Kubalwa kwema rafters.

Kubalwa kwemasayizi e-rafter kanye nema-angle

Ucelwa kutsi ukhombise tilinganiso letidzingekako ngemamilimitha

X - bubanti bendlu
Y - kuphakama kweluphahla
C - usayizi longetulu
Z - ibanga kusuka emnceleni webhodi kuya ekucaleni kwekusika
B - Bubanti be-Rafter

kudlilisela

Ngaphandle kwetindvuku, luphahla alukwakhiwa.
Nge gable isakhiwo uphahla, kuyadingeka kubala imilinganiso rafters, engeli ukusika kanye grooves.
Loluhlelo lwekubalwa lwe-rafter lwaklanyelwe loku.
Kususelwa ebubanti bendlu, kuphakama kusuka ekucaleni kuya emgceni weluphahla kanye nebubanti be overhang, budze be rafters kanye nelibanga kuya e groove kubalwa.
Loluhlelo lutawuphindze ludvwebe umdvwebo we-rafters ngetilinganiso. Loku kutawuba lusito ikakhulukati kulabo labancuma kwenta ema-rafters ngetandla tabo.