Yes, of course, this is precisely what makes a clay tile roof warm and attractive. Colour shades may be present on the tiles, they are inherent to the manufacture and firing of clay products. This is the charm of clay tile roofing.

Archaeological sites still yield tiles dating back several millennia... Unless there is a manufacturing defect, which is unlikely today thanks to technological advances and controls at the factory gate, the tiles are guaranteed to withstand the elements for several generations, but still not to withstand hammer blows! The quality of the clays used, a noble material, and the respect of the manufacturing standards, are the key to the quality of a good tile. The lifespan of a clay tile can be around 100 years or more, especially if the roof is well maintained and well ventilated.

Greening is a natural phenomenon of algae and moss growth that has existed for as long as life has existed on our planet. Any material, including inorganic materials, exposed to the outside world, is eventually colonised by algae-like micro-organisms. Until a few decades ago, this phenomenon was hardly noticed because it took several years to manifest itself. Human action over the last few decades has significantly modified several environmental conditions in a way that is unfortunately favourable to greening:
- increased sources of atmospheric carbon feed via pollution (combustion gases and industrial gaseous/particulate emissions: soot and volatile organic compounds)
- increased sources of atmospheric nitrogenous nutrients through the intensive use of nitrogenous fertilisers, especially in rural areas.
There are also accelerating conditions: the exposure of your house to the wind, a lack of ventilation in front of the tiles, the orientation of your roof to the north or in the shade for example. To avoid this phenomenon of greening, it is important to ensure good ventilation of the underside of the tiles in order to accelerate their drying out. The rules of the profession also recommend regular maintenance of the roof in order to slow down this proliferation. It should be noted that greening, if regularly maintained, does not affect the intrinsic quality of TERREAL clay tiles.

The accessories, also called special parts, have a specific technical role for a good realization of the roof. They can also simply be intended to enhance the aesthetics and embellishment of the roof. Terreal and its brands strive to offer a very complete range of products, enabling the creation of an all clay roof, a guarantee of longevity and aesthetics. These wide ranges also allow roofing companies to practice "dry laying", which avoids the use of mortar. For top-of-the-range tile models such as flat tiles and canal tiles, traditional mortar laying is encouraged. It is facilitated by a range of traditional accessories: the professional roofer then expresses all his know-how: "cock's crest" finishes for the ridge, special cutting of the edges, of certain rows of tiles along the ridge.

Tile fixing may be necessary either to prevent the tiles from slipping or to prevent them from being lifted by wind action on the roof. These devices are described in the DTU 40.2 series. The number of tiles fixed per square plain depends on the wind and weather exposure. Terreal then recommends that the tiles and accessories are fixed all around the roof.

The choice of accessories for the plain tile, e.g. cat flaps or socket tiles, is free. However, to reduce risk, it is advisable to use the accessories of the majority tile in the dominant colour. There are two choices for the edge, ridge, hip and valley lines: use the accessories of the dominant colour or make the same colour combinations as for the tiles.

The photovoltaic modules are connected to a micro-inverter which converts the direct current from the photovoltaic modules into alternating current (230V).
The micro-inverter is connected to the electrical panel of your home via a circuit breaker.
The energy produced by the modules is consumed by the electrical appliances in operation or on standby in your home. The surplus is injected into the electrical network.

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The surplus of solar production not consumed is sold to EDF at a fixed price over 20 years. A contract is signed between you, the electricity producer, and EDF, which buys it back. The feed-in tariff differs depending on whether you want to sell all or part of your electricity production.
If necessary, Terreal's advisors will assist you in managing the administrative procedures.

The monitoring of its electricity production is done either by means of a pulse meter that displays the kWh produced, or via a communication gateway that allows the instantaneous production of each microinverter to be monitored online. Both of these devices can be installed after your installation has been commissioned.

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Even if the means of communication have evolved considerably, it is still preferable to place orders in advance with our materials dealers, so as to be able to control the timely supply of tiles and all accessories.

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