. ▁Also ▁unique ▁to ▁mod ular ▁construction ▁is ▁the ▁ability ▁to ▁simultaneously ▁construct ▁a ▁building ' s ▁flo ors , ▁walls , ▁ce il ings , ▁ra fter s , ▁and ▁roof s . ▁During ▁site - built ▁construction , ▁walls ▁cannot ▁be ▁set ▁until ▁flo ors ▁are ▁in ▁position , ▁and ▁ce il ings ▁and ▁ra fter s ▁cannot ▁be ▁added ▁until ▁walls ▁are ▁ere cted . ▁On ▁the ▁other ▁hand , ▁with ▁mod ular ▁construction , ▁walls , ▁flo ors , ▁ce il ings , ▁and ▁ra fter s ▁are ▁all ▁built ▁at ▁the ▁same ▁time , ▁and ▁then ▁brought ▁together ▁in ▁the ▁same ▁factory ▁to ▁form ▁a ▁building . ▁This ▁process ▁can ▁allow ▁mod ular ▁construction ▁times ▁of ▁half ▁that ▁of ▁conventional , ▁stick - built ▁construction . ▁Ind oor ▁construction . ▁Assembly ▁is ▁independent ▁of ▁weather , ▁which ▁can ▁increase ▁work ▁efficiency ▁and ▁avoid s ▁dam aged ▁building ▁material . ▁Ab ility ▁to ▁service ▁remote ▁locations . ▁Part icular ly ▁in ▁countries ▁in ▁which ▁potential ▁mark ets ▁may ▁be ▁located ▁far ▁from ▁industrial ▁cent ers , ▁such ▁as ▁Australia , ▁there ▁can ▁be ▁much ▁higher ▁costs ▁to ▁build ▁a ▁site - built ▁house ▁in ▁a ▁remote ▁area ▁or ▁an ▁area ▁experien cing ▁a ▁construction ▁bo om ▁such ▁as ▁min ing ▁towns . ▁Mod ular ▁buildings ▁are ▁also ▁benef icial ▁in ▁providing ▁medical ▁and ▁san it ary ▁facilities ▁where ▁time , ▁space , ▁and ▁money ▁are ▁an ▁issue . ▁Low ▁waste . ▁With ▁the ▁same ▁plans ▁being ▁constantly ▁built ,