Net-zero-energy buildings are key in a path to a greener future.
Designed by ZED Lab, the recently completed House Under Shadows is a prominent near net-zero residential structure that achieves reduced solar direct and diffused radiation by 65% through digital modelling using parametrics and passive design strategies – an architectural response to the extreme weather in North India.
The 1672-square-meter integrated double-family residence redefines the “Indian-Modern” style, taking cues from the vernacular and nature’s self-forming elements and patterns like Voronoi to minimise energy consumption throughout.
The design highlight is the parametrically crafted omnipresent double-roof that canopies the vast footprint of the horizontally-spread double unit structure. The Voronoi-patterned double roof is a combination of GRC (Glassfibre Reinforced Concrete) and FRP (Fibre Reinforced Polymer) with a high Solar Reflectivity Index (SRI) that results in an ephemeral play of light and shade with surprising shadows dynamic with diurnal and seasonal changes.
In proximity with Noor Mahal, the residence is a reinterpretation of the architectural language of the traditional Indian “havelis” and “chhatris” with courtyard enabling social cohesion, and transition spaces enabling movement, natural ventilation and daylight. Also, the unique landscaping strategy incorporates vertical greens to avoid heat island effect and facilitate evapotranspiration to maintain the microclimate of the residence.
