Delta Membrane Systems has provided several solutions, including their PT meshed membrane for refurbishment works at a Grade II Listed Building. The Old Parsonage in Didsbury may well be one of the oldest buildings in South Manchester, with historical references dating back to 1650.

The Old Parsonage had dilapidated to a state of disrepair by 2013, with substantial external building detailing and roofing damage. Defects combined with a lack of occupancy lead to damp and fungus infested internal conditions which rendered the building unusable.

Delta Membrane Systems Limited teamed up with Select Interiors Limited of Manchester to devise an action plan and remedial specification which involved identifying and fixing all defects and lining the internal faces of the now long term damp, fungus and salt contaminated walls using Delta PT meshed membrane, all following a thorough de-contamination and preservative treatment programme.

Delta PT meshed cavity drainage membrane was used in conjunction with Koster Polysil TG500 as a salt retardant primer. The products selected for this project were sympathetic to the existing structure because the membrane is “mechanically fixed” using special sealed Delta PT plugs, as opposed to “fully bonding” with the existing structure (as would be the case with a typical salt retardant render), which would be irreversible and would key to/alter the structure forever.

This project exceeded English Heritage’s expectations, who were thrilled with the outcome. The results of this project provided for a much needed community hub which was achieved on plan and budget.