What are appropriate humidity levels for bamboo flooring post-installation? I've heard that most hardwoods are good between 35-50% humidity but have been unable to locate anything specific to bamboo.
A quick Google search found me this web page:
14 Maintain relative humidity. Using a dehumidifier or humidifier to maintain relative humidity in the home at 30-50% will maintain the moisture level in the wood and help minimize cracks between the boards. Continued excessive humidity can cause swelling of the floor. Continued lack of humidity (below 20%) can cause shrinking of the planks and/or cracking of the bamboo strips.
Let's just say if your in a humid erea then bamboo is then exactly what it is. Here is a link because it can be tricky to understand it.