October 28 th 2011 IRC - Codes Report

2 Codes Update Outline –Code Development Update –Project Updates Policy-Related Activities (Executive Committee) Part 9 related work –Joint Tasks with Other Committees –Energy efficiency in Housing and Small Buildings –Upcoming Meetings – Schedule

3 Code Development Update Publication Dates –NECB is being published – November 18 th, 2011 –Publication alignment for 2015 codes under discussion First Public Review towards 2015 NBC, NFC, NPC –Right Now – –October 24 th to December 16 –1 Part 9 Interim change: Reference ASTM Nailing Standard –1 Part 9 change: Anchorage requirement held back Public Review on Energy Delayed –January 9 th to February 24 th 2012

4 Policy–Related Activities Currently Active Tasks –New Objective – Water-Use Efficiency (TG Scoping) –Renewal of the Farm Building Code (TG Scoping) –Sprinklers, Stairs, Guards, Fire Performance of Houses –Removal of an Objective Activities about to get underway … –Energy Target for the NECB (CCBFC ballot to approve task) –TG on Review of the Code Development System –TG on Harmonization (Provincial-National) –TG on Impact Analysis (Phase 2)

5 Policy–Related Activities Sprinklers –Request: EC asks SCHSB and SCFP for assistance to inform policy considerations –Approach: Joint HSB/FP Task Group TG Mandate: Review cost/benefit data & asses technical merit TG Status: SC review and approval of Terms of Reference Step Dimensions (7”-11”) –Request: EC asks SCHSB and SCUE for assistance to inform policy considerations –Approach:Subtask group of existing Joint Task Group on Stairs sTG Mandate:Review of benefit studies & Developing cost impact sTG Status: SC review and approval of Terms of Reference

6 Policy–Related Activities Climbable Guards –Direction: EC will communicate CCBFC concerns to Standing Committees EC will clarify that new code change request can be considered Fire Performance of Houses –Direction: EC will ask SCHSB for assistance (with help from FP) to inform policy considerations Assess impact of research findings on current code & objectives –Approach: HSB TG with expertise from FP Mid-Rise Construction (not Part 9)

7 Part 9 Work Joint Tasks with Other Committees (ES – Part 5) –EIFS Progress: reviewed standards (4 meetings) Next meeting: January 19 th 2012 Approach: –reference S716.1, 2 and 3 standards in a separate Subsection in 9.27 –Add rainscreen-EIFS as acceptable option in Outstanding work: –review , and for conflicts –cross-references to »9.25. – vented cavity »9.10. – foamed plastics » – lateral bracing

8 Part 9 Work Joint Tasks with Other Committees (ES – Part 5) –Sound Transmission between Dwelling Units Progress: 3 meetings Next Meeting: January 2012 Approach Flanking noise will be addressed by –Existing Sound and fire Tables –additional information in tables

9 Part 9 Work Joint Tasks with Other Committees (ES – Part 5) –Roofing, Waterproofing, Dampproofing Standards Progress: Developed code language to replace application standards - SCES rejected approach Next meeting: January 2012 Approach: –Replace material standards –Find ASTM/International equivalents for application standards Outstanding work: –Identify and review potential standards

10 Part 9 Work – Energy Efficiency Executive Committee – Guidance –Overall Cost-benefit Calculations: Whole house analysis – YES Simple Payback – NO Value Index – NO Incremental Construction ($) & Energy Benefit ($) –Division C – reporting requirements Compliance Report required Compliance Report can be generated by HOT2000 “check-list” like approach –Development of Public Consultation Document

11 Part 9 Work – Energy Efficiency New subjects or significant revisions –Changes to Application

12 Part 9 Work – Energy Efficiency New subjects or significant revisions –Changes to attic requirements? –Site-built windows ? –HVAC duct alternative ! –Simple Trade-Off Examples ! –Simple Trade Off Limits ? Opaque-to-Opaque option –Difficulties to characterize attic spaces (roof shapes, styles) –Limits may have to be introduced (vertical/vertical only, certain minimum geometries) Transparent-to-Transparent –Limit on solar heat gain coefficient –maximum allowable increase of U-value

13 Part 9 Work – Energy Efficiency Changes to attic requirements –Intent to avoid requiring high heel trusses –Modeling done without high heel trusses –Currently proposed Slope not more than 1200mm projection Perimeter at least at Wall R-value –Current Practice Slopes 5/12 to 7-12 are most common 30% - 40% of truss designs already comply Mostly affects low slopes –New Proposal (to be discussed) Regulate truss minimum heel height?

14 Part 9 Work – Energy Efficiency Site-built windows –Introducing prescriptive alternative –To be discussed ConstructionMax. U Req’d U For climate zones 4 and 5: Non-metallic frames + triple glazing, 12.7 mm spacer double glazing, 1 low-e (e ≤ 0.10), argon, non-metallic spacer 2.02 For climate zones 6 and 7a: Non-metallic frames + triple glazing, 12.7 mm spacer, argon, 1 low-e (e ≤ 0.20) triple glazing, 12.7 mm spacer, 2 low-e (e ≤ 0.20) 1.74 For climate zones 7b and 8: Non-metallic frames + triple glazing, 12.7 mm spacer, 2 low-e (e ≤ 0.10) triple glazing, 12.7 mm spacer, argon, 2 low-e (e ≤ 0.20) 1.57

15 Upcoming Meetings – Schedule Standing Committee on Housing and Small Buildings –November – Vancouver – Part 9 Energy Efficiency –February 2012 – Ottawa – Non-energy subjects –April/May 2012 – Ottawa – Part 9 Energy Efficiency Standing Committee on Energy Efficiency in Buildings –November 9-10 – Ottawa – Part 9 Energy Efficiency sTG – Code Consolidation (EEHSB) –March 2012 – Ottawa – Review of Public Review Comments Commission on Building and Fire Codes –July 2012 – TBD – Approval of Part 9 Energy Efficiency