The Greenport Passive House is on Schedule Triple pane Bildau Bussman windows arriving from Poland! The triple pane makes these windows so heavy they must be moved by forklift. Bildau Bussman windows waiting to be installed. All the windows made it on to their floor. The Greenport Passive House metal roof is an Atas Standing Seam metal roof expertly installed by Big Dog Roofing Skylights are installed on the raised seam roof. Just like the rest of the windows, the skylights are triple-pane glass Recycled insulation from Green Insulation Group. Insulation and tape going on the side of the structure. No beach house is complete without an outdoor shower, outside the thermal envelope!