Count on IKO for the best in wall insulation systems. IKO’s innovative building envelope insulation systems are at the forefront of wall design. IKO Enerfoil™ and IKO Ener-Air™ high performing polyisocyanurate rigid foam insulation sheathing systems offer the highest R-value per inch. IKO Enerfoil and IKO Ener-Air serve as an effective all-in-one product when joined together on a building exterior using IKO’s AquaBarrier™ tapes. The exterior then becomes an air barrier, a vapour barrier and wall insulation. These permeable and non-permeable products are suitable for either new construction or retrofit applications. IKO AccuCut is our new service of custom-cutting polyisocyanurate insulation sheathing at the plant to specified sizes, while creating straight and clean edges that make installation easier.