▁roof ▁to ▁give ▁a ▁' li ber al ▁con cess ion ' ▁to ▁the ▁neighb ours ' ▁' right ▁to ▁light '. ▁ ▁Architecture ▁ ▁Ex terior ▁The ▁library ▁was ▁built ▁on ▁a ▁rect angular ▁plan ▁and ▁subsequent ▁extensions ▁are ▁to ▁the ▁rear . ▁It ▁was ▁designed ▁to ▁res emble ▁a ▁church ▁in ▁a ▁decor ated ▁ne o - G oth ic ▁style ▁with ▁Arts ▁and ▁C raft s ▁details . ▁It ▁is ▁constructed ▁of ▁C umb rian ▁sand stone , ▁the ▁interior ▁a ▁del ic ately ▁sh aded ▁' Sh awk ' ▁stone ▁( from ▁Dal ston , ▁varying ▁in ▁colour ▁between ▁sand ▁and ▁a ▁range ▁of ▁p inks ) ▁and ▁the ▁exterior , ▁dark ▁red ▁Barb ary ▁stone ▁from ▁Pen r ith . ▁built ▁around ▁an ▁internal ▁steel ▁fr amed ▁structure ▁and ▁brick ▁arch ed ▁flo oring . ▁The ▁red ▁' Bar b ary ▁plain ' ▁sand stone , ▁which ▁Champ ne ys ▁believed ▁' had ▁every ▁chance ▁of ▁prov ing ▁dur able ' ▁for ▁the ▁exterior , ▁was ▁an ▁unusual ▁choice ▁in ▁late ▁Victor ian ▁Manchester . ▁It ▁proved ▁relatively ▁successful , ▁as ▁an ▁ins pection ▁by ▁Champ ne ys ▁in ▁ 1 9 0 0 ▁revealed ▁little ▁soft ening ▁by ▁the ▁' effect s ▁of ▁an ▁atmosphere ▁somewhat ▁charged ▁with ▁chemical s ' ▁although , ▁by ▁ 1 9 0 9 ▁some ▁rep airs ▁were ▁needed . ▁ ▁The ▁library ▁has ▁a ▁crypt ▁above ▁which ▁the ▁building ▁has ▁two ▁une qual ▁store ys ▁giving ▁the ▁impression ▁of ▁three .