Dear Maurice,<div><br></div><div>For your information below is the CIR related to this, please use the formula to calculate the target percent.</div><div><br></div><div><div><b>9/14/2007 - Credit Interpretation Request</b></div>
<div>The purpose of this CIR is to obtain confirmation of what is considered New Buildings vs. Existing Building Renovations within Option 1 of this credit. The project consists of a 120,000 SF existing building, which is part of and connected to other buildings in a corporate campus. The building was recently used for offices, which is the predominate use of the campus. There is no central mechanical plant for the campus-each building has its own mechanical system. The building is being converted to a large data center. The building's exterior shell will be retained but the existing mechanical and electrical systems, as well as all interior partitions, ceilings and finishes, will be removed. In short, the building is being gutted. We will be submitting this credit under Option 1: Whole Building Energy Simulation. The mechanical engineer is confident that the building will save at least 7% energy costs but not sure it will achieve 14%. Since we are required to achieve 2 points in this credit to achieve certification, we wish to be certain that the project will be considered Existing Building Renovation for the purpose of awarding points for energy savings.</div>
<div><div><b>10/24/2007 - Ruling</b></div><div>Because the existing building shell is preserved, this project can apply for EAc1 using the Existing Building Renovations energy cost savings thresholds. Please note that if there are portions of the project that will be new construction, then use the equation provided in the LEED-NC v2.1 CIR Ruling dated 9/5/2001 (and revised on 9/21/06) to determine the appropriate point-thresholds. The equation follows below: To calculate the optimization point table for a project that has both existing and new construction, use the following formula for each line of the table:</div>
</div><div style="text-align: center;"><b>target percent = (existing SF / total SF) * (existing percent) + (new SF / total SF) * (new percent)</b></div><div><br></div><div>Regards</div><div><br></div>Gurneet Singh<br>Project Manager<br>
Environmental Design Solutions<br>657 Sector A, Pocket C, Vasant Kunj-70<br><br>
<br><br><div class="gmail_quote">On Mon, Jun 14, 2010 at 11:20 PM, Maurice Safatly <span dir="ltr"><<a href="mailto:SafatlyM@mmm.ca">SafatlyM@mmm.ca</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
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<p class="MsoNormal">Hi All,</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">I am working on a project that pretains renevations and
addition for an exisitng building. The existing is about 60% of the total new
designed building, and new constructed addition is about 40%.</p>
<p class="MsoNormal">The existing section will have an upgraded walls and roof.
Windows will remain the same. The new section will comply with local codes.</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">For (LEED NC v1) modeling purposes, can I model the entire
building as one building (existing and new addition)? and Once modeled, Do I compare
energy reduction against New Building or Exisitng in LEED reference?</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">Any assistance is greatly appreciated!</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">Regards,</p>
<p class="MsoNormal">Maurice</p>
<p class="MsoNormal"> </p>
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