High-quality material retains flexibility for a long period of time, it does not deform and does not show micro cracks, it is characterized by a high coefficient of stretch, distinguishes by environmental and mechanical stability towards damage (natural events, change in temperature, etc.)
Quality is a core value for MODERNROOFING which is why we mainly use SBS modified bitumen polymeric materials in our work.
The warranty period for flat roofs varies from 10 up to 50 years in terms high-quality materials and highly skilled craftsmen.