Kathmandu, Sept. 13 -- T here are many types of traditional roof tiles in Kathmandu: broad tiles, slender tiles, half-cylinders, or the elegant jhingati. Before concrete buildings started sprouting up with flat roofs, the Valley's old towns all had distinctive sloping red-tiled roofs.
Even though houses with traditional roofs are now rare, tiles are being put to all kinds of creative uses, including to reduce the energy cost of cooling or heating homes and offices. One such example is a rooftop pavilion at the headquarters of the International Centre for Integrated Mountain Development (ICIMOD) in Khumaltar (see box).
Terracotta tiles are hard to beat in terms of sustainability and climate responsiveness, compared to concrete slabs or st...