I am rebuilding my pergola and all that remains of the previous structure is the 2x10 ledger board, which is bolted through the fascia into what I assume must be the brick wall behind.Taking the thing off will be hard - it's on there pretty good.
Assuming that the existing board itself is sound (so far it appears to be) is there a good reason not to keep it in place and use it to anchor a new (and actually lighter) structure? Would it be preferable to bolt a new board through the existing one?