OBC INDUSTRIAL MAJOR OCCUPANCY CLASSIFICATION OBOA ANNUAL MEETING AND TRAINING SESSIONS LONDON ON OCTOBER 4, 2011 Randal Brown & Associates Ltd. 2011 1
PRESENTERS RANDAL BROWN P.ENG., PE, BDS, FSPFE PRESIDENT MARK HARROP P.ENG., BDS, CFPS MANAGER, INDUSTRIAL DIVISION RANDAL BROWN & ASSOCIATES LTD. Randal Brown & Associates Ltd. 2011 2
PRINCIPAL TOPICS INDUSTRIAL MAJOR OCCUPANCIES DIFFERENTIATING 10% CONCEPT PAINT SPRAY BOOTH EXAMPLE OBC / OFC MANDATED PROTECTION HOW TO GET FROM OBC TO OFC WHAT TO LOOK FOR AND ASK FOR Randal Brown & Associates Ltd. 2011 3
SPRAY BOOTH PHOTO Randal Brown & Associates Ltd. 2011 4
SPRAY BOOTH PHOTO Randal Brown & Associates Ltd. 2011 5
MAJOR OCCUPANCY DEFN DEFINED IN OBC MAJOR OCCUPANCY: MEANS THE PRINCIPAL OCCUPANCY FOR WHICH A BUILDING OR PART OF A BUILDING IS USED OR INTENDED TO BE USED, AND IS DEEMED TO INCLUDE SUBSIDIARY OCCUPANCIES THAT ARE AN INTEGRAL PART OF THE PRINCIPAL OCCUPANCY. Randal Brown & Associates Ltd. 2011 6
MAJOR OCCUPANCY DEFN KEY POINTS: PRINCIPAL USE BUILDING OR PART OF BUILDING CAN HAVE SEVERAL MAJOR OCCUPANCIES IN A BUILDING INCLUDES SUBSIDIARY USES Randal Brown & Associates Ltd. 2011 7
EXAMPLES OF MAJOR OCCUPANCIES APPENDIX NOTE A-3.1.2.1.(1) 3121(1) PART 11 TABLES OTHER CODES IBC NFPA 101 & 5000 Randal Brown & Associates Ltd. 2011 8
EXAMPLES OF MAJOR OCCYS Randal Brown & Associates Ltd. 2011 9
EXAMPLES OF MAJOR OCCY PART 11 Randal Brown & Associates Ltd. 2011 10
EXAMPLES OF MAJOR OCCY PART 11 Randal Brown & Associates Ltd. 2011 11
HOW TO DETERMINE MAJOR OCC Y CLASSIFICATION BUILDING OFFICIAL TO ASK OWNER / DESIGNER ASK TO SEE EQUIPMENT LAYOUTS BUILDING OFFICIAL TO ASK: WHAT IS ACTUALLY BEING DONE IN THE BUILDING? WHAT IS THE MAIN ACTIVITY? Randal Brown & Associates Ltd. 2011 12
HOW TO DETERMINE MAJOR OCC Y CLASSIFICATION WHEN HAVE MULTIPLE USES: WOULD ONE OCCUPANCY / USE EXIST WITHOUT THE OTHER? 1. WOULD OFFICE BE PRESENT WITHOUT THE FACTORY? 2. WOULD BOARDROOM BE PRESENT WITHOUT THE OFFICES? Randal Brown & Associates Ltd. 2011 13
HOW TO DETERMINE MAJOR OCC Y CLASSIFICATION EXAMPLE OF AUTOMOTIVE SPRAY BOOTH SPRAY BOOTH IN A MAACO? MAIN PURPOSE: BODYSHOP AND SPRAY PAINT CARS. WHAT IS THE MAJOR OCCUPANCY??? F2 REPAIR GARAGE??? OR F1 SPRAY BOOTH??? Randal Brown & Associates Ltd. 2011 14
