| Date |
Text |
| 2018-10-19 11:18:12 | THIS PLAN WAS REVIEWED AND FAILED BY PETER LEDUC, FIRE |
| | MARSHAL, WITH THE FOLLOWING COMMENTS: |
| | |
| | PLEASE PROVIDE DETAILS OF HOW THESE STAIRS WILL BE |
| | USED. ARE THEY PART OF THE REQUIRED MEANS OF EGRESS OR |
| | CONVIENENCE STARIS? |
| | |
| | |
| | 1) THE WIDTH INDICATED IS 36". |
| | PER NFPA 101 CHAPTER 7, MEANS OF EGRESS |
| | |
| | 7.2.2.2.1.2* MINIMUM NEW STAIR WIDTH. (SEE ALSO 7.3.3.) |
| | (A) WHERE THE TOTAL OCCUPANT LOAD OF ALL STORIES SERVED |
| | BY THE STAIR |
| | IS FEWER THAN 50, THE MINIMUM WIDTH CLEAR OF ALL |
| | OBSTRUCTIONS, |
| | EXCEPT PROJECTIONS NOT MORE THAN 4? IN. (114 MM) AT OR |
| | BELOW |
| | HANDRAIL HEIGHT ON EACH SIDE, SHALL BE 36 IN. (915 MM). |
| | (B) *WHERE STAIRS SERVE OCCUPANT LOADS EXCEEDING THAT |
| | PERMITTED |
| | BY 7.2.2.2.1.2(A), THE MINIMUM WIDTH CLEAR OF ALL |
| | OBSTRUCTIONS, |
| | EXCEPT PROJECTIONS NOT MORE THAN 4? IN. (114 MM) AT OR |
| | BELOW |
| | HANDRAIL HEIGHT ON EACH SIDE, SHALL BE IN ACCORDANCE |
| | WITH TABLE |
| | 7.2.2.2.1.2 (B) AND THE REQUIREMENTS OF, |
| | 7.2.2.2.1.2(C), |
| | 7.2.2.2.1.2(D), 7.2.2.2.1.2(E), AND 7.2.2.2.1.2(F). |
| | |
| | TABLE 7.2.2.2.1.2(B) NEW STAIR WIDTH |
| | TOTAL CUMULATIVE WIDTH |
| | OCCUPANT LOAD ASSIGNED |
| | TO THE STAIR IN. MM |
| | <2000 PERSONS 44 1120 |
| | ?2000 PERSONS 56 1420 |
| | |
| | PLEASE REVIEW AND CORRECT OF JUSTIFY WITH SPECIFIC CODE |
| | REFERENCES |
| | |
| | |
| | |
| | 2) THERE ARE INDICATIONS THAT THESE ARE WOOD STAIRS. |
| | |
| | PER NFPA 101 CHAPTER 7, MEANS OF EGRESS |
| | |
| | 7.2.2.3 STAIR DETAILS. |
| | 7.2.2.3.1 CONSTRUCTION. |
| | 7.2.2.3.1.1 ALL STAIRS SERVING AS REQUIRED MEANS OF |
| | EGRESS SHALL BE OF |
| | PERMANENT FIXED CONSTRUCTION, UNLESS THEY ARE STAIRS |
| | SERVING SEATING THAT |
| | IS DESIGNED TO BE REPOSITIONED IN ACCORDANCE WITH |
| | CHAPTERS 12 AND 13. |
| | 7.2.2.3.1.2 EACH STAIR, PLATFORM, AND LANDING, NOT |
| | INCLUDING HANDRAILS AND |
| | EXISTING STAIRS, IN BUILDINGS REQUIRED IN THIS CODE TO |
| | BE OF TYPE I OR TYPE |
| | II CONSTRUCTION SHALL BE OF NONCOMBUSTIBLE MATERIAL |
| | THROUGHOUT. |
| | |
| | |
| | PLEASE REVIEW AND CORRECT OF JUSTIFY WITH SPECIFIC CODE |
| | REFERENCES |
| | |
| | |
| | |
| | |
