Izakhiwo zezindawo zangaphandle (njengezindawo zokupaka, izithombe eziqoshiwe, ucingo, amabhodi okubonisa, njll.) zibhekene nezimo ezinzima njengomoya, imvula, izinguquko zokushisa, njll. isikhathi eside, futhi ukuzinza nokuqina kwazo kubalulekile. Njengengxenye ebalulekile exhumanisa isakhiwo nesisekelo, uma i-anchor bolt ingakhethwanga kahle, ingabangela ukuthi indawo ithambe, ikhululeke noma iwele. Ama-anchor bolts afakwe i-hot-dip abe yisinqumo esifanele samaphrojekthi ezindawo zangaphandle ngenxa yamandla awo aphezulu, ukumelana nokugqwala kanye nezakhiwo zokulwa nokuguga. Lesi sihloko sizokwethula ngokuningiliziwe izimo zokusetshenziswa kwama-anchor bolts afakwe i-hot-dip anezincazelo ezahlukene ukukusiza ukhethe umkhiqizo ofanele futhi uqinisekise ukuphepha nokuzinza kwezindawo.