Rating System

LEED BD+C: New Construction, LEED BD+C: New Construction, LEED BD+C: Schools, LEED BD+C: Schools, LEED BD+C: Core and Shell, LEED BD+C: Core and Shell

Rating System Version

v2 - LEED 2.2, v3 - LEED 2009, v2 - Schools 2007, v3 - LEED 2009, v2 - LEED 2.0, v3 - LEED 2009

Inquiry

ENERGY & ATMOSPHERE: Minimum Energy Performance (EAp20) 4/30/2005 - Credit Interpretation Request The Saranac is a renovation and historic preservation of a 4 story hotel. The building will be converted into a multi-use facility that will include housing, offices, symposium space, theater and restaurant uses. The building is designated as a contributing structure to the Downtown Spokane National Historic district. the building is also on the local Historic Register and is subject to review of the local Landmark Commission. The design restrictions will result in restoring the storefront and primary elevations to 1900 era appearance. In our case the entire building will be renovated but the esterior appearance of the building will remain largely unchange with the exception of the addition of exterior sun shades on the non-primary elevations. The building systems will be replaced. Can the buildings existing envelope chariteristics be used to extablish the energy usage baseline per ASHRAE 90.1 (Section 4.1.2.2)? 5/23/2005 - Ruling Yes. As established in the EAp2 CIR Ruling dated 3-11-03 and ASHRAE 90.1 Sections 4.1.2.2, the historical facade is exempt from minimum energy performance. Section 11.4.2 also states "for existing buildings, the budget building design shall reflect existing conditions prior to any revisions that are part of this permit." _________________________________ Based upon this CIR I have a question about our current project, the renovation of an existing mill building into spec office space. Please note that the mill building is "specifically designated as historically significant by the adopting authority or is listed in \'The National Register of Historic Places\' or has been determined to be eligible for listing by the US Secretary of the Interior" per ASHRAE 4.2.1.3. I would like to confirm the following: 1. This CIR which was filed for a New Construction project applies to a Core and Shell project. Please confirm. 2. We believe this CIR allows us to use the original facade/envelope conditions to set our minimum energy performance as required for EA Prerequisite 2. Please confirm. 3. We believe this CIR allows us to run our energy model using the original facade/envelope design conditions to set the baseline for energy model comparison with the renovated facade/envelope design. Please confirm. 4. When we compare the original envelope against the renovated envelope (which can only consist of new windows and added roof insulation per the Historic Registry guidelines) our energy performance, based upon cost, increases by 23%. -We believe that this means we meet EA Prerequisite 2. Please confirm. -We also believe that under credit EA-1 we would qualify for 6 points as this is an Existing Building Renovation. Please confirm.