| | 3) THERE ARE NO INDICATION OR DETAILS OF A RAILING OR |
| | GAURD ON THE OUTSIDE OF THE PROPOSED STAIRS |
| | |
| | 7.2.2.4 GUARDS AND HANDRAILS. |
| | 7.2.2.4.1 HANDRAILS. |
| | 7.2.2.4.1.1 STAIRS AND RAMPS SHALL HAVE HANDRAILS ON |
| | BOTH SIDES, |
| | UNLESS OTHERWISE PERMITTED IN 7.2.2.4.1.5 OR |
| | 7.2.2.4.1.6. |
| | 7.2.2.4.1.2 IN ADDITION TO THE HANDRAILS REQUIRED AT |
| | THE SIDES OF |
| | STAIRS BY 7.2.2.4.1.1, BOTH OF THE FOLLOWING PROVISIONS |
| | SHALL APPLY: |
| | (1) FOR NEW STAIRS, HANDRAILS SHALL BE PROVIDED WITHIN |
| | 30 IN. (760 |
| | MM) OF ALL PORTIONS OF THE REQUIRED EGRESS WIDTH. |
| | (2) FOR EXISTING STAIRS, HANDRAILS SHALL MEET THE |
| | FOLLOWING CRITERIA: |
| | (A) THEY SHALL BE PROVIDED WITHIN 44 IN. (1120 MM) OF |
| | ALL |
| | PORTIONS OF THE REQUIRED EGRESS WIDTH. |
| | (B) SUCH STAIRS SHALL NOT HAVE THEIR EGRESS CAPACITY |
| | ADJUSTED |
| | TO A HIGHER OCCUPANT LOAD THAN PERMITTED BY THE |
| | CAPACITY |
| | FACTOR IN TABLE 7.3.3.1 IF THE STAIR?S CLEAR WIDTH |
| | BETWEEN |
| | HANDRAILS EXCEEDS 60 IN. (1525 MM). |
| | |
| | PLEASE REVIEW AND CORRECT OF JUSTIFY WITH SPECIFIC CODE |
| | REFERENCES |
| | |
| | |
| | |
| | 4) THERE IS AN INDICATION OF INTERIM RAILS AT 8" OC. |
| | |
| | 7.2.2.4.6.3* OPEN GUARDS, OTHER THAN APPROVED EXISTING |
| | OPEN |
| | GUARDS, SHALL HAVE INTERMEDIATE RAILS OR AN ORNAMENTAL |
| | PATTERN SUCH |
| | THAT A SPHERE 4 IN. (100 MM) IN DIAMETER IS NOT ABLE TO |
| | PASS |
| | THROUGH ANY OPENING UP TO A HEIGHT OF 34 IN. (865 MM), |
| | AND THE |
| | FOLLOWING ALSO SHALL APPLY: |
| | (1) THE TRIANGULAR OPENINGS FORMED BY THE RISER, TREAD, |
| | AND |
| | BOTTOM ELEMENT OF A GUARDRAIL AT THE OPEN SIDE OF A |
| | STAIR SHALL |
| | BE OF SUCH SIZE THAT A SPHERE 6 IN. (150 MM) IN |
| | DIAMETER IS |
| | NOT ABLE TO PASS THROUGH THE TRIANGULAR OPENING. |
| | |
| | PLEASE REVIEW AND CORRECT OF JUSTIFY WITH SPECIFIC CODE |
| | REFERENCES |
| | |
| | |
| | |
| | |
| | 5) WHEN RESUBMITTING, PLEASE PROVIDE PLAN SHEET |
| | REVISION CLOUDS OR NUMBERED NARRATIVE RESPONSES TO THE |
| | ABOVE. |
| | |
| | |
| | |
| | 6)ADDITIONAL COMMENTS MAY BE PROVIDED ON THE |
| | RE-SUBMITTAL OF THE ABOVE. |
| | |
| | |
| | |
| | PETER LEDUC |
| | FIRE MARSHAL |
| | 561-804-4709 |
| | [email protected] |
| | |
