GBC Version Development

GBC Version 1 Features

Whole Building and Room-by-room schedule of accommodation:
- add: dimensions: areas and volumes calculate automatically,
- add: hours of operation, design temperatures inside and out
Room-by-room heat loss calculator:
- determine radiator or underfloor heating requirements;
- to size the boiler or insulate to meet the boiler size.
Analysis of Form Factor:
- optimal U values to respond to them,
- thickness of different insulation materials
Elements and secondary-elements:
- select from ready-made lists to match the project;
- dimensions are added by the user and their areas are automatically calculated
Schedules of windows, rooflights and doors:
- Since they may come in a multitude of sizes
Building Performance Targets:
- Users can compare and choose between:
- Building Regulations Part L,
  - other national standards
- Design Standards:
  - LETI, AECB CarbonLite, Passivhaus, EnerPHit,
  - Environmental Assessment Methods: BREEAM etc.
  - other national design standards,
- including: U values, Airtightness, Form factors, Elevation glazing percentage and orientation
Automatically and instantly see what thickness of different k-value insulation materials is needed to meet targeted U values
Elemental Assemblies:
- Allows user to choose a combination of functional components and then choose the materials or products for each component
Costs of insulation, windows and energy savings:
- Helps users to persuade clients to spend money on insulation and higher performance windows and glazing (Version 1 only)
Bill of materials, quantities, labour and costs:
- enables cost planning and proper value engineering (Version 2)
- based on building fabric only (Version 2) services in later versions
Element Summary: compare calculated U values with selected or target U values. highlighting ‘pass’ of ‘fail’
Summary of calculated energy losses or demands:
- For each element, secondary-element and whole building
- Totals elements and secondary elements as a percentage of the whole
Allows comparisons to be made, by the user, to prompt reconsideration of earlier decisions

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GBC Versions 2 Features: under development

Green Building Calculator V2 is being developed now, including:

Bill of Materials, Quantities, Accessories, Products, Labour, Costs,
- For Cost Planning, Quote collection, Tendering
Retrofit:
- Historic fabric element upgrades, inside or out
- Add domestic furniture fixtures & equipment
- Add solar shading, decking, pergolas,
- Add hard and soft landscape
Embodied Energy, Embodied Carbon, Sequestered Carbon Calculator (EE EC SC)
- ICE Database v1.6 > v3 (for EE EC)
Domestic Landscape Elements
Basic Civils & Infrastructure Elements
More Generic Material datasets

GBC Versions 1 to 35 Summary

The development order is subject to GBC user feedback:

35 Versions are now planned to add to their functionality in the following years including:

V1 Building dimensions, form factor, regulations, design standards, temperatures, hours, elemental assemblies, in-use energy, fuel choice, carbon in-use
V2 Retrofit, Terraces, Community level, MEP Services
V3 Decrement Delay, Form Factor refinements: dormers, bays, porches
V4 Building Section Coding, Competent Application,
- 892 ready made elements, Bespoke Assemblies, Accessories, Specification Generator
V5 Non-Domestic, Retrofit and Newbuild more refinement
V6 Embodied Energy, Carbon and Sequestered carbon; Non-external envelope elements
V7 Condensation Check, Thermal Bridge, Secondary Element Calculator, Thermal mass calculator
V8 LCA Calculator
V9 Landscape
V10 Civils and Infrastructure: scope Increased
V11 Waste Calculator using WasteCost®Lite
V12 Plastic free v Recycled Plastic
V13 Interiors: Scope increased, Ska fit-out. refit
V14 Circular economy: Reclaim Reuse
V15 Self-build Interface
V16 CAD BIM App
V17 Whole Project Budget Calculations, full Fee bid calculation based on cost plan
V18 EU and International versions
V19 Services Design Module: Occupancy level, Energy Sources and uses,
V20 Lighting Design Module: Health & Wellbeing, Light Nutrition
V21 Biodiversity Inclusion, Biodiversity Net Gain
V22 Local Climate Appropriate construction and materials
V23 Vernacular, local: materials, trades, economy
V24 GBPB Green Building Price Book
V25 O&MM Operation & Maintenance Manuals
V26 FM Specification
V27 Local Procurement, Transport to site, distance search facility
V28 On Site Construction Emissions
V29 Design Life, Durability and Competent Products
V30 Air tightness & Energy Loss
V31 Value Engineering Opportunities: in not out
V32 Healthy Building
V33 Screening Priorities
V34 Indoor Air Quality
V35 Natural Lighting Levels

B Bespoke

Discussions have started or bespoke versions are being developed

B1 Retrofit Window & Insulation Calculator
B2 Responsible Retrofit Carbon Calculator
B3 Window Calculator
B4 Screeds Calculator
B5 QS interface

Future Development

GBC will maintain a stakeholder group to ensure we make what you want and need
Having a large number of users will help with:
- error detection, feedback loops, encouraged by free upgrade versions
- developing GBC Green Building Calculator with more features and stronger datasets
We will encourage customisation requests to be shared; ideas will be considered for development into the core file for the greater good
Users will be invited to review the 35 version’s order of development, in case users want something sooner, by popular demand