IFC (IFC4X3_ADD1) development


Semantic definition

Ratio of the permeability of the ceiling. The ration can be used to indicate an open ceiling (that enables identification of whether ceiling construction should be considered as impeding distribution of sprinkler water, light etc. from installations within the ceiling area).

Referenced in
Table 5ca8c5d2-60ff-4ad1-a972-a2a0b1139383

Edit on Github

Is this page difficult to understand? Let us know!