HOW TO DETERMINE MAJOR OCC Y CLASSIFICATION EXAMPLE OF AUTOMOTIVE SPRAY BOOTH SPRAY BOOTH IN A AUTOMOBILE DEALERSHIP? MAIN PURPOSE: SELL CARS, REPAIR CARS, MAINTENANCE OF CARS. PAINTING IS JUST ONE FUNCTION. DEALERSHIP WOULD STILL BE PRESENT WITHOUT THE PAINT SPRAY BOOTH SO SPRAY BOOTH IS A SUBSIDIARY USE AND NOT A MAJOR OCCUPANCY. Randal Brown & Associates Ltd. 2011 15
STEP 1 GENERAL MAJOR OCCUPANCY WHAT IS MAIN USE? USE EXAMPLES IN APPENDIX USE EXAMPLES IN PART 11 Randal Brown & Associates Ltd. 2011 16
STEP 2 FUEL LOAD ANALYSIS INDUSTRIAL OCCUPANCIES F1 HIGH HAZARD INDUSTRIAL F2 MEDIUM HAZARD INDUSTRIAL F3 LOW HAZARD INDUSTRIAL Randal Brown & Associates Ltd. 2011 17
F1 HIGH HAZARD INDUSTRIAL OCCUPANCY SUFFICIENT QUANTITY, AND SPECIAL FIRE HAZARD HIGHLY COMBUSTIBLE AND FLAMMABLE, OR EXPLOSIVE MATERIALS INHERENT CHARACTERISTICS Randal Brown & Associates Ltd. 2011 18
F1 HIGH HAZARD EXAMPLES SUFFICIENT QUANTITY, AND SPECIAL FIRE HAZARD PYROPHORIC SELF-COMBUST IN AIR CHEMICAL REACTIONS EXAMPLES IN APPENDIX CHEMICAL PLANTS Randal Brown & Associates Ltd. 2011 19
F2 VS F3 F2 MEDIUM HAZARD COMBUSTIBLE CONTENT MORE THAN 50 KG/M2 OF FLOOR AREA, OR 1200 MJ/M2 OF FLOOR AREA. F3 LOW HAZARD COMBUSTIBLE CONTENT NOT MORE THAN 50 KG/M2 OF FLOOR AREA, OR 1200 MJ/M2 OF FLOOR AREA. Randal Brown & Associates Ltd. 2011 20
F2 VS F3 (CONT D) FUEL LOAD ANALYSIS NEED: QUANTITY OF MATERIALS IN BUILDING WEIGHT OF MATERIALS IN BUILDING HEAT OF COMBUSTION SFPE HANDBOOK NFPA HANDBOOK Randal Brown & Associates Ltd. 2011 21
F2 VS F3 (CONT D) EITHER CRITERIA WILL TRIGGER OCCUPANCY CLASSIFICATION. SO NEED TO LOOK AT BOTH WEIGHT OF COMBUSTIBLE MATERIALS, AND HEAT OF COMBUSTION OF COMBUSTIBLE MATERIALS Randal Brown & Associates Ltd. 2011 22
F2 VS F3 STILL USE APPENDIX AND PART 11 EXAMPLES. WON T DO FUEL LOAD ANALYSIS FOR EVERY INDUSTRIAL OCCUPANCY Randal Brown & Associates Ltd. 2011 23
SFPE HANDBOOK Randal Brown & Associates Ltd. 2011 24
NFPA HANDBOOK Randal Brown & Associates Ltd. 2011 25
SAMPLE FUEL LOAD CALCULATION Category of Mass Heat of Combustion Heat Released Combustible Material (kg) (MJ/kg) (MJ) Hydraulic Oils 1 400 kg (approx.) 46.0 MJ/kg 64 400 MJ Cables and Wiring 11 000 kg (approx.) 43.4 MJ/kg 477 400 MJ FRP Floor Grating 6 000 kg (approx.) 40.52 MJ/kg 243 120 MJ FRP Tanks & Associated Piping 36 000 kg (approx.) 40.52 MJ/kg 1 458 720 MJ Miscellaneous 6 000 kg (approx.) 43.4 MJ/kg 260 400 MJ TOTAL 2 504 040 MJ Randal Brown & Associates Ltd. 2011 26
