Major Changes to the 2010 National Construction Codes Contractor s Breakfast January 2014

Transcription

1 Major Changes to the 2010 National Construction Codes Contractor s Breakfast January 2014 Philip Rizcallah, P. Eng. NRC-IRC Canadian Codes Centre Presented by Stan Dueck CRBO

2 Overview Where are the major changes? Changes to Parts 3 & 9 of the 2010 NBC Changes to Parts 4, 5 & 6 of the 2010 NFC Issues Addressed: Fire Protection Use and Egress Hazardous Materials & Activities Part 9 Housing & Small Buildings Not covered in this presentation; changes to Part 4, 5 & 6 of the NBC, water pipe sizing changes to the NPC, the Revisions of December 2012 (incorporated energy efficiency requirements) 2

3 Overview More information about the 2010 National Construction Codes News release providing information regarding the nearly 800 technical changes made to address technological advances, health & safety concerns 3

4 Overview Check out the Frequently Asked Questions The Significant technical changes in the 2010 National Model Construction Codes es.html The Online Presentations on the 2010 Codes ons.html 4

5 Overview The Construction Codes now have 10 Standing Committee s that report to the Canadian Commission on Building & Fire Codes 4 of these 10 Standing Committee s are involved in the areas being addressed in this presentation: Standing Committee on Fire Protection Standing Committee on Use and Egress Standing Committee on Hazardous Materials & Activities Standing Committee on Part 9 Housing & Small Buildings 5

6 Code Development What s the Process? From Change Request to Code Requirement: Code Change Request (CCR) Standing Committee Decision to address issue Standing Committee Proposed change (PCF) Development and Decision Public Review Standing Committee Final Recommendation to CCBFC Canadian Commission on Building and Fire Codes (CCBFC) decision Publication of National Model Codes 6

7 Code Process Update Where are we now? Oct 2008 Apr 2009 PCF 2007 Public Review SC Sep SC SC PCF 2008 Public Review SC CCBFC 2009 Nov Feb Dec 2010 SC SC SC CCR PCF Public CCBFC Review 7

8 Major Changes Subjects Spatial Separation Residential Care Facilities Fire and Smoke Alarms Exit Signs Combustible Penetrations (Fire Stop now called Fire Block) Plenum Cables Stairs, Ramps, Handrails and Guards (Parts 3 & 9) Secondary Suites NFC 8

9 Major Changes Subject Spatial Separation Residential Care Facilities Fire and Smoke Alarms Exit Signs Combustible Penetration (Fire Stop, Fire Block) Plenum Cables Stairs, Ramps, Handrails and Guards (Part 3 & 9) Secondary Suites NFC 9

10 Major Changes Subject Spatial Separation is more commonly known as a set-back from a property line Spatial Separation could be a measurement to a property line or to an imaginary line between two buildings that are located on the same property For more information about required set-backs see our document regarding the Area Development Regulations and the 2010 NBC 10

11 Edmonton Fire Residential Buildings 11

12 Edmonton Fire continued 12

13 Edmonton Fire continued 13

14 Edmonton Fire continued 14

15 Edmonton Fire continued 15

16 Watson Lake Fire Commercial Buildings 16

17 Watson Lake Fire continued 17

18 Richmond & Kingston 6-Storey under construction 2011 & 2013 Fires 18

19 Nature of Technical Changes (Spatial Separation) Edmonton Fire Changes can be summarized as: limiting distance & fire department response time of 10 minutes for both Part 3 & Part 9 buildings; unprotected openings; construction of exposing building faces; and projections. 19

20 Limiting Distance (LD) Spatial Separation Clarification of the relationship between fire department response time and Limiting Distance (LD) between buildings and also to property lines; 10-min response time Harmonization between Part 3 and Part 9 language on LD when the 10-min is exceeded The 10-min response has been a requirement for Part 3 buildings in previous editions of the NBC 20

21 Property Line Limiting Distance (LD) Spatial Separation Limiting Distance (LD) 21

22 Limiting Distance (LD) Spatial Separation LD values indicated in the Code provisions must be doubled on site where: 10-min fire department response can not be met in 90% of calls to the building any storey in the building is not sprinklered LD x 2 22

