Lub qhov rooj ntoo hluav taws yog tsim los ntawm cov ntoo uas muaj hluav taws kub ua rau lub qhov rooj, lub qhov rooj nplooj ntoo thiab lub qhov rooj nplooj ntoo. Lub qhov rooj nplooj yog ntim nrog cov tsis muaj tshuaj lom, tsis muaj mob, txuag hluav taws xob thiab ib puag ncig-phooj ywg hluav taws kub thiab thermal rwb thaiv tsev cov ntaub ntawv, thiab tau nruab nrog cov khoom siv hluav taws xob tiv thaiv hluav taws. Ntoo fireproof qhov rooj muaj lub teeb yuag thiab hloov tau yooj yim qhib.