Are engobes worth the extra cost?

Engobes are usually more expensive than ordinary roof tiles. Whether this price difference is worthwhile, and how to set up a cost-benefit calculation, read in this post. In addition, which properties Engoben really superior to other roof tiles.

Essential properties of engobes

The main difference between ordinary clay roof tiles and engobes is the high surface hardness of this brick variant.

It is formed during firing, where the roof tile is either splashed or dipped in a mixture made from clay slurry before firing. This results in a very hard glaze when firing, which is particularly resistant and hard.

Are engobes worth the extra cost?: roof

The name comes from the French, from the word for "Beguss". A competing product to engobes are glazed clay roof tiles.

The smooth, hard surface makes them a bit more resistant to air pollution (acid rain, air pollutants).

Differences in engobes

Engobe is not the same Engobe. So-called noble flours also contain glass-forming substances and end up with a finish that resembles that of a glazed tile.

The engobing that is applied may contain different metal oxides and minerals that may partially alter their properties. In essence, such admixtures only change the appearance.

The open-pored brick surface remains largely intact, even with Edelengoben, because even there the glass layer is not continuous.

Impact on durability

The life is not directly influenced by engobing. The fact that the essential properties of the body are preserved, and only an optically different surface effect is achieved by engobing, the durability extended by Engobieren only slightly.

Due to the high surface hardness only a slightly better protection against UV radiation is given, a fading is somewhat better prevented than with traditional clay roof tiles.

On the hard, very smooth surface, soiling is less likely to settle, and the algae and moss attack may be somewhat lower in some cases. But that does not always apply in all cases.

Cost use Bill

Since there is no direct longer shelf life, a cost-benefit calculation actually makes no sense. Even with a slightly longer lifespan, there would only be a very small cost advantage, as clay roof tiles can last for many decades.

Engobes compared to glazed clay roof tiles

Glazed bricks are once again considerably more expensive than the engobed models. They are also not durable much longer, but may possibly receive their high-quality appearance a little longer than ordinary clay roof tiles. A direct cost advantage does not arise even with glazed bricks.

The higher price serves only a visual appreciation. Whether this is worth the higher cost, every homeowner must decide for themselves.

An important difference between engobes and glazed bricks, however, is that in most cases engobes are more natural, while the glossy surface of many glazed bricks may look visually artificial and unnatural. In addition, these tiles are not allowed in all areas, because of them can dazzle under certain circumstances.

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