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Ecobuild stand 2007mh1


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Ecobuild stand 2007mh1

  1. 1. U.S. Heritage Group, Inc., a company dedicated to the production and use of lime-based masonry materials, has the unique opportunity to partner with Lime Technology Limited in bringing Tradical ® Hemcrete® to the U.S.
  2. 2. Better than Zero Carbon Building with Tradical ® Hemcrete ®
  3. 3. What is Tradical ® Hemcrete ® ? <ul><li>Hemcrete ® is a blend of a special lime based binder (Tradical ® HB) and specially prepared hemp shiv (Tradical ® HF) </li></ul><ul><li>Together these form a sustainable bio-composite construction material that combats climate change by capturing carbon and delivering high performance airtight, insulating walls </li></ul><ul><li>The carbon capture environmental benefits of Tradical ® Hemcrete ® are an opportunity NOW and EVERY YEAR to combat climate change </li></ul>
  4. 4. Tradical ® HB is a mineral binder made from limestone
  5. 5. Tradical ® HF is specially processed industrial hemp
  6. 6. Tradical ® Hemcrete ® Walls <ul><li>Tradical ® Hemcrete ® requires a structural frame </li></ul><ul><li>Contributory racking strength simplifies frame design </li></ul><ul><li>Frame materials can be timber, steel or concrete </li></ul><ul><li>The dry environment protects the frame materials </li></ul><ul><li>Like concrete, Tradical ® Hemcrete ® can be poured, placed, pumped and sprayed </li></ul>
  7. 7. Features of Tradical ® Hemcrete ® <ul><li>Low density </li></ul><ul><li>High thermal insulation </li></ul><ul><li>High sound insulation </li></ul><ul><li>High thermal inertia </li></ul><ul><li>Good vapour permeability </li></ul><ul><li>Flexibility </li></ul><ul><li>Carbon capture </li></ul><ul><li>Creates comfortable healthy buildings </li></ul><ul><li>Fire and pest resistant </li></ul><ul><li>Fast and economic construction </li></ul><ul><li>Recyclable </li></ul>
  8. 8. European Tradical ® Buildings Since 1996
  9. 9. The Stern Review <ul><li>“ What we do in the next 10 or 20 years can have a profound effect on the climate in the second half of this century and in the next” </li></ul><ul><li>“ The benefits of strong, early action on climate change outweigh the costs.” </li></ul><ul><li>Within a century, average temperatures may rise by between 3.6°F & 5.4°F if action is taken now and by as much as 9°F if we carry on as we are. </li></ul><ul><li>“ An illustration of the scale of such an increase is that we are now only around 9°F warmer than in the last ice age.” </li></ul>
  10. 10. CO 2 Emissions <ul><li>U.S. CO 2 emissions were around 5,877 million metric tons (MMTC) in 2006. </li></ul><ul><li>38%—more than the transportation and industry sectors—of U.S. CO 2 emissions come from the construction and use of buildings </li></ul><ul><li>Tradical ® Hemcrete ® locks up carbon within the structure of buildings and reduces ongoing emissions </li></ul><ul><li>Tradical ® Hemcrete ® can help combat climate change by delivering better than zero carbon buildings </li></ul>
  11. 11. Industrial Hemp Growing <ul><li>Industrial hemp is usually grown as a break crop sown around May and harvested around August in the U.K. It is also cultivated in Canada, other countries in Europe, Australia, and throughout Asia. </li></ul><ul><li>6 hectares can produce up to 10T of hemp </li></ul><ul><li>It takes around 14 weeks to grow from seed to 4m high (faster than almost any other plant) </li></ul><ul><li>60% of hemp is shiv that becomes Tradical ® HF </li></ul><ul><li>6T of hemp is enough to build a typical house </li></ul>
  12. 12. Carbon Sequestration (simplified) <ul><li>Photosynthesis & molecular weights </li></ul><ul><li>water + Carbon Dioxide glucose + Oxygen </li></ul><ul><li>6H 2 0 + 6CO 2 C 6 H 12 0 6 + 60 2 </li></ul><ul><li>6(18) + 6(44) 180 + 6(32) </li></ul><ul><li>glucose cellulose + water </li></ul><ul><li>C 6 H 12 0 6 C 6 H 10 0 5 + H 2 O </li></ul><ul><li> 180 162 + 18 </li></ul><ul><li> </li></ul><ul><li> 6CO 2 = 264 = 1.63 (actual figure 1.84 ) </li></ul><ul><li>C 6 H 10 0 5 162 </li></ul>
