Thermal
SOTEXPRO HAS DESIGNED ALUMINISED FABRICS TO IMPROVE THERMAL INSULATION AND REDUCE ENERGY TRANSMISSION, AS PART OF NEW REGULATIONS (RT2012).
They offer optimum protection against light radiation and ensure good radiant energy control. Thermal and optical values are defined according to the European standard EN 14501
THERMAL INDICES ACCORDING TO STANDARD EN 14501
Solar transmittance (ST)
This is the amount of solar radiation that passes through the fabric. A low percentage indicates a good reduction of solar energy by the fabric.
Solar reflection (SR)
This is the amount of solar radiation reflected by the fabric. A high percentage indicates a good reflection of solar energy by the fabric.
Solar absorption (SA)
This is the amount of solar radiation absorbed by the fabric. A low percentage indicates weak absorption of solar energy by the fabric.
The sum of the 3 is equal to 100. ST + SR + SA = 100% of solar energy
Example for our product “Mirage 2”:
| MIRAGE 2 | Reflection | Absorption | Transmittance |
|---|---|---|---|
| Thermal value | Rs 58% | As 37% | Ts 5% |
| gtot | |
|---|---|
| Gv 0,61 (1) | GV 0,34 (2) |
| 37% | 26% |
The total solar factor, gtot, is the percentage of solar energy that will actually enter the room through the blind and window.
Sample tested according to standard BS EN14501 setting the calculation methods and measurements with reference to standard EN13363 and standard EN410.
(1) gv = 0.61 = solar factor of the reference glazing. Low-emissivity insulated double glazing, for which the thermal transmittance for the glazing alone is U = 1.2 W/m²k.
(2) gv = 0.34 = solar factor of the reference glazing. Low-emissivity double glazing with solar control, for which the thermal transmittance for the glazing alone is U = 1.1 W/m²k.
(3) gtot: Total solar factor. This is the solar energy that will actually enter the room through the glazing and blind.
Technical properties
The properties of thermal fabric :
thermal insulation
optimization of light radiation
ease of maintenance
Our thermal fabrics are recommended for professional areas, meeting rooms, offices, etc.
Our thermal fabrics are also non-flammable (M1 fire rating).
