For the MET team, this marks an important and meaningful milestone. As a distributor of Solartag integrated solar roof tile solutions in Lithuania and the wider Baltic region, we can confirm that this product has successfully completed the full TÜV Rheinland certification program—one of the most rigorous and internationally recognized quality assessment processes.

This achievement demonstrates not only the technical maturity of the product but also MET’s strategic commitment to delivering solutions that meet the highest European standards of quality, safety, and reliability.

Certification Confirming the Reliability of the Solution

The testing carried out by TÜV Rheinland involved a comprehensive evaluation of Solartag integrated solar roof tiles, assessing their reliability, safety, and durability under real operating conditions. The certification program focused not only on individual components but also on the performance of the solution as a fully integrated roofing system, complying with both photovoltaic and construction product requirements.

During the certification process, Solartag integrated solar roof tiles were tested under the following conditions:

• extreme temperature cycles ranging from –40 °C to +80 °C, assessing material stability, watertightness, and changes in electrical performance;

• intensive UV exposure and climatic ageing processes to verify long-term resistance to environmental impacts;

• wind, snow, and hail loads, simulating real and critical weather conditions typical of various European regions;

• mechanical strength and electrical safety tests, confirming safe operation throughout the entire lifecycle of the system.

All tests were successfully passed, confirming that the solution complies with strict international quality and safety standards. This proves that Solartag solar roof tiles are a reliable and long-term BIPV solution, suitable for deployment across different climate zones, including the more demanding conditions of the Baltic region.

Why Is This Important for MET and Our Clients?

This certification is significant not only as a technical validation but also as a clear signal of reliability and quality for MET’s clients, partners, and project developers. It enables MET to confidently offer an aesthetic, technically verified, and independently certified BIPV roofing solution that serves as a modern alternative to traditional roofing materials.

Solartag solar roof tiles make it possible to combine high architectural requirements, efficient energy generation, durability, and safety into a single, integrated solution. This makes them suitable for residential, public, and commercial buildings where both energy performance and architectural quality are essential.

We sincerely thank the Solartag team for their smooth and professional cooperation, and TÜV Rheinland for a thorough and responsible certification process that further strengthened the reliability and value of this solution. MET continues to work purposefully to ensure that certified, innovative, and architecturally integrated solar energy solutions meeting the highest European standards are available to the Baltic market