Slate is a building material that has been known since ancient times and has been used for many centuries. Dark slate has always played an important role in the roof covering as well as in the protection of the facade from the effects of the weather. In recent years, natural slate has become very popular again.

production method

Slate is formed geologically from claystone under high pressure and at higher rock temperatures. As in this process, the clay minerals along raised solution surfaces - hence stirs the plate-by-layer stratification of slate. Slate slabs are now sawed out fully automatically with diamond saws and removed in blocks. The further processing then takes place by splitting and trimming the slate blocks into slates approximately 5 millimeters thick, which as a rule can be used in this way and, if necessary, can be further processed. Since slate is a sedimentary rock, it is particularly resistant, even against the weather. As a slate he therefore finds use in the construction industry. Slate is often mined in Germany.


The mined slate slabs are today - as in the past - mainly used in house construction. In addition, before the introduction of large-scale industrial paper making slate for writing were still one of the main uses for the mined slate slabs, but today this use practically plays almost no role anymore. In the field of house construction, slate slabs can be used above all for covering roofs and for protecting facades from the effects of the weather. Natural shale is extremely durable, and often almost completely intact after hundreds of years. In particular, in the earlier conventional half-timbered houses, the protection provided by slate slabs of the facade was actually crucial for the durability of houses. Today one finds again a trend to the natural material slate as a facade protection, which also has a very timeless look. Today, it is no longer used only for commercial or public buildings, but increasingly also for private homes. Slightly less widespread are indoor products, such as slate tiles or slate wall cladding, and occasionally slate chippings are also used in special construction projects. The construction methods known from time to time for steps, tabletops, baseboards and slate bricks are also experiencing a significant revival in recent years, above all as genuine, ecologically derived natural building materials.

Products made of slate


Roofing slate is a very advantageous material in terms of its price-performance ratio, which can also be obtained very ecologically at home. Depending on the type of roofing, there are different types of roofing slate - curved section, rectangular stencils, pointed corners or even the so-called Old German cover need appropriately shaped roof slate, a role also plays the roof pitch. The roofing should always be done by a skilled craftsman to ensure proper roofing.

wall covering

In the area of ​​wall cladding, the second main application of slate slabs, not only the protective effect of the slate slabs is important for both new construction and renovation of old buildings, but also the good ventilation of the façade, which is much better ensured by slate slabs. as with many other designs. Here, too, the longevity and the high ecological value of slate play a role.

Dimensions and prices

For the price of slate and slate shingles on the one hand, the dimensions are significant, on the other hand, the thickness of the slate. and the shaping. Simple slates in the size 30 x 20 centimeters for covering the facade are around 2 - 3 euros per piece, but can also be much higher depending on the slate material used and the size. With the roof, it is mainly on the cover type - with so-called "wild cover" is the square meter price about 140 €, while the old German coverage is expected to be around 80 € per square meter - the price differences are therefore quite significant. The cheapest variants on the roof are curved cuts and rectangular variants, which generally cause square meter prices of 45 to 60 euros.

Inside, the prices are consistently higher - especially with slate tiles, there is a significant difference in price between frost-resistant and non-frost-resistant slate tiles. For window sills, stair treads and wall coverings, prices are usually based on the type of slate used, the dimensions and the thickness - special designs are usually much higher priced.

Process slates

When it comes to roofing with slate, one should in any case let the specialist work - the laying instructions, as DIN alone already foresees, are occasionally thoroughly complicated and necessarily require experience in order to actually achieve a correct and durable covering. Here you should work as a home improvement really only if you have appropriate knowledge.

However, this is different with facades - if it is not about specific patterns or ornaments, you can easily install slate tiles yourself. Especially when it comes to older buildings, whose façade is to be clad with slate tiles, one can also think about an insulation that is placed under the slate slabs - in these cases a counter battens can be used to build a very simple ventilated façade. Even that usually goes easily with a little skill itself.

In the simpler cases, where the façade cladding alone is concerned, slates are generally nailed. The type of cover can be different here - particularly classic is the scale shape, which has a certain similarity with the old German cover on the roof. In the façade, all the slate slabs are the same height and the same width, while they vary in size on the roof, the smaller the upper one on the roof. Slate slabs for the façade are simply nailed over one another in a classic pattern; alternatively, they can also be fastened with brackets in some types of laying.

In modern buildings, you can also rely on the rectangle double coverage - this means, above all, a clear, timeless look that looks very discreet. The minimum coverage here depends on the slate, the prescribed height coverage is 60 mm. Here, alternatively, either stapled or screwed. Running as a drawn cover while the use of material is less.

The cheapest option is the universal cover - either from right to left or in the opposite direction.


Slate is a high-quality natural material and a combination of tradition and timeless elegance, which is also suitable for roofing and facade covering of private homes. Particularly in the area of ​​roofing, the outstanding price-performance ratio plays the major role, in the façade covering especially the excellent protection of the façade from the weather, the enormous longevity and insensitivity of slate and the good ventilation properties of a slate cover. When using slate tiles indoors, the timeless elegance and durability of slate window sills, steps, tiles and wall coverings are particularly convincing.

In former times, mainly public and commercial buildings were protected with slate facades, in addition, above all, half-timbered houses, which have due to their construction usually very weather-sensitive facades. At that time slate covering was very common, mainly due to the lack of other building materials. Here is also the enormous durability of slate tiles: in historical buildings rehabilitation of the slate facades are often required after several hundred years, solely because the nails used to fasten the slates rust. The slates themselves are still completely intact. With good quality slate, it can be expected to last for several hundred years, as many historic buildings today prove.

Tips & Tricks

Slate as an ecological building material: In the construction sector in particular, many art materials are currently available which, although efficient, often consume large quantities of natural resources in their production and represent hazardous waste. Especially in ecological terms but natural building materials are much more advantageous, even more so if they can be mined and processed locally. As a rock, slate is a pure natural material that is only cut into the desired shape industrially, so the eco-balance of slate is extremely positive. Because of the excellent durability practically no waste is generated, and if so, then they can be disposed of or reused without any problems, since it is only ordinary rock.

Video Board: Eating wet slate pencil crunchy and earthy #asmr #pica