1. Optical properties.
| PRODUCT/ SPECIFICATIONS | PMMA | PC | SCC – PC sun control clear |
| Light transmission | 92% clear 81% opal |
86% clear 50% white |
80% clear |
| Energy transmission “G” | 86% clear 87% opal |
82% clear 62% white |
63% clear |
Shading coefficient: SC = G / 0,87
Light transmissions for combinations of double or triple skins are derived from the values above.
Example: Triple skin PC clear + PMMA clear + PMMA opal:
L.T. = 86% x 92% x 81% = 64%.
2. Thermal properties – Thermal conductivity (U σε W/m2.K).
Single skin dome |
UH = 6,4 | UV = 5,4 | |
Double skin dome |
UH = 3,0 | UV = 2,7 | |
Triple skin dome |
UH = 2,0 | UV = 1,8 | |
Quadruple skin dome |
UH = 1,5 | UV = 1,4 | |
Multi wall PC 25 mm |
UH = 1,4 | UV = 1,4 | |
Multi wall PC 32 mm |
UH = 1,3 | UV = 1,2 | |
PVC upstands 6 cm flange, h=15 cm |
U = 2,2 | ||
PVC upstands 15 cm flange, h=15 cm with internal insulation |
U = 1,5 | ||
PVC upstands 15 cm flange, h=15 cm without internal insulation |
U = 2,5 | ||
PVC upstands 15 cm flange, h=30 cm with internal insulation |
U = 1,1 | ||
PVC upstands 15 cm flange, h=30 cm without internal insulation |
U = 2,1 | ||
Straight PVC upstands 12,5 cm flange, h=16 cm with internal insulation |
U = 0,7 | ||
Straight PVC upstands 12,5 cm flange, h=16 cm without internal insulation |
U = 1,8 | ||
GRP upstands 15 cm flange, h=15,30,50cm, with internal insulation |
U = 0,95 | ||
GRP upstands 8 cm flange, h=15 cm with internal insulation |
U = 1,6 |
3. Fire resistance.
According to EN 13501
According to DIN 4102 B2 for PMMA and PC (older).
According to NEN 3883 categ.4 (PMMA) and 2 (PC) (older)
4. Mechanical properties.
| PC | PMMA | |
| Impact strength, Charpy unnotched | Non Breakable | 11 |
| Impact strength, Charpy notched | >40 kj/m2 | 2 |
Other specifications on request.
Ελληνικά