Hi Justin,
Insulating the floor will not provide a significant benefit in cooling the yurt, but it helps significantly with
. However, installing some open-able vents in the floor can help. This will allow you to pull cool air from below the platform into the yurt by opening the
and it is very inexpensive.
As you mentioned, a ceiling fan can help with exhausting hot air through the open
. Air conditioning can also be added to the yurt. Many customers are using mini ductless systems, which don't require a large hole to be cut into the wall.
A
shade sail could be suspended above the yurt to provide shade until the trees are tall enough and can add a unique aesthetic.
Window Awning frames can provide shade over your opened window and are adjustable for length and angle.
A "curtain" can be suspended horizontally inside the yurt below the dome to block the hot direct sun and pulled aside when you want to enjoy the view of the sky above.
Shade screen can be installed onto the
to reduce heat gain through the dome and could be removed seasonally.
Hope this helps!