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    <font size="+1">I think what is being forgotten is "intent", and the
      accuracy of your model.  So for intent the desire of the powers
      that be is that smart design be used to reduce the energy
      consumption of buildings.  You should not be manipulating the
      "system" to take credit for something which is not really a
      credit.  Your model should be as accurate as you can possibly make
      it with reasonable effort.  U-value construction is not accurate,
      all buildings have mass.  Mass serves to shave peaks.  When you
      have a building modelled with no mass as soon as the sun hits it
      you will have a cooling load.  With U-value construction the heat
      hitting the building is immediately loaded on to the cooling
      system at 100%.  This doesn't happen in reality and you will
      oversize your cooling system.  Therefore you have designed an
      inefficient system, you are costing your client money because they
      have to buy and operate a bigger cooling system than required. 
      Logic and good modelling dictate you account for mass.  The
      baseline is a "standard" building construction in use at this time
      and that is defined, "lightweight steel construction".  You don't
      get credit for the mass of this building.  However if you start
      adding mass strategically to further load shift your peaks you
      should be able to take credit for that.  Besides U-value
      construction is the old school, brute force technique when energy
      was cheap and we used spread sheets and calculators.  eQuest
      allows us to accurately predict the mass effect of a building and
      we have the computing power to run this program sitting on our
      desk.  A good modeller is required to use all the tools at their
      disposal to create the best base model they can so that the
      project people can assess different techniques to reduce the
      energy usage of the building and the economic costs of doing
      this.  I think it is pretty obvious the evaluator will reject a
      model not done layer by layer.  They can't easily check the base
      construction, the U-value method is not accurate and they are
      overloaded.  So it's file 13 and on to the next project.<br>
      Bruce Easterbrook P.Eng.<br>
      Abode Engineering </font><br>
    <br>
    On 20/06/2011 09:03 AM, Bishop, Bill wrote:
    <blockquote
cite="mid:247F8F3A32315040A92C035CB2B4E5502388B4@PATHMAIL2.pathfinderengineers.com"
      type="cite">
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        <p class="MsoNormal"><span style="font-size: 11pt; font-family:
            "Calibri","sans-serif"; color: rgb(31,
            73, 125);">Like Pasha mentioned, if you use layer-by-layer
            method in the proposed, you should use the same method in
            the baseline, unless you want to argue that “lightweight” <i>requires
            </i>the use of the U-value construction method. I don’t see
            what advantage that serves, other than helping you avoid the
            time of creating baseline envelope constructions. While
            “lightweight” is not defined in 90.1, the baseline layer
            materials and thicknesses are described in A3, so if you use
            the layer-by-layer method for both baseline and proposed,
            and if there is a difference in the overall mass of each
            wall construction, the modeling output will reflect that
            difference. Both baseline and proposed constructions will
            have “mass”, and if the proposed construction is optimized,
            there will be energy savings.<o:p></o:p></span></p>
        <p class="MsoNormal"><span style="font-size: 11pt; font-family:
            "Calibri","sans-serif"; color: rgb(31,
            73, 125);"><o:p> </o:p></span></p>
        <p class="MsoNormal"><span style="font-size: 11pt; font-family:
            "Calibri","sans-serif"; color: rgb(31,
