Hi Kevenh,

Properly
manufactured bamboo and eucalyptus floors (like ours!) are similar to
mid-range hardwoods when it comes to dimensional stability, so they can
be installed in all climates whether very dry or very humid. Our floors
have been installed around the world from the jungles of Kenya to the
heights of the Rockies.

All wood flooring expands and contracts
with the seasons due to changes in humidity - there are no exceptions.
The key is to control your interior humidity as to avoid excessive
swings in humidity throughout the year, as these will cause expansion
and contraction in your wood/bamboo. The recommended humidity setting
for our floors is 40%-60% in humid climates and 35%-55% in dry climates
but even dryer and more humid settings may suffice as long as your
humidity is stable (within a 20% range) throughout the year. We do
recommend to try to keep the humidity above 20% in most cases. In very
humid or very dry climates, just follow these tips and you will be all
set:

a. Acclimate your flooring for at least 10-14 days prior to
installation (instead of the normal 72 hours) in the environment in
which they are going to be lived on. Ensure all boxes are opened
properly so that the planks can breathe.

b. Glue the flooring down. The elasticity in the glue allows the floors to breathe easily through humidity changes.

c. Make sure to leave ¼ - ½ inch of expansion gap around your flooring perimeter at the time of installation.

d.
Try to keep your interior humidity setting consistently in the same 20%
range year round (opening windows for a day won't hurt the floors),
even via the use of humidifiers/dehumidifiers if necessary. If you
allow big humidity swings, larger gaps may develop between your planks
during dry spells and they'll close during wet spells.