For over 70 years, a family-owned company in Canada has been making superior roofing and insulation products and has grown into a global giant as a result. In 12 years with IKO Industries, Vince Carrier has seen it all on the manufacturing and operations side of the business and joins Patrick Flannery to tell us how it’s made and why it’s good. How are shingles made anyway? What’s the difference between different kinds of insulation board? Where do all those little grains on the shingles come from? All the questions you’ve wondered about for years but were afraid to ask.