            73, 125);">The eQUEST help menu item for “EXTERIOR-WALL  and
            ROOF” states that using LAYERS rather than U-VALUE can
            result in greater computational time, but gives more
            accurate results. Computational time is at the bottom of my
            eQUEST concerns. I have not compared modeling results of
            LAYERS vs. U-VALUE. Delayed construction appears to be
            required by Appendix G, is supposedly more accurate, and I
            don’t see a good reason <i>not</i> to use it.<o:p></o:p></span></p>
        <p class="MsoNormal"><span style="font-size: 11pt; font-family:
            "Calibri","sans-serif"; color: rgb(31,
            73, 125);"><o:p> </o:p></span></p>
        <p class="MsoNormal"><span style="font-size: 11pt; font-family:
            "Calibri","sans-serif"; color: rgb(31,
            73, 125);">Billzebub<o:p></o:p></span></p>
        <p class="MsoNormal"><span style="font-size: 11pt; font-family:
            "Calibri","sans-serif"; color: rgb(31,
            73, 125);"><o:p> </o:p></span></p>
        <p class="MsoNormal"><span style="font-size: 11pt; font-family:
            "Calibri","sans-serif"; color: rgb(31,
            73, 125);"><img id="Picture_x0020_1"
              src="cid:part1.07000408.05050501@bellnet.ca"
              alt="Signature in jpg form" height="123" width="496"><o:p></o:p></span></p>
        <p class="MsoNormal"><span style="font-size: 11pt; font-family:
            "Calibri","sans-serif"; color: rgb(31,
            73, 125);"><o:p> </o:p></span></p>
        <div style="border-right: medium none; border-width: 1pt medium
          medium; border-style: solid none none; border-color: rgb(181,
          196, 223) -moz-use-text-color -moz-use-text-color; padding:
          3pt 0in 0in;">
          <p class="MsoNormal"><b><span style="font-size: 10pt;
                font-family: "Tahoma","sans-serif";">From:</span></b><span
              style="font-size: 10pt; font-family:
              "Tahoma","sans-serif";">
              <a class="moz-txt-link-abbreviated" href="mailto:equest-users-bounces@lists.onebuilding.org">equest-users-bounces@lists.onebuilding.org</a>
              [<a class="moz-txt-link-freetext" href="mailto:equest-users-bounces@lists.onebuilding.org">mailto:equest-users-bounces@lists.onebuilding.org</a>] <b>On
                Behalf Of </b>Pasha Korber-Gonzalez<br>
              <b>Sent:</b> Saturday, June 18, 2011 4:39 PM<br>
              <b>To:</b> eQUEST Users List<br>
              <b>Subject:</b> Re: [Equest-users] LEED Review Comment on
              U-Value Input Method<o:p></o:p></span></p>
        </div>
        <p class="MsoNormal"><o:p> </o:p></p>
        <div>
          <p class="MsoNormal">Following the other comments on this, I
            am confused and worried too that if they are requiring to
            simulate mass in the baseline, then how could we use Mass
            constructions as "passive" design strategies and take credit
            for this type of ECM?<o:p></o:p></p>
        </div>
        <div>
          <p class="MsoNormal"> <o:p></o:p></p>
        </div>
        <div>
          <p class="MsoNormal">Directly from what I was reading in the
            2007 code: Table G3.1.5-Baseline Building Enevelope<o:p></o:p></p>
        </div>
        <div>
          <p class="MsoNormal"><em>Opaque Assemblies.  Opaque assemblies
              used for new building or additions shall conform with the
              following common, lightweight assembly types and shall
              match the appropriate assembly maximum U-factors in Tables
              5.5-1 through 5.5-8:</em><o:p></o:p></p>
        </div>
        <div>
          <p class="MsoNormal"> <o:p></o:p></p>
        </div>
        <div>
          <p class="MsoNormal">Doesn't the reference to "lightweight"
            assemblies mean that you don't have to account for thermal
            lags (massing)?   This has always been my interpretation. 
