Txhua lub qhov rooj hluav taws yuav tsum ua kom haum nrog cov ntsaws ruaj ruaj..
Lawv tau tsim los nthuav tawm nyob rau hauv tshav kub, thiab sau qhov khoob ntawm lub qhov rooj qhov rooj thiab thav duab, yog li tiv thaiv cov pa taws thiab hluav taws rau lwm qhov chaw lossis cov compartments ntawm lub tsev. Cov khoom ntim acoustic kuj tseem yuav tsum muaj uas muaj lub luag haujlwm ntxiv ntawm kev tiv thaiv lub suab.
Intumescent ntsaws ruaj yuav muab tso rau hauv grooves machined hauv ob ntu thiab sab saum toj ntug ntawm lub qhov rooj thav duab. Thaum raug cua sov, intumbescent ntsaws rau ntau zaus lawv thawj qhov loj me, sib txuas ntawm qhov sib txawv ntawm lub qhov rooj thiab cov ncej thiab muaj cov khoom hluav taws.
Cov ntaub ntawv muaj nyob hauv cov ntsaws ruaj ruaj, (xws li sodium silicate lossis graphite), txawv ntawm cov tuam txhab foob, thiab nthuav ntawm cov nqi sib txawv. Nws yog ib qho tseem ceeb uas yuav tau siv tib lub ntsaws ruaj ib ncig ntawm lub qhov rooj, thaum txhim kho lossis hloov cov ntsaws ruaj ruaj.
