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Deep-impregnated wood – a durable solution for outdoor use

Professional wood protection through pressure impregnation

Deep impregnation (by vacuum-pressure method) is the most effective way to ensure long-term resistance of wood against biological and weathering effects. During the process, the wood preservative is introduced under pressure deep into the wood’s cellular structure, ensuring uniform protection of the material across the entire cross-section.

Thanks to this, deep-impregnated wood is particularly suitable for structures where the wood is in constant contact with moisture, the ground or the outside air.

The process

Pre-vacuum: The air in the pores of the wood is removed to ensure maximum penetration of the impregnation agent.

Pressure phase: the impregnation agent is pressed into the wood under pressure (up to 12 bar).

After-treatment and drying: excess solution is removed and the wood is dried under controlled conditions.

The process ensures stable quality and compliance with applicable standards.

Areas of use

  • Building components and load-bearing structures
  • Garden and terrace materials
  • Facade elements
  • Posts, fences and other wooden materials that remain in the outdoor environment

Protection classes and standards

The impregnation process is carried out according to the EN 335 standard and we offer two main protection classes:

  • HC3 (H3): Wood exposed to weathering, not in direct contact with the ground
  • HC4 (H4): Wood in contact with the ground or water
 
All wood preservatives used are certified and meet EU environmental and safety requirements.
 

Advantages

  • Long-term bioprotection – protection against fungi, mold and insect damage
  • Less maintenance and longer lifespan
  • Controlled quality and traceable production process
  • Suitability for industrial use and compliance with building standards

Interested? Contact us!

Our Details

J. Roots Timber OÜ

Karksi küla, Karksi vald, Viljandi maakond 69104

Viktoria Kopp

Production Manager
+372 53443790 viktoria@rootstimber.ee

Cäroliin Sarv

Logistics
+372 5114661 caroliin@rootstimber.ee

Joonas Saska

Purchasing, Sales
+372 56615079 joonas@rootstimber.ee