Terratermal Star is an underfloor heating panel designed for spaces with minimum size and height standards, and larger compressive loads. Laying is easier due to a unique edge design. Plug design supports tubes with a diameter of 14 – 16 mm with 50mm spacing. It is installed under cement screed, supporting a load up to 3,000 kg/m2.
DOWNLOAD Terratermal Comfort (technical specifications)

Terratermal Star | |||||
Properties | Dimensions | ||||
40 | 50 | ||||
Insulating base thickness [mm] | 19 | 29 | |||
Knob height [mm] | 21 | 21 | |||
Total panel thickness [mm] | 40 | 50 | |||
Average effective calculated thickness EN 1264-3 DD [mm] | 25 | 35 | |||
Panels in a single packaging [pcs] | 18 | 12 | |||
Total surface area of the panels in a single packaging [m²] | 12,60 | 8,40 | |||
Type of packaging | Nylon | Nylon | |||
Volume [m3] | 0,415 | 0,403 | |||
Knob spacing [mm] | 50 | 50 | |||
Pipe diameter [mm] | 14-16 | 14-16 | |||
Panel size (used) [mm] | 1000 x 700 | 1000 x 700 | |||
Panel size (total) [mm] | 1000 x 700 | 1000 x 700 | |||
Panel area [m²] | 0,70 | 0,70 | |||
Physical Characteristics | |||||
Properties | Standard | Type | Terratermal Star | Standard codes | |
EPS | 40 | 50 | |||
Thermal resistance on average effective thickness Rλ, ins [m2K/W] | EN 1264-3:09 | 150 | 0,45 | 0,45 | – |
Thermal Conductivity λD [W/mK] | EN 13163:13 (EN 12667) | 150 | 0,034 | 0,034 | – |
Reaction to fire | EN ISO 11925-2:10+ EC1:11 | 150 | EURORAZRED E EN 13501:11 | E | |
Compressive strength at 10% deformation σ10 [KPa] | EN 826:13 | 150 | 150 | CS(10)150 | |
Long-term water absorption Wlt [%] | EN 12087:13 | 150 | 0,5 | WL(T)0,5 | |
Dimensional thickness tolerance dN [mm] | EN 823:13 | 150 | ± 2 | T(2) | |
Flatness | EN 825 | 150 | ± 10 | P(10) | |
Resistance to the diffusion of water vapor (EPS panel) μ [num] | EN 12086:13 | 150 | 30-70 | Z30-70 | |
Resistance to the diffusion of water vapor (HIPS foil) (150 μm) μ [num] | EN 12086:13 | HIPS | 10.000 | === | |
EPS-EN 13163-L(3)-W(3)-T(2)-S(5)-P(10)-CS(10)150-DS(N)5-WL(1) |