23 Area of Unprotected Openings (Spatial Separation) Limits on individual unprotected openings where the LD is 2 m or less; Area = 0.24 [(2 * LD) 1.2] 2 LD (m) Maximum Area of Individual Unprotected Openings, m

24 Area of Unprotected Openings (Spatial Separation) (Part 9 Differences) Buildings: Exception for openable bedroom or sleeping room windows having an unobstructed area equal to 0.35 m 2 Individual unprotected openings Dwellings or homes:... individual glazed openings or group of glazed openings in exposing building face not exceed 50% max. allowable For more information regarding bedroom egress windows see Advisory #2 Egress Windows or Doors for Bedrooms 24

25 Area of Unprotected Openings (Spatial Separation) Horizontal and vertical distances between individual unprotected openings: 2 m horizontally of another unprotected opening that is on the same exposing building face and serves the single room or space, or 2 m vertically of another unprotected opening that serves the single room or space, or another room or space on the same storey with a separation wall that is less than 1.5m. See Sentence (5) of the NBC 25

26 Unprotected Openings Spatial Separation 2m 2m Windows 2m 2m 2m 2m 2m Single Room or Space (Elevation View) 26

27 Single Room or Space (Plan View) Wall Unprotected Openings Spatial Separation Space Space 1.5 m from exterior wall and full-height 2m Windows Two or more adjacent spaces having a full-height separating wall extending at least 1.5 m from the interior face of the exterior wall, or... 27

28 Stacked Spaces (Sectional View) Unprotected Openings Spatial Separation 2 nd Floor Windows 2m Ground Floor... Two or more stacked spaces that are on the same storey. 28

29 Combustible Projections Spatial Separation Roof soffits can not be constructed above the exposing building face (EBF), where the EBF has a LD of not more than 0.45 m (18 ) ; Roof soffits not to project to less than 0.45 m from the property line where the EBF has a LD of more than 0.45 m (18 ); 29

30 Combustible Projections Spatial Separation LD 0.45 m LD > 0.45 m LD soffit 0.45 m LD soffit 0.45 m LD 0.45 m LD > 0.45 m 30

31 Soffit Protection Spatial Separation Protected, unvented and no openings in the soffit LD < 1.2 m (4 ) 31

32 Construction of Exposing Building Face Spatial Separation Maximum Area of Unprotected Openings (MAUO) > 25 to 50 Fire-Resistance Rating (FRR) 45 minutes, same rating as in the 2005 NBC Type of Construction Combustible or Noncombustible, same as 2005 NBC Cladding Noncombustible, new for > 25 to 50% in the 2010 NBC 32

33 Construction of Exposing Building Face Spatial Separation MAUO 25-50% there is an exception for Noncombustible Cladding where: LD > 5 m *** The building or the fire compartment is Sprinklered through-out including attic/roof spaces *** Cladding conforms to Section of the NBC 33

34 Major Changes Subject Spatial Separation Residential Care Facilities Fire and Smoke Alarms Exit Signs Combustible Penetration (Fire Stop, Fire Block) Plenum Cables Stairs, Ramps, Handrails and Guards (Part 3 & 9) Secondary Suites NFC 34

35 Major Changes Subject Residential Care Facilities is the second subject area being covered in this presentation of the major changes to the 2010 National Construction Codes For more information about Classification of Care Facilities within Yukon, see Advisory #6 Classification of Care Facilities which explains the 4 Major Occupancy Groups 35

36 Residential Care Facilities Care Occupancy Group B, Div. 3 care occupancy New in the 2010 NBC Care occupancy means the occupancy or use of a building or part thereof where care is provided to residents. NBC Appendix A (1) Defined Terms for Care Occupancy 36

37 Residential Care Facilities Treatment Occupancy Treatment occupancy (Group B, Div. 2) (or B2 Full) means the occupancy or use of a building or part thereof for the provision of treatment and where overnight accommodation is available to facilitate the treatment. NBC Appendix A (1) Defined Terms for Treatment Occupancy 37

