Uphahla Hook
1. Yomelele: Yenzelwe ukumelana nemimoya ephezulu kunye nemithwalo enzima, iqinisekisa ukuba inkqubo yelanga ihlala yomelele kwiimeko zemozulu ezinzima.
2. Ukuhambelana: Ilungele uluhlu olubanzi lweentlobo zephahla, kubandakanywa i-tile, isinyithi kunye nophahla lwe-asphalt, ukulungelelanisa ngokufanelekileyo kwiimfuno ezahlukeneyo zokufakela.
3. Izinto eziZinzileyo: Ngokuqhelekileyo zenziwe nge-alloy aluminium ephezulu okanye insimbi engenasici ukwenzela ukuxhathisa ukugqwala kunye nokuqina kwiindawo ezahlukeneyo zemozulu.
4. Ukufakela ngokulula: Inkqubo yokufakela ilula kwaye iyasebenza, kwaye uninzi loyilo alufuni izixhobo ezikhethekileyo okanye ukuguqulwa kwesakhiwo sophahla, ukunciphisa ixesha lokwakha.
5. Uyilo olungangeni manzi: Uxhotyiswe ngeegaskets ezingenamanzi ukukhusela amanzi ekungeneni uphahla kunye nokukhusela uphahla kumonakalo.