Wopanga amagawana nanu ntchito ya zida zosungunula phula, zomwe zimagwiritsidwa ntchito kwambiri kutentha ndi kusungunula phula kuti zikwaniritse zosowa za zomangamanga kapena kugwiritsa ntchito. Zida zamtunduwu nthawi zambiri zimagwiritsa ntchito kutentha kwamagetsi kapena kutentha kwa gasi, ndipo zimakhala ndi mphamvu zopulumutsa mphamvu, kuteteza chilengedwe ndi zina zotero. Kugwiritsa ntchito zida za asphalt melter kumatha kupititsa patsogolo ntchito yomanga, kuchepetsa kugwiritsa ntchito mphamvu, komanso kuwonetsetsa kuti zomangamanga zili bwino. Kuphatikiza apo, zida zamtunduwu zitha kugwiritsidwanso ntchito pakukonza misewu, kukonza misewu ndi magawo ena, ndipo zili ndi chiyembekezo chogwiritsa ntchito.

Zida zosungunula phula zili ndi zabwino izi:
1. Pogwiritsa ntchito ukadaulo wapamwamba wotenthetsera, imatha kusungunula phula mwachangu komanso moyenera ndikupulumutsa mphamvu.
2. Zidazi zimapangidwa ndi zipangizo ndi njira zomwe zimakhala zokhazikika komanso zodalirika ndipo zimatha kugwira ntchito mokhazikika kwa nthawi yaitali.
3. Zosavuta kugwiritsa ntchito: Zidazi zili ndi dongosolo lolamulira mwanzeru, lomwe ndi losavuta kugwiritsa ntchito, kusamalira ndi kusamalira.
4. Chitetezo ndi chitetezo cha chilengedwe: Zidazi zimagwiritsa ntchito luso lapamwamba la chitetezo cha chilengedwe, lomwe lingathe kuchepetsa kutulutsa mpweya wonyansa, madzi owonongeka ndi phokoso ndikuonetsetsa chitetezo cha ogwira ntchito.
5. Ntchito zambiri: Zidazi ndi zoyenera kwa mitundu yosiyanasiyana ya asphalt, kuphatikizapo phula losakaniza lotentha, phula losakaniza lozizira ndi phula losinthidwa, ndi zina zotero, ndipo zimakhala ndi ntchito zambiri.