HOMIE akara ?h?a aka n'ah? nwere ?t?t? uru:
* ?r? d? elu na nchekwa ike: A na-ebughar? b?ket na-etip?a ihe nke olulu mmiri, nke d? mfe ma d? mma iji r?? ?r?, ngwa ngwa na nke ?ma, na-echekwa ike.
* Ike nhazi siri ike: b?ket na-etip?a ihe nwere ike ijikwa ihe siri ike d? iche iche, d? ka ihe mkpofu ihe owuwu, ihe, okwute, masonry, wdg, nwere mmet?ta d? mma na-etip?a na ikike nhazi siri ike.
* Nchekwa ma b?r? nke a p?r? ?dabere na ya: A na-eji ígwè d? elu mee b?ket na-etip?a ihe nd? na-egwup?ta ihe, b?? nke na-agagh? eyi uwe, na-eguzogide corrosion, na nr?gide, na-eme ka ? d? nchebe ma b?r? nke a p?r? ?dabere na ya iji mee ihe.
* Oke ngwa nke ukwuu: b?ket na-etip?a ihe d? mma maka ebe a na-ewu ihe owuwu d? iche iche, ebe a na-akwatu ihe, ebe a na-egwup?ta ihe na oge nd? ?z?, ma nwee ike gboo mkpa ?r? d? iche iche.