            Therefore, when it comes to modeling the U-values for the
            assemblies with the U-value method versus the layer method
            would be acceptable for your baseline simulations.  Where
            there is no requirement to show any type of massing effects
            it shouldn't matter if you choose to use the U-value input
            method or the layer-by-layer method.<o:p></o:p></p>
        </div>
        <div>
          <p class="MsoNormal"> <o:p></o:p></p>
        </div>
        <div>
          <p class="MsoNormal">But--it is important for the simulator to
            understand that when using eQuest (I can't speak for other
            simulation tools); the input method has to be matched in
            both the baseline and proposed.  You can't choose U-value
            input for the baseline and layer-by-layer for the proposed,
            you have to use the "apples-to-apples" approach for both
            models.<o:p></o:p></p>
        </div>
        <div>
          <p class="MsoNormal"> <o:p></o:p></p>
        </div>
        <div>
          <p class="MsoNormal">It will be a big issue if GBCI mandates
            that we have to use only layer-by-layer inputs for
            compliance where Appendix G is clearly stating that there is
            no need to account for thermal lag in the baseline building
            as it states "lightweight" construction.  Any type of
            thermal lag characteristics in lightweight construction are
            negligible to the performance of such constructions as
            required by Appendix G baseline inputs.<o:p></o:p></p>
        </div>
        <div>
          <p class="MsoNormal"> <o:p></o:p></p>
        </div>
        <div>
          <p class="MsoNormal">pkg<o:p></o:p></p>
        </div>
        <div>
          <p class="MsoNormal"> <o:p></o:p></p>
        </div>
        <div>
          <p class="MsoNormal"> <o:p></o:p></p>
        </div>
        <div>
          <p class="MsoNormal"><br>
            <br>
             <o:p></o:p></p>
        </div>
        <div>
          <p class="MsoNormal">On Fri, Jun 17, 2011 at 3:23 PM, Carol
            Gardner <<a moz-do-not-send="true"
              href="mailto:cmg750@gmail.com">cmg750@gmail.com</a>>
            wrote:<o:p></o:p></p>
          <p class="MsoNormal">I'll bite. What extends it to the
            baseline? I still see that it just says to credit it to the
            proposed building. Wasn't this language created to guide
            people to the fact that even if mass was added to a steel
            framed building it still fell under the "steel framed"
            category and not the mass? <o:p></o:p></p>
          <div>
            <div>
              <p class="MsoNormal" style="margin-bottom: 12pt;"><o:p> </o:p></p>
              <div>
                <p class="MsoNormal">On Fri, Jun 17, 2011 at 2:07 PM,
                  Bishop, Bill <<a moz-do-not-send="true"
                    href="mailto:wbishop@pathfinder-ea.com"
                    target="_blank">wbishop@pathfinder-ea.com</a>>
                  wrote:<o:p></o:p></p>
                <div>
                  <div>
                    <p class="MsoNormal" style=""><span
                        style="font-size: 11pt; color: rgb(31, 73,
                        125);">Another piece of the puzzle. >From the
                        90.1 User’s Manual, section on Baseline Building
                        Opaque Assemblies (p.G14 in 2004 ed.):</span><o:p></o:p></p>
                    <p class="MsoNormal" style=""><span
                        style="font-size: 11pt; color: rgb(31, 73,
                        125);">“The baseline building is assumed to be
                        steel framed no matter what the construction of
                        the proposed building. If the proposed building
                        has thermal mass in the exterior construction
                        and this is a benefit in a particular climate,
                        then the mass is credited in the building
                        performance rating method.”</span><o:p></o:p></p>
                    <p class="MsoNormal" style=""><span
                        style="font-size: 11pt; color: rgb(31, 73,
                        125);"> </span><o:p></o:p></p>
                    <p class="MsoNormal" style=""><span
                        style="font-size: 11pt; color: rgb(31, 73,
                        125);">So delayed construction is the de facto
                        method for modeling the proposed envelope, and
                        by extension, the baseline.</span><o:p></o:p></p>
                    <p class="MsoNormal" style=""><span
                        style="font-size: 11pt; color: rgb(31, 73,
                        125);"> </span><o:p></o:p></p>
                    <p class="MsoNormal" style=""><span
                        style="font-size: 11pt; color: rgb(31, 73,
                        125);">Bill</span><o:p></o:p></p>
                    <p class="MsoNormal" style=""><span
                        style="font-size: 11pt; color: rgb(31, 73,
                        125);"> </span><o:p></o:p></p>
                    <p class="MsoNormal" style=""><span
                        style="font-size: 11pt; color: rgb(31, 73,
                        125);"><img id="_x0000_i1025"
                          src="cid:part1.07000408.05050501@bellnet.ca"
                          alt="Signature in jpg form" border="0"
                          height="123" width="496"></span><o:p></o:p></p>
                    <p class="MsoNormal" style=""><span
                        style="font-size: 11pt; color: rgb(31, 73,
                        125);"> </span><o:p></o:p></p>
                    <div style="border-right: medium none; border-width:
                      1pt medium medium; border-style: solid none none;
                      border-color: rgb(181, 196, 223)
                      -moz-use-text-color -moz-use-text-color; padding:
                      3pt 0in 0in;">
                      <p class="MsoNormal" style=""><b><span
                            style="font-size: 10pt;">From:</span></b><span
                          style="font-size: 10pt;"> <a
