ESKADE-SYSTEM barrel vault skylight assembly instruction

The base should be insulated with polystyrene foam or stone wool. Any resulting apertures should be filled with polyurethane foam. Skylight bases should not be insulated with slag wool because with time this material has a tendency of sliding down, which may result in the creation of thermal bridges. In such case, the dampness may distill and cause leaks. The use of hard polystyrene foam, on the other hand, firms up the skylight base.