The roofing system had to be persistent and must guarantee the highest performance for at least 20 years. Furthermore, it's a prerequisite to facilitate the installation of a photovoltaic system for self-consumption. The designers needed a reliable complete system and a trusted roofing partner which can provide a durable proven solution.
The Sika solution convinced the customer with its high-performance thermoplastic roofing system, which fulfills the requirements both from a technical, economic and environmental point of view. In order to show the benefits of the specified Sika roofing system for the store in Girona, Sika implemented a full-system approach by taking into account both the environmental impacts of the system and the heating/ cooling savings for this specific project and location for an estimated service lifespan of 20 years.
The specified Sika roofing system with a beige colored waterproofing membrane has been approved by the central headquarters of the food discounter in Germany. In warm climates like Spain, it is confirmed, that white, highly reflective roofing membranes are able to reduce heat absorption and reduce both the cooling energy consumption of buildings and the energy costs.
For the 1,800 m² total surface area of the project, the results for a beige Sarnafil TS 77-18 and a white Sarnafil TS 77-18 SR based roofing system demonstrate that both thermoplastic membranes bring significant savings from avoided cooling compared to a system with a black roofing membrane. The savings surpass the cradle to grave Energy and Carbon impacts ("Footprint") of the whole roofing system is less than five years.
Sarnafil TS 77-18 beige for roof waterproofing membrane
Sarnavap 1000 E for vapor control
Sarnafast SF 4.8 x 80 and Washer Sarnafast KT 82 x 40 for fastening
German discount supermarket chain