Project overview information:
- Value: Over £250K
- Size of project: 1500m2
- Main contractor: Parkeray
- Client: University of Westminster Harrow
- Length of contract: 2 months
Complete installation of a roof garden
We were appointed by the main contractor for a complete installation of a roof garden. One of the primary challenges as with most roof gardens; is building access. Although the project was carefully planned during the summer term, the University was still accessed by many students. Also, it did not help for the roof garden to be next to the library’s study area, so these were factors we had to take into careful consideration. All materials and waste were organised for delivery with a crane in one day, and we are happy to say it all went to plan due to careful planning and preparation.
We worked alongside the main contractor and principal designer. Most of the hard landscaping was bespoke; pods were delivered pre-made, seating was purchased from blueton and were installed on existing concrete seats. All the rest of the timber used was IPE including deck, seats, and pods which were cladded with the same timber. Corten raised beds were supplied by Kinley. Other materials such as block paving, sundial, paving and steps were repaired and refurbished. All of our engineering calculations were carefully planned to make sure the roof was able to hold the new scheme. Soft landscaping and irrigation work was completed by our team.
After successfully completing all hard landscaping, we used the same crane for delivering on the roof garden all the plants, soil, compost and for the removal of the existing soil. The main challenge was to protect the planting and soil until the all hard landscaping was installed. The designer had carefully planned the planting plan to create straight lines that followed through the deck, artificial grass, lighting and seats. As with many roof gardens, a timed commercial irrigation system was installed for all planting. Bark mulch has been spread evenly after the project was completed.
A simple low maintenance scheme
The beauty of this project was to create a simple, low maintenance scheme that looks stunning from all sides of the building. The roof garden courtyard was viewed on all sides. We as a team were in a ‘‘big brother house’’. Although it is hard to get used to these situations, having art students appreciating and thanking our team was very special. We all were humbled and grateful to build a scheme of this importance.
This project had to be planned carefully and was completed on time and to the highest standard. The finished result is stunning. This project has improved our knowledge and skills and has made us stand alongside the most reputable commercial landscaping and roof gardens specialists in Greater London.