
 ANALYSIS CAN NOT BE USED TO INCREASE THE WIND LOAD
 PRESSURES FOR A TESTED ASSEMBLY. THE NEGATIVE AND
 POSITIVE PRESSURES OF +70, -90 PSF LISTED IN PRODUCT
 APPROVAL ARE BASED ON THE TESTING AND SAFETY FACTORS AS
 REQUIRED BY THE 2014 FBC SECTION 1710.5.
  
 A) THE WIND LOAD PRESSURES ON SHEET S.04 IN THE TABLE
 FOR AN EFFECTIVE WIND AREA LESS THAN 10 SQFT IN WALL
 ZONE 5A IS +90.3 PSF, -165.9 PSF. NOTE #5 STATES THAT
 THE VALUES IN THE TABLE ARE ULTIMATE AND CAN BE
 MULTIPLIED BY 0.6 TO DETERMINE SERVICE LOADS OR ASD.
 AFTER THESE PRESSURES ARE MULTIPLIED BY 0.6, THE
 REQUIRED WINDOW DESIGN PRESSURES ARE +54.3 PSF AND
 -99.54 PSF. SINCE THE MAXIMUM NEGATIVE DESIGN PRESSURE
 FOR THE (2' X 2') FIXED WINDOWS IN NOA NO. 17-1114.10
 IS -90 PSF, THEY DO NOT MEET THE REQUIRED PRESSURE.
  
 B) THE CALCULATIONS ARE BASED ON PART OF THE WINDOWS
 BEING LOCATED IN WALL PRESSURES ZONE 4. HOWEVER, IF ANY
 PORTION OF THE WINDOW IS LOCATED IN WALL ZONE 5, THEN
 THE ENTIRE WINDOW IS EVALUATED TO THE GREATER PRESSURES
 OF ZONE 5.
  
 2) WHEN RESUBMITTING, IT IS HELPFUL TO PROVIDE A
 RESPONSE LETTER ADDRESSING EACH ITEM ALONG WITH THE
 CITY RE-SUBMITTAL FORM.


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