10% MAJOR OCCUPANCY 3228(1) 3.2.2.8.(1) PROVISION AGGREGATE AREA OF ALL MAJOR OCCUPANCIES IN A PARTICULAR DIVISION IS NOT MORE THAN 10% OF THE FLOOR AREA OF THE STOREY, NEED NOT BE CONSIDERED AS MAJOR OCCUPANCY FOR PURPOSES OF THIS SUBSECTION, PROVIDED NOT F1 OR F2. Randal Brown & Associates Ltd. 2011 27
10% PROVISION (CONT D) MUST BE A MAJOR OCCUPANCY DOES NOT INCLUDE SUBSIDIARY USES. APPLIES WELL TO A STRIP PLAZA WITH AN INDUSTRIAL OCCUPANCY GROUND FLOOR OF CONDO RETAIL AND RESIDENTIAL MAJOR OCCUPANCIES Randal Brown & Associates Ltd. 2011 28
10% PROVISION (CONT D) F1 OR F2 CAN BE LESS THAN 10% AND ARE REQUIRED TO BE CONSIDERED A MAJOR OCCUPANCY FOR 3.2.2. 2 THIS 10% RELAXATION IS ONLY FOR THIS SUBSECTION ONLYFOR322 3.2.2. CONSTRUCTION OCCUPANCY PROHIBITIONS ARE STILL APPLICABLE. Randal Brown & Associates Ltd. 2011 29
10% PROVISION Randal Brown & Associates Ltd. 2011 30
10% PROVISION Randal Brown & Associates Ltd. 2011 31
INDUSTRIAL OCCUPANCY SUMMARY USE COMMON SENSE ASK DESIGNER TO CLASSIFY MAJOR OCCUPANCY HAVE RIGHT TO ASK FOR A FUEL LOAD / COMBUSTIBLE LOAD STUDY STAMPED BY P.ENG. Randal Brown & Associates Ltd. 2011 32
NOTES: Randal Brown & Associates Ltd. 2011 33
CASE STUDY: SPRAY BOOTH Randal Brown & Associates Ltd. 2011 34
CASE STUDY: SPRAY BOOTH COMMON EXAMPLE OF F1 OCCUPANCY SPRAY APPLICATION OF FLAMMABLE LIQUIDS WHAT IS SPECIAL FIRE HAZARD? Randal Brown & Associates Ltd. 2011 35
SPRAY BOOTH HAZARD: THE ATOMIZATION OF FLAMMABLE OR COMBUSTIBLE MATERIAL AS A RESULT OF SPRAYING LEADS TO FREQUENT OPERATIONS DURING WHICH A FLAMMABLE / EXPLOSIVE VAPOUR- AIR MIXTURE IS PRESENT Randal Brown & Associates Ltd. 2011 36
CASE STUDY: SPRAY BOOTH OTHER EXAMPLES OF F1 OCCUPANCIES ALSO FOCUS ON HAZARDOUS MATERIALS HAZARDOUS MATERIALS MUST BE ADDRESSED IN CONFORMANCE WITH THE REQUIREMENTS OF THE FIRE CODE OBCSENTENCE3312(1) 3.3.1.2.(1) Randal Brown & Associates Ltd. 2011 37
CASE STUDY: SPRAY BOOTH ONTARIO FIRE CODE (OFC) SECTION 5.12 ADDRESSES SPRAY APPLICATION OF FLAMMABLE AND COMBUSTIBLE MATERIALS OFC SUBSECTION 5.14.5 ADDRESSES AUTOMOBILE UNDERCOATING, ALSO A SPRAY OPERATION Randal Brown & Associates Ltd. 2011 38
CASE STUDY: SPRAY BOOTH LOCATION OF SPRAY OPERATIONS OFC REQUIRES SEPARATION IN CONFORMANCE WITH OBC, WHERE APPLICABLE (OFC 5.12.1.1) 1 1) THIS IS A REFERENCE TO MAJOR OCCUPANCY SEPARATION (OBC 3.1.3.1) Randal Brown & Associates Ltd. 2011 39
