Stonbury are immensely proud to be supporting our clients across the UK at such a crucial time and have been designated as 'key workers' by DEFRA and the UK water utility companies. Our teams are working tirelessly to help secure and maintain drinking water supplies, ensuring clean and safe drinking water is provided without interruption to critical services such as our hospitals as well as the general public. Now more than ever, the safety and wellbeing of our staff is of the utmost importance and we have adapted our safe working practices to ensure social distancing precautions are in place and that the correct hygiene practices are being followed. Safety is our priority, and we endeavour to make sure everyone at Stonbury goes home safe to their family.

Roof Refurbishment Over Live Water

Stonbury were contracted to refurbish the roof of a live contact tank & high lift sump to eradicate water ingress issues from existing membrane and joint failures.

This job consisted of:

  • Installation of 120m MOT roadway for access to the CT & HLS
  • Machine excavate soil overburdens and form trenches to the perimeter of both tanks
  • Break out 4th side concrete embankment of the HLS to 650mm below roof slab and reinstate with Gabion Baskets detail finish.
  • Prepare roof slabs for the application of 3615m2 Xeric membrane
  • Overband roof joints - Thoroflex
  • Install 1m wide reinforcement membrane strips over all perimeter roof wall joints/existing water bars
  • Install bitumen sheet roof membranes
  • Apply batten & Aqualine edge detail to perimeter of roofs and upstands
  • Install Geofabric membrane
  • Install new perimeter drainage system and outer perimeter land drains
  • Reinstate with 40mm stone overburden
  • Install GRP Walkway design and detail
  • Install New Hand railing edge protection
  • Reinstate tracked grounds
  • Reseed offsite stored spoil area with wild flower
Download a PDF of this project