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Tiling on Gavylon/Anhydrous Screeds

Today’s blog concerns a common dilemma for many contractors. Tiling on gavylon screeds when it is safe to tile on. Firstly you need to identify the type of screed; if it looks smooth and has no visible expansion joints over a large area then it is likely to be a gavylon screed. We recommend checking the specifications with the screed contractor to make absolutely certain.

The most important aspect is the dryness of the screed. Contractors recommend a timeframe which calculates when the screed will be dry; normally 1mm per day for the first 40mm of screed thickness then 1mm every two days for the next 30mm. However, in our experience these timeframes are rarely accurate and cannot to be relied upon.

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