We undertake a number of projects where the existing facade is retained while the new structural frame is constructed behind. We have experience in providing a variety of solutions including sequential method where permanent structure is installed early to retain the facade. This solution is more suited for discrete situations but can easily be adopted for small and large scale projects in sensitive residential areas.
On the other occasions we have specified large raking shores to retain the existing structure. This form of construction maybe more suited for sites where speed of construction and maximum open working space are priorities.