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Plan Review Notes

Plan Review Notes For Permit 17121018
Permit Number	17121018
Review Stop	FIRE
Sequence Number	2

Notes

Date	Text
2020-01-13 12:54:42	THIS PLAN WAS REVIEWED AND FAILED BY PETER LEDUC, FIRE
	MARSHAL, WITH THE FOLLOWING COMMENTS:


	1) SHEET A 2.01, A 5.00 & FP 2.00 - THERE APPEARS TO BE
	AN OPEN RAILING ALONG THE MEZZANINE LEVEL CREATING AN
	ATRIUM WITH NO PROTECTION.

	PER NFPA 101, CH 8

	8.6.7* ATRIUMS. UNLESS PROHIBITED BY CHAPTERS 11
	THROUGH 43, AN
	ATRIUM SHALL BE PERMITTED, PROVIDED THAT ALL OF 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(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(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 OF GLASS OR OTHER MATERILA
	THAT RESISTS 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) *FOR OTHER THAN EXISTING, PREVIOUSLY APPROVED SMOKE
	CONTROL
	SYSTEMS, WHERE AN ENGINEERED SMOKE CONTROL SYSTEM IS
	INSTALLED TO MEET THE REQUIREMENTS OF 8.6.7, THE SYSTEM
	IS
	INDEPENDENTLY ACTIVATED BY EACH OF THE FOLLOWING:
	(A) UPON ACTUATION OF THE REQUIRED AUTOMATIC SPRINKLER
	SYSTEM
	WITHIN THE ATRIUM OR AREAS OPEN TO THE ATRIUM
	(B) MANUAL CONTROLS THAT ARE READILY ACCESSIBLE TO THE
	FIRE
	DEPARTMENT

	PLEASE PROVIDE DETAILS IN COMPLIANCE WITH CODE.



	2) WHEN RESUBMITTING, PLEASE PROVIDE PLAN SHEET
	REVISION CLOUDS OR NUMBERED NARRATIVE RESPONSES TO THE
	ABOVE.



	3) ADDITIONAL COMMENTS MAY BE PROVIDED ON THE
	RE-SUBMITTAL OF THE ABOVE.



	PETER LEDUC
	FIRE MARSHAL
	561-804-4709
	[email protected]