I have a question about the correct Climate Zone for 90.1-2010. This is for Toronto, Ontario. Table B1-2 lists Toronto in Climate Zone 6. Table D-2 shows HDD = 7306 for Toronto.
But the ASHRAE Fundamentals 2017 and the Ontario Building Code show HDD = 7006 for Toronto. That would put Toronto in Climate Zone 5.
Therefore, I am wondering if I should use Climate Zone 5 for determining the baseline model envelope characteristics for a LEED v4 submission? Or would that bring the wrath of the reviewer?
Christopher R. Jones, P.Eng.
Technical Specialist
Sustainability & Energy
[cid:image001.png at 01D307A6.548D5370]
T +1 416-644-0252
2300 Yonge Street, Suite 2300
Toronto, ON M4P 1E4 Canada
wsp.com
Please consider the environment before printing...
________________________________
You are receiving this communication because you are listed as a current WSP contact. Should you have any questions regarding WSP's electronic communications policy, please consult our Anti-Spam Commitment www.wsp.com/casl
----------------------------------------------------------------------------------------------------------------------------------------
Vous recevez cette communication car vous faites partie des contacts de WSP. Si vous avez des questions concernant la politique de communications ?lectroniques de WSP, veuillez consulter notre Engagement anti-pourriel www.wsp.com/lcap
______________________________________________________________________
NOTICE: This communication and any attachments ("this message") may contain confidential information for the sole use of the intended recipient(s). Any unauthorized use, disclosure, viewing, copying, alteration, dissemination or distribution of, or reliance on this message is strictly prohibited. If you have received this message in error, or you are not an authorized recipient, please notify the sender immediately by replying to this message, delete this message and all copies from your e-mail system and destroy any printed copies.
Thank you Rahul,
Standard 169-2013 shows Toronto, Ontario in Climate Zone 5A versus 90.1-2013 showing 6A.
Christopher R. Jones, P.Eng.
Technical Specialist
Sustainability & Energy
[cid:image001.png at 01D307B8.C9625D00]
T +1 416-644-0252
2300 Yonge Street, Suite 2300
Toronto, ON M4P 1E4 Canada
wsp.com
Please consider the environment before printing...
I just so happen to have Fundamentals 2017 open at this time and saw that the Climatic Data for WMO#715080 HDD65 is 6333, CDD50 is 2799.
I think if you have a leg to stand on, then stand on it. As long as you are justifying your criteria and use consistently through your documentation, then I'd think the reviewer would acknowledge your due diligence and agree with you on this.
Be Sustainable -- Never let today use up tomorrow!.