St Mary Redcliffe Project 450 RIBA 2 Stage End Report

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4.2 MECHANICAL & ELECTRICAL SERVICES AND SUSTAINABILITY 1 Introduction and Project Brief 1.1 Project Design Risks The Parochial Church Council of St Mary Redcliffe have appointed a design team to develop a proposal for planning for new visitor welcome and events spaces for the church comprising of a mixture of refurbished and new-build spaces. This will include a new-build events space, kitchen, café space, gallery and exhibition spaces and supporting back of house areas. The primary objective of this report is to present the Mechanical and Electrical Engineering options that have been discussed and agreed throughout stage 2. It will also ensure that the Client and all members of the project team are fully aware of the nature and implications of the building engineering design proposals prior to commencing the production of further design documentation. The deliverable for this stage of the site’s development is the production of this stage 2 report and accompanying sketches. The following have been identified as design risks at stage 2 that need to be resolved or confirmed at the beginning of stage 3: 1. External plant space is not fully identified and coordinated at this stage. 2. Options have been proposed for the heating, ventilation and air conditioning of the events space. These are to be agreed in stage 3. 3. Natural ventilation solutions are proposed for a number of locations. Modelling is required at stage 3 to assess the usage limitations imposed by this as a servicing strategy. Mechanical solutions have been investigated but not taken forward due to the impact on the architecture. 4. Current architectural proposals require the existing plant room height to be reduced. It may be possible to have this raised in local areas or it may require services diversions to accommodate and will need to be further surveyed. The report summarises QODA’s strategy options that have been formulated based on the initial meetings held to develop and clarify the brief. Figure 1 – Proposed model – Option 1 1563.R1 – Stage 2 report Page 4 of 29
1563.R1 – Stage 2 report Page 5 of 29 2 Key Design Drivers Environmental Requirements: Overheating Building Regulations: As the building is an extension it will fall under approved document Part L2B. CO2 calculations maybe required for the new build areas if the size of the extension is greater than 25% of the existing floor area. The extension and the provision of additional building services will also trigger consequential improvements and Acoustics Draughts Daylighting Air quality Occupancy hours and numbers Practical and easy to Maintain Expected energy demands therefore 10% of the primary works costs will need to be allocated to improving the existing building. Planning Requirements: The project falls under Bristol City Council and will need to meet there planning requirements. As part of the stage 3 works an energy statement will be produced which will show how we aim to meet the 20% renewable energy target as well as a feasibility into connection into the proposed district heating network. Passive design opportunities Capacity of existing utilities and site limitations Site Layout & Infrastructure Environmental Requirements Functional Requirements Architectural Design Massing / layout / fenestration / orientation Thermal performance / thermal mass / air permeability Energy/Client low carbon targets: Capital cost The question regarding client specific energy and carbon targets has been raised during this design phase. It was suggested that a workshop takes place to talk through the aspirations in more detail. QODA will arrange and this should be a key priority before we start stage 3 design work. Running cost Maintenance cost Costs Building Services Design Controls Centralised vs local Certifications e.g. BREEAM Performance Targets Legal requirements Building regulations Energy / Client low carbon targets? Planning targets / constraints Heating Hot Water Ventilation Cooling Lighting Power
Page 1 and 2: ST MARY REDCLIFFE PROJECT 450 RIBA
Page 3 and 4: CONTENTS 1.0 PROJECT TEAM 2.0 INTRO
Page 5 and 6: 2.0 INTRODUCTION Funded jointly by
Page 7 and 8: Project 450 Board Review Instructio
Page 9 and 10: 4.1 STRUCTURES Undertaken by Integr
Page 11 and 12: s dopted e, whilst A full CCTV surv
Page 13 and 14: 3.2 Existing Trees There are a larg
Page 15: Stability can be provided by reinfo
Page 19 and 20: LEGEND 40-60 W/m 2 HEAT GAINS - NAT
Page 21 and 22: LEGEND 40-60 W/m 2 HEAT GAINS - NAT
Page 24 and 25: 4.3 LANDSCAPE Introduction The purp
Page 26 and 27: Historical Context The southern chu
Page 28 and 29: Landscape Concept The diagram adjac
Page 30 and 31: Response to Site The ANGULAR framew
Page 32 and 33: Sketch Plan: North Churchyard 3 The
Page 34 and 35: Sketch Ideas Red cliff - continuati
Page 36 and 37: NORTH CHURCHYARD Simple high-qualit
Page 38 and 39: SOUTH CHURCHYARD Mown paths/ margin
Page 40 and 41: 4.4 SCHEME UPDATES ARCHITECTURAL PR
Page 42 and 43: FFL 12.00 FFL 10.36 FFL 10.36 FFL 1
Page 44 and 45: FFL 12.00 FFL 10.36 FFL 10.36 FFL 1
Page 46 and 47: 4.5 CURRENT PROPOSALS 11 13 3 9 10
Page 48 and 49: 27 29 28 A Concept Image for the Ne
Page 50 and 51: 31 32 The Chancel South Aisle & Pri
Page 52 and 53: 4.6 MATERIALITY The design team hav
Page 54 and 55: PROPOSED OPENING TO NORTH AISLE
Page 56 and 57: Former Opening to South Porch Stair
Page 58 and 59: 4.8 AREAS OF FURTHER INVESTIGATION
Page 60 and 61: 5.0 CONSULTATION In order to ensure
Page 62 and 63: 6.0 COST PLAN Throughout RIBA Stage
Page 64 and 65: 7.0 RISK REGISTER To ensure the eff
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SMR - PROJECT 450 - RISK REGISTER R
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8.0 PROGRAMME The below-listed prog
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10.0 APPENDICES Endnotes 1 Sampson,
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St Mary Redcliffe Appendix B BS 583
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10.2 ECOLOGICAL ASSESSMENT Contents
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2 Method 2.8 A list of other specie
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3 Results with some parts ancient w
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Eurasian Badger Meles meles Mammals
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oost is defined as any structure or
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Appendix 2 Policy & Legal Considera
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A A A A A A A A A A A A A A A A A A
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10.3 MEP STRATEGY 4 Site Infrastruc
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5 Proposed infrastructure This opti
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1563.R1 - Stage 2 report Page 12 of
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9 Mechanical Services Strategy 9.1
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In some public areas low surface te
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Drainage is provided to the existin
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Flexible conduits will be used for
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35 HYB ASS'D ROU 1 x 75 35 Hyb AR T
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St Mary Redcliffe Project 450 RIBA 2 Stage End Report

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