FRENNL
Building, heritage, restoration, Belgium & Luxembourg

Dry ice blasting for timber frames & wood structures

Mould, soot, deposits and biofilm on your timber frames, beams and woodwork. Dry ice blasting cleans wood without water, without chemicals and without abrasion: fibres are preserved, structure intact, original treatments respected.

Wood fibres preserved No water, zero moisture Mould & soot removed Ideal after fire or damage
Why dry ice blasting

The gentlest technique to clean wood

Wood fibres intact

Unlike sandblasting which tears fibres or pressure washing which swells and splits wood, dry ice blasting lifts surface deposits without altering the wood's internal structure.

Zero moisture added

Water swells wood, encourages mould and weakens joints. Dry ice blasting leaves no moisture behind, ideal for timber frames and interior woodwork.

Effective after fire

Soot and carbonised residue on timber frames partially affected by fire are effectively removed, complementary to our post-fire service.

Compatible with listed heritage

Medieval timber frames, half-timbering, historic woodwork: dry ice blasting is the ideal solution for old, fragile wood that cannot withstand aggressive methods.

Applications

What we clean on your wood structures

01

Timber frames & visible beams

Cleaning of traditional timber frames, beams and failing trusses.

02

Half-timbering & wooden frameworks

Precision cleaning of half-timbering, timber panels and old wood-framed building structures, mould and deposits removed with no damage to infill.

03

Interior woodwork & flooring

Cleaning of wall panelling, interior woodwork, old flooring and wooden staircases, removal of deposits with no abrasion or added moisture.

04

Cladding & exterior coverings

Cleaning of cladding, shutters and exterior wood coverings, moss, lichen and dirt removed with no degradation of stains and treatments.

05

Structures after fire or water damage

Decontamination of sooted timber frames after fire and wood structures affected by mould after water damage.

06

Furniture & solid wood elements

Cleaning of solid wood pieces, antique furniture and carved elements, on request depending on accessibility.

Frequently asked questions

Timber frame & wood cleaning

No. The temperature of dry ice (−78.5 °C) creates a thermal shock on surface deposits without affecting the bulk of the wood. Ambient heat and the wood's limited thermal conductivity mean the wood's internal temperature does not drop to problematic levels.
Dry ice blasting effectively removes surface mould and visible spores. For mould deeply embedded in the fibres, a complementary fungicide treatment may be necessary after cleaning. Icetec assesses the condition of the wood and advises on the overall solution.
Yes, that is precisely the advantage. Timber frames are cleaned in place from scaffolding. No dismantling of trusses or joints. The intervention is scheduled according to accessibility and attic configuration.

Request a free quote

Describe your wood structures, the type of deposit and accessibility. An Icetec expert will assess feasibility and get back to you, no obligation.

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