Hide Tower Roof Replacement and Decorations (AG112)

Condition Survey

The Principal Designer (PD) is to inform the Client, where additional survey or inspections are required to develop the PCI and inform the design process. The BSA PD and Fire Engineer to ensure that necessary surveys are conducted to facilitate the creation of the Gateway 1 Fire Engineer's Report. This should be followed by the progression to Gateway 2 and the establishment of the Golden Thread. The Principal Contractor (PC) is required to complete a pre-commencement non-invasive condition survey within all areas likely to be affected by the works, which shall contain written and photographic evidence of the existing conditions. The PC is to identify any areas of concern that may result in additional works being necessary, together with proposed remedial recommendations, within the scope of works. The non-intrusive condition survey is to be agreed with WCC/WCCs Client Representative and upon conclusion of the works the PC is to ensure the condition of any areas affected by the works are handed over to WCC in no worse a condition than at pre-commencement stage.

Access Required

Work at height will be required to carry out all aspects of the works. The Service Provider is to ensure that all work at height activities are risk assessed and that the proposed method of access to facilitate the works is detailed in the Construction Phase Plan (CPP) and are fully costed for. The Service Provider will need to acquaint themselves with the access arrangements available and provide specific proposals to facilitate the works necessary. All access proposals are to be identified and fully costed by the Service Provider. Should there be any reason that specific access arrangements cannot be fully evaluated and costed for then the Service Provider should identify these together with a defined Provisional allowance for each specific item/ area.

Steel Beams (Roof Level)

Remove rust, treat, seal and recoat. May require intumescent coating, to be advised by Fire Engineer.

Roof renewal

Location – Main Roof, Tank room roof, and Roof above the flats Full strip and replacement of the existing roof system, prepare to receive new Bauder Total insulated roof system incl. Outlets, collars, spigots, termination bars, supplying, installing and dressing lead, raising the thresholds where required, adjusting the RWPs and access ladders, etc to accommodate new roof level, etc Provide a sign at roof level stating installation date, contractor name, length of guarantee, guarantee end date and contact details for Westminster City Council if any future works are proposed to be carried out to the roof. Include all main and secondary roofs and ancillary parapet walls and details. Using an approved contractor for all associated works. Check and repair fall arrest system on the flat roof above the flats on terrace. All cables and services are to be maintained throughout the project. Cables are to be fixed in cable runs and reinstated on completion of works.

Data Cable Management

Test and check all data cables. Remove redundant cabling and dishes. Install new wall mounted cable tray for retained cables.

Communication Plants &CCTVs on the roof

Coordinate with the provider to remove the communication plants (x2 nos) (Note - We are working with the lead consultant who is managing with the multiple wayleaves. There will be a detailed record kept confirming timeframes and other details, etc.) We will liaise with the community safety lead who manages CCTV.

Rainwater pipes & Soil Vent Pipes

Test and undertake repairs and full cleaning of rainwater outlets and downpipes including replacements of elements which are beyond repair. Redecorate retained pipework and fittings. Test upon completion to ensure all rainwater systems are free of leaks and are discharging correctly. Fit cowls to Soil Vent Pipes (SVPs)

Louvres and Doors (Roof Level)

Remove timber louvred vents to the cold –water storage room and replace with new powder coated metal louvred vents. Redecorate timber doors to cold water storage tank room.

Internal Decorations

Location: North and South Staircase Redecorate metal balustrades. Redecorate timber handrails. Fit nosing to each step. Redecorate previously decorated ceilings with flame retardant paint (Class O/Euro class B) - South Stair only. Redecorate previously decorated wall incl. Skirting with flame retardant paint. (Class O / Euro class B) - South Stair only.

Fire Doors / Screens flat entrance lobbies

Repair/Overhaul all the existing fire doors/screens in the flat entrance lobby area on each floor. Redecorate all doors/screens.

Electrical meter cupboard doors

Repair where possible/Replace the electric meter cupboard doors located in the south staircase with suitable specification as per the Fire Engineer’s assessment.

Maintaining the Existing Building Services

Maintain the building services systems during the duration of the contract. Where services may not be functioning or operational for an extended period, prior notice shall be placed in the appropriate locations and residents shall be individually notified.

Builders work in connection

Carry out all builders work in connection with the works including subsequent making good of all disturbed finishes to a standard acceptable by Westminster City Council. Provide recommendations for any builders-work style items felt necessary (such as any minor building-fabric style repairs or decorative items associated with the works areas), submit for review and further instruction by Westminster City Council – a Provisional Sum in relation to any such works should be included at PEP stage.

Sustainability

Service provider to prioritize sustainability throughout the project by employing energy-efficient technologies and environmentally friendly practices. Using low carbon roofing insulation called Eco-FF by Bauder & Sustainability team, minimum insulation to 200mm PIR Board to be specified by Bauder. Solar PV panels to be incorporated within the major works project with collaboration from the roofing contractor to ensure warranties are not invalidated. Solar PV to serve common areas and will not serve individual flats.

Asbestos Management

A copy of the existing management survey and any R&D surveys have been supplied in the IPCI in Appendix 1 (As of June 2023 ). Live asbestos information can be found on the Westminster City Council asbestos portal, Shine. A copy of the existing management survey and any R&D surveys have been supplied in the IPCI in Appendix 1. Live asbestos information can be found on the Westminster City Council asbestos portal, Shine. The PD/PC is required to inform the client regarding the need to instruct any further R&D surveys as the design develops and the areas where intrusive works will be required are confirmed. The R&D survey will be instructed by the client through the asbestos management system and provided to the PD/PC as part of the PCI, to allow the CPP to be developed. The Service Providers Project Execution Plan needs to identify any further works, with estimated costs, for completing removal or encapsulation of ACMs to enable The Works. The SP is to ensure that any subcontractor undertaking asbestos removal works as part of The Works, fulfils the client’s requirements outlined in the WCC process and procedure documents and are deemed competent to undertake the required works.

Other Potentially Hazardous Circumstances

Where held the Client has provided relevant information regarding the existing structure(s) and materials in the IPCI. The PD/PC is to inform the client if during the design stage, it becomes evident that there is the potential for other deleterious materials or hazards to be present and further inspection or testing is required. Other materials that may be present or that need considering include but are not limited to: Lead Paint. Hazardous Area Classification (HAC). Horsehair plaster. Clay pot floors. Calcium silicate brickwork. Reinforced Autoclaved Aerated Concrete (RAAC) planks. Tesserae. Vermiculite. Other hazards that may be present: Fragile roof materials. Unprotected flat roofs.

H&S File & O&M Manual

Update the existing Health and Safety File and Operating & Maintenance manuals for the building and for all systems associated with The Works. Refer to the existing H&S file in Appendix 1. The file shall be in accordance with and as detailed within the Term Partnering Contract. This is to include but is not limited to. A detailed future Planned Preventative Maintenance (PPM) programme/ regime associated with The Works. As-built drawings, specifications, schematics, schedules etc. Manufacturers details, guarantees and warranties (as applicable) Details of risks and hazardous materials not eliminated through design. Site Investigation Reports. Statutory authority consents and approvals.