Icwecwe elibunjiweyo lineempawu ezibalaseleyo zokuthintela umlilo, ukugqunywa kwe-thermal kunye nokukhuselwa kwendalo, okubonelela ngokufanelekileyo kwinkqubo yokuvalwa kwezakhiwo zoshishino.
Imowudi yoqhagamshelo: iphaneli iqhagamshelwe kwi-purlin ngokuzicofa izikrufu, kwaye enye inxalenye yilap joint.