Martin Brown wrote:

the photo which appeared in the Observer p27 and on the
cover of the London Evening Standard tends to suggest that the vertical
fins on the side of the building played some part in fire propagation.

Some of the planning docs showed a solid triangle of insulation around
the support columns (which is what the fins are covering) the columns
are rotated 45° from normal.

# concrete
@ insulation
- cladding

#####
###########################
@@@@@@@@@@#######@@@@@@@@@@
---------+@#####@+---------
\@@@@@/
\@@@/
\@/
V

But the aftermath photos seem to show a triangular void between concrete
columns and insulation.


#####
###########################
@@@@@@@@@@#######@@@@@@@@@@
---------+@#####@+---------
\@ @/
\@ @/
\@/
V