| 2021-04-20 09:02:39 | SPIRAL STAIR |
| | REVIEWED BY ROGER MCPHERSON |
| | 561-805-6716 |
| | [email protected]. |
| | CODE USED FOR REVIEW - 2020 FBC WITH WPB CHAPTER 1 |
| | AMENDMENT |
| | |
| | CORRECTIONS NEEDED - FBC WPB AMENDMENTS 107 |
| | 1) DRAWINGS ARE UNCLEAR - PLEASE PROVIDE A CLEAR COPY |
| | OF THE DRAWINGS. |
| | 2) PLEASE SHOW HANDRAIL HEIGHT TO COMPLY WITH FBC |
| | R311.7.8.1 HEIGHT. |
| | HANDRAIL HEIGHT, MEASURED VERTICALLY FROM THE SLOPED |
| | PLANE ADJOINING THE TREAD NOSING, OR FINISH SURFACE OF |
| | RAMP SLOPE, SHALL BE NOT LESS THAN 34 INCHES (864 MM) |
| | AND NOT MORE THAN 38 INCHES (965 MM). |
| | 3) PLEASE SHOW HANDRAIL/GUARDRAIL OPENINGS TO COMPLY |
| | WITH FBC R312.1.3 OPENING LIMITATIONS. |
| | REQUIRED GUARDS SHALL NOT HAVE OPENINGS FROM THE |
| | WALKING SURFACE TO THE REQUIRED GUARD HEIGHT THAT ALLOW |
| | PASSAGE OF A SPHERE 4 INCHES (102 MM) IN DIAMETER. |
| | EXCEPTIONS: |
| | 1.THE TRIANGULAR OPENINGS AT THE OPEN SIDE OF STAIR, |
| | FORMED BY THE RISER, TREAD AND BOTTOM RAIL OF A GUARD, |
| | SHALL NOT ALLOW PASSAGE OF A SPHERE 6 INCHES (153 MM) |
| | IN DIAMETER. |
| | 2.GUARDS ON THE OPEN SIDE OF STAIRS SHALL NOT HAVE |
| | OPENINGS THAT ALLOW PASSAGE OF A SPHERE 4 3/8 INCHES |
| | (111 MM) IN DIAMETER. |
| | 4) DRAWINGS ARE UN CLEAR CANNOT SEE THESE MEASUREMENTS |
| | - FBC R311.7.10.1 SPIRAL STAIRWAYS. |
| | SPIRAL STAIRWAYS ARE PERMITTED, PROVIDED THAT THE CLEAR |
| | WIDTH AT AND BELOW THE HANDRAIL IS NOT LESS THAN 26 |
| | INCHES (660 MM) AND THE WALKLINE RADIUS IS NOT GREATER |
| | THAN 241/2 INCHES (622 MM). EACH TREAD SHALL HAVE A |
| | DEPTH OF NOT LESS THAN 63/4 INCHES (171 MM) AT THE |
| | WALKLINE. ALL TREADS SHALL BE IDENTICAL, AND THE RISE |
| | SHALL BE NOT MORE THAN 91/2 INCHES (241 MM). HEADROOM |
| | SHALL BE NOT LESS THAN 6 FEET 6 INCHES (1982 MM). |
| | 5) DRAWINGS ARE UNCLEAR - PLEASE SHOW CONNECTION TO THE |
| | BUILDING AND FOUNDATION - FBC R311.5.1 ATTACHMENT. |
| | EXTERIOR LANDINGS, DECKS, BALCONIES, STAIRS AND SIMILAR |
| | FACILITIES SHALL BE POSITIVELY ANCHORED TO THE PRIMARY |
| | STRUCTURE TO RESIST BOTH VERTICAL AND LATERAL FORCES OR |
| | SHALL BE DESIGNED TO BE SELF-SUPPORTING. ATTACHMENT |
| | SHALL NOT BE ACCOMPLISHED BY USE OF TOENAILS OR NAILS |
| | SUBJECT TO WITHDRAWAL. |
| | 6) PLEASE PROVIDE A SITE PLAN SHOWING THE LOCATION OF |
| | THE STAIR. |
| | 7) JOB VALUE SHOWN ON THE PERMIT APPLICATION NEEDS TO |
| | INCLUDE THE COST OF THE STAIR - WHICH IS NOT SHOWN ON |
| | THE CONTRACT PROVIDED. FOR PERMITTING PURPOSES THE |
| | VALUE OF ALL LABOR AND MATERIALS REQUIRED TO COMPLETE |
| | THE PROJECT ARE REQUIRED TO BE INCLUDED IN THE COST. |
| | FBC 109.3 |
| | 8) DRAWINGS APPEAR TO BE FOR AN INTERIOR STAIR. IF |
| | STAIR IS FOR THE EXTERIOR IT IS SUBJECT TO WIND LOADS - |
| | PLEASE SHOW THE WIND DESIGN CRITERIA TO COMPLY WITH FBC |
| | R301.1.3 ENGINEERED DESIGN. |
| | WHERE A BUILDING OF OTHERWISE CONVENTIONAL CONSTRUCTION |
| | CONTAINS STRUCTURAL ELEMENTS EXCEEDING THE LIMITS OF |
| | SECTION R301 OR OTHERWISE NOT CONFORMING TO THIS CODE, |
| | THESE ELEMENTS SHALL BE DESIGNED IN ACCORDANCE WITH |
| | ACCEPTED ENGINEERING PRACTICE. THE EXTENT OF SUCH |
| | DESIGN NEED ONLY DEMONSTRATE COMPLIANCE OF |
| | NONCONVENTIONAL ELEMENTS WITH OTHER APPLICABLE |
| | PROVISIONS AND SHALL BE COMPATIBLE WITH THE PERFORMANCE |
| | OF THE CONVENTIONAL FRAMED SYSTEM. ENGINEERED DESIGN IN |
| | ACCORDANCE WITH THE FLORIDA BUILDING CODE, BUILDING IS |
| | PERMITTED FOR BUILDINGS AND STRUCTURES, AND PARTS |
| | THEREOF, INCLUDED IN THE SCOPE OF THIS CODE. PLEASE |
| | SHOW THE WIND DESIGN CRITERIA PER FBC 1603.1.4 |
| | |
