IKO has been supplying Castle Building Centre locations with premium quality products and expert service for over 25 years. Established over 60 years ago, IKO remains a family-run business, engaged in the manufacture and sale of asphalt roofing, waterproofing and insulation materials. It is a vertically integrated company, producing many of the raw materials used in manufacturing its shingles, such as mineral stabilizer, roofing granules, fiberglass strands, and fiberglass mat. Most key components are manufactured within IKO’s family of companies, under its own stringent quality assurance. This provides superior quality assurance over all of its finished products.

IKO manufacturers many forms of asphalt shingles at its facilities in North America and Europe. Its premium architectural shake and slate shingles set the standard in durability and design. With over 50 years of experience IKO’s quality is second to none. The IKO family of companies has over 25 manufacturing plants throughout North America and Europe.