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Green Stuy - Technical Open House for 731 Jefferson

  • Jun 15, 2014 · 12:00 PM
  • This location is shown only to members

731 Jefferson Avenue is a high performance, low cost, masonry retrofit. The design approach is to “gut” as little as possible, minimize the waste produced, and to use low VOC, natural non-petrochemical products. The technical open house is a chance to see the mechanicals and air sealing before the walls get closed up. 

Here are some highlights:

• Wall insulation: Redstone PURA, a mineral-based capillary-open board

• Roof and cellar insulation: Roxul mineral wool

• Air sealing: pro clima Intello & DA, pro clima tapes

• Ventilation: Lunos ego and e2 “through wall” ventilation system

• Windows: Rieder unpainted Douglas fir frames treated with larch oil, triple pane

• Skylights: Lamilux FE

• HVAC: Mitsubishi mini splits/ducted

• Hot water heater: GE Geospring heat pump 

Please join homeowners and designers, Bettina Johae and Daniel Herskowitz on Sunday, June 15 from 12 – 3pm. Harald Hefel of Amnova/Hefel Masonry will be present to answer questions about Redstone PURA mineral board.

731 Jefferson Avenue is located between Malcolm X Blvd and Patchen Avenue in the Bedford Stuyvesant neighborhood in Brooklyn. Nearest subway stops are the Utica Ave stop on the A/C train and the Gates Ave stop on the J train.

Contact Daniel [masked] / Bettina [masked],  to be let in.

Join or login to comment.

  • Mikiko K.

    I'd like to know, the brand for crackers in the back yard. Thank you. ~K Thank you for hosting this Tour, very informative & interesting learning, for me.

    June 17, 2014

  • patrick g.

    Nice to see a paint that is designed to be vapour permeable. Something new for me at least in the PH

    June 15, 2014

  • Bill O.

    very detailed and thorough explanation

    June 15, 2014

  • Richard M.

    I liked the idea of inviting Harold Hefel of AMNOVA ( who went into great detail explaining the technical and practical side of the paints and the "redstone" wall boards! Props to the leadership and the teamwork!

    June 15, 2014

  • eric a.

    Great tour, looking forward to the blower door test

    June 15, 2014

  • John Richard (JR) C.

    Hey everyone! I learned about NYPH through David Holzbaur of Consolidated Brick. I won't be able to make this weekend's open house because of the U.S. Open this weekend. Hope to meet up with you next time!

    June 11, 2014

  • Martin G.

    Please note that the open house will actually be open from 12 - 3 pm.

    June 10, 2014

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