Protected Properties, St Helier, Jersey
Approved Installer: Building Renovations Ltd
Client: Renoufs
 

  PROBLEM

Registered as buildings of local interest and protected under the Jersey Island Plan, the four properties at 1 & 2 Vine Street, St Helier, backed on to by those at 15 & 17 King Street, were all suffering from cracked, separated and unstable walls due to age and various alterations over the years.

The Vine Street buildings date back to 1725, are four storeys plus basements, one of which had not been opened for 30 years, while Kings Street are three stories high and built in the 1830’s. Constructed from a mix of granite, rubble and brick materials, they comprise mixed retail, commercial and residential areas.

The properties were to be combined as one unit, with most internal walls removed and structural integrity restored to others. Damaged and loose masonry had to be repaired and walls with failed bonds reconnected while retaining existing facades.

  SOLUTION

To stitch cracks, secure the masonry and restore integrity, over 950m of stainless steel HeliBars were bonded with HeliBond cementitious grout into mortar beds channelled out of the mixed construction materials.

Separated party walls were reconnected with some 1500 grouted CemTies, each 300mm long, installed into pre-drilled clearance holes and secured to the building facades. The buildings were fully stabilised but visually unaltered prior to refurbishment as a bank, offices and flats.