Marsh Farm Regeneration Phase 1 Redevelopment; the construction of a new shopping facility consisting of 7 retail units with 24 modern apartments built above it.
The highly anticipated Marsh Farm central area development is underway with the major development to provide new modern residential units and retail facilities, which will completely rejuvenate the area. The first phase of the scheme will see the construction of a new shopping facility and will have 24 new 1 & 2 bedroom flats above, which will be let to local residents. Once the shopping centre is vacant demolition of the Purley Centre can start to allow the construction of a further 93 new homes, which are currently scheduled to be completed in 2019. The scheme has been designed by Architects, who have worked in partnership with the Marsh Farm Steering Group. The group consisted of residents, businesses and key stakeholders from the Marsh Farm estate.
Keepmoat Regen Ltd awarded DF Roofing Ltd the contract for the whole roofing package consisting of everything above the roof deck. This consisted of a warm deck waterproofing system to the main roofs and balconies, PPC capping/ Bullnose/ Rainwater Goods, Green Roof and Photovoltaic System.
The waterproofing system installed was an ICB Evalon-V Alwitra warm deck consisting of a PVC single-ply membrane fully adhered to a 120MM insulation scheme over a Polyethylene Vapour Control Layer onto a timber deck to achieve the target u-value of 0.18 w/m2k. All upstands to parapets were weathered using an unbacked Evalon-V coming up and on terminated with a PPC Capping.
ICB Diadem Green Roof
The green roof was specified on the lower roof only, for this we have used an ICB Diadem 350 build-up of protection fleece, drainage layer and filtration fleece. We then used a deep extensive growing medium finished with a plug plant and seed mix, which gives a very high ecological value and a long lasting colourful blooming effect.
For the PV we have installed 60no 250w Polycrystalline panels to the higher elevation all south facing. These were mechanically fixed through a 15 degree mounting system direct to a solar fix bar, which is a reinforced metal tube with a PVC membrane casing that gets welded to the finished membrane.
This is a great way of installing a lightweight PV system to a single-ply membrane roof without penetrating the system and having to weather additional posts.
With the Powder Coping Aluminium goods we had a number of items, which were included on this part of the project ranging from capping work to the parapet alls around all of the perimeter, down to the Rainwater Goods. For the Cappings and Bullnose we surveyed, fabricated and installed a 2mm thick aluminium. This was then powder coated to a RAL of 7015 with a matt finish and fixed to a secret fix bracket, which gives a seamless continuous finish with no fixings on show.
We worked closely alongside Keepmoat to keep the program as the scaffold was dropped. We then installed all the hopper heads and downpipes from the outlets, which with no access had to be installed from an extendable working platform (cherry picker). The system specified for this part was an ‘anti-vandal down pipe’ fixed tight, direct to the building with no brackets on show or areas where these can be vandalised and pulled away from the wall.