[Bldg-sim] 90.1 Section 5.6 envelope trade off

[Nick Caton]

If I'm not mistaken, the trade-off approach is what COMcheck's (free software) is built around for envelope compliance calculations.  Don't believe it gets much easier ;).

~Nick

[cid:489575314 at 22072009-0ABB]

NICK CATON, P.E.
SENIOR ENGINEER

Smith & Boucher Engineers
25501 west valley parkway, suite 200
olathe, ks 66061
direct 913.344.0036
fax 913.345.0617
www.smithboucher.com

From: bldg-sim-bounces at lists.onebuilding.org [mailto:bldg-sim-bounces at lists.onebuilding.org] On Behalf Of Chris Jones
Sent: Thursday, June 14, 2012 1:26 PM
To: Christian Cianfrone
Cc: bldg-sim at lists.onebuilding.org
Subject: Re: [Bldg-sim] 90.1 Section 5.6 envelope trade off

I have been using ENVSTD for years.  The problem is that the Ontario Building Code has revised the envelope prescriptive requirements to hybrid values that are not matched by the current and past versions of ENVSTD.  Ideally one would get the source code and modify the lookup tables then recompile but I am not having any luck with that concept.

I have heard that the the ENVSTD developers are working on a version for Ontario but who knows how long that might take.  In the meantime, the cost of building permits goes up on July 12 so lots of developers are scrambling to get permits before then.


At 02:11 PM 14/06/2012, Christian Cianfrone wrote:

Chris,

If I understand your intent correctly, I would recommend using ENVSTD.  It makes the trade-off method less painful.  The software comes packaged with the 90.1 User's Manual.


Christian Cianfrone, M.A.Sc., P.Eng., LEED(r) AP BD+C
Principal, Building Energy Specialist
ccianfrone at morrisonhershfield.com<mailto:email at morrisonhershfield.com>

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Suite 310, 4321 Still Creek Drive  |  Burnaby, BC  V5C 6S7
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From: bldg-sim-bounces at lists.onebuilding.org<mailto:bldg-sim-bounces at lists.onebuilding.org> [ mailto:bldg-sim-bounces at lists.onebuilding.org] On Behalf Of Chris Jones
Sent: Thursday, June 14, 2012 9:18 AM
To: bldg-sim at lists.onebuilding.org<mailto:bldg-sim at lists.onebuilding.org>
Subject: Re: [Bldg-sim] 90.1 Section 5.6 envelope trade off

You are likely correct, I can select, copy and paste all the equations and coefficients from Appendix C into a text document.  Then it's a matter of creating a spreadsheet or Perl program to do the calculations.

At 08:46 AM 14/06/2012, Leonard Sciarra wrote:

FYI - Appdx c is being re-written, for 90.1-2013.  When I get back to internet connectivity I can give you the addendum letter.  The goal was to streamline the baseline building generation, even automate it.

As for the current Appdx c their is no document u seek that I know exists. But it reads pretty clearly, ( as everything feeds into one equation ) so I would just go all old school and write them down.  It's only about 10 or 15 or so.

Sent from my HTC on the Now Network from Sprint!

----- Reply message -----
From: "Chris Jones" <cj at enersave.ca<mailto:cj at enersave.ca>>
Date: Wed, Jun 13, 2012 10:41 pm
Subject: [Bldg-sim] 90.1 Section 5.6 envelope trade off
To: " bldg-sim at lists.onebuilding.org<mailto:bldg-sim at lists.onebuilding.org>" < bldg-sim at lists.onebuilding.org<mailto:bldg-sim at lists.onebuilding.org>>

Is there any way to obtain all the coefficients listed in APPENDIX C,
the methodology for the envelope trade-off calculations?  Even better
would be a text file with all the equations and the coefficients.



 >>
Christopher Jones, P.Eng.
Suite 1801, 1 Yonge Street
Toronto, ON M5E1W7
Tel. 416-203-7465
Fax. 416-946-1005
email cj at enersave.ca<mailto:cj at enersave.ca>

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>>
Christopher Jones, P.Eng.
Suite 1801, 1 Yonge Street
Toronto, ON M5E1W7
Tel. 416-203-7465
Fax. 416-946-1005
email cj at enersave.ca<mailto:cj at enersave.ca>

>>
Christopher Jones, P.Eng.
Suite 1801, 1 Yonge Street
Toronto, ON M5E1W7
Tel. 416-203-7465
Fax. 416-946-1005
email cj at enersave.ca<mailto:cj at enersave.ca>
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