|
Practical Information |
Hemp Agronomy
1 Hectare = 2.5 Acres
1 Hectare will produce up to 10T of hemp (UK
average is 8T)
60% of the processed hemp crop is shiv
1T of shiv is approx. 50 bales
1 bale of Tradical® HF (hemp shiv) contains 200
litres when uncompressed
1 Hectare will produce 5 to 6T of shiv (250 to
300 bales)
1 Hectare will produce enough shiv to build a
small house
There are about 540,000 Ha of set aside in the
UK
Carbon Dioxide
1 Hectare of hemp will absorb up to 18T of CO2
as it grows (total crop - shiv, fi bre and dust)
The shiv from 1 hectare contains about 10 to
11T CO2
Tradical® Hemcrete® wall mix contains 108kg
CO2/m3
(Spray applied at a density of 330kg/m3)
Tradical® Hemcrete® wall mix contains around
150kg CO2/m3
(Shuttered and tamped at a density of
460kg/m3)
Tradical® Hemcrete® roof mix contains
155kg CO2/m3
Tradical® Hemcrete® wall mix contains
85kg CO2/m3
Walls of Houses
A small semi detached house of 48 m2 GFA
with 300 mm thick walls, contains 33 m3 of
Tradical® Hemcrete®
This is 165 bales of Tradical® HF and 7.25T of
Tradical® HB.
This will lock up 3.6T of CO2 in the walls
A small detached house of 52 m2 GFA with
300mm thick walls, contains 49 m3 of Tradical®
Hemcrete®
This is 245 bales of Tradical® HF and 10.8T of
Tradical® HB.
This will lock up 5.4T of CO2 in the walls
A larger detached house of 100 m2 GFA
with 500 mm thick walls, contains 120 m3 of
Tradical® Hemcrete®
This is 600 bales of Tradical® HF and 26.4T of
Tradical® HB.
This will lock up 13.2T of CO2 in the walls
Thermal Performance - U-Values
See Thermal Datasheet
300 mm wall gives 0.30 W/m2.K
400 mm wall gives 0.22 W/m2.K
500 mm wall gives 0.18 W/m2.K
Acoustic Performance
See 3c: "Acoustic" in the Technical and
Practical section.
|
 |
|
