Lub qhov rooj hluav taws kub yog lub qhov rooj uas tuaj yeem ua tau raws li qhov yuav tsum tau ua ntawm kev tiv thaiv hluav taws, kev ncaj ncees thiab thermal rwb thaiv tsev nyob rau qee lub sijhawm. Ntxiv nrog rau kev ua haujlwm ntawm lub qhov rooj zoo tib yam, cov qhov rooj hluav taws kuj muaj qhov ua haujlwm ntawm kev tiv thaiv kev sib kis ntawm hluav taws thiab kev sib kis ntawm cov pa taws.