38 Residential Care Facilities Treatment Treatment means the provision of medical or other health-related intervention to persons, where the administration or lack of administration of these interventions may render them incapable of evacuating to a safe location without the assistance of another person. NBC Appendix A (1) Defined Terms for Treatment 38

39 Group B, Div. 3 (care occupancy) (or B3 Light) More stringent than Group C or Group A2 Part 3 compliance applies Sprinkler & Fire alarm system Less stringent than Group B, Div. 2 (or B2 Full) (treatment occupancy) Relaxations... Residential Care Facilities Main Requirements Yukon Classifies Care Facilities into 4 Major Occupancy Groups Family Dayhomes (Group C ) Part 9 Buildings Day Cares (Group A2 ) Part 3 Buildings Care Occupancies (Group B3 Light) Part 3 Buildings Treatment Occupancies (Group B2 Full) Part 3 Buildings 39

40 Residential Care Facilities Smoke Detector Relaxation... Permits the use of smoke alarms within sleeping rooms and suites of residential care facilities in lieu of smoke detectors. 40

41 Residential Care Facilities Sprinkler Relaxation NFPA 13R permitted for up to 3 storeys and 10 occupants in a B3 Care Occupancy NFPA 13D permitted with no more than 2 suites in the building & 5 residents in a B3 Care Occupancy 41

42 Residential Care Facilities Construction Relaxation Combustible construction permitted up to 3 storeys with limited occupant load in a B3 Care Occupancy 42

43 Residential Care Facilities Corridor Width Relaxation Corridor width reduction to 1100 mm & not 1650 mm as required in a Group B2 Occupancy, where the occupant load does not exceed 10 persons 43

44 Major Changes Subject Spatial Separation Residential Care Facilities Fire and Smoke Alarms Exit Signs Combustible Penetration (Fire Stop, Fire Block) Plenum Cables Stairs, Ramps, Handrails and Guards (Part 3 & 9) Secondary Suites NFC 44

45 Fire and Smoke Alarms Fire Protection Fire Alarm System Resolved Technical Differences between Part 9 and Part 3 45

46 Fire and Smoke Alarms Use and Egress Smoke Alarm Smoke Alarm shall be installed in every bedroom Fires in sleeping rooms are the second highest causes of fire deaths 46

47 Fire and Smoke Alarms Use and Egress Smoke Alarm Smoke Alarm shall meet the temporal pattern improve audibility and early detection 47

48 Fire and Smoke Alarms Use and Egress Smoke Alarm Smoke Alarm shall minimize potential tampering with smoke alarm (silencing) 48

49 Major Changes Subject Spatial Separation Residential Care Facilities Fire and Smoke Alarms Exit Signs Combustible Penetration (Fire Stop, Fire Block) Plenum Cables Stairs, Ramps, Handrails and Guards (Part 3 & 9) Secondary Suites NFC 49

50 Exit Signs Use and Egress Exit Signs green pictograms conforming to ISO standards conform to universal sign language independent internationally recognized harmonizing internationally 50

51 Exit Signs Use and Egress Exit Signs Recognizing that photoluminescent technology continues to function when building emergency power fails provides options to designers and easier installation, All exit signs need to be listed 51

52 Major Changes Subject Spatial Separation Residential Care Facilities Fire and Smoke Alarms Exit Signs Combustible Penetration (Fire Stop, Fire Block) Plenum Cables Stairs, Ramps, Handrails and Guards (Part 3 & 9) Secondary Suites NFC 52

53 Combustible Penetration New definitions Fire stop: a system comprised of material, component and means of support, used to fill gaps between fire separations, to fill gaps between fire separations and other assemblies, or used around items which wholly or partially penetrate fire separation. 53

54 Combustible Penetration Fire Stop 54

55 Combustible Penetration New definitions Fire block: a material, component or system installed in a concealed space in a building to restrict the spread of fire within that concealed space, or from that concealed space to an adjacent space. 55

