ruction , ▁in ▁February ▁ 2 0 0 9 , ▁however , ▁the ▁nom ination ▁could ▁not ▁be ▁founded ▁due ▁to ▁the ▁construction , ▁leading ▁to ▁the ▁find ings ▁of ▁struct ural ▁problems ▁in ▁the ▁existing ▁building . ▁ ▁While ▁comple ting ▁these ▁works , ▁and ▁re - ro of ing ▁the ▁building ▁it ▁was ▁discovered ▁to ▁have ▁brit t le ▁concrete , ▁the ▁problem ▁was ▁caused ▁by ▁high ▁al um ina ▁c ement ▁or ▁Cal ci um ▁al uminate ▁c ements , ▁which ▁was ▁used ▁in ▁the ▁construction ▁of ▁buildings ▁in ▁the ▁Not ting ham shire ▁county ▁between ▁the ▁ 1 9 5 0 s ▁and ▁ 1 9 7 0 s . ▁Sub sequently , ▁the ▁ref urb ished ▁building ▁was ▁never ▁opened ▁to ▁students ▁and ▁the ▁entire ▁building ▁was ▁condem ned ▁for ▁use ▁due ▁to ▁its ▁inst ability . ▁Years ▁ 7 & 8 ▁were ▁moved ▁to ▁the ▁two ▁other ▁schools ▁in ▁the ▁feder ation ▁as ▁they ▁had ▁spare ▁capacity , ▁Years ▁ 9 - 1 3 ▁remained ▁in ▁the ▁safe ▁buildings ▁at ▁Br am c ote ▁Hills . ▁. ▁ ▁Following ▁a ▁Not ting ham shire ▁County ▁Council ▁Report ▁on ▁ 1 4 ▁May ▁ 2 0 0 9 ▁it ▁was ▁revealed ▁there ▁are ▁further ▁problems ▁with ▁the ▁' safe ' ▁buildings ▁currently ▁being ▁used . ▁The ▁Design ▁and ▁Technology ▁block ▁was ▁closed , ▁as ▁the ▁building ▁could ▁not ▁safely ▁support ▁the ▁concrete ▁roof . ▁The ▁work ▁to ▁rect ify ▁this ▁problem ▁was ▁completed ▁in ▁the ▁summer ▁of ▁