The thermal behavior of a concrete ‘finned’ wall in a hot-arid zone Academic Article uri icon


  • Abstract The thermal behavior of an exposed concrete slab with a grid of truncated pyramids on its outer surface was found to differ considerably from that of a similar slab with a smooth outer surface, under hot-arid conditions. When the slab was placed vertically facing south (simulating a south-facing wall), the three-dimensional geometry of its exterior reduced radiative heat gain. Placed horizontally, radiative heat gain increased. Painting the slabs white reduced the relative contribution of radiative heat gain, while the increased surface are resulted in the creation of a thick ‘boundary’ layer that affected the thermal behavior of the slab under certain conditions.

publication date

  • January 1, 1991