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Thermotreated poplar and ash cladding

Thermotreated poplar and ash cladding

THT wood cladding COTEPARC®

From hardwoods, whose mechanical and aesthetic advantages are already proven, Ducerf designs cladding in oak, ash and poplar treated by high temperature. This ecological process strengthens durability and stability of the species, creating a new material. The THT wood cladding opens new horizons in terms of creation and value of local species previously not used outside.


  • Cladding treated by high temperature
  • 7 profiles: Flat, beveled, rounded, rectangle, clerestory or parallelogram type
  • Full length or finger jointed boards
  • Different thicknesses and widths according to standard or singular profiles
  • Possibility of custom profiles (upon studying project)

Associated products:

Corner profil
Finishies and accessories


  • Increased durability
  • Resistance to insects and fungal agents
  • Greater dimensional stability
  • Local wood species
  • 100% natural material and treatment
  • Evolution to a uniform grey shade
  • Can be finished
thermo treated cladding
Poplar termo treated cladding bard 105
Poplar termo treated cladding bard 105
Ash cladding THT Beveled line profiled
Ash cladding THT Beveled line profiled
Ash wood thermo treated cladding  flat profil bard 100 in THT
Ash wood thermo treated cladding flat profil bard 100 in THT

Technical characteristics 

As a function of profiles:

Thicknesses 21 mm (solid), 20 mm (finger-jointed), 28mm, 40 or 60 mm
Total widths 40 - 60 - 65 - 100 - 120 or 140 mm
Lengths in full length boards from 800 to 3,000 mm, from 200 by 200 mm
Lengths in finger jointed boards from 3,000 to 5,000 mm

Jointing conforms to DTU (PU glue)
Outdoor laminate possible (MUF glue)
CE mark

Discover our range of thermo treated cladding

Ash cladding thermo treated THT

Thermo Ash cladding is a darker species than poplar, it has a beige-brown colour with a very pronounced grain, which catches the light very well.

Set up an ash cladding for the exterior wall of the building will give a very contemporary and natural look to the project.

THT poplar cladding

THT poplar wood cladding is light and durable. Poplar is a fast-growing local species in France and is also known for its lightness.

A species made durable by the high temperature treatment (THT), a 100% natural treatment, this product has an increased resistance to insects and fungi as well as a better dimensional stability.

In terms of aesthetics, high-temperature treated poplar offers a warm and contemporary chocolate colour that will evolve into a natural patina in very homogeneous shades of grey.

available species


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Ducerf Group 71120 Vendenesse-lès-Charolles, France - Phone. +33 (0)3 85 88 28 28 - Fax +33 (0)3 85 88 28 38