Q&A for How to Clean a Tile Roof

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I recently had my red barrel tile roof cleaned. the gutters were full of red sand from the tile-cleaning procedure. Is this normal? After a few years of cleaning you might not have a roof left.

Mister Grout

Community Answer

Yes, that is normal. Barrel roof tiles last 50 to 100 years. Cleaning any hard surface is like exfoliating: scraping the top layer to a fresh layer of tile.

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Question

Is acid-cleaning safe for tiles?

Mister Grout

Community Answer

Yes, cleaning tiles with acid is safe if you proceed carefully. Be sure to read and follow the directions provided.

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Question

When water-blasting the tiles, will water get into the house? If so, why?

Lina DaSilva

Top Answerer

Water might enter the house because pressure washers release water at very high pressure. This force can drive water beneath the tiles, especially if they are cracked, broken, or loosely fitted. Also, the underlayment beneath the tiles provides additional water protection. If this layer is damaged or worn out, high-pressure water can penetrate through it. Spraying water at incorrect angles or too close to the roof surface can force water underneath the tiles. In addition, if there is pre-existing damage like cracks or gaps in the tiles or roof structure, pressure washing can exacerbate these issues, allowing water to seep in.

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Is muriatic acid safe to clean red barrel roof tiles ?

Lina DaSilva

Top Answerer

Generally, muriatic acid can be an effective cleaner for tough stains on red barrel roof tiles, but it's very strong and must be used with caution. It's vital to dilute it properly—typically one part acid to 10 to 15 parts water—and to use protective gear like gloves, goggles, and a face mask.

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