For technically demanding applications like perimeter or flat roofs, insulation materials have to handle high pressure loads comfortably and be resistant to moisture, water and salty or acidic soils.
In situations like these, extruded polystyrene rigid foam is the best choice. It handles easily all weather conditions and is known to be extremely durable.
Using URSA XPS also helps to protect the environment in two ways. On one hand, it is made using naturally occurring gases and on the other hand, installing URSA XPS helps guarantee a low demand for heating in buildings, helping us towards a more sustainable future.