Building (B) is the 1st object in the B.A.S.E. Acronym.
Please note each of the 4 main object types have their
own special considerations and optimal wind conditions.
Building Objects can range from any solid man-made
structure to a place where people live and/or work.
BASE is very individualistic and as such jumpers have
different opinions as to what qualifies. For example:
while most jumpers feel jumping from a sky scraper
under construction as counting, some purists feel a
building must be finished and occupied to qualify.
Many times the exit point will be dictated by access
but if possible/reasonable the best place to exit a B
is at the highest corner, with the best winds, and
the safest landing area.
Please note: most
buildings require minimal to zero
winds to maximize safety margin. Reason why is
that the surrounding structures will cause turbulence
plus the various building materials in a city area will
heat and cool at different rates which can cause one
or more of the following: updrafts, downdrafts, and
rotors.