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Overlay Kits

The overlay kit uses an expanded polystyrene (eps) sheet with foil backing, 25mm thick with grooves to hold the pipe. The sheet comes with two spacing options 150mm or 200mm (please specify which is needed).
 

The overlay kit works best on a concrete substrate with a timber floor cover, preferably an engineered board which will not shrink with heat. Overlay can also be used with tile if a plywood base is included but it’s not recommended as it may suffer from movement.