Ditlhahlo tša go hloma dithaele tša resin le ditshepedišo .

Purlins ka entsoe ka liphaephe tsa sekwere (60 × 40 × 3mm), dikarolo tšepe (100 × 50 × 20 × 3mm), kapa preservative lehong lisekoere (60 × 40mm).
Purlins e swanetše go arolwa ka sekgoba sa 660mm gomme e beakantšwe go tšwa fase go ya godimo.
Ge o tsenya thaele ye kgolo, latela tlhahlo ya phefo ya lefelong leo gomme o e tsenye ka tsela ya go bušetša morago. Overlap a tile leqhubu le kenya mahlakoreng a mabeli ka nako e le nngwe.
Ge o tsenya thaele ya molala, kgaola karolo ya thaele ya mathomo ya molala pele o tsenya.
Go swana magareng ga dithaele tša molala le tša diagonale go swanetše go segwa ka go lekana. Ka morago ga ge dithaele tša molala le tša diagonale di tsentšwe, tsenya thaele ya tee.
The fixings ke disebediswa tse khethehileng. Ge o lokiša, thoma ka go phula lešoba ka sedirišwa sa go phunya sa mohlagase. Bophara bja lešoba bo swanetše go ba 2mm bjo bogolo go feta sekurufu sa sekgoketšane.
Self-Dikurufu tša go kgotla ka bophara bja 6.3mm di a kgothaletšwa.