Phone: 800-771-1711, email: sales@roofhugger.com Roof Hugger produces “Sub-Purlins” to retrofit existing metal roofs. Our Hugger system can fit any existing panel profile High Strength Structural G-90 Galvanized Steel. It can also add additional strength to existing purlin system. No Charge preliminary design load analysis. Roof Huggers meet new wind and snow load codes. In addition they can integrate solar heat recovery and insulation systems. Full Cad details, section drawings and specifications available online