The existing roof garden was looking very tired and very much in need of some significant maintenance. However, the current landscaping covered a far more significant problem. The existing roof waterproofing and subsequent build up was in excess of 25 years old. Following intrusive surveys, it was determined that the single ply waterproofing membrane had almost perished, with significant failures throughout. This had been causing Tesco considerable on-going issues with water ingress, subsequently affecting the customer experience within the store.

The garden area is a communal area for all the residents, where it was evident that a lot of love and attention had gone into the choice of plants and flowers. Any proposed solution would have to ensure that disruption was kept to a minimum and that the outcome was to leave the residents with a space that they can enjoy as much, if not more than they had with the previous landscape. This would of course have to be coupled with ensuring the roof was both wind and watertight for in excess of 35 years.

The solution was to completely remove all existing landscaping, waterproofing and associated items, and essentially starting with a new blank canvas. Weatherproofing Advisors then engaged with Bridgman and Bridgman landscaping to design and new landscape which support the needs of all of the residents. This design was done in consolation with the resident was so all aspects of their needs were understood. To support the introduction of the new landscaping, we proposed to instal a new inverted, insulated waterproofing system, comprising of Moy materials Para-Melt, Hot Melt system, Kingspan Extruded polystyrene insulation, inclusive of all necessary filter layers, outlets, trims etc. Weatherproofing amalgamated all of the different components to provide Tesco with a fully costed, robust design, which covered all the elements of the projects.

Delivery of project was complex and logistically challenging. It was important that disruption for all residents, Tesco customers, visitors and colleagues was kept to a minimum, but with Safety at the absolute heart of the overall project. A tower crane was erected and positioned in such a way that it was never stowed over any of the resident’s property. All of the existing landscaping was removed, and the materials were loaded from this position. Approximately 1100 tons of waste was removed from site, with all slabs and bricks recycled for hardcore and stone.