  13. 13. The Lime Cycle CO 2 CO 2 H 2 O H 2 O Ca(OH) 2 CaCO 3 LIMESTONE CALCIUM CARBONATE QUICKLIME CALCIUM OXIDE HYDRATED LIME CALCIUM HYDROXIDE Limestone is burned in a kiln at around 900 °C to make quicklime Quicklime is slaked with water to make dry hydrated lime or lime putty Air limes harden by drying and carbonation. Heat CaO Heat All CO 2 emitted from the calcination of the limestone can be re-absorbed upon full carbonation The CO 2 emitted by the burning of the fuel is not re-absorbed
  14. 14. Tradical ® HB Binder Constituents <ul><li>Lime – hydrated air lime CL90 to BS EN 459 </li></ul><ul><li>Cement – also a Limestone based, mineral binder product sourced from Castle Cement - the UK’s leading energy efficient cement manufacturer* </li></ul><ul><li>Mineral fillers </li></ul><ul><li>Specialist additives </li></ul><ul><li>Patent protected technology </li></ul><ul><li>Developed in France over 15 years </li></ul><ul><li>* Through the development and use of environmental and sustainable fuel technologies and process control </li></ul>
  15. 15. CO 2 Emissions & Sequestration <ul><li>Tradical ® Hemcrete ® wall mix </li></ul><ul><li>35 ft 3 of wall mix contains:- </li></ul><ul><li>243 lbs hemp shiv 12.6 lbs CO 2 /ft 3 </li></ul><ul><li>485 lbs Tradical ® HB 5.8 lbs CO 2 /ft 3 </li></ul><ul><li>Net carbon capture 6.8 lbs CO 2 /ft 3 </li></ul><ul><li>                                                                                                </li></ul>
  16. 16. CO 2 Emissions Comparison <ul><li>A 1 foot thick Hemcrete ® wall will lock up 6 lbs CO 2 / ft 2 </li></ul><ul><li>A 1’-8” thick Hemcrete ® wall will lock up 11 lbs CO 2 / ft 2 </li></ul><ul><li>Typical new build conventional cavity wall construction causes around 20 lbs CO 2 / ft 2 emissions </li></ul>
  17. 17. CO 2 Emission Savings <ul><li>It is possible to save up to ~31 lbs CO 2 / ft 2 emissions in a buildings walls by changing materials </li></ul><ul><li>This could save around 30T of CO 2 emissions in the walls of a typical house* </li></ul><ul><li>Tradical ® Hemcrete ® use in the roof and floor slabs can increase this to up to 50T per house </li></ul><ul><li>The potential savings run into millions of tons per year as well as creating better buildings </li></ul><ul><li>* (based on semi-detached house with GFA of 517 ft 2 and detached house with GFA of 560 ft 2 ) </li></ul>
  18. 18. Meeting Emissions Targets <ul><li>In the U.S. approximately 1.5 million new houses are built each year. </li></ul><ul><li>Improving the standards to Eco-homes “very good” could save 180,000T of CO 2 emissions each year </li></ul><ul><li>Changing 3,600 houses from brick & block to Tradical ® Hemcrete ® could give a saving of 180,000T every year and at least 3,600T each year </li></ul><ul><li>Building all 1.5 million houses with Tradical ® Hemcrete ® could save </li></ul><ul><li>More than 75 million tons EVERY YEAR </li></ul>
  19. 19. The Adnams Project
  20. 20. The Lime Technology Office
  21. 21. Better than Zero Carbon Building <ul><li>Combats Global Climate Change through Carbon Capture </li></ul><ul><ul><li>Wall mix Hemcrete ® captures 7 lbs CO 2 / ft 3 </li></ul></ul><ul><ul><li>1’- 0” thick walls capture 6 lbs CO 2 / ft 2 </li></ul></ul><ul><ul><li>1’-8” thick walls capture 11 lbs CO 2 / ft 2 </li></ul></ul><ul><li>Reduces Energy Consumption and therefore Cost </li></ul><ul><ul><li>1’- 0” thick walls exceed Part L requirements (U = 0.26) </li></ul></ul><ul><ul><li>1’- 8” thick walls exceed Part L requirements (U = 0.16) </li></ul></ul><ul><ul><li>Comparison of identical properties confirms lower energy use in Tradical ® Hemcrete ® homes </li></ul></ul><ul><li>Delivers Healthier, Comfortable Buildings </li></ul><ul><ul><li>Vapour permeability results in dry walls that resist mould/fungal growth and therefore reduces instance of mould/fungus spores </li></ul></ul><ul><ul><li>Complete absence of solvents in materials protects builders, occupants, our workforce and the environment </li></ul></ul>
