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Natural Hydraulic Lime

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Home / Archives for Hemp Building

Natural Hydraulic Lime on Hempcrete

February 3, 2015

At TransMineral USA, we have recently been following a hempcrete building project from Beate Kirmse and her husband, Bern Galvin. The structure, in Rolling Hills, California, is the first permitted hemp building in California. The walls are formed from hempcrete, which is the result of a mixture of lime and hemp. Since hemp is not allowed to be industrially grown in the United States, it has been near impossible to successfully get a permit to use it in a structure. According to Hemp Technologies, a supplier of hemp hurds, hempcrete has a superior R-value to other green building options. The thickness of hempcrete can be adjusted to meet the thermal requirements of the structure’s climate. And, among numerous other advantages, hempcrete is the perfect substrate for earth and lime plasters, such as natural hydraulic lime.

For the Rolling Hills project, Beate Krimse called our office and discussed the project. We agreed that using NHL 3.5 and EcoMortar® F-2 would be a good combination for the exterior walls. NHL 3.5 was used for the scratch and brown coats, while the EcoMortar® was applied as the exterior finish coat. Find more details on Beate’s post, Breathable Lime Finish.

To follow the couple’s project, please visit their website: http://www.beatekirmse.com

Applications

  • Restoration
    • Plaster or Stucco on Wooden Lath
    • Plaster or Stucco on Metal Lath
    • Plaster or Stucco on Masonry – Block, Brick, Stone
    • Plaster or Stucco on Adobe, Cob
    • Masonry – Pointing & Repointing
    • Masonry – Injection Grouting
    • Masonry – Stone Repair (Lithomex)
    • Lime Paint
  • New Build Sustainable Construction
    • Plaster or Stucco on Wooden Lath
    • Plaster or Stucco on Metal Lath
    • Plaster or Stucco on Masonry – Block, Brick, Stone
    • Plaster or Stucco on Adobe, Cob, Earth Plaster
    • Plaster or Stucco on Strawbale
    • Plaster or Stucco on Concrete, Cement
    • Masonry – Cladding
    • Masonry – Bedding & Grouting
    • Flooring
    • Tile Setting
    • Interior Finishes
    • Lime Paint
  • Hemp Construction

About TransMineral

TransMineral, USA was established in 1997 by Michel Couvreux, an architect in France and the U.S. His familiarity with traditional “old world” building techniques and materials have been instrumental in their revitalization in the U.S. along with his stewardship of implanting Saint Astier® Natural Hydraulic Lime in the North American building sector.

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