                            moz-do-not-send="true"
                            href="mailto:equest-users-bounces@lists.onebuilding.org"
                            target="_blank">equest-users-bounces@lists.onebuilding.org</a>
                          [mailto:<a moz-do-not-send="true"
                            href="mailto:equest-users-bounces@lists.onebuilding.org"
                            target="_blank">equest-users-bounces@lists.onebuilding.org</a>]
                          <b>On Behalf Of </b>Carol Gardner<br>
                          <b>Sent:</b> Friday, June 17, 2011 4:40 PM<br>
                          <b>To:</b> Daniel Knapp<br>
                          <b>Cc:</b> <a moz-do-not-send="true"
                            href="mailto:equest-users@lists.onebuilding.org"
                            target="_blank">equest-users@lists.onebuilding.org</a></span><o:p></o:p></p>
                      <div>
                        <div>
                          <p class="MsoNormal"><br>
                            <b>Subject:</b> Re: [Equest-users] LEED
                            Review Comment on U-Value Input Method<o:p></o:p></p>
                        </div>
                      </div>
                    </div>
                    <div>
                      <div>
                        <p class="MsoNormal" style=""> <o:p></o:p></p>
                        <p class="MsoNormal" style="margin-bottom:
                          12pt;">But the Simulation General Requirements
                          are for the simulation model itself and it's
                          capabilities, they do not address the
                          simulation inputs.<br>
                          <br>
                          I think this section of the code is what
                          governs this issue:<br>
                          <br>
                          Opaque Assemblies. Opaque assemblies used for
                          new buildings or additions shall conform with
                          the following common, lightweight assembly
                          types and shall match the appropriate assembly
                          maximum U-factors in Tables 5.5-1 through
                          5.5-8:<br>
                          <br>
                          But I disagree with Guarav's interpretation
                          for these reasons. The use of the word
                          assemblies might "suggest" the need to model
                          the whole structure but the use of
                          "lightweight" in the sentence, and it's
                          location after the word <u>shall</u>, is the
                          key. Those U-values in Tables 5.5-1 through
                          5.5-8 are for lightweight construction.
                          Lightweight construction is not delayed
                          construction. The Standard 90 committee even
                          gave us a variety of wall types to select from
                          on those tables so that we would have an <i>appropriate
                            assembly maximum U-factor</i> to use.<br>
                          <br>
                          Anyway, that's my interpretation.<br>
                          <br>
                          Carol<o:p></o:p></p>
                        <div>
                          <p class="MsoNormal" style="">On Fri, Jun 17,
                            2011 at 9:24 AM, Daniel Knapp <<a
                              moz-do-not-send="true"
                              href="mailto:danielk@arborus.ca"
                              target="_blank">danielk@arborus.ca</a>>
                            wrote:<o:p></o:p></p>
                          <p class="MsoNormal" style=""><br>
                            FYI, Simulation General Requirements as laid
                            out in 11.2 of the 90.1 User's Manual
                            specifically call for the treatment of
                            Thermal Mass Effects in the Minimum Modeling
                            Capabilities.  (see 11.1.2.3 and as already
                            mentioned G2.2.1.c) and notes that "A
                            building's ability to absorb and hold heat
                            varies with its *type of construction* and
                            with its system and ventilation
                            characteristics.  This affects the timing
                            and magnitude of loads handled by the HVAC
                            system.  Simulation programs must be able to
                            model these effects".<o:p></o:p></p>
                          <div>
                            <div>
                              <p class="MsoNormal" style="margin-bottom:
                                12pt;"><br>
                                <br>
                                On 2011-06-16, at 7:15 PM, Mehta, Gaurav
                                wrote:<br>
                                <br>
                                > Michael,<br>
                                ><br>
                                > Agreed, appendix G does not
                                specifically states that one needs to
                                model delayed construction. However,
                                going by the semantics used in Appendix
                                G, one can conclude that delayed
                                construction should be used. Consider
                                the following:<br>
                                ><br>
                                > Table G3.1-5 Building Envelope,
                                under Baseline Building Performance,
                                part (b) Opaque Assemblies: states that
                                Opaque assemblies......shall confirm
                                with the following common, lightweight
                                assembly types and shall match the
                                appropriate assembly U-factors.....<br>
                                ><br>
                                > **The use of the term 'assemblies'
