Product Information
Thermo-Hemp Provides Effective Vapour Permeability Giving
You A Naturally Healthy Indoor Living Atmosphere Because Thermo-Hemp has naturally excellent diffusion properties, the automatic regulation of moisture can be achieved. This in turn provides the occupant with a naturally healthy indoor living atmosphere. As the fibres in Thermo-Hemp do not contain protein there is no requirement for the treatment of the insulation material for moths or beetles.
Thermo-Hemp Insulation Helps Manage Summer Heat
Oppressive warmth entering the internal structure by summer sunshine is stored by Thermo-Hemp so that it can be given off again when external conditions become cooler. Only a sufficient amount of heat is allowed to pass through to the internal structure ensuring a comfortable internal living atmosphere.
Temperature Amplitude Damping v
The temperature amplitude damping v can be defined as how the temperature difference of the outside air (mainly during the summer period), can be dampened until it reaches the inside of the building. In this case, little difference in temperature & heat permeation delay is required.
Phase Deceleration (PV) h
The value for phase deceleration is determined by the time difference between the temperature peak outside & the temperature peak inside. This value is measured in hours. The phase deceleration can be determined by the amount the high temperatures from the outside can be delayed, so that the permeation of energy to the inside will be effective during the cooler night.
| Testing in conformance with | Unit | Test result | |
| Type of application | DIN 18165 | W + WL | |
| Fire-resisting behaviour Building material category |
DIN 4102 |
B2 |
|
| Thermal conductivity - characteristic value - Measured value (Admission for WLG 040 has been applied for; proof furnished by examination institute) |
DIN 4108 DIN EN 12667 |
W /m x k W /m x k |
0,045 WLG 045 0,037 |
| Water vapour diffusion Resistance co-efficient |
DIN 52615 |
µ |
1 / 2 |
| Tensile strength | DIN 18165 | N / mm2 | 0,180 |
| Bulk density | kg / m3 | 24 - 40kg / m3 | |
| Sorption Moisture | DIN 52620 | 7% - 18% | |
| Mould fungus test | Based on DIN IEC 68 |
Best Grade 0 | |
| Moth and beetle test | EMPA | Not necessary for hemp | |
| Valued degree of noise | DIN EN ISO 354 | As per ISO 11654 at 160mm | α = 1,00 |
A phase deceleration = 7.1h & a temperature amplitude damping v = 7.14* ha been calculated by the Fraunhofer Institute for Construction Physics in Stuttgart, Germany, for the following roof construction:
Roof cladding, battens 30mm, counter-battens 30mm, solitex PLUS Breathable Felt, Thermo-Hemp 160mm, DB+ Vapour Check, 24mm horizontal battens, plasterboard 12.5mm.
Technical Data
Thermo-Hemp - Sizes & Dimensions Available
Mat Formats: 0.580m x 1.20m and 0.375m x 1.20m
Mat Thicknesses: 100mm, 140mm
Roll Formats: Width & Length: 0.375 x 6m, 0.375 x 8m
Roll Thicknesses: 40mm, 80mm
*The results for both Phase Deceleration & Amplitude Damping are not exact values, but they are comparative values for other constructions