le isithuba intonga yefiberglass iku-3/8″(10mm) ububanzi, ubude bunokwenziwa, elinye icala lincam elibukhali ukuze kube lula ukuqhuba emhlabeni, esinye isiphelo sinekepusi okanye asinayo. i isithuba intonga yefiberglass  ilungele ucingo oluphathwayo lombane, kuba aluyi kugqwala, aluyi kubola kwaye aluyi kugqabhuka ebusika.