Ilaphu lomthunzi lenziwa kwi-polyethylene ephothiweyo.Iguquguquka ngakumbi kunelaphu elilukiweyo lomthunzi.Isenokusetyenziswa njengeminatha yesikafula, isigqumathelo sendlu eluhlaza, isikhuseli somoya, ixhama kunye nesefu yeentaka, inethi yesichotho, iiveranda kunye nomthunzi wepatio.Iwaranti yangaphandle ingaba yi-7 ukuya kwi-10 iminyaka.