Viapol Tecno Line.A is a complete, cold applied, self-adhering roofing system designed for new construction, reroofing, and refurbishment applications. It is a safe, easy-to-apply alternative to traditional hot or torch applied systems. Viapol Techno Line.A can be applied directly to most substrates, and it is used for both residential and commercial roofing. Viapol Techno Line.A is the best roofing solution where regulations prohibit the potential hazards of torch application, because of environmental concerns.