AH Bhatti replied on Tuesday, November 15, 2011 06:47 PM
To my knowledge, which ever activity involves cement, sand and bricks comes under grey structure. excavation, brick work, roof slab, plaster, floor, bath tiles, roof tiles etc. till parapet walls are considered under grey structure, however, electric conduiting and plumbing piping are additional activities and are not included in grey strcuture. Roof slab area is measured as sft. |