SB 10 Flashcards
What is the purpose of MMA Supplementary Standard SB-10?
MMA Supplementary Standard SB-10 establishes energy efficiency requirements for the design and construction of buildings under the Ontario Building Code, aiming to improve energy performance beyond baseline standards, with specific compliance paths and updates effective as of December 22, 2016.
When did MMA Supplementary Standard SB-10 come into force?
It came into force on January 1, 2014, with the December 22, 2016 update and Minister’s Ruling MR-16-S-27 taking effect on January 1, 2017.
What is the significance of the date December 31, 2017, in SB-10?
Permits applied for on or before December 31, 2017, can comply with Division 3 or Division 5 as they read on December 31, 2016, providing a transition period for updated requirements effective after that date.
What does CO2e stand for in SB-10?
Carbon dioxide equivalent (CO2e) is a measure used to compare the impact of various greenhouse gases based on their global warming potential, as defined in Division 1, Section 1.2.1.2.(2).
What buildings does Division 2 of SB-10 apply to?
Division 2 applies to construction for which a permit was applied for before January 1, 2017, requiring an additional minimum 13% increase in energy efficiency levels per Clause 12.2.1.2.(2)(a) of the Building Code.
Name the four compliance paths in Division 2 for energy efficiency design.
- Conform to ANSI/ASHRAE/IES 90.1-2010 as modified by Chapter 2. 2. Exceed ANSI/ASHRAE/IES 90.1-2010 by at least 5%. 3. Exceed the 1997 MNECB by at least 25% (revoked January 1, 2018). 4. Conform to the 2011 NECB as modified by Chapter 3.
What happens to the 1997 MNECB compliance path after December 31, 2017?
The 1997 MNECB compliance path, requiring a 25% improvement, is revoked on January 1, 2018, and is no longer a design option after December 31, 2017, per Minister’s Ruling MR-16-S-27.
What are the CO2e emission factors for natural gas and grid-delivered electricity in Division 2?
Natural Gas: 0.191 kg/kWh; Grid-Delivered Electricity (marginal based on natural gas): 0.400 kg/kWh, as per Table 1.1.2.2.
What climatic zones are defined in Division 2, and how are they determined?
Zone 5: HDD < 4000°C; Zone 6: 4000°C ≤ HDD < 5000°C; Zone 7: HDD ≥ 5000°C. Determined using heating degree-days (HDD) from Table 1.2 of SB-1.
What modification does SB-10 make to Section 5.4.3 of ANSI/ASHRAE/IES 90.1-2010?
Adds Section 5.4.3.1.A, deeming air barrier materials/assemblies/systems compliant with Part 5 of the Building Code as compliant with air leakage requirements.
How does SB-10 adjust building envelope requirements for electric space heating in Division 2?
Buildings using electric space heating must comply with Table SB 5.5-7 (Climate Zone 7) requirements, regardless of their actual climatic zone (Section 1.1.1.4.(1)).
What is the maximum U-value for insulation entirely above deck roofs in Climate Zone 5 (nonresidential) per Table SB 5.5-5?
U-0.22 (SI units), equivalent to a minimum RSI-value of 4.4 ci.
What exception applies to thermal bridging in Section 5.5.3.7 of Chapter 2?
Thermal bridging effects are waived for continuous steel shelf angles with a thermal break or load-bearing elements where a thermal break cannot be achieved.
What enhancement does Chapter 3 make to the 2011 NECB for electric space heating?
Buildings in Zones 5, 6, 7A, or 7B using electric space heating must meet Zone 7B building envelope requirements, regardless of their actual zone (Section 1.1.1.6.(1)).
What is the maximum SHGC for vertical fenestration in Zone 5 (residential) per Table 3.2.2.3.A?
0.40 (no requirement for Zone 8).
How does SB-10 modify the 2011 NECB’s administrative provisions?
Division C of the 2011 NECB is replaced with the administrative provisions of the Building Code Act, 1992, and Division C of the Building Code (Section 1.1.1.5).
What buildings does Division 3 of SB-10 apply to?
Division 3 applies to construction for which a permit was applied for after December 31, 2016, with a transition allowing compliance with the 2016 version until December 31, 2017.
What are the three compliance paths in Division 3 for energy efficiency?
- ANSI/ASHRAE/IES 90.1-2013 with Chapter 2 modifications. 2. ANSI/ASHRAE/USGBC/IES 189.1-2014 (Section 7, excluding certain sections). 3. 2015 NECB with Chapter 3 modifications.
What is the CO2e emission factor for electricity in Division 3 (2014 average)?
0.050 kgCO2e/kWh, based on the 2014 average consumption intensity factor (Table 1.1.2.2).
What is the peak electric demand requirement for buildings complying with the 2015 NECB path in Division 3?
It must not exceed the level achieved by complying with Sections 1 to 7 of the 2015 NECB and Chapter 3 (Section 1.1.2.3.(2)).
What is the minimum energy recovery effectiveness required for systems in Chapter 2 of Division 3?
At least 55% effectiveness, per Section 1.1.1.5.(4).
What is the maximum U-value for mass walls (nonresidential) in Climate Zone 6 per Table SB 5.5-6-2017?
U-0.273 (SI units), with a minimum RSI-value of 3.3 ci.
What lighting power density is allowed for an office building using the Building Area Method in Table SB 9.5.1-2017?
8.5 W/m² (0.79 W/ft²).
What exemption applies to automatic receptacle controls in Section 8.4.2 of Chapter 2?
They do not apply to private and open offices (Section 1.1.1.8.(1)).
What is the maximum overall thermal transmittance for walls in Zone 6 per Table SB 3.2.2.2?
0.247 W/(m²·K).
What is the minimum efficiency requirement for gas boilers < 88 kW in Chapter 3?
90% AFUE (Annual Fuel Utilization Efficiency), per Table SB 5.2.12.1.A-2017.
What is the exterior lighting power allowance for walkways less than 3 m wide in Zone 2 per Table SB 4.2.3.1.-D-2017?
1.6 W/m (0.50 W/ft).
What buildings are exempt from whole building energy monitoring requirements in Section 1.1.1.11?
Buildings with a floor area less than 2320 m², per Section 7.2.1.1.(3)(a).
What buildings does Division 4 apply to?
Non-residential buildings within Part 9 of the Building Code, without electric space heating, intended for continuous winter occupancy, with permits applied for before January 1, 2017.
What is the minimum RSI-value for insulation above deck roofs in Zone 1 per Table 1.1.1.2 (SI)?
5.28 ci (U-0.181 max).
What is the requirement for heat recovery ventilators in Division 4?
Required with 50% recovery effectiveness if outdoor air supply exceeds 1400 L/s and 70% of system supply air (Section 1.1.1.4.(6)).
What is the interior lighting power density for a retail building in Division 4?
15.0 W/m² (Table 1.1.1.8).
What buildings does Division 5 apply to?
Non-residential buildings within Part 9 of the Building Code, without electric space heating, intended for continuous winter occupancy, with permits applied for after December 31, 2016.
What is the minimum RSI-value for below-grade walls in Zone 2 per Table 1.1.1.2 (SI)?
3.5 ci (C-0.284 max).
What is the requirement for automatic daylight sensing controls in Division 5?
Required for general lighting with total input power ≥ 150 W where skylights or fenestration ≥ 11 m² exist, reducing power via dimming or control points (Sections 1.1.1.9.(10)-(12)).
What is the exterior lighting power allowance base value in Division 5?
400 W (Table 1.1.1.10).
