Projects included the design and construction of a new waterproof membrane to cover the existing bonded roof membranes.
This was a delicate undertaking as throughout each project the staff were working over ‘live’ reservoirs and hence no debris could be dislodged from carrying out the work.
No equipment could be used whilst working, feet and wheels of the wheelbarrows were all clad in thick padding to eliminate stress on the surfaces. The work was carried out over ‘live’ tanks which remained in service throughout. An ‘intelligent’ type of membrane was proposed, together with a continuous remote alarm system.
The monitoring system allowed the tanks to be tested at any time during and after Works were completed.
Initially there were 3 sites that required the new waterproof membrane system, Woolton (Liverpool), Wrightington (Wigan) and Ashton in Makerfield (Wigan) following which it was Gorse Hill reservoir, Wallasey.