Qhov rooj hluav taws kub hluav taws yog lub qhov rooj hnyav heev ua los ntawm cov ntaub ntawv zoo li hlau lossis gypsum. Nws lub hom phiaj tseem ceeb yog los tuav cov pa taws thiab muaj hluav taws. Lub sij hawm hluav taws kub txhais tau hais tias lub qhov rooj, thaum ntsia kom zoo, tsis tas yuav tsum tau ua kom yuam kev nyob rau lub sijhawm hluav taws hauv nruab nrab. Lub sij hawm ntsuas sib txawv sib txawv thiab qee cov kev ntsuas tus txheej txheem suav nrog 20-90}}}}}}}} Nyob ntawm cov tuam txhab me me lossis cov chaw lis haujlwm tseemfwv yuav txiav txim kev ntsuas hluav taws.
Qee lub tsev lossis cov haujlwm hloov kho tej zaum yuav xav tau lub qhov rooj raj nplaim hluav taws. Lawv feem ntau tau nruab rau hauv cov tsev pej xeem, hauv chaw ua haujlwm thiab hauv cov chaw zoo li dormitories. Lwm zaus siv ntawm cov qhov rooj no yog hauv cov ntaiv tawm. Qee lub sij hawm ib lub chaw nyob yuav tsum muaj hluav taws kub lub qhov rooj, tab sis qhov no tsis muaj tsawg dua. Qhov rooj rau hauv tsev tuaj yeem pom, tab sis yog tias lawv tsis tau nruab thiab siv kom raug lawv yuav tsis ua haujlwm.
Ib yam uas ua rau lub qhov rooj hluav taws kub tsis muaj txiaj ntsig yog txhawb nws qhib. Yog hais tias lub qhov rooj tsis kaw, nws tsis tuaj yeem tuav cov pa taws lossis muaj hluav taws. Hauv cov vaj tse loj muaj ob peb txoj hauv kev los daws qhov no. Qhov rooj yuav muaj ib hom tsis siv neeg yog kuaj tau hluav taws. Txoj kev no cov neeg tuaj yeem ua kom lub qhov rooj qhib feem ntau. Lwm lub qhov rooj tsuas xav tau ceev thiab ntau lub tibziv ze tom qab lawv tau qhib lawm.
