Gallery: Chalkboard-Skinned Belgian Passivhaus is a Playground for Neig...


The most eye-catching aspect of the modern home is its front yard — a basketball court, activity area, and chalkboard facade provide a playground for a neighborhood full of kids. The idea came as a way to mix public and private space, resulting in a much more family friendly neighborhood.

The house is dug into a northern embankment, which makes for a nice sled run in the winter and helps the home remain energy-efficient. The passive home — currently pending certification — pushes the envelope (building pun) of traditional Passivhaus design, which is the most energy-efficient building system in the world. The project’s passive solar design features high thermal mass and lots of southern glazing, creating a very transparent interior. (Solar gain is a part of Passivhaus design but not a requirement.) The architects incorporated the space-saving Raumplan principle by joining the living spaces into an open, cohesive whole — changes in elevation and other visual cues define the interior without walls.

The exterior walls are just as unique. Hung from a post and beam superstructure, the walls are super insulated and carefully detailed to eliminate thermal bridging. The exterior is wrapped in a black glass fiber cloth above and EPDM rubber below. The rubberized façade is a perfect blank slate for expressions in chalk, and the southern windows have very discrete shades which pull down to shield the interior on hot days.

+ BLAF Architecten

Via Doos Arquitectura

Photos © Stijn Bollaert


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