Nadav Malin, Hon. AIA!!!!

Late to the station, but congratulations. Cheers! Leonard Sciarra, AIA, ASHRAE, LEEDap+ Senior Associate +1 312.577.6580 Direct +1 312.456.0123 Main +1 847.345.5619 Mobile Gensler 11 East Madison Street Suite 300 Chicago, Illinois 60602 USA

In response to 'Re: [Green Gurus] Nadav Malin, Hon. AIA!!!!' Do not reply to this message; send comments directly to 'jerelyn@buildinggreen.com' I will be out of the office 1/23 - 1/29 at the Architecture & Design Sustainable Design Leaders WINTER SUMMIT in Austin, TX. Back in the office on Tuesday, January 30. For questions or issues concerning ONLINE ACCESS to the BuildingGreen (+Designer Pages) or LEEDuser websites, please contact Charlotte Snyder (802-257-7300 x 101/Charlotte@BuildingGreen.com). DIALOG employees interested in downloading STUDY GUIDES can be confident that I will respond to your request this week within 48 hours.

Wishing I was with all you leaders in Austin this week. Have fun and cause some disruptions. We are stronger together. Drink a shiner bock for me! -Meredith Sent from my iPhone

SO well-deserved!! Congrats Nadav!!!! Thank you for all that you do and inspire!! (and nice work Mary Ann, Rus and copied co-conspirators for expanding recognition of the Malin magic) J (Also, sorry for being late to this party. 2x the celebratory drinks next time I see you Nadav!) *jennifer cutbill* Architect, *Local Practice | *Board, *RAIC* * | *Chair, *Vancouver Design Foundation* c.604.368.1980

Me too! How did I miss this!! Congrats and well deserved! Thank you for all you do Nadav! Pauline Souza, AIA, LEED Fellow Partner, Director of Sustainability WRNS STUDIO San Francisco | Honolulu | New York 415.489.2224 P | 415-489-2235 D| 415.203.3260 C | 501 2ND ST. #402 | San Francisco, CA 94107 www.wrnsstudio.com P Please consider the environment before printing this email Read About Sacred Heart Library, First Net Zero Certified School in California https://living-future.org/lbc/case-studies/sacred-heart-lower-middle-school-stevens-library/

Hi Guys, I am working on the fenestration performance values for the next code cycle (2019) and am trying to get a feel for what we are specifying across the climate zones currently (basically what are projects installing today to formulate some type of a context for the new values). If you guys could quick just look at the projects around you, on the computers, and send me: the Climate Zone, the System U-factor (or CoG U of glass), and the System SHGC (or glass SC), that would be super helpful. Thanks Leonard Sciarra, AIA, ASHRAE, LEEDap+ Senior Associate +1 312.577.6580 Direct +1 312.456.0123 Main +1 847.345.5619 Mobile Gensler 11 East Madison Street Suite 300 Chicago, Illinois 60602 USA .

Leonard, We are just bidding a project in ASHRAE Climate Zone 4 with 63% glazing and most of the rest spandrel. We worked with our team to find the right number, and ended up specifying that the curtain wall and spandrel (typical insulated backpan) will – combined – be U=.295 or better. SHGC will be .33 for most of the building, with a clearer .50 to .60 at the lobby. There are a few developments in the Washington State Energy Code and Seattle code that relate to envelope performance that it would be interesting to compare to what you are seeing as well. 1. Fenestration prescriptive requirements Table C402.4, image below. Regarding Columns A and B, there is a ‘fuel-based’ provision (Seattle only, required as of Jan 1 2018). Improved U values for the fenestration are required if one is using combustion or electric resistance for heating. The reasoning is that the use of gas combustion for heating can’t be made any more efficient at a building scale while heat pumps are comparatively more efficient. This required Seattle City Council approval because it biases one utility over another. [cid:image003.jpg@01D3B068.8FC5D230] 2. C402.5.1.2 Envelope performance testing (pressurization). A building pressurization test is required per ASTM E779, though it is not required to be passed (yet). The target is currently .40cfm/sf (.30 cfm/sf Seattle) though it is being lowered in the 2018 code. 3. Spandrel default value tables. We copied these from California. In many cases architects were suggesting (via their energy code calculations) that spandrel areas performed similarly to opaque walls with continuous insulation, but the reality is that they are not even close. Thus, we used default values and require proof if design teams are using better numbers than the defaults. 4. There is another provision for energy modeled projects that requires an additional 1% modeled improvement for every 3% glazing beyond 45%. Thus a 60% glazed building requires an additional 5% modeled improvement over a baseline. Seattle http://www.seattle.gov/DPD/codesrules/codes/energy/overview/ Washington http://www.energy.wsu.edu/BuildingEfficiency/EnergyCode.aspx http://www.energy.wsu.edu/Documents/ga_2015WSEC_C_final.pdf Kjell ................................................................. Kjell Anderson AIA, LEED AP Associate Director of Sustainable Design LMN 801 Second Avenue, Suite 501 Seattle, WA 98104 T 206 682 3460 lmnarchitects.com<%20lmnarchitects.com%20> From: Len