The Dynamic Buffer Zone (DBZ) is not a new concept for retrofitting problem buildings. The implementation of this approach was performed on an existing high humidity facility, with an exterior glass and aluminium curtainwall cladding, to eliminate the problem of icicles which formed on the exterior cladding. The icicles created a safety concern when they fell from the facade. Another case study will also be presented for the retrofit of the DBZ in a historic masonry building to eliminate condensation problems.