Well, I have noticed now that you've pointed it out. Thanks.
I have just done a large warehouse well over 130m wide and just used the maximum figure from the table (old or new) as I would have done before. The increments are so small at such large widths that I don't think there is any need for them.
If you think about a point centrally located and facing a 140m wide wall of burning building, any additional width is going to be at a pretty oblique angle to the point and over 70m away - I don't think that the extra width will make much difference to the heat energy the point receives when compared to the radiated heat coming from the portion of the wall facing it more directly.
So I would advise carrying on using the tables as before, assuming no limit for high widths and as for Appendix A there could be a number of reasons why it has disappeared. It would be nice if someone could offer an explanation. I guess there could be a few reasons.
Maybe it was found to be wrong in some way - but then a better option would have been to correct it and leave it in. That would not have produced the doubt we now have over the validity of the content.
Or maybe it hasn't been found to be wrong but confidence in it has waned so it was thought best to exclude it.
Or maybe it was just considered superfluous.
