Drainage of water from a pergola can be done in several ways. Firstly, pergolas can be designed with suitable materials that effectively retain raindrops, ensuring that water does not penetrate the roof. For example, garden pergolas made of aluminum are known for their resistance to weather conditions.
As for drainage systems, slatted pergolas can be equipped with special gutters that direct water in a specific direction. Even a slight roof slope is enough for rainwater to flow freely. However, the roof slope itself and the appropriate profiles can also effectively direct water to the ground, where it can be absorbed by the lawn. A gutter is an additional convenience, although it is not essential for the proper operation of the pergola.