PREN 15978 : DRAFT 2009

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and Units
5 The process for setting up the calculations required
   for the assessment
6 Purpose of the Assessment
7 Specification of the object of assessment
   7.1 Functional equivalent
        7.1.1 Type and use of the object of assessment
        7.1.2 Reference study period
   7.2 System boundary
        7.2.1 Boundary of the Product Stage (Modules A1 to A3)
        7.2.2 Boundaries of the Construction Process Stage
        7.2.3 Boundaries of the use stage (Modules B1- B7)
        7.2.4 Boundary of the end of life stage (Modules C1-C4)
   7.3 Building model
        7.3.1 Purpose and information needed
        7.3.2 Description of the physical characteristics
               of the building
8 Scenarios for defining the building life cycle
   8.1 Requirements for scenarios
   8.2 Time related characteristics and associated
        scenarios
        8.2.1 Climate conditions
        8.2.2 Other specific requirements for scenarios
   8.3 Scenarios for the product stage (Modules A1 to A3)
   8.4 Scenarios for the construction process stage
        (Modules A4-A5)
   8.5 Scenarios for Use stage (modules B1 to B7)
        8.5.1 Scenario related to use stage (except energy
               and water) - Module B1
        8.5.2 Scenarios for maintenance, repair, replacement -
               Module B2, B3 and B4
        8.5.3 Scenarios for refurbishment - Module B5
        8.5.4 Scenarios for Operational Energy Use - Module B6
        8.5.5 Scenarios for Operational Water use (Module B7)
   8.6 Scenarios for the End of life stage (Modules C1 to C4)
        8.6.1 Scenarios for deconstruction - Module C1
        8.6.2 Scenarios for transport - Module C2
        8.6.3 Scenarios for recycling and reuse - Module C3
        8.6.4 Scenarios for disposal - Module C4
9 Quantification of the building and its life cycle
   9.1 Specification net amount
   9.2 Specification gross amount
        9.2.1 Components that will not be replaced under
               normal conditions
        9.2.2 Replaceable components and number of
               replacements
   9.3 Type of data available for the assessment
        9.3.1 Demands for completeness
        9.3.2 Cut-off rules
   9.4 Quantification specific to operational energy use
   9.5 Quantification specific to operational water use
10 Selection of environmental data
   10.1 Use of Environmental Product Declaration (EPD)
   10.2 Other sources
11 Calculation of the environmental indicators
   11.1 Environmental impacts and aspects and related
        indicators
        11.1.1 Quantified indicators for environmental impacts
               expressed with the impact categories of LCIA
        11.1.2 Quantified indicators for environmental aspects
               expressed with data derived from LCI and
               not assigned to the impact categories of LCIA
   11.2 Calculation methods
12 Reporting of the assessment of results
   12.1 General information on the assessment
   12.2 General information on the building
   12.3 Statement of boundaries and scenarios used
        in the assessment
   12.4 Data sources
   12.5 List of environmental indicators used for
        assessment and expression of results
13 Verification of results
Annex A (informative) - Bibliography
Annex B (informative) - Building description
Annex C (informative) - Principles for quantification
Annex D (informative) - Construction phase
Annex E (informative) - Use phase
Annex F (informative) - After use phase (end of life)
Annex G (informative) - Energy and mass flows
        Resource use other than energy
Annex H (informative) - Allocation rules at the end of life of
        the building
   H.1 Allocation of emissions, resources and energy
        to the building due to reuse and recycling of
        products and materials
   H.2 General principles for allocation
        H.2.1 Rules for allocation of multi-output processes
        H.2.2 Rules for allocation of recycling- and
               reuse processes

Describes the evaluation and assessment of design options and specifications for new and existing buildings and refurbishment projects.