Flat skylights can be strong enough to support the weight of a person. The thickness of the glass varies according to the size, with smaller rooflights typically featuring three panes of 10mm toughened glass bonded together, resulting in a finished toughened laminate with a thickness of 32mm.
Walk-on glass can be manufactured as a double-glazed unit, provided that the support frame is adequately designed to accommodate the 32mm thickness.
However, a primary drawback of constant use over time is that the glass may become scratched.
