Reinforced concrete slabs are supported by beams. This includes cast-in-place slabs with beams on all sides, waffle slabs with beams, slab band system (common in Canada), one-way joist system (common in North America), and clay tile coffered reinforced concrete slabs. They are sometimes overlaid with light-weight roofing.

RC2 Canada Brzev 1

Reinforced concrete slab supported by beams, Canada (S. Brzev)

RC2 Canada Brzev 2

Reinforced concrete slab band system, Canada (S. Brzev)

RC2_Canada_Brzev_3

Reinforced concrete slab supported by beams, Canada (S. Brzev)

RC2_USA_Brzev_1

Reinforced concrete waffle slab system with beams, USA (S. Brzev)