Does the thatch require any special care?
No. When thatch is new and first exposed to the rain, the palm sometimes leaches a natural runoff that can spot the ground, but washes off. To avoid unnecessary cleanup work, the thatch should be thoroughly hosed down. This may be repeated a couple of times. Very rarely excessive humidity in the environment can cause light mildew spotting of the palm material to occur. This can be left alone with no ill-effect to the palm or can be partially removed by spraying the affected area with 25% bleach/ 75% water mixture, then thoroughly hosing off affected areas. Do this on a sunny day.