01. Weight: 500 g/m;
02. Thickness: 0.65mm;
03. Length: 25m;
04. Width: 1m;
05. Weight for one role: 13kg;
06. Physical: specification;
07. Pull strength: +23 degrees;
08. Length: 9.7kn/m;
09. Crossway: 7.8kn/m;
10. Tear: strength;
11. Length: 170n;
12. Crossway: 152n;
13. Bend when: it's cold;
14. Top surface: 20 degrees;
15. Function:
a. Ventilation;
b. Waterproof;
c. Sound-insulation;
d. Skin resistant potential;
e. Uses wooden islet roof.