| Date |
Text |
| 2017-08-15 10:46:04 | THIS PLAN WAS REVIEWED AND FAILED BY PETER LEDUC, FIRE |
| | MARSHAL, WITH THE FOLLOWING COMMENTS: |
| | |
| | |
| | 1) SHEET A 022 - THUIS SHEET INDICATES THE REMOVAL OF |
| | TWO SETS OF DOUBLE DOOR AT EACH END OF THE BRIDGE. |
| | SHEET A 202, INDICATES THE REINSTALLATION OF ONLY ONE |
| | SET. |
| | |
| | THE CONCERN LIES WITH WHAT WAS THE ORIGINAL LIFE SAFETY |
| | INTENT OF THESE DOORS AND WOULD REMOVING ONE SET |
| | COMPROMISE THE LIFE SAFETY FEATURES ORIGNALLY DESIGNED. |
| | |
| | PLEASE REVIEW THE EOR AND ENSURE THAT THESE DOORS DO |
| | NOT NEGATIVELY AFFECT THE LIFE SAFETY FEATURES OF THE |
| | BUILDING. |
| | |
| | PER NFPA 101 |
| | |
| | 8.6.7* ATRIUMS. UNLESS PROHIBITED BY CHAPTERS 11 |
| | THROUGH 43, AN ATRIUM SHALL BE PERMITTED, PROVIDED THAT |
| | THE FOLLOWING CONDITIONS ARE MET: |
| | (1) THE ATRIUM IS SEPARATED FROM THE ADJACENT SPACES BY |
| | FIRE BARRIERS WITH NOT LESS THAN A 1-HOUR FIRE |
| | RESISTANCE RATING, WITH OPENING PROTECTIVES FOR |
| | CORRIDOR WALLS, UNLESS ONE OF THE FOLLOWING IS MET: |
| | (A) THE REQUIREMENT OF 8.6.7(1) SHALL NOT APPLY TO |
| | EXISTING, PREVIOUSLY APPROVED ATRIUMS. |
| | (B) ANY NUMBER OF LEVELS OF THE BUILDING SHALL BE |
| | PERMITTED TO OPEN DIRECTLY TO THE ATRIUM WITHOUT |
| | ENCLOSURE, BASED ON THE RESULTS OF THE ENGINEERING |
| | ANALYSIS REQUIRED IN 8.6.7(5). |
| | (C)* GLASS WALLS AND INOPERABLE WINDOWS SHALL BE |
| | PERMITTED IN LIEU OF THE FIRE BARRIERS WHERE ALL THE |
| | FOLLOWING ARE MET: |
| | I. AUTOMATIC SPRINKLERS ARE SPACED ALONG BOTH SIDES OF |
| | THE GLASS WALL AND THE INOPERABLE WINDOWS AT INTERVALS |
| | NOT TO EXCEED 6 FT (1830 MM). |
| | II. THE AUTOMATIC SPRINKLERS SPECIFIED IN |
| | 8.6.7(1)(C)(I) ARE LOCATED AT A DISTANCE FROM THE GLASS |
| | WALL NOT TO EXCEED 12 IN. (305 MM) AND ARRANGED SO THAT |
| | THE ENTIRE SURFACE OF THE GLASS IS WET UPON OPERATION |
| | OF THE SPRINKLERS. |
| | III. THE GLASS WALL IS OF TEMPERED, WIRED, OR LAMINATED |
| | GLASS HELD IN PLACE BY A GASKET SYSTEM THAT ALLOWS THE |
| | GLASS FRAMING SYSTEM TO DEFLECT WITHOUT BREAKING |
| | (LOADING) THE GLASS BEFORE THE SPRINKLERS OPERATE. |
| | IV. THE AUTOMATIC SPRINKLERS REQUIRED BY 8.6.7(1)(C)(I) |
| | ARE NOT REQUIRED ON THE ATRIUM SIDE OF THE GLASS WALL |
| | AND THE INOPERABLE WINDOW WHERE THERE IS NO WALKWAY OR |
| | OTHER FLOOR AREA ON THE ATRIUM SIDE ABOVE THE MAIN |
| | FLOOR LEVEL. |