SPRAY BOOTH CONSTRUCTION STEEL FRAME AND SHEET STEEL AT LEAST 1.14 MM THICK, OR EQUIVALENT NONCOMBUSTIBLE CONSTRUCTION INTERIOR SURFACES SMOOTH AND CONTINUOUS, FLOOR IN BOOTH NONCOMBUSTIBLE Randal Brown & Associates Ltd. 2011 40
SPRAY BOOTH CONSTRUCTION Randal Brown & Associates Ltd. 2011 41
SPRAY BOOTH CONSTRUCTION OVERSPRAY COLLECTION FILTERS TO PREVENT COMBUSTIBLE ACCUMULATION ON FAN BLADE, CASING AND DUCTWORK FILTER SUPPORTS NONCOMBUSTIBLE Randal Brown & Associates Ltd. 2011 42
SPRAY BOOTH CONSTRUCTION FILTERS MUST BE READILY ACCESSIBLE FOR CLEANING OR REPLACEMENT PROCEDURES TO REPLACE PRIOR TO EXCESSIVE RESTRICTION OF AIRFLOW Randal Brown & Associates Ltd. 2011 43
SPRAY BOOTH CONSTRUCTION FAN BLADES AND CASINGS MUST BE OF NON-FERROUS CONSTRUCTION OR DESIGNED TO PREVENT CONTACT OF FERROUS PARTS REFERENCE AMCA SPARK- RESISTANT CONSTRUCTION (A/B/C) Randal Brown & Associates Ltd. 2011 44
VENTILATION VENTILATION IN SPRAY AREAS MUST: KEEP CONCENTRATION BELOW 25% OF LEL OF MATERIAL, AND MEET A 30 M/MIN VELOCITY REQUIREMENT AT FACE OF BOOTH Randal Brown & Associates Ltd. 2011 45
VENTILATION DEDICATED EXHAUST FOR EACH SPRAY BOOTH (EXCEPT WHEN LESS THAN 1.8 M 2 FRONTAL AREA) NO RECIRCULATION GAUGES OR ALARMS REQUIRED TO MEASURE AIR VELOCITY Randal Brown & Associates Ltd. 2011 46
VENTILATION Randal Brown & Associates Ltd. 2011 47
VENTILATION Randal Brown & Associates Ltd. 2011 48
VENTILATION DUCTS MUST BE SHEET STEEL, THICKNESS AS PER OFC, BASED ON DUCT DIAMETER ACCESS OPENINGS FOR CLEANING CLEARANCE OF 457 MM BETWEEN DUCTS AND UNPROTECTED COMBUSTIBLE MATERIAL Randal Brown & Associates Ltd. 2011 49
VENTILATION DUCTS THROUGH COMBUSTIBLE PARTITIONS AND ROOFS REQUIRE A METAL COLLAR WITH 100 MM MINIMUM CLEARANCE AND NONCOMBUSTIBLE INSULATING MATERIAL AIR DISCHARGE NOT WITHIN 1.8 M OF COMBUSTIBLE EXTERIOR WALL OR ROOF Randal Brown & Associates Ltd. 2011 50
ELECTRICAL EQUIPMENT ELECTRICS IN A SPRAYING AREA (BOOTH OR ROOM) MUST CONFORM TO CHAPTERS 18 AND 20 OF ELECTRICAL CODE CHAPTER 18 GENERAL REQUIREMENTS RULE 20-400 SPECIFIC FOR SPRAY BOOTHS Randal Brown & Associates Ltd. 2011 51
ELECTRICAL EQUIPMENT INSIDE SPRAY BOOTH AND EXHAUST DUCTWORK - CLASS I, ZONE 1 HAZARDOUS LOCATION OUTSIDE SPRAY BOOTH CLASS I, ZONE 2 IN A 1.5 M RADIUS OF THE OPEN SIDE IN ALL DIRECTIONS, UP TO 1 M ABOVE THE CEILING OF THE BOOTH Randal Brown & Associates Ltd. 2011 52
