In the process of thermal modification, the structure of wood is changed and its resilience is enhanced without the addition of chemicals. This literally means the „baking” of the wood, which absorbs less moisture as a result. The material of EDELHOLZ terrace decking planks: the ash is perfectly suitable for this treatment, as this species of wood is even in its raw, natural form very hard and resistant.
Natural wood is one of the most popular covering materials, that is true also for terrace decking. Though the excellent qualities of wood allow its outdoor application, but the exposure to natural elements makes an even stronger structure necessary. The thermally modified wood material is stronger, harder, its lifespan is longer, and it is more resistant to external effects (e.g., weather, moisture, fungi).
Thermal modification changes the colour of the wood. The original light, natural colour turns into saturated, darker brown with fine, reddish shade.
Later, due to UV-radiation, the terrace decking gains a pleasant, light-grey colour (see on the image). This is part of the natural transformation processes of wood, and it is also a beautiful phenomenon. It is important to know that the change in colour cannot be prevented with natural substances for surface treatment.
UV-radiation causes the natural change in the colour of the terrace decking. Covered surface (e.g., under furniture) is not exposed to UV, this is why it keeps its original colour. The difference between covered and not covered parts can be significant! Constantly shaded parts of the terrace decking will be different from those exposed to sunlight. This can be observed between parts not covered and covered by furniture as well, though in this case we can decrease the difference by moving the pieces of furniture from time to time.
Natural formation of hairline cracks (see on the photo): the weather can force the wood to form small cracks, but these have no impact on the lifespan of the system. With the help of moisture-barrier wax the crack formation on the edges of the terrace decking planks can be restricted to an extent.
As time goes, and under extreme weather circumstances the planks are inclined to warping.
Differences in colour and texture between the planks are natural properties of wood, and they cannot be removed.
Thermo ash terrace decking must be stored in a covered place until the installation. If it is not possible, the stacks must be placed without having direct contact to the ground, and they must be covered with dark, waterproof tarpaulin.
It must be ensured that both the ground (e.g., concrete) and the terrace decking have a slope of min. 0.5%. If the terrace decking will be installed on gravel surface, we recommend the use of geotextile to prevent the undesired growth of plants under the system.
Please, do not put poison for pests and rodents under the terrace decking system!
The first layer of the system is the well-prepared ground with the necessary slope. On the ground plastic levelling soles are placed, their task is to hold the substructure. The levellers automatically set the necessary distance between the ground and the wooden joints of the substructure. There are clips between the wooden joints of the substructure and the planks of the terrace decking, these also set the desired distance of 8 mm between the layers.
A minimum distance of 50 mm is necessary between the ground and the substructure, but it is easy to keep with the help of the levelling soles. The clips automatically set the required distance of 8 mm between the substructure and the terrace decking.
The terrace decking planks can extend beyond the last wooden joint of the substructure by max. 50-100 mm. Between the planks there must be 7 mm (the SFIX clips set this automatically too). The free sides of the terrace decking must not be completely closed, for proper ventilation there is a need for a ventilation gap until the height of 50 mm.
It is not allowed to install EDELHOLZ outdoor terrace deckings in closed, wet spaces e.g., saunas or around indoor pools/jacuzzies.
Installation must happen according to the installation guide in order to ensure the long lifespan of the terrace decking.
It is recommended to refresh and care for the terrace decking once a year, for this the most suitable time is spring or autumn. Before cleaning and care, please, read the EDELHOLZ installation guide and care instructions for outdoor terrace decking!
The thermo ash terrace decking is a natural solution, providing an aesthetic look and unforgettable atmosphere. What’s more, unlike plastic composites, our terrace decking decomposes to 100% after its lifespan. The raw materials used by EDELHOLZ come from responsible, sustainable forest managements, so choosing ash terrace decking is good for the climate too. Terrace decking made of natural wood is also practical and comfortable, because it does not heat up in the sun. Should one of the terrace decking planks get damaged, it is enough to replace only this plank, there is no need to reinstall the whole terrace decking.