| | V. DOORS IN THE GLASS WALLS ARE OF GLASS OR OTHER |
| | MATERIAL THAT RESISTS THE PASSAGE OF SMOKE. |
| | VI. DOORS IN THE GLASS WALLS ARE SELF-CLOSING OR |
| | AUTOMATIC-CLOSING UPON DETECTION OF SMOKE. |
| | VII. THE GLASS IS CONTINUOUS VERTICALLY, WITHOUT |
| | HORIZONTAL MULLIONS, WINDOW TREATMENTS, OR OTHER |
| | OBSTRUCTIONS THAT WOULD INTERFERE WITH THE WETTING OF |
| | THE ENTIRE GLASS SURFACE. |
| | (2) ACCESS TO EXITS IS PERMITTED TO BE WITHIN THE |
| | ATRIUM, AND EXIT DISCHARGE IN ACCORDANCE WITH 7.7.2 IS |
| | PERMITTED TO BE WITHIN THE ATRIUM. |
| | (3) THE OCCUPANCY WITHIN THE ATRIUM MEETS THE |
| | SPECIFICATIONS FOR CLASSIFICATION AS LOW OR ORDINARY |
| | HAZARD CONTENTS. (SEE 6.2.2.) |
| | (4) THE ENTIRE BUILDING IS PROTECTED THROUGHOUT BY AN |
| | APPROVED, SUPERVISED AUTOMATIC SPRINKLER SYSTEM IN |
| | ACCORDANCE WITH SECTION 9.7. |
| | (5)* FOR OTHER THAN EXISTING, PREVIOUSLY APPROVED |
| | ATRIUMS, AN ENGINEERING ANALYSIS IS PERFORMED THAT |
| | DEMONSTRATES THAT THE BUILDING IS DESIGNED TO KEEP THE |
| | SMOKE LAYER INTERFACE ABOVE THE HIGHEST UNPROTECTED |
| | OPENING TO ADJOINING SPACES, OR 6 FT (1830 MM) ABOVE |
| | THE HIGHEST FLOOR LEVEL OF EXIT ACCESS OPEN TO THE |
| | ATRIUM, FOR A PERIOD EQUAL TO 1.5 TIMES THE CALCULATED |
| | EGRESS TIME OR 20 MINUTES, WHICHEVER IS GREATER. |
| | (6)* IN OTHER THAN EXISTING, PREVIOUSLY APPROVED |
| | ATRIUMS, WHERE AN ENGINEERED SMOKE CONTROL SYSTEM IS |
| | INSTALLED TO MEET THE REQUIREMENTS OF 8.6.7(5), THE |
| | SYSTEM IS INDEPENDENTLY ACTIVATED BY EACH OF THE |
| | FOLLOWING: |
| | (A) REQUIRED AUTOMATIC SPRINKLER SYSTEM |
| | (B) MANUAL CONTROLS THAT ARE READILY ACCESSIBLE TO THE |
| | FIRE DEPARTMENT |
| | |
| | PROVIDE APPLICABLE DETAILS/PLAN SHEETS/EOR DOCUMENTS, |
| | ETC |
| | |
| | |
| | |
| | 2) SHEET A 500 - THE DOOR SCHEDULE INDICATES NO RATING |
| | FOR DOOR B002. |
| | |
| | PLEASE REVIEW WITH # 1 ABOVE TO ENSURE THAT THIS DOOR |
| | IS NOT REQUIRED TO CARRY ANY RATING. |
| | |
| | PROVIDE APPLICABLE DETAILS/PLAN SHEETS/EOR DOCUMENTS, |
| | ETC |
| | |
| | |
| | |
| | 3) WHEN RESUBMITTING, PLEASE PROVIDE PLAN SHEET |
| | REVISION CLOUDS OR NUMBERED NARRATIVE RESPONSES TO THE |
| | ABOVE. |
| | |
| | |
| | |
| | |
| | 4) ADDITIONAL COMMENTS MAY BE PROVIDED ON THE |
| | RE-SUBMITTAL OF THE ABOVE. |
| | |
| | |
| | |
| | PETER LEDUC |
| | FIRE MARSHAL |
| | 561-804-4709 |
| | [email protected] |
| | |