  22. 22. The Haverhill Hemp Houses
  23. 23. Thermal Images 28 °F outside 68°F inside Images by permission of BRE masonry Hemp & Lime front back
  24. 24. Construction Costs <ul><li>Individual properties can achieve parity for wall construction costs with conventional building material construction </li></ul><ul><li>Better insulation, hygro-thermal and air-tightness properties allow savings in heating / cooling installations </li></ul><ul><li>Compatibility with MMC practices, high build speed and ease of modification will deliver short build time and lower prelims costs </li></ul><ul><li>Low density / light weight saves costs (transport, handling, temporary works, frame etc.) </li></ul><ul><li>1’- 0” thick walls* can be built for $23 - $28/ ft 2 </li></ul><ul><li>1’- 8” thick walls* can be built for $35 - $44/ ft 2 </li></ul><ul><ul><li>* Includes timber frame, sprayed or cast Tradical ® Hemcrete ® , lime render and lime plaster (Standard brick & block build cost range $19 - $28 / ft 2 ) </li></ul></ul>
  25. 25. Construction Practicalities <ul><li>Training tool box talk for manual application guidance </li></ul><ul><li>Sprayed application by approved contractors (SCA list) </li></ul><ul><li>Normal construction weather / temperature limitations apply </li></ul><ul><li>Shutter removal after 12 – 24 hours (typical) </li></ul><ul><li>Finishes application after 7 days (typical) </li></ul><ul><li>Occupation after 6 weeks from wall construction (target) </li></ul><ul><li>Monolithic characteristics reduce interface issues and therefore facilitates achieving high air-tightness performance </li></ul><ul><li>Packaged materials facilitate simple mix ratios </li></ul><ul><li>*Single 4 bedroom house walls typically 2,119 – 2,472 ft 3 </li></ul>
  26. 26. Shuttered Tradical ® Hemcrete ®
  27. 27. Sprayed Tradical ® Hemcrete ®
  28. 28. Approvals & Accreditations <ul><li>Construction insurance in France underwritten by AXA Insurance contract no. 250.887.55.87 </li></ul><ul><li>French Code of Practice - reviewed and approved by APAVE (French Quality Control for Construction) and validated by the “Fédération Française du Bâtiment/FFB”. </li></ul><ul><li>French Product Accreditation, valid for 2007, has been obtained by C2P (Commission Prévoyance Produit), by AQC (Agence Qualité Construction) and by CSTB and Insurance companies. </li></ul><ul><li>Construction insurance in UK – approved by Zurich Insurance and complies with Zurich Insurance low and zero carbon housing technical standard. </li></ul><ul><li>BBA Accreditation – at early application stage </li></ul><ul><li>NHBC approval – in early discussions </li></ul>
  29. 29. Other Tradical ® Products <ul><li>Tradical ® technology is also available and in development for the UK market to deliver high performance, bio-composite, insulation construction products for: </li></ul><ul><li>Lightweight floor insulation </li></ul><ul><li>Lightweight roof insulation </li></ul><ul><li>Existing walls retrofit insulating, decorative plasters & renders </li></ul><ul><li>Carbon neutral block walling </li></ul><ul><li>ModCell pre-cast structural panel system build </li></ul>
  30. 30. Renovation of Existing Buildings (Maison Diocésaine Chalons en Champagne / 2004)
  31. 31. Blocks in Development
  32. 32. Summary <ul><li>Tradical ® Hemcrete ® locks up carbon from CO 2 and offers the opportunity of better than zero carbon buildings NOW </li></ul><ul><li>Tradical ® Hemcrete ® is compatible with other natural, low embodied energy materials </li></ul><ul><li>Building all new houses in the UK using Tradical ® Hemcrete ® could save more than 9 million tons of CO 2 emissions every year </li></ul><ul><li>Millions more tons of CO 2 emissions could be saved every year if commercial, industrial and public buildings were also built using Tradical ® Hemcrete ® </li></ul><ul><li>More information is available on our website </li></ul><ul><li> </li></ul>
  33. 33. Thank you on behalf of all the partners