Thermal beech
[Ther-mo-bu-che] [Fagus sylvatica] [Trade names: Thermo Beech (EN), Thermobuche (DE)]
|
Origin |
Central Europe, native beech stands |
|
Raw density |
approx. 650-720 kg/m³ (slightly reduced after heat treatment) |
|
Durability class |
Class 2-3 |
|
Radial shrinkage |
significantly reduced compared to untreated beech |
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Tangential shrinkage |
greatly reduced |
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Wood color |
dark brown to chocolate brown |
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Wood structure |
Homogeneous, smooth surface, fine pores |
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Use |
Indoor and outdoor areas, facades, terraces in moderate use |
Origin and character of the wood
Thermobuche is based on European beech, a widespread indigenous hardwood that can be thermal treatment made more resistant through thermal treatment. The modification improves dimensional stability and durability, but beech remains a fundamentally sensitive material.
Thermoprocess: improvement with downsides
The cell structure is stabilized by heat, steam and controlled oxygen reduction, the durability classes The mechanical strength decreases during thermomodification: Thermo beech tends to be brittle, can splinter under load and reacts sensitively to punctual forces. Experience reports show that decking boards made of thermo beech crack more quickly than other thermowoods when used intensively.
Sources:
pur natur – experiences with thermo ash,
Holzhandel Deutschland – Thermoholz
ab 9,80 €
Garapa decking boards, FSC 100%
Price from: € 65 per m2, resistance class: 1-2
Advantages: ✓ smooth surface ✓ homogeneous, light color
Disadvantages: ✗ Ferrous materials lead to discoloration ✗ Tendency to warp if not screwed down
Tip: patio cleaning removes discoloration and
professional interim storage prevents warping.
ab 6,90 €
Teak decking boards, FSC 100%
Price from: € 130 per m2, resistance class: 1
Advantages: ✓ Best durability and dimensional stability ✓ Lowest risk of cracking and splintering
Disadvantages: ✗ Relatively expensive ✗ Not very long planks
Tip: Lay decking boards together.
ab 11,85 €
Cumaru decking boards, FSC 100%
Price from: € 70 per m2, resistance class: 1
Advantages: ✓ best durability ✓ particularly robust and scratch-resistant
Disadvantages: ✗ Partly rough surface ✗ High force development
Tip: Sand the boards after the first weathering.
