| 2016-11-01 09:12:17 | ****CORRECTIONS**** |
| | |
| | SAMANTHA HILL |
| | BUILDING PLANS EXAMINER |
| | [email protected] |
| | 561-805-6724 |
| | |
| | 1. FBC 1609, FASTENING PATTERN TO RESIST WIND LOADS IS |
| | NOT CLEAR. |
| | |
| | THE SPECIFICATION STATES THAT THIS REQUIRES SIX PER |
| | LOGO LETTER, TWO PER SMALL LETTER. PLAN DOES NOT |
| | PROVIDE THE SIZE OF THE "SMALL" LETTER. IT IS DEPICTED |
| | GRAPHICALLY BUT NOT SPECIFIED, SO IT IS NOT CLEAR |
| | WHETHER OR NOT TWO ARE ADEQUATE. FOR INSTANCE, SEE THE |
| | LETTERS W, R, S, M. |
| | |
| | 2. CLARIFY SPEC FOR LOGO; PLAN SPECIFIES SIX FASTENERS, |
| | BUT DOES NOT INDICATE WHERE THEY SHOULD BE PLACED, FBC |
| | 1609. THE LOGO IS APPROXIMATELY 16 SQUARE FEET. THE |
| | LOCATION OF THE FASTENERS IS NOT CLEAR. THE WIDTH OF |
| | PARTS OF THE SIGN IS NOT CLEAR (FOR INSTANCE, THE END |
| | OF THE "F" AND THE BOTTOM END OF THE "S"). ARE THEY |
| | WIDE ENOUGH TO ACCOMMODATE A FASTENER? IF NOT, HOW WHAT |
| | IS THE MAXIMUM DIMENSION FOR THE CANTILEVER? AS THIS |
| | INSTALLTION INCLUDES SPACERS, IT APPEARS THAT THE ENDS |
| | OF THE LETTERS WILL BE CANTILEVERED (UNSUPPORTED). THE |
| | WAY THE SPEC IS WRITTEN, ALL OF THE FASTENERS CAN BE |
| | INSTALLED INTO ONE LETTER; IS THIS ADEQUATE? DUE TO THE |
| | CONFIGURATION OF THE LETTERS, A SPEC SUCH AS "EVENLY |
| | SPACED" WOULD NOT CLARIFY. A FASTENING PATTERN HAS BEEN |
| | SUGGESTED IN A PRIOR CONVERSATION. ANY SPECIFICATION |
| | WHICH IS CLEAR TO INSTALLER AND INSPECTOR WOULD BE |
| | ACCEPTED. |
| | |
| | 3. THE LOGO AND LETTER DIMENSIONS (OTHER THAN OVERALL) |
| | WERE NOT PROVIDED. AS THIS SPEC ALLOWS THE CONTRACTOR |
| | TO SELECT HIS FASTENING PATTERN AT HIS OWN JUDGEMENT, |
| | IS THERE AN EDGE DISTANCE REQUIREMENT FOR THE STUD |
| | PLACEMENT IN RELATION TO THE EDGE OF THE ALUMINUM SIGN? |
| | HOW MUCH ALUMINUM IS REQUIRED TO SUPPORT THE STUD WHEN |
| | AFFECTED BY WIND LOADS? |
| | |
| | 3. CLARIFY A HOW CONCRETE SUBSTRATE WAS DETERMINED. |
| | CITY RECORDS (WHICH MAY BE INCORRECT DUE TO THE AGE OF |
| | THIS BUILDING) SHOW THIS AS CONCRETE BLOCK. FBC 107, |
| | FBC 1609. IF THE SUBSTRATE IS NOT CONCRETE, IT IS NOT |
| | CLEAR HOW THIS WOULD AFFECT THE FASTENER (1/4" X 20 |
| | ALUMINUM STUDS 4" LONG). WILL A 4" EMBEDMENT STILL BE |
| | REQUIRED IF THE SUBSTRATE IS BLOCK? WILL ADDITIONAL |
| | FASTENERS BE REQUIRED? |
| | |
| | 4. FASTENER SPECIFIED NOT CLEAR. "ALUMINUM STUDS" - ARE |