56 Combustible Penetration Fire Block Fire Block at wall 56

57 Combustible Penetration Fire Protection Penetrations through Fire Separation Properly identify systems new definitions (fire block/fire stop) Clarifications how F- and FT-rating apply to fire stopping generalize explanation of cast-in-place sprinklers are exempted from having to be fire-stopped Penetrations in fire separation without FRR shall be smoke tight Relaxation: allow larger diameter combustible piping to penetrate a rated assembly 57

58 Combustible Penetration Penetrations Penetration of Wires/Cables and Outlet Boxes Single conductor metal sheathed cables > 25 mm can penetrate if: not grouped separated 300 mm 58

59 Combustible Penetration Penetrations by Water Closet Combustible Piping Penetrations Combustible drain piping is permitted to penetrate a horizontal fire separation provided it leads directly from a noncombustible water closet through a concrete floor slab. Therefore a combustible water closet drain is no longer permitted unless a Fire Stop System is used 59

60 Combustible Penetration Penetrations Through a Fire Separation it requires F rating = rating of closures Through a Firewall it requires FT rating = rating of Firewall 60

61 Major Changes Subject Spatial Separation Residential Care Facilities Fire and Smoke Alarms Exit Signs Combustible Penetration (Fire Stop, Fire Block) Plenum Cables Stairs, Ramps, Handrails and Guards (Part 3 & 9) Secondary Suites NFC 61

62 Plenum Cables Buildings of Noncombustible Construction Plenum cables FT-6 rating Buildings of Combustible Construction Plenum Cables FT-4 rating 62

63 Plenum Cables Exceptions cables and wires used for: signals for fire alarm security radio television 63

64 Fire Protection Plenum Cables and Wires Proliferation of cables and wires Combustible construction: FT-4 rating Noncombustible construction: FT-6 rating, or FT-4 rating when enclosed in noncombustible raceways. Difference between FT-6 and FT-4: FT-6 rated cable has limited smoke development characteristics 64

65 Major Changes Subject Spatial Separation Residential Care Facilities Fire and Smoke Alarms Exit Signs Combustible Penetration (Fire Stop, Fire Block) Plenum Cables Stairs, Ramps, Handrails and Guards (Part 3 & 9) Secondary Suites NFC 65

66 Stairs, Ramps, Handrails and Guards General Rationale Resolve Differences Between Parts 3 & 9 Buildings Changes Clarification as to where to measure height over stairs & tolerances Harmonize Rise and Run Dimensions For more information about Stairs, Ramps, Handrails and Guards, see our Advisories #1, #4 & #5 at: html 66

67 Stairs, Ramps, Handrails and Guards Landings in Garages 2005 NBC Landings were required at the top of stairs in attached garages 2010 NBC Requirements that apply to stairs, ramps, handrails and guards within dwelling units also now applies to stairs, ramps, handrails and guards within an attached garages. Landings are not required at the top of stairs in attached garages where the door opens away from the stairs, regardless of the number of risers. 67

68 Major Changes Subject Spatial Separation Residential Care Facilities Fire and Smoke Alarms Exit Signs Combustible Penetration (Fire Stop, Fire Block) Plenum Cables Stairs, Ramps, Handrails and Guards (Part 3 & 9) Secondary Suites NFC 68

69 Secondary Suites Rationale 2005 NBC (duplex/semi) too onerous too costly not uniform across Canada 2010 NBC Intent is provincial harmonization limit the size of secondary suites relax fire separation requirements add concept of "secondary suite" throughout Part 9 addresses fire separation, smoke tightness, sound and ventilation 69

70 Secondary Suites Approach Requirements for Secondary Suites were determined based on 5 principles: requirements for single dwelling units are adequate for houses with Secondary Suites reduction in performance acceptable trade-offs no change required increase in performance required Intent was to: accommodate the construction of Secondary Suites at a reasonable cost not compromising the health & safety of ALL the occupants 70

71 Secondary Suites Definition A Secondary Suite is a dwelling unit located in a building or portion of a building of residential occ. single real estate entity not more than two dwelling units... and common spaces where there are two dwelling units, one is a Secondary Suite with a prescribed floor area 80% of and max = 80 m²

