CODES CANADA What do you need to know? - …

1 What do you need to know? Nedjma Belrechid, Technical Advisor November 30, 2016 An update on Part 9 of the National Building Code CODES CANADA Outline About NRC Changes in the NBC 2015 Part 9 Housing and small buildings 2 Multidisciplinary expertise Engineering -Construction Life Sciences Emerging technologies 3 4 $ Million Budget 2015-2016 Over 3,500 employees Operating in every province in CANADA Unique facilities national assets Global reach 100 years of Innovation IRAP Research facilities NRC Construction since 1947 5 Building Envelope & Materials Building Regulations Civil Engineering & Infrastructure Intelligent Building Operations Fire Safety Technical & Testing Services 6 Part 9 Housing and small buildings Stairs, ramps, handrails and guards Lateral loads (seismic) Low permeance materials Low-exposure doors Snow loads Protection near cooktops Airborne sound transmission Roofing, dampproofing and waterproofing Exterior insulation and finish systems (EIFS) Work in progress 7 Stairs 8 NBC 2010 NBC 2015 Run (min.)

2 210 mm (8 in.) 254 mm (10 in.) Rise (max.) 200 mm (7 in.) 200 mm (7 in.) RUN 210 RUN 254 Stairs Homeowners wanted more spiral stairs Now! Permitted use - As secondary stairs - Used by less than 3 people - Not in exits 9 Stairs Code did not permit mixed treads between floor levels Now! flexibility to mix in dwelling units - Both tapered and rectangular - In both directions 10 Ornamental guards Restricted choices Now! permitted when less than one floor-to-floor elevation ( m) 11 Structural design Lateral loads (Seismic) 12 Structural design Lateral loads (Seismic) Prescriptive solutions for all areas in CANADA Enhanced lateral resistance - Thicker sheathing - Perpendicular blocking between wall studs - Nailing of splices in wall top plates - Anchor bolts -With reduced spacing 13 Low permeance materials Water vapour permeance - < 60 ng/(Pa s m ) Air leakage characteristics - < L/(s m ) @ 75 Pa Requirements - Exterior insulation in relation to climate zones - Compliance with Table 14 Low permeance materials 15 Water vapour permeance for panel-type materials (ng/(Pa s m )) Air leakage characteristic for panel-type materials (L/(s m ) @ 75 Pa) 0 0 60 300 30 Table Extruded (XPS) polystyrene Type I Expanded (EPS)

3 Polystyrene Type II fibrous insulations Polyurethane spray foam low density Polyurethane spray foam medium density Foil-faced polyisocyanurate I O Low permeance materials Exterior insulated sheathing products - With water vapour permeance of 30 60 ng - Minimum R4 insulation value - In locations with HDD1 6000 16 0 0 60 300 30 Table Revised exemption < 30 ng/(Pa s m ) +R4 < 6000 HDD 1 HDD: heating degree-day(s) Water vapour permeance for panel-type materials (ng/(Pa s m )) Air leakage characteristic for panel-type materials (L/(s m ) @ 75 Pa) Climatic zones based on HDD 17 Average annual heating degree-day(s) ( C) Main entrance doors Main entrance doors protected from precipitation Limited water (LW) rated doors - Standard AAMA/WDMA/CSA 101 18 LW LW Snow loads CODES CANADA Build on Expertise 19 Microwave ovens and range hoods Vertical clearances - Combustible framing - Finishes - Cabinets over cooktops Not applied to microwave ovens and range hoods 20 Airborne sound transmission Direct vs.

4 Flanking 21 Airborne sound transmission Compliance Same level of performance Three compliance paths - Measurement - Look up tables (existing fire and sound Tables) - New! Detailed and simplified design methods 22 NRC Guide Calculating airborne sound transmission Step-by-step explanations Simplified case EXAMPLE Rooms side-by-side Wood-framed floors and walls Illustration for this case Junction 1&3 of loadbearing separating wall with floor and ceiling. (Side view) Junction 2 or 4 of separating wall with abutting side walls with side walls framing continuous across junction and gypsum board terminating at separating wall (Plan view) Separating wall assembly with single row of 38 mm x 89 mm wood studs spaced 400 mm , with 89 mm thick absorptive material2filling the inter-stud cavities resilient metal channels on one side, spaced 610 mm 1 layer of 16 mm fire-rated gypsum board attached to the resilient channels and 2 layers screwed directly to framing on the other side Bottom Junction1 (separating wall and floor) with.

5 Floor framed with 305 mm wood I-joists spaced 400 mm , with joists oriented perpendicular to separating wall but not continuous across junction, and 150 mm thick absorptive material2 in cavities subfloor on both sides of oriented strand board (OSB) 19 mm thick floor topping of 19 mm OSB mechanically fastened over subfloor Top Junction 3 (separating wall and ceiling) with: ceiling framed with wood I-joists(details same as for bottom junction) with 150 mm thick absorptive material2 in cavities between joists ceiling (1 layer of 13 mm regular gypsum board) screwed directly to bottom of ceiling framing Side Junctions 2&4 (separating wall and abutting side walls) with: 1 layer of 16 mm fire-rated gypsum board on side walls attached directly to framing and terminating at the separating wall; side wall framing with single row of wood studs spaced 400 mm with absorptive material2 in cavities side wall framing structurally-connected to the separating wall, but continuous across junction (as illustrated) Note: For path/surface designations in the procedure below, treat the room at left as the source room (surfaces D and F) Direct and Flanking Sound Transmission: Path Path STC / ASTC Direct (Path Dd through separating wall).

6 53 Bottom Junction 1, Flanking STC (paths Ff = 53, Df=56, Fd=57) 50 Side wall Junction 2, Flanking STC (paths Ff =70 , Df=68, Fd=69) 64 Top Junction 3, Flanking STC (paths Ff =65, Df=64, Fd=79) 62 Side wall Junction 4, Flanking STC (paths Ff =70, Df=68, Fd=69) 64 Combined Transmission via all Flanking Paths 49 Combined (all paths) ASTC 48 23 Airborne sound transmission Compliance Web application Optimize designs Simplify use and increase market adoption Free with login 24 Roofing, waterproofing and dampproofing CGSB material standards - Delete obsolete standards - Replace with ASTM where acceptable - Keep CGSB standards where no replacements are available 25 Roofing, waterproofing and dampproofing CGSB installation standards - Delete and replace with prescriptive requirements 26 Exterior Insulation and Finish Systems (EIFS) New! Part 9 address materials, installation and design Reference to standards Limitations - 10 mm geometrically defined drainage cavity width - Minimum 13% open 27 Work in progress - TG on Basement 28 Work in progress 29 Work in progress 30 Work in progress 31 Work in progress 32 Work in progress 33 Work in progress - Part 9 User s Guide 34 Work in progress 35 To receive a copy of this presentation, please visit the NRC booth #544 Thank you!

7 Nedjma Belrechid, Technical Advisor @NRC_CNRC and @CNRC_NRC#TheBuildingsShow