. ▁The ▁inter - conne ctions ▁tie ▁the ▁individual ▁modules ▁together ▁to ▁form ▁the ▁overall ▁building ▁structure . ▁ ▁Mod ular ▁buildings , ▁also ▁called ▁pre fab ric ated ▁homes ▁or ▁precision ▁built ▁homes , ▁are ▁built ▁to ▁equal ▁or ▁higher ▁standards ▁as ▁tradition ally ▁built ▁homes . ▁The ▁building ▁method ▁is ▁referred ▁to ▁as ▁permanent ▁mod ular ▁construction . ▁ ▁Material ▁for ▁tradition ally ▁built ▁and ▁mod ular ▁homes ▁are ▁the ▁same . ▁Mod ular ▁homes ▁are ▁not ▁double w ides ▁or ▁mobile ▁homes . ▁First , ▁mod ular ▁homes ▁do ▁not ▁have ▁ax les ▁or ▁a ▁metal ▁frame , ▁meaning ▁that ▁they ▁are ▁typically ▁transport ed ▁on ▁flat - bed ▁tr uck s . ▁Mod ular ▁buildings ▁must ▁conform ▁to ▁all ▁relevant ▁local ▁building ▁codes , ▁while ▁double w ides ▁and ▁mobile ▁homes ▁have ▁metal ▁under ▁fr aming . ▁Double w ides ▁and ▁mobile ▁homes ▁made ▁in ▁the ▁United ▁States ▁are ▁required ▁to ▁conform ▁to ▁federal ▁codes ▁govern ed ▁by ▁U . S . ▁Department ▁of ▁H ous ing ▁and ▁Urban ▁Development . ▁ ▁Us es ▁▁ ▁Mod ular ▁buildings ▁may ▁be ▁used ▁for ▁long - term , ▁temporary ▁or ▁permanent ▁facilities , ▁such ▁as ▁construction ▁cam ps , ▁schools ▁and ▁class rooms , ▁civil ian ▁and ▁military ▁housing , ▁and ▁industrial ▁facilities . ▁Mod ular ▁buildings ▁are ▁used ▁in ▁remote ▁and ▁rural ▁areas ▁where ▁conventional ▁construction ▁may ▁not ▁be ▁reasonable ▁or ▁possible , ▁for ▁example , ▁the ▁Hal ley ▁VI ▁accommod ation ▁pod s ▁used ▁for ▁a ▁B AS ▁Ant