Uphahla, njengoko igama libonisa, libhekisa kuphahla olulungiselelwe imisebenzi yabasebenzi. Olu hlobo lophahla ludla ngokuba nomthamo ophezulu wokuthwala umthwalo kwaye lunokumelana nokuhamba kwabasebenzi, iindibano kunye nemisebenzi. Uyilo lwephahla luhlawula ingqwalasela engakumbi kwizinto ezingatyibilikiyo, ezingenamanzi kunye ne-thermal insulation properties ukuqinisekisa ukusetyenziswa okukhuselekileyo nokukhululekile. Ukongeza, uphahla lunokuthi luxhotyiswe ngokuluhlaza, iindawo zokuzonwabisa, njl., Ukuphucula amava okuphila. Kwizakhiwo zorhwebo, uphahla luhlala lusetyenziswa njengendawo yokutyela evulekileyo, iqonga lokubukela okanye indawo yesiganeko ukunyusa ukusebenza kunye nokukhanga kwesakhiwo.

Uphahla oluvulekileyo lusetyenziselwa ukukhusela isakhiwo sesakhiwo emoyeni kunye nemvula, kwaye ukuyila kwayo kugxile ekuchaseni amanzi, ukufudumala ukushisa kunye nokuqina. Uphahla ngokuqhelekileyo aluthathwa njengemfuno yemisebenzi yabasebenzi, ngoko ke umthamo wokuthwala umthwalo uphantsi, kwaye awufanelekanga ukuba abasebenzi bahambe. Olu hlobo lokuphahla luthambekele ngakumbi ekukhanyeni kunye nezinto ezinokumelana nemozulu, njengamacwecwe esinyithi, i-asphalt shingles kunye nokunye. Ukugcinwa kophahla oluvulekileyo kulula, ngokukodwa kugxininise kwingqibelelo yoluhlu olungenamanzi kunye nokuhlolwa rhoqo.

Oku kulandelayo yimiba emininzi ephambili yothelekiso phakathi kophahla oluhleliyo kunye nophahla olungahlali mntu:

Iimpawu Uphahla hayi uphahla

Umthamo ophezulu wokuthwala umthwalo, ulungele umsebenzi ophantsi wabasebenzi, awufanelekanga ukuhamba kwabasebenzi

Uyilo lugxininise ekungatyibilikiyo, ukungangeni kwamanzi, ukugquma ubushushu obungangeni manzi, ukugquma ubushushu, ukuqina

Ukhetho olubanzi lwemathiriyeli, lujolise ekuthuthuzeleni ukukhanya, izinto ezinokumelana nemozulu

Ubunzima bokugcinwa buphezulu, ukuhlolwa rhoqo kunye nokugcinwa kuphantsi, ngokukodwa kugxininise kuluhlu olungenamanzi

Xa ukhetha uhlobo lwephahla, kuyimfuneko ukuqwalasela ukusetyenziswa okuthe ngqo, uhlahlo lwabiwo-mali kunye nokugcinwa kwamandla esakhiwo. Nangona utyalo-mali lokuqala luphezulu, lunokubonelela abasebenzisi ngemisebenzi emininzi kunye namava; Uphahla ikakhulu lunoqoqosho kwaye lusebenza, kwaye lufanelekile kwizakhiwo ezineemfuno eziphantsi zomsebenzi wophahla.

Ingaba uphahla luhlala okanye alukho, ukuyila kunye nokwakhiwa kwayo kufuneka kulandele iikhowudi zokwakha ezifanelekileyo kunye nemigangatho yokuqinisekisa ukhuseleko kunye nokuqina kwesakhiwo. Kwizicelo ezisebenzayo, ukukhethwa kophahla kufuneka kuthathelwe ingqalelo iimeko zemozulu yendawo, isitayile soyilo kunye neemfuno zabasebenzisi bomntu ngamnye, ukuze kuphunyezwe eyona mpembelelo ibalaseleyo yokwakha kunye nokusetyenziswa kwamava.