Rainbow Roof is an Indonesian roofing brand produced by PT Timur Mas Abadi, a manufacturer established in 1981. Part of Rainbow Group, the company has developed metal roofing products for more than four decades, emphasizing quality, innovation, durability and environmental friendliness. Its stone-coated metal roofing is designed to provide protection for homes and is backed by a 25-year warranty. The product range also includes metal roofing accessories, metal deck, fiber roofing, insulation and truss materials. Across its portfolio, the company offers brands including Rainbow, Arista, Vendotti, Frisco, Minimalist, Prestige, Toscano and Sirap.

Rainbow Group serves construction customers in Indonesia and abroad, supported by professional staff and a distribution network throughout Indonesia. Its services and resources include site visits with Rainbow metal roof purchases, roofing calculations, technical information, installation guidance, project references and product brochures. Customers can also contact the company for product, order and distributor enquiries. PT Timur Mas Abadi holds ISO 9001:2015 certification and reports domestic component level certificates, reflecting its commitment to quality management and local production.