The roof of the forest made by the branches of tall trees is called [[1]].

The canopy is the uppermost layer of the forest formed by the branches and leaves of tall trees. It is often described as a "roof" over the forest, providing shade and shelter for the underlying layers of vegetation and the animals that live there.

The canopy layer is typically composed of the tops of the tallest trees in the forest, often reaching heights of up to 100 feet or more. These trees are able to grow tall and broad because they compete for sunlight and nutrients with other trees, often resulting in a tall and slender structure with few lower branches.

The canopy layer plays an important role in regulating the microclimate of the forest, as it intercepts much of the incoming solar radiation and helps to moderate temperature and humidity levels. It also provides a habitat for a diverse range of species, including birds, insects, and small mammals, many of which are adapted to living high above the forest floor.