Talosaga:
Talafeagai mo le felauaiga tiute mamafa, abrasion maualuga ma le tele o mea mamafa i totonu o se siosiomaga taua tau alamanuia.
Uiga:
Fa'aletino maualuga o le pa'u ufiufi
Anti-a'afiaga ma avulsion tetee
Faʻapipiʻi maualuga, faʻalautele laʻititi
Osone/ ultraviolet radiation ma le pala
| Ituaiga | maualuga abrasion tetee |
| Malosi fa'aumiumi atoa mafiafia (KN/m) | 800-3500 |
| Faaumiumi faaumiumi | <=1.2% |
| mafiafia pa'u (mm) | pito i luga | 6~10 |
| pito i lalo | 1.5-4.5 |
| Fa'asalaina pa'u | Ituaiga 1 | <=0.15cm3/1.61KM |
| Ituaiga 2 | <=0.30cm3/1.61KM |
| Fa'apipi'i (N/mm) | >=12 |
| Lautele (mm) | 300-2000 |
| Umi/Taavale (m) | <=200 |
| Tulaga | AS 1332, BS490,GB7984 |
