Hi,
Is this a sub-parameter of the "Surface protection" parameter. If so, should I check all the four boxes for a column inside a wall with insulation and plasterboards on both sides?
If I check all four boxes and set the required resistanse to 4 hours and leave the "surface protection" parameter blanc, the member verification shows a section of 73x98mm with ratio of 0,05 (the section would be totally incinerated by this time).
