Count on IKO for the best in non-permeable wall insulation systems. IKO’s innovative building envelope insulation systems are at the forefront of wall design. IKO Enerfoil™ high performing polyisocyanurate rigid foam insulation sheathing system is 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 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.