                                suggests the need to model the whole
                                assembly rather than only the U-factor**<br>
                                ><br>
                                > To answer your other question, how
                                do you know what comprises of the
                                baseline opaque assembly, I'll suggest
                                use Appendix A. For example, for steel
                                framed walls, see section A3.3.1
                                General, you'll find the assembly layers
                                that you can use to model the baseline
                                above grade walls. Similarly, you can
                                use respective sections for roof, floor,
                                etc. to determine the baseline assembly
                                layers.<br>
                                ><br>
                                > If I remember correctly, somebody
                                in the past has been kind enough to post
                                the baseline assemblies that can be
                                copied to the inp file (or imported into
                                the inp file). Search the archives.<br>
                                ><br>
                                > Furthermore, eQUEST has an
                                extensive library of materials that one
                                can use, which includes the thickens,
                                specific heat and density of the
                                material. You can create your own
                                materials by using the ASHRAE Handbook
                                of fundamentals, chapter 26 (2009).<br>
                                ><br>
                                ><br>
                                > Thanks.<br>
                                ><br>
                                > Best regards,<br>
                                ><br>
                                > Gaurav<br>
                                ><br>
                                > Gaurav Mehta, LEED® AP BD+C<br>
                                > Sustainable Building Analyst<br>
                                > Stantec<br>
                                > 1932 First Avenue Suite 307<br>
                                > Seattle WA 98101<br>
                                > Ph: <a moz-do-not-send="true"
                                  href="tel:%28206%29%20770-7779"
                                  target="_blank">(206) 770-7779</a><br>
                                > Fx:  <a moz-do-not-send="true"
                                  href="tel:%28206%29%20770-5941"
                                  target="_blank">(206) 770-5941</a><br>
                                > <a moz-do-not-send="true"
                                  href="mailto:Gaurav.Mehta@stantec.com"
                                  target="_blank">Gaurav.Mehta@stantec.com</a><br>
                                > <a moz-do-not-send="true"
                                  href="http://www.stantec.com/"
                                  target="_blank">www.stantec.com</a><br>
                                ><br>
                                > The content of this email is the
                                confidential property of Stantec and
                                should not be copied, modified,
                                retransmitted, or used for any purpose
                                except with Stantec's written
                                authorization. If you are not the
                                intended recipient, please delete all
                                copies and notify us immediately.<br>
                                ><br>
                                > Please consider the environment
                                before printing this email.<br>
                                > -----Original Message-----<br>
                                > From: <a moz-do-not-send="true"
                                  href="mailto:equest-users-bounces@lists.onebuilding.org"
                                  target="_blank">equest-users-bounces@lists.onebuilding.org</a>
                                [mailto:<a moz-do-not-send="true"
                                  href="mailto:equest-users-bounces@lists.onebuilding.org"
                                  target="_blank">equest-users-bounces@lists.onebuilding.org</a>]
                                On Behalf Of James Hansen<br>
                                > Sent: Thursday, June 16, 2011 3:09
                                PM<br>
                                > To: Bishop, Bill; Michael Mantai; <a
                                  moz-do-not-send="true"
                                  href="mailto:equest-users@lists.onebuilding.org"
                                  target="_blank">equest-users@lists.onebuilding.org</a><br>
                                > Subject: Re: [Equest-users] LEED
                                Review Comment on U-Value Input Method<br>
                                ><br>
                                > Michael, I'd advise that you email
                                the project coordinator (or whatever
                                GBCI calls the "head" of a project
                                review team).  Usually they will answer
                                relatively quick and easy questions so
                                that you don't have to risk improperly
                                addressing a comment.<br>
                                ><br>
                                > Ask them where in Appendix G it
                                specifically requires the time delayed
                                method be used.<br>
                                ><br>
                                > GHT Limited<br>
                                > James Hansen, PE, LEED AP<br>
                                > Senior Associate<br>
                                > 1010 N. Glebe Rd, Suite 200<br>
                                > Arlington, VA  22201-4749<br>