ELECTRICAL EQUIPMENT Randal Brown & Associates Ltd. 2011 53
ELECTRICAL EQUIPMENT ELECTRIC MOTORS FOR EXHAUST FANS ARE NOT PERMITTED IN SPRAY BOOTHS OR EXHAUST DUCTS METAL PARTS OF SPRAY BOOTHS AND EXHAUST DUCTS AND PIPING FOR FLAMMABLE LIQUIDS MUST BE ELECTRICALLY GROUNDED Randal Brown & Associates Ltd. 2011 54
OPERATIONS FLAMMABLE LIQUIDS MUST BE STORED AND HANDLED IN CONFORMANCE WITH PART 4 OF THE OFC MAXIMUM QUANTITY IN THE SPRAY AREA IS ONE DAY S SUPPLY CONTAINERS KEPT CLOSED WHEN NOT IN USE Randal Brown & Associates Ltd. 2011 55
OPERATIONS SPRAYING EQUIPMENT IN SPRAY BOOTH MUST BE INTERLOCKED TO THE VENTILATION SYSTEM IN THE BOOTH DISCARDED FILTERS REMOVED TO SAFE LOCATION OR PLACED IN A METAL, WATER-FILLED CONTAINER AND REMOVED AT END OF DAY Randal Brown & Associates Ltd. 2011 56
FIRE PROTECTION REQUIRED SPRAY AREAS, SPRAY BOOTHS, AND SPRAY ROOMS MUST BE SPRINKLERED IN CONFORMANCE WITH NFPA 13 IF UNSPRINKLERED BUILDING, FIRE PROTECTION COULD BE AS PER NFPA 33 Randal Brown & Associates Ltd. 2011 57
FIRE PROTECTION IF SPRINKLERED, NFPA 13 REQUIRES EXTRA HAZARD (GROUP 2) PROTECTION UNDER MOST CIRCUMSTANCES HEADS REQUIRE PROTECTION FROM OVERSPRAY BY THIN PAPER OR LIGHTWEIGHT POLYETHYLENE BAGS Randal Brown & Associates Ltd. 2011 58
FIRE PROTECTION Randal Brown & Associates Ltd. 2011 59
FIRE PROTECTION PORTABLE FIRE EXTINGUISHERS REQUIRED IN CONFORMANCE WITH OFC SECTION 6.2 CLASS B EXTINGUISHERS FOR FLAMMABLE AND COMBUSTIBLE LIQUIDS Randal Brown & Associates Ltd. 2011 60
AUTOMOBILE UNDERCOATING Randal Brown & Associates Ltd. 2011 61
AUTOMOBILE UNDERCOATING SPECIFIC EXAMPLE (OFC, 5.14.5) 5) UNDERCOATING MATERIAL MUST HAVE FLASH POINT NOT LESS THAN 37.8 DEGREES CELSIUS LESS STRINGENT THAN FLAMMABLE PAINTING Randal Brown & Associates Ltd. 2011 62
AUTOMOBILE UNDERCOATING IF FLASH POINT LESS THAN 60 DEGREES CELSIUS THEN VENTILATION REQUIRED TO KEEP VAPOUR LESS THAN 25% OF LEL AIR MOVES ALONG LENGTH OF VEHICLE, EXHAUST APPROXIMATELY 1 M ABOVE FLOOR Randal Brown & Associates Ltd. 2011 63
NOTES: Randal Brown & Associates Ltd. 2011 64
THANK-YOU RANDY BROWN & MARK HARROP RANDAL BROWN & ASSOCIATES LTD. 105-6LANSING6 SQUARE TORONTO ON M2J 1T5 416-492-5886 RBROWN@RBACODES.COM MHARROP@RBACODES.COM WWW.RBACODES.COM Randal Brown & Associates Ltd. 2011 65