| | THEY ALL THE SAME STRENGTH OF ALUMINUM? A GOOGLE SEARCH |
| | OF "ALUMINUM STUDS" DID NOT PROVIDE INFORMATION. |
| | WITHOUT ANCHOR SPECS (BRAND, EVALUATION REPORT), HOW |
| | CAN IT BE DETERMINED WHETHER OR NOT DERATING IS |
| | APPLICABLE, HOW CAN MINIMUM SPACING BE DETERMINED, HOW |
| | CAN THE NUMBER REQUIRED BE DETERMINED? SINCE SIZE OF |
| | LETTERS IS NOT CLEAR, IT IS NOT CLEAR WHETHER OR NOT |
| | THIS IS APPLICABLE. |
| | |
| | 5. INSTALLATION METHOD OF THE SIGN TO THE WALL IS NOT |
| | CLEAR. THE PLAN SPECIFIES AN ALUMINUM STUD THREADED |
| | INTO A FLAT ALUMINUM LETTER. GRAPHICALLY A SPACER OR |
| | NUT IS SHOWN, BUT NOT SPECIFIED. WHAT IS THIS? IF A NUT |
| | OR SPACER, WHAT IS THE SIZE OF THIS NUT OR SPACER? DOES |
| | IT MATTER? IT IS NOT CLEAR HOW FAR OFF OF THE WALL THE |
| | LETTERS ARE PROPOSED TO BE INSTALLED. IT APPEARS THAT A |
| | 1" SPACER WILL ALLOW MORE WIND BELOW THE SIGN THAN A |
| | 1/8" SPACER. |
| | |
| | 6. THE PLAN DOES NOT SPECIFY HOW DEEP THE THREAD |
| | EMBEDMENT INTO THE 1/4" THICK SIGN WILL BE. IS THERE A |
| | MINIMUM THREAD REQUIREMENT? PLANS ARE TO BE TO SCALE |
| | (SEE FBC 107, QUALITY OF PLANS). THE GRAPHIC DEPICTS |
| | THE STUD THREADED INTO THE ALUMINUM LETTER LESS THAN |
| | 1/8" (LESS THAN HALF THE THICKNESS OF THE ALUMINUM |
| | PLATE). BASED ON THE GRAPHIC PROVIDED, IT APPEARS THAT |
| | THERE WILL BE TWO OR LESS THREAD EMBEDMENT, IS THIS |
| | ADEQUATE? DOES THE NUMBER OF THREADS INTO THE LETTER |
| | MATTER? |
| | |
| | 7. HIGH STRENGTH GE SILICONE OR EQUIVALENT WAS |
| | SPECIFIED. WITHOUT A SPECIFIC PRODUCT NAME (RATHER THAN |
| | BRAND AND TYPE) AND A STRENGTH SPEC, THIS SPECIFICATION |
| | DOES NOT APPEAR ADEQUATE, FBC 1609, FBC 107. |
| | |
| | 8. THE ISSUE OF AN INCOMPLETE SPECIFICATION HAS BEEN |
| | DISCUSSED WITH THIS ENGINEER. IF CALCULATIONS SHOW THAT |
| | THE NUMBER OF FASTENERS SPECIFIED IS ADEQUATE, THE |
| | PATTERN OF THE FASTENERS INSTALLED AFFECTS THE ABILITY |
| | OF THE SIGN LETTERS OR COMPONENTS TO RESIST WIND LOADS |
| | FBC 1609. THE CONTRACTOR AND INSPECTOR RELY ON THE |
| | PLAN, BUT THE PLAN IS NOT CLEAR, FBC 107. |
| | |
| | THE FACT THAT THE RISK TO LIFE IN THE EVENT OF FAILURE |
| | IS NOT GREAT IS ACKNOWLEDGED. HOWEVER, IF ENGINEERING |
| | IS REQUIRED AND PROVIDED, ENGINEERING SHOULD BE |
| | ADEQUATE. IT APPEARS THAT THERE IS NO PRACTICAL PURPOSE |
| | OF ENGINEERING WHICH DOES NOT PROVIDE A SPECIFICATION. |
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