72 Secondary Suites Appendix Note Secondary Suites: are typically created within an existing dwelling unit, commonly called a house may have more than one storey, be on the same level as the principal suite in the house or be above or below the principal suite in the house may include individual detached houses, semidetached houses and freehold row houses NBC Appendix A (1) Defined Terms for Secondary Suite 72

73 Secondary Suites Firewall Exception Party Walls on Property Line between Houses with Secondary Suites A party wall does not have to be a firewall, provided it is constructed as a fire separation (1 h FRR) where the party wall separates: two dwelling units with no dwelling unit above another, a dwelling unit and one house with a Secondary Suite and their common spaces, or two houses with Secondary Suites and their common spaces In buildings with more than 2 houses, a party walls shall be constructed as a firewall to create separate buildings, each having not more than two adjacent houses with a Secondary Suite. 73

74 Major Changes Subjects Spatial Separation Residential Care Facilities Fire and Smoke Alarms Exit Signs Combustible Penetration (Fire Stop, Fire Block) Plenum Cables Stairs, Ramps, Handrails and Guards (Part 3 & 9) Secondary Suites NFC 74

75 National Fire Code Construction and Demolition Sites Fire losses on construction sites are 6 times greater than for completed buildings Expand scope of Code to require protection of adjacent buildings and facilities Request active and/or passive fire protection systems for adjacent buildings and facilities exposed to fire originating from construction and demolition sites. e.g. water curtains, gypsum sheathing, temporary fire barrier, fire watch, etc. 75

76 National Fire Code Inside Building Storage Tanks for Combustible Liquids 2005 NFC does not apply to CSA-B139 appliances 2010 NFC now references CSA-B139 limits maximum tank size to 2500 L (5000 L aggregate) refers to NFC Storage tanks inside buildings are now permitted in all occupancies where combustible liquids are stored and used as fuel for Oil-burning equipment, Emergency generators, and Fire pumps. 76

77 National Fire Code Inside Building Storage Tanks for Combustible Liquids Current Table applies to industrial occupancies only New table lists maximum quantity of combustible liquids allowed in a storage room for all occupancies. Storage room needs to be protected by a fire suppression system. Required storage tank construction varies based on their capacity: Double-walled construction ( 2500 L and L), or Protected tank assembly in conformance with ULC-S655 standard (> L). Monitoring of the secondary containment for leakage 77

78 Increased demand dictates increased capacity Facilitate delivery in remote areas Increased capacity at fuel-dispensing stations for aboveground storage tanks Individual from to L, and Aggregate from to L. Compartmentalized storage tanks now treated as one tank to evaluate their capacity. National Fire Code Outside Storage Tanks flammable and combustible liquids 78

79 double-walled construction becoming good practice reduced costs (savings for leak detection) Harmonization across Canada, as in Yukon, ALL underground storage tanks and ALL underground piping is now required to be double-walled construction complete with sumps for inspection & monitoring reasons. New requirements & new definition for: Dispenser sump, Turbine sump. Spill containment sump, and Transition sump. National Fire Code Outside Storage Tanks flammable and combustible liquids 79

80 National Fire Code Relocation and Cross-Referencing Relocate building design requirements from the NFC into the NBC, Introduce cross-references in the NFC to new NBC provisions to maintain their applicability to existing buildings, and Create new Sections in the NBC to accommodate requirements from the NFC that cannot be incorporated in the existing NBC structure. For more information about the relocation and cross referencing of the changes to 2010 NBC & NFC, see tion_nfc_nbc.pdf 80

81 Outlook for 2015 Task Groups on CAM (Component Additive Method) Security Systems that Affect Egress Fire Alarms Way Guidance Systems Stairs, Guards and Railings Farm Building Code Smoke Tightness of Closures Use and Protection of Foamed Plastics Relocation and Cross-Referencing (Technical Issues) Next Code Cycle Address outstanding issues 81

82 Questions? 82

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