addressalign-toparrow-leftarrow-rightbackbellblockcalendarcameraccwcheckchevron-downchevron-leftchevron-rightchevron-small-downchevron-small-leftchevron-small-rightchevron-small-upchevron-upcircle-with-checkcircle-with-crosscircle-with-pluscrossdots-three-verticaleditemptyheartexporteye-with-lineeyefacebookfolderfullheartglobegmailgooglegroupshelp-with-circleimageimagesinstagramFill 1linklocation-pinm-swarmSearchmailmessagesminusmoremuplabelShape 3 + Rectangle 1ShapeoutlookpersonJoin Group on CardStartprice-ribbonShapeShapeShapeShapeImported LayersImported LayersImported Layersshieldstartickettrashtriangle-downtriangle-uptwitteruserwarningyahoo

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

  • Richard M.

    I liked the idea of inviting Harold Hefel of AMNOVA (www.amnova.us) 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

  • Martin G.

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

    June 10, 2014

37 went

Our Sponsors

Sign up

Meetup members, Log in

By clicking "Sign up" or "Sign up using Facebook", you confirm that you accept our Terms of Service & Privacy Policy