{"id":3223,"date":"2025-05-28T14:26:00","date_gmt":"2025-05-28T12:26:00","guid":{"rendered":"https:\/\/ccbgreentech.com\/faq\/"},"modified":"2026-01-19T14:01:48","modified_gmt":"2026-01-19T13:01:48","slug":"faq","status":"publish","type":"page","link":"https:\/\/ccbgreentech.com\/en\/faq\/","title":{"rendered":"FAQ"},"content":{"rendered":"\t\t
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Carbon footprint<\/h2>

How can TimberRoc\u00ae wood-based concrete, even if it is a biobased material, benefit from a negative carbon footprint?<\/h3>

This is negative because the quantity of CO2 stored in the wood during its growth is greater than the quantity of CO2 emitted during the other stages of the life cycle.<\/p>\n

Negative accounting of the CO2 stored in wood during its growth is only possible, according to the standardized methodology, if the wood comes from a sustainably managed forest, i.e. one whose renewal has been verified.<\/p>\n

We work mainly with PEFC-certified operators to ensure this sustainable management.<\/p>\n<\/div><\/div><\/div><\/div>

Has a third-party organization validated that TimberRoc\u00ae wood-based concrete has a negative carbon footprint? <\/h3>

There is a standardized methodology for assessing the environmental impact of a product over its life cycle, taking into account several impact criteria and all stages of the life cycle (extraction of raw materials, transport, manufacture, use, end of life, etc.). <\/p>\n

In the building industry, this takes the form of an FDES (Fiche de D\u00e9claration Environnementale et Sanitaire - Environmental and Health Declaration Sheet), which is also a standard-based procedure, but not mandatory.<\/p>\n

We have had our own verified by an accredited auditor, enabling them to be officially published on the government's INIES website, which lists all verified ESDSs.<\/p>\n<\/div><\/div><\/div><\/div><\/div><\/div>\t\t\t\t<\/div>\n\t\t\t\t

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Production<\/h2>

What is your production capacity?<\/h3>

Our prefabrication partners have dedicated wood-based concrete plants with an annual capacity of over 600,000 m\u00b2\/year of walls and floors in France.<\/p>\n<\/div><\/div><\/div><\/div>

Where do you produce TimberRoc\u00ae wood-based concrete?<\/h3>

For the time being, wood-based concrete is produced exclusively in mainland France, by our licensed prefabrication partners: Spurgin Leonhart, R-Technologies and Capremib.<\/p>\n

Spurgin Leonhart prefabricates our different construction principles at its plants in La Roque-d'Antheron (13) and Migni\u00e8res (28).<\/p>\n

R-Technologies' production site is located in Viry (74).<\/p>\n

Since June 2025, Capremib has also been prefabricating our construction principles in Reims (51).<\/p>\n<\/div><\/div><\/div><\/div><\/div><\/div>\t\t\t\t<\/div>\n\t\t\t\t

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Acoustics<\/h2>

Since wood-based concrete has a lower density than conventional concrete, what about between-level acoustics for slabs?<\/h3>

With DS1 floors, the presence of a traditional concrete compression slab improves acoustic performance.<\/p>\n

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As with a dividing wall, the acoustic performance of a floor system depends on the number of layers making up the system and the nature of these layers (screed, acoustic resilient, floor covering, false ceiling, etc.).
The acoustic performance of our DS1 floor system (tested by the CSTB) is given below for a configuration without suspended ceiling or floor covering (airborne attenuation index and impact noise level).<\/div>\n
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What about fa\u00e7ade acoustics?<\/h3>

Here are the results of tests carried out with FCBA and CSTB.<\/p>\n

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The wood<\/h2>

What wood do you use to make TIMBERROC\u00ae wood-based concrete?<\/h3>

We supply pulpwood mainly from thinning, improvement and coppicing cuts, all of which have the particularity of harvesting small-volume trees.<\/p>\n

These cuts are not classified as \"timber\". Pulpwood comes in the form of small-diameter, non-linear logs, and is mainly intended for the production of paper pulp and wood energy. <\/p>\n<\/div><\/div><\/div>

What do you do with wood waste during production? Do you recycle it? <\/h3>

We use all the pulpwood we supply, so 100% of the wood is recycled.<\/p>\n<\/div><\/div><\/div>

Where does the wood used to make TimberRoc\u00ae wood-based concrete come from?<\/h3>

The wood comes exclusively from French forests, and as such has the Bois de France label.<\/p>\n

We source most of our wood from PEFC-certified foresters, i.e. those committed to sustainable forest management.<\/p>\n<\/div><\/div><\/div><\/div>

Faced with the current problem of wood breakage, will you have enough raw materials to make wood-based concrete in the next ten years?<\/h3>

Fast-growing demand on the wood market is mainly due to the timber construction sector, and therefore mainly concerns lumber.<\/p>\n

As our wood supply for TimberRoc wood-based concrete is pulpwood, we are much less affected.<\/p>\n<\/div><\/div><\/div>

What does "additive wood" processing involve?<\/h3>

This is simply the addition of a non-chemical additive that optimizes the bond between cement and wood aggregate. The FDES of the wood aggregate certifies that there are no health concerns. <\/p>\n

There are no VOC emissions (A+ label).<\/p>\n<\/div><\/div><\/div><\/div><\/div><\/div>\t\t\t\t<\/div>\n\t\t\t\t

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Construction principles<\/h2>

What construction principles can be envisaged? Are they certified, or will they be shortly? <\/h3>

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Have you carried out any test projects?<\/h3>

Since 2006, more than sixty projects have been completed in France and fifteen in Italy, and feedback from users is unanimous on the thermal performance of wood-based concrete walls:
significant energy savings are achieved, and summer comfort and acoustic quality are remarkable.<\/p>\n<\/div><\/div><\/div>

With regard to the resistance of your timberroc\u00ae wood-based concrete load-bearing walls and their use in seismic zones, do you have any evidence to justify this in terms of the Eurocodes?<\/h3>

As part of our technical approval process with the CSTB, we have carried out numerous mechanical tests on a material scale and on the scale of structural elements (3-meter-high walls), enabling us to validate the use of our construction systems in seismic zones.<\/p>\n

The calculation methods presented in our approvals comply with EUROCODES.<\/p>\n<\/div><\/div><\/div>

Although there are several possible implementations, is ITI preferable with wood-based concrete facades? If so, why? What type(s) of treatment are preferred for thermal bridges in ITI? <\/h3>

The use of TimberRoc wood-based concrete creates a wall with distributed insulation and inertia.<\/p>\n

In ITI applications, the boards integrated into the slab nose panels help reduce thermal bridges. TimberRoc wood-based concrete also works well in ITE applications. <\/p>\n<\/div><\/div><\/div>

Can TIMBERROC\u00ae wood-based concrete be used to make beams?<\/h3>

No, wood-based concrete only comes in the form of prefabricated panels.<\/p>\n<\/div><\/div><\/div>

What are the usual wall and floor thicknesses for different construction principles?<\/h3>