                                > <a moz-do-not-send="true"
                                  href="tel:703-338-5754"
                                  target="_blank">703-338-5754</a>
                                (Cell)<br>
                                > <a moz-do-not-send="true"
                                  href="tel:703-243-1200"
                                  target="_blank">703-243-1200</a>
                                (Office)<br>
                                > <a moz-do-not-send="true"
                                  href="tel:703-276-1376"
                                  target="_blank">703-276-1376</a> (Fax)<br>
                                > <a moz-do-not-send="true"
                                  href="http://www.ghtltd.com/"
                                  target="_blank">www.ghtltd.com</a><br>
                                ><br>
                                ><br>
                                > -----Original Message-----<br>
                                > From: <a moz-do-not-send="true"
                                  href="mailto:equest-users-bounces@lists.onebuilding.org"
                                  target="_blank">equest-users-bounces@lists.onebuilding.org</a>
                                [mailto:<a moz-do-not-send="true"
                                  href="mailto:equest-users-bounces@lists.onebuilding.org"
                                  target="_blank">equest-users-bounces@lists.onebuilding.org</a>]
                                On Behalf Of Bishop, Bill<br>
                                > Sent: Thursday, June 16, 2011 4:22
                                PM<br>
                                > To: Michael Mantai; <a
                                  moz-do-not-send="true"
                                  href="mailto:equest-users@lists.onebuilding.org"
                                  target="_blank">equest-users@lists.onebuilding.org</a><br>
                                > Subject: Re: [Equest-users] LEED
                                Review Comment on U-Value Input Method<br>
                                ><br>
                                > Michael,<br>
                                ><br>
                                > My understanding has always been
                                that delayed construction should be<br>
                                > used, though I can't find exact
                                wording in Appendix G that requires it<br>
                                > other than G2.2.1(c). For other
                                components/layers of steel-framed walls,<br>
                                > look to A3.3.1, and to Table A3.3
                                for assembly U-Factors for different<br>
                                > stud spacing. You should be pretty
                                close to the required U-Factor if you<br>
                                > use the correct materials and
                                thicknesses from A3.3. Yes, you may need<br>
                                > to tweak a layer or two to get the
                                construction to match the U-Factor<br>
                                > exactly. As described in other
                                posts, once you create these<br>
                                > constructions for the baseline,
                                copy them for future models.<br>
                                ><br>
                                > Regards,<br>
                                > Bill<br>
                                ><br>
                                > -----Original Message-----<br>
                                > From: <a moz-do-not-send="true"
                                  href="mailto:equest-users-bounces@lists.onebuilding.org"
                                  target="_blank">equest-users-bounces@lists.onebuilding.org</a><br>
                                > [mailto:<a moz-do-not-send="true"
                                  href="mailto:equest-users-bounces@lists.onebuilding.org"
                                  target="_blank">equest-users-bounces@lists.onebuilding.org</a>]
                                On Behalf Of Michael<br>
                                > Mantai<br>
                                > Sent: Thursday, June 16, 2011 4:00
                                PM<br>
                                > To: <a moz-do-not-send="true"
                                  href="mailto:equest-users@lists.onebuilding.org"
                                  target="_blank">equest-users@lists.onebuilding.org</a><br>
                                > Subject: [Equest-users] LEED Review
                                Comment on U-Value Input Method<br>
                                ><br>
                                > We received the following comment
                                on recent LEED review:<br>
                                ><br>
                                > "The simulation input screenshots,
                                provided in the EAc1 modeling<br>
                                > narrative<br>
                                > report, indicate that the exterior
                                wall and roof constructions were<br>
                                > modeled<br>
                                > as QUICK surface type (U Value
                                Input specification method), which does<br>
                                > not<br>
                                > account for the time delayed heat
                                flow through the constructions as<br>
                                > required<br>
                                > by Section G2.2.1(c). Revise the
                                Proposed and Baseline models so the<br>
                                > exterior walls and roof surface
                                types are modeled as DELAYED (Layer<br>
                                > Input<br>
                                > specification method) with the
                                thermal mass effects of the
                                constructions<br>
                                > taken into consideration. In
