IKO Undertile Felt (1F)

IKO Undertile Felt (1F) is the traditional underslating, complying to British Standards and still favoured by many roofers. IKO Undertile reinforced slatersÍ felt is manufactured specifically for use as an underslating beneath tiles or slates. It can also be used as a vapour retarder in built-up roofing. IKO Undertile Felt has a felt fibre base combined with a layer of open weave hessian, saturated and coated with bitumen and surfaced with sand.