1. Usayizi: Khetha usayizi wekhethini lomnyango ofanele ngokusekelwe esikhaleni lapho izofakwa khona, uqinisekise ukuthi inikeza ukwahlukanisa okusebenzayo kanye nokufakwa kwe-insulation.
2. Ukubonisa ngale: Khetha ileveli efanele yokubonisa ngale ukuze ugcine ubumfihlo ngenkathi uvumela inani elithile lokukhanya ukuthi lidlule.
3. Ikhwalithi Nentengo: Lapho uthenga, cabangela kokubili ikhwalithi kanye nenani, ukhetha inketho ebiza kakhulu-esebenza ngempumelelo.
Amakhethini eminyango ye-Fiberglass, anamandla awo aphezulu, ukumelana nokugqwala, nokumelana nomlilo okuhle kakhulu, abe yisinqumo esisha ezindlini zanamuhla. Lapho bekhetha ikhethini lomnyango, abathengi kufanele bacabangele usayizi ofanele, ukukhanya, kanye nezindleko-ezisebenza kahle ngokusekelwe ezidingweni zabo kanye nohlelo oluthile lokusebenza. Ngokuthuthuka okuqhubekayo kobuchwepheshe, amakhethini eminyango ye-fiberglass kulindeleke ukuthi abonise ukusebenza kwawo okuphezulu ezindaweni eziningi, alethe ukunethezeka okukhulu ezimpilweni zabantu.
