Complex sentence: Tadelakt is a nearly waterproof lime plaster used on both the interior and exteriors of buildings, and is the traditional coating of the palaces, hammams and bathrooms of the riads in Morocco.
Split into simpler sentences: Tadelakt is a nearly waterproof lime plaster which can be used on the interior and exteriors of buildings. It is the traditional coating of the palaces, hammams and bathrooms of the riads in Morocco.