The use of hemp in the Dutch buildingsector€¦ · Hemp buildings in the Netherlands Hemp building...
Transcript of The use of hemp in the Dutch buildingsector€¦ · Hemp buildings in the Netherlands Hemp building...
The use of hemp in the Dutch buildingsector... ...is growing fast, the first projects are promising!
Hemp building in the Netherlands IHBA, Oktober 2016
Sissy Verspeek
The use of hemp in the Dutch buildingsector......is growing fast, the first projects are promising!
Hemp building in the Netherlands IHBA, Oktober 2016
Sissy Verspeek
A little something about myself:
Specialist in biobased and natural building materials
LCA practitioner
Ecological materials, CAPEM, NMD
Agrodome, biobased building materials
Rules and regulations
Up scaling
The Developments and Solutions in the Hemp Building Market in the Netherlands
Hemp building in the Netherlands IHBA, Oktober 2016
Family house with hemp-crete in Nistelrode
Eco village with hemp-crete in Boekel
Bare build with hempcrete blocks in Stedum
The Green Deal Natural Fibers
What’s next?
Questions
Hemp buildings in the Netherlands
Hemp building in the Netherlands IHBA, Oktober 2016
Residential house, Nistelrode
Hemp buildings in the Netherlands
Hemp building in the Netherlands IHBA, Oktober 2016
Residential house, Nistelrode
It’s new building project. The hemp-crete insulation was constructed in situ.
Hydrate lime was used for this composite
Formwork was attached to the timber frame
construction
Hemp buildings in the Netherlands
Hemp building in the Netherlands IHBA, Oktober 2016
Residential house, Nistelrode
Low radiation building The floor was made with rammed concrete, bamboo
reinforcement.
Lava granules are used to insulate the floor.
Hemp buildings in the Netherlands
Hemp building in the Netherlands IHBA, Oktober 2016
Residential house, Nistelrode
38 cm Hemp-lime insulation for Rc 6,5 m2K/W
Inside and outside finishes is lime plaster
Hemp buildings in the Netherlands
Hemp building in the Netherlands IHBA, Oktober 2016
Residential house, Nistelrode
Hemp-lime mix used by the Dutch Hemp-
lime association:
Hemp wood, about 140 liters (±90%)
Hydrate lime, about 14 liters (±10%)
Additives, minerals, as pure and clean
as possible (±1%)
Water, about 30 liters
As local as possible extracted
ingredients
Pure, clean hydrate lime has a better
effect on the inner climate and the
hygroscopic ability of the hemp cells,
compare to hydraulic lime
Hemp buildings in the Netherlands
Hemp building in the Netherlands IHBA, Oktober 2016
A small ecovillage of 30 houses in Boekel
Hemp buildings in the Netherlands
Hemp building in the Netherlands IHBA, Oktober 2016
A small ecovillage of 30 houses in Boekel
Start of the build in the summer of 2017
If funding for the project succeeds
Social rent level
Residents has organized themselves in a housing
corporation.
They will rent individually from their corporation
Hemp buildings in the Netherlands
Hemp building in the Netherlands IHBA, Oktober 2016
A small ecovillage of 30 houses in Boekel
37 cm of hemp-crete insulation will be applied in de
walls, in situ.
They will use hydrate lime as binder
Rc value of the walls will be 6.4 m2K/W
The roof will be insulated with hemp fibre batts
Hemp buildings in the Netherlands
Hemp building in the Netherlands IHBA, Oktober 2016
Barn extension to the Care farm, Stedum
Hemp buildings in the Netherlands
Hemp building in the Netherlands IHBA, Oktober 2016
Barn extension to the Care farm, Stedum
Drawings of the design of the barn together with the existing farm house Two spaces where build covered and connected with one roof.
Hemp buildings in the Netherlands
Hemp building in the Netherlands IHBA, Oktober 2016
Barn extension to the Care farm, Stedum
For the construction they chose to work with a ‘fixed knot’
The wall are build with Hemp-crete blocks form IsoHemp on the outside of the
construction.
Hemp buildings in the Netherlands
Hemp building in the Netherlands IHBA, Oktober 2016
Barn extension to the Care farm, Stedum
Hemp-crete was chosen as building material to create a good climate in the
barn for the food storage
This project was funded for the construction because of the innovative origin
and being realised with a lot of volunteers.
Green Deal Natural Fibers
Hemp building in the Netherlands
IHBA, Oktober 2016
Participants Green Deal Natural Fibres
Green Deal Natural Fibers
Hemp building in the Netherlands
IHBA, Oktober 2016
Value Pyramid Hemp
Goal is to optimize the use of Hemp (and Flax)
Animal stock
Textiles
Building Materials, Biocomposites
Building Materials, Blocks
Green Deal Natural Fibers
Hemp building in the Netherlands
IHBA, Oktober 2016
Demonstration project: Rondeel stables
Demonstration project: Rondeel stablesStables designed for the wellbeing of the chickens.Looking for solutions in the building materials, hemp-based
What’s next?
Hemp building in the Netherlands IHBA, Oktober 2016
Hemp-lime renovation and new build, Arnhem
New office building at the same industry park
Renovation project of an old industrial building? In combination with an Interreg project about biobased renovation
A few questions to you:
Hemp building in the Netherlands IHBA, Oktober 2016
How is the connection of the lime on the hemp in as spray mix, compare to a mix for in situ?
Settlement of the hemp-lime in situ, what are yourexperiences? Related to hight, period, composition?
More Information
www.agrodome.nl
www.kalkhennepbouwnederland.nl
Hemp building in the Netherlands IHBA, Oktober 2016