Ntxiv nrog rau kev faib tawm, lub qhov rooj iav tempered kuj tseem siv tau rau hauv siab partitions thiab iav partitions. Cov no tau muab faib rau hauv pem teb lub caij nplooj ntoos hlav qhov rooj thiab lub qhov rooj hinged. Sliding tempered iav qhov rooj yuav siv tau yog tias qhov chaw tso cai. Nyob rau hauv luv luv, txuam qhov tsim nyog muab faib qhov rooj raws li cov style thiab xav tau kev pab ntawm muab faib yog ib yam dab tsi uas yuav tsum tau xav txog thaum lub sij hawm tsim txheej txheem.
Cov qhov rooj muab faib yog siv ntau qhov chaw, uas yog ib qho ntawm cov laj thawj rau ntau hom kev faib qhov rooj. Piv txwv li, lawv tuaj yeem pom hauv tsev so high partitions, chaw ua haujlwm partitions, chav tso quav tso quav, iav partitions, system faib phab ntsa, thiab movable partitions. Nyob rau hauv luv luv, muab faib qhov rooj yog siv nyob rau hauv feem ntau qhov chaw uas muaj xws li cov kev xav tau ntawm kev tsim kho, kev npaj hauv nroog, cov khoom siv hauv tsev, thiab kev lag luam kho kom zoo nkauj.