                                addition, provide a revised LV I report
                                for<br>
                                > each model reflecting the changes."<br>
                                ><br>
                                > Section G2.2.1(c) describes
                                modeling software requirements, but I
                                don't<br>
                                > see<br>
                                > anywhere else in Appendix G that
                                specifies that thermal mass effects<br>
                                > have to<br>
                                > be included in the baseline model.<br>
                                ><br>
                                > Previous review comments on other
                                projects have led me to believe that<br>
                                > U-value input was the correct
                                method to set up the baseline model.<br>
                                ><br>
                                > If I revise the model to input each
                                layer, what layers do I input?<br>
                                > 90.1-2007 Appendix G states to use
                                steel-framed walls, and the Tables<br>
                                > provide minimum R-value for
                                insulation and overall assembly U-value.<br>
                                > But it<br>
                                > does not appear to provide such
                                other items as stud spacing, sheathing,<br>
                                > or<br>
                                > even what material is on the
                                outside of the building (for exterior<br>
                                > walls).<br>
                                > Has anyone else had this type of
                                comment before or are you using the<br>
                                > layer<br>
                                > input method for baseline models?
                                 It seems that if I need to specify<br>
                                > layers, the resultant U-value
                                should equal exactly the minimum U-value<br>
                                > per<br>
                                > the 90.1 tables.  That would lead
                                me to believe that there might be<br>
                                > different combinations of layers
                                that result in the same U-values but<br>
                                > result<br>
                                > in different energy use in the
                                baseline, and obviously I would want to<br>
                                > have<br>
                                > the highest energy use for LEED
                                purposes.<br>
                                ><br>
                                ><br>
                                >
                                _______________________________________________<br>
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                                >
                                _______________________________________________<br>
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                                >
                                _______________________________________________<br>
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                                ><o:p></o:p></p>
                            </div>
                          </div>
                          <p class="MsoNormal" style="">—<br>
                            Daniel Knapp, PhD, LEED® AP O+M<br>
                            <a moz-do-not-send="true"
                              href="mailto:danielk@arborus.ca"
                              target="_blank">danielk@arborus.ca</a><br>
                            <br>
                            Arborus Consulting<br>
                            Energy Strategies for the Built Environment<br>
                            <a moz-do-not-send="true"
                              href="http://www.arborus.ca/"
                              target="_blank">www.arborus.ca</a><br>
                            76 Chamberlain Avenue<br>
                            Ottawa, ON, K1S 1V9<br>
                            Phone: <a moz-do-not-send="true"
                              href="tel:%28613%29%20234-7178%20ext.%20113"
                              target="_blank">(613) 234-7178 ext. 113</a><br>
                            Fax: <a moz-do-not-send="true"
                              href="tel:%28613%29%20234-0740"
                              target="_blank">(613) 234-0740</a><o:p></o:p></p>
                          <div>
                            <div>
                              <p class="MsoNormal" style=""><br>
                                <br>
                                <br>
_______________________________________________<br>
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                            </div>
                          </div>
                        </div>
                        <p class="MsoNormal" style=""><br>
                          <br clear="all">
                          <br>
                          -- <br>
                          Carol Gardner PE<o:p></o:p></p>
                      </div>
                    </div>
                  </div>
                </div>
              </div>
              <p class="MsoNormal"><br>
                <br clear="all">
                <o:p></o:p></p>
            </div>
          </div>
          <p class="MsoNormal"><span style="color: rgb(136, 136, 136);">--
              <br>
              Carol Gardner PE<o:p></o:p></span></p>
          <p class="MsoNormal" style="margin-bottom: 12pt;"><br>
            _______________________________________________<br>
            Equest-users mailing list<br>
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        </div>
        <p class="MsoNormal"><o:p> </o:p></p>
      </div>
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