IKO ShieldBase 180 Laminated Cover Boards are a composite of IKOThermTM CoverShieldTM polyiso insulation that is factory laminated to a 180 weight polyester reinforced SBS modified bitumen base sheet. The product is available in either a film top ShieldBase 180 or sand top surface ShieldBase 180 Sanded to suit a variety of cap sheet installation techniques. The dual selvage self-adhering edges of the product allow easy joining of the base to the adjacent ShieldBase 180 boards. This allows for a quick application of the roofing system’s base layer. An excellent choice for recover applications, ShieldBase 180 reduces the dead weight load of the roofing system. The CoverShield layer of the product is a lightweight rigid foam insulation with high thermal properties, offering outstanding insulation protection and an increased R-value of 2.5. ShieldBase 180 may be applied as a mechanically fastened system, offering a fastening pattern of 18″ on-centre to reduce material and labour. Additionally, it may be adhered with IKO MillenniumTM Adhesive or fully adhered with hot asphalt.