This map shows the  
different climate  
zones in  
Canada.  
Codes Regulations  
&
Canadian Code Updates:  
What You Need to Know  
Source: Reproduced with the permission of the Natural  
Research Council of Canada, copyright holder. The color  
coding has been added by Fenestration Canada.  
he recent updates to provincial (NBC) 9.36.5 offers both prescriptive per hour (ACH) value that allows for  
building codes in Canada are and performance compliance paths. the fenestration performance to be re-  
aggressive for fenestration prod- British Columbia uses the NBC 201 9.36 duced by one level.  
T
ucts, but long-term changes proposed with a modification that doesn’t allow  
The National Energy Code of Canada  
by Natural Resources Canada could be Energy Ratings (ER) numbers for com- for Buildings (NECB) includes two op-  
exceptionally stringent, according to pliance.ER is a value that shows the bal- tions for compliance: Prescriptive and  
Jeff Baker, president of WESTLab Can- ance between U-factor, solar heat gain performance. The NECB performance  
ada and technical consultant for Fenes- coefficient and air leakage,says Baker.A compliance path is similar to the res-  
tration Canada.  
higher number means a more efficient idential code. Baker said the proposed  
Baker discussed the changes during product. Ontario and Quebec have their building energy modeling allows for a  
a webinar about the Canadian Energy own energy codes. Alberta, Manitoba, large number of trade-offs. The details  
Codes and Energy Acts that was hosted New Brunswick and Nova Scotia use the can be found in Part 8 of NECB 2011  
by the American Architectural Manu- NBC 2010 Section 9.36. The Northwest or 2015.  
facturers Association (AAMA).  
Natural Resources Canada is propos- point.  
ing a national regulation on windows  
Territories will use Section 9.36 at some  
In the British Columbia Commercial  
Energy Code, prescriptive compliance  
Ontario’s energy code has both pre- is the same as NECB 2011, and so is  
in order to reduce energy use in build- scriptive and performance compliance performance compliance. The province  
ings and meet the requirements of the paths.A supplemental document,SB12, differs from NECB 2011 with the in-  
Pan-Canadian Framework on Clean covers all the compliance methods for troduction of step codes, which feature  
Growth and Climate Change. It calls residential buildings in Ontario.  
for an average U-factor of 1.6 by 2020. Ontario is proposing changing to that local municipalities can reference.  
By 2025, it seeks a U-factor of 1.2 for SB12 for 2020 and 2022. The 2020 There are sets of commercial step  
optional performance levels above code  
windows. By 2030, the plan demands changes would reduce U-factors and codes based on climate zones. Both  
a 0.8 U-factor for windows, and they increase ER values by one level. The use the standard of 3,000 heating de-  
must be able to be manufactured and 2022 changes would further reduce gree days or lower.One is for residential  
installed cost effectively.  
U-factors and increase ER values by occupancy; the other is for commercial  
The Canadian National Building Code one level, and reduce the air change occupancy.  
MurriocansetMPariua elefrt tboehinRd iCcoaden, whRich ereqsuiireds ethant rceseidesnceNs ooftPuUertpo RitcoovuClneroabdle etosMarias  
unprecedented destruction in withstand 140 mph winds, and in Category 4 winds.  
H
Puerto Rico after it pummeled 2016, those codes were amended to  
According to an article by ABC News,  
the island with Category 4 winds in require residences to withstand 145 Puerto Rico used the Uniform Build-  
September. Buildings were hit with mph winds. The code reads: “Build- ing Code from 1998 to 2011, which  
sustained winds at 155 mph when ing components, such as windows, required residences to withstand 125  
Maria made landfall, but many build- panels, doors, roof equipment, an- mph, or Category 3, winds. Most homes  
ings were not built to stand such high tennas and the architectural features are built to that standard, while many  
wind speeds.  
Puerto Rico has made strides in re- for the windloads specified.”  
cent years toward strengthening build- Unfortunately, these codes did not  
exposed to the wind shall be designed others were built illegally to no code at  
all, according to ABC.  
The storm could cost Puerto Rico  
ing codes. In 2011 it adopted nine apply to residences built before the between $45 and $95 billion dollars  
sections of the International Building new code was adopted, leaving most in damage, according to CNN. n  
24  
USGlass, Metal & Glazing | November 2017  
www.usglassmag.com  

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