The importance of adapting building roofs for the installation of photovoltaic systems lies not only in energy efficiency, but also in compliance with safety regulations, such as the BROOF(t2) classification concerning external fire resistance of roofing materials.
Among the various renewable energy options available in urban environments, photovoltaic systems are one of the most widely adopted thanks to their medium- and long-term benefits.
They enable the continuous production of clean energy, reducing carbon footprint and greenhouse gas emissions, while simultaneously increasing the property’s market value and improving its energy rating. This, in turn, encourages greater attention towards energy-saving strategies and building efficiency measures.
In this context, ensuring that flat and pitched roofs are adequately prepared for photovoltaic installations has become essential, with a particular focus on compliance with fire resistance standards such as BROOF(t2) under EN 13501-5.
A renowned Milan-based company commissioned a project to transform an existing 1,600 m² roof into a surface suitable for the installation of a photovoltaic system, making use of the existing waterproofing layer as a substrate.
After verifying the structural condition of the roof, the chosen solution was the application of COPER SOLAR FIBER FR, a product specifically designed for external fire resistance requirements and highly effective in reflecting solar radiation.
Developed for use in Cool Roof systems, this product can be applied both as a new waterproofing layer and as a refurbishment coating for existing systems, enhancing their energy performance while contributing to the reduction of the urban heat island effect.
Applied as a finishing layer over waterproofing systems, COPER SOLAR FIBER FR
creates a highly reflective barrier against UV radiation, lowering the surface temperature of the roof, ensuring significant energy savings, and extending the service life of the waterproofing system.
Additionally, it improves the efficiency and output of photovoltaic installations. With its BROOF(t2) classification in compliance with UNI EN 13501-5, the product provides reliable external fire protection.
Following the success of this intervention, the client decided to replicate the solution on a second building, again selecting the water-based acrylic liquid membrane COPER SOLAR FIBER FR, which proved to be the most cost-effective and practical option.
The photovoltaic system is now fully operational, delivering both energy and economic benefits to the property owners.
This project highlights how the integration of innovative solutions can support the transition towards a more sustainable and responsible development model, working in synergy with energy efficiency policies and emission reduction strategies.
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For further details and technical information, please refer to the COPER SOLAR FIBER FR datasheets.
