Ipuleti elakhiwe linezici ezinhle kakhulu zokuvimbela umlilo, ukufakwa kwe-thermal nokuvikelwa kwemvelo, okunikeza ukukhetha okuhle kohlelo lokuvalelwa kwezakhiwo zezimboni.
Imodi yokuxhuma: iphaneli ixhunywe ku-purlin ngezikulufu zokuzithinta, kanti enye ingxenye iyi-lap joint.