Building with Flax and Hemp Bast fibre crops for building in EU and China

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1 Building with Flax and Hemp Bast fibre crops for building in EU and China Jan E. G van Dam Food and Biobased research (DLO) Wageningen UR March 2015 Helsinki 1

2 Co-operation EU-China bast fibre crops Flax-linen and fibre hemp R&D Supply chains bast fibre crops New fibre resources Processing technology and Biorefinery Innovations /(nano)cellulose Market position Marketing & market diversification Ecological impact (LCA) Knowledge exchange and co-operation 2

3 Co-operation EU-China bast fibre crops International Twinning event in Wageningen (NL) October participants Markt evaluation rapport Fibre crops in Europe and China Textiles / non-woven Paper and pulp Composites Building materials Other Mutual interest

4 Fibre based construction Biobased building: Renewable Hemp house (UK, FR) Hemp in concrete (Hempcrete) Soprema roofing membranes Flax door panels, insulation Separation walls Grow2Built / CA PEM June 2014 NAROSSA, POZNAN

5 Biobased building materials Biobased building in EU Feedstock and manufacturing processes Building materials and innovation what has been achieved with flax and hemp fibres? Examples

6 Biodegradable building materials

7 Green Deal Biobased building Promotion of sustainable initiatives Bundling of companies, organisations and governments Concrete steps Reduction of restricting legislation New biobased Chain co-operations Knowledge Data base

8 Knowledge data bank biobased building Disclosure of know-how and scientific knowledge on biobased building materials RVO Green Deal Digitalise catalogue on biobased building materials SBR-CURnet / ICDuBO

9 Knowlegde data base biobased building Overview of relevant projects and commercial biobased products Growing interests from the building sector, from manufacturers, architects commisioners and builders (in Dutch)

10 Flax and hemp building products Bast fibre based products Shives & woody core products Oil seed products Bio based building materials & Health Policy paper bio based building EC -

11 Flax and Hemp building products Crop Plant part Product By-product Use in building and construction Seed Oil Linoleum Paints & coatings Putty Press cake - Flax / Hemp Stem Fiber (bast) Fabric: curtains, wall coverings, batten, bags & canvas Twine: Ropes & twine, lines Non-woven: Insulation mats Paper: Sheets, Foam, fluff Cellulose: Polymer and mineral composites. Shives (hurts) Particle boards, mineral composites

12 Flax insulation

13 Hemp Insulation

14 Flax composite boards

15 Prefab hempcrete elements

16 Linoleum flooring

17 On going R&D Fire retardant building materials Fibre cement / concretes Biobased resins and polymer composites Biobased building in relation to indoor climate and health Policy event Bâtibouw Brussels NAROSSA, June POZNAN

18 Policy event Brussels Bâtibouw Building Fair Certification Legislation Knowledge and awareness Research needs Communication and promotion Primary production link to building industry

19 1 st International Conference on Bio-based Building Materials June 22 nd - 24 th 2015 Clermont-Ferrand, France LOCAL CULTIVATED HEMP AND FLAX AS RESOURCE FOR BIOBASED BUILDING MATERIALS - J.T.W. Verhoeven, J.E.G. van Dam, L. Gaquere Farmer Processor Manufacturer Retailer Commissioner Biobased building supply chain Contractor Architect User Constructor

20 Potential of hempcrete in building Globally 4 billion tons of cement are consumed annually EU is contributing only 6% or ca. 240 million ton. If only 1% of hemp shives is added 2.4 million tons of hemp shives are required. This is 55x the current hemp shives market in EU ( tons, EIHA 2012) Require an hemp acreage increase to approximately 0.9 million ha arable land. Requires a equally large market expansion for bast fibre

21 Conclusions product chain development concerning hemp and flax based biomaterials through informing of and collaboration with all relevant stakeholders. There is a significant market potential for biobased building materials. An increasing number of initiatives and examples can be found throughout Europe and worldwide Various challenges hinders introduction into mainstream building practice and the chain of biobased building materials to mature

22 Conclusions Building and construction industries, as important stakeholders in the chain need to be made aware of the potential that is offered by biobased building materials. Public institutes can stimulate the use of biobased building materials by initiation of pilots and prescription in procurement policy. At the same time building regulation needs to be harmonized for innovative biobased building products.

23 Thank you for your attention 感谢您的关注