Basement means any area of the building having its floor subgrade (below ground level) on all sides.
Nominal tomographic section thickness means the full width at half-maximum of the sensitivity profile taken at the center of the cross-sectional volume over which x-ray transmission data are collected.
Weathertight means that in any sea conditions water will not penetrate into the vessel.
Total Floor Area means, the sum total of the total areas of all floors in a building or structure whether at above or below grade measured between the exterior faces of the exterior walls of the building or structure or from the centre line of a common wall separating two uses or from the outside edge of a floor where the outside edge of the floor does not meet an exterior or common wall, and;
Expanded polystyrene means blown polystyrene and expanded