Mapepala athu a Twin-Wall Polycarbonate amapezeka mumitundu ndi makulidwe osiyanasiyana, opangidwa kuti akwaniritse zosowa za polojekiti. Njira yomveka bwino ndiyodziwikiratu chifukwa cha kufalikira kwake kwapamwamba komanso kumveka bwino, kukulitsa kuyatsa kwachilengedwe. Zogwiritsidwa ntchito mosiyanasiyana, mapepalawa ndi abwino kugwiritsa ntchito zosiyanasiyana, kuphatikizapo madenga oundana, zotchingira nyumba, denga la pergola ndi carport, komanso magawo amkati, zowonetsera, ndi zikwangwani.