![](http://www.tumblr.com/share/photo?source=https%3A%2F%2Fwww.schumerarchitects.com%2Fkoken%2Fstorage%2Fcache%2Fimages%2F001%2F490%2Fppd-foundation-ph-02%2Clarge.1511916331.jpg&caption=%3Cp%3E%3Cstrong%3E%3Ca href="https%3A%2F%2Fwww.schumerarchitects.com%2Fkoken%2Fcontent%2Fppd-foundation-ph-02%2F" title="ppd-foundation-ph-02.jpg"%3Eppd-foundation-ph-02.jpg%3C/a%3E%3C/strong%3E%3C/p%3E%3Cp%3EThe+PPD+Foundation+understands+historic+fabric+as+a+material+and+cultural+resource+that+is%0Anot+erased+by+new+architecture%2C+but+overwritten+and+spatially+continued.%0AHere%2C+circularity+refers+not+only+to+material+and+energy+cycles%2C+but+also+to+the+continued%0Ause+of+spatial+and+cultural+substance.+The+new+architecture+does+not+suspend+history%3B+it%0Amakes+it+the+starting+point+for+a+further+spatial+layer.+Geothermal+energy+and+thermally%0Aactivated+building+systems+complement+this+strategy+with+a+long-term+energy+cycle.%3C/p%3E&click_thru=https%3A%2F%2Fwww.schumerarchitects.com%2Fkoken%2Fcontent%2Fppd-foundation-ph-02%2F){kind=link}
stefan a. schumer architects
ppd-foundation-ph-02.jpg
The PPD Foundation understands historic fabric as a material and cultural resource that is not erased by new architecture, but overwritten and spatially continued. Here, circularity refers not only to material and energy cycles, but also to the continued use of spatial and cultural substance. The new architecture does not suspend history; it makes it the starting point for a further spatial layer. Geothermal energy and thermally activated building systems complement this strategy with a long-term energy cycle.