izing ▁the ▁amount ▁of ▁energy ▁exp ended ▁to ▁create ▁a ▁building ▁to ▁meet ▁the ▁new ▁need . ▁In ▁ess ence , ▁the ▁entire ▁building ▁can ▁be ▁rec yc led ▁in ▁some ▁cases . ▁Qu ality . ▁Com bin ing ▁traditional ▁building ▁techniques , ▁quality ▁manufact uring ▁and ▁third - party ▁ag encies ▁who ▁offer ▁random ▁ins pe ctions , ▁testing , ▁and ▁cert ification ▁services ▁for ▁quality ▁control , ▁commercial ▁mod ular ▁buildings ▁are ▁built ▁in ▁strict ▁accord ance ▁with ▁appropriate ▁local , ▁state , ▁and ▁national ▁reg ulations ▁and ▁codes . ▁Due ▁to ▁the ▁need ▁to ▁transport ▁modules ▁to ▁the ▁final ▁site , ▁each ▁module ▁must ▁be ▁built ▁to ▁independently ▁with stand ▁travel ▁and ▁installation ▁requirements . ▁Thus ▁the ▁final ▁module - to - module ▁assembly ▁of ▁independently ▁dur able ▁components ▁can ▁yield ▁a ▁final ▁product ▁that ▁is ▁more ▁dur able ▁than ▁site - built ▁structures . ▁Mod ular ▁buildings ▁often ▁use ▁Struct ural ▁Ins ulated ▁Pan els ▁( SI P s ) ▁in ▁construction , ▁which ▁offer ▁a ▁range ▁of ▁advantages ▁over ▁traditional ▁building ▁materials . ▁S IP s ▁pan els ▁are ▁a ▁light ▁yet ▁dur able ▁combination ▁of ▁panel ▁board ▁and ▁either ▁closed - cell ▁poly ure th ane ▁( PU ) ▁or ▁expanded ▁pol yst y rene ▁( E PS ) ▁ins ulating ▁fo am . ▁They ▁are ▁air - t ight , ▁and ▁as ▁such ▁provide ▁excellent ▁thermal ▁performance . ▁They ▁also ▁offer ▁superior ▁d amp ▁and ▁cold ▁resistance ▁when ▁compared ▁to ▁tim ber ▁and ▁other ▁materials ,