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Tag: Related study objective: comparative assertion

B- 10. “Repair with screening LCA”

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Aspect B- 10. “Repair with screening LCA”
Description
 Repair module covers all corrective, responsive or reactive treatment of a construction product or construction works to return it to a condition in which it can perform its required functional and technical performance. It covers only the partial replacements of components and building parts (in case of failure), and should be distinguished from the replacement module that is related to the complete replacement of component and building parts.

related study objective

 ☒ stand-alone LCA ☒ comparative assertion

related study phase

 ☒ ☐ ☐ ☐ ☐
goal and scope definition inventory analysis (LCI) impact assessment (LCIA) interpretation reporting

relevant for
new buildings existing buildings construction products screening LCA simplified LCA complete LCA
Provisions Repair is optional in the context of screening LCA. For provision and guidance, please refer to the aspect “Repair with complete LCA” of the present document.The reparation procedure refers only to corrective, responsive or reactive actions in response to losses of performances of a building component or building part.Repair is distinguishable from maintenance and replacements by the following aspects [EN 15804]:

  • Maintenance is a planed (proactive) action that maintain components performances whereas Repair is a corrective (reactive) action in response to damage;
  • Replacement covers the complete replacement of a component whereas Repair covers only replacement of sub-components.

According to EN 15978, the boundary for repair should include:

  • the production of the repaired part of component and ancillary products;
  • the transportation of the repaired part of component and ancillary products, including production impacts
  • and aspects of any losses of materials during transportation;
  • the repair process of the repaired part of component and ancillary products;
  • waste management of the removed part of the component and of ancillary products;
  • the end of life stage of the removed part of the component and of ancillary products

However, in the context of screening LCA, only the production of the replaced component/repaired part may be included.
Rules from:
 EN 15978:7.4.4.1 General7.4.4.4 Boundary for repair (module B3)8.3 Time related characteristics

8.6.3 Scenarios for maintenance, repair, replacement

EN 15804:

6.3.3. Reference service life

6.3.4.4.2  – B3 Reparation

7.3.3.1 B1-B5 use stage related to the building fabric

Annex A
Guidance
 Repair is optional in the context of screening LCA and may be neglected in many cases. For provision and guidance, please refer to the aspect “Repair with complete LCA” of the present document.

Back to 5.4.  Module B3

B- 11. “Inclusion of energy and materials for repair”

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Aspect B- 11. “Inclusion of energy and materials for repair”
Description
 The inclusion of energy and water use, material use, etc. is framed by standards EN 15804 and EN 15978. The EeBGuide provides additional information and guidance on how (and when) to include or exclude a given aspect of the study.

related study objective

 ☒ stand-alone LCA ☒ comparative assertion

related study phase

 ☒ ☐ ☐ ☐ ☐
goal and scope definition inventory analysis (LCI) impact assessment (LCIA) interpretation reporting

relevant for
new buildings existing buildings construction products screening LCA simplified LCA complete LCA
Provisions According to EN 15978, the boundary for repair should include:

  • the production of the repaired part of component and ancillary products;
  • the transportation of the repaired part of component and ancillary products, including production impacts
  • and aspects of any losses of materials during transportation;
  • the repair process of the repaired part of component and ancillary products;
  • waste management of the removed part of the component and of ancillary products;
  • the end of life stage of the removed part of the component and of ancillary products

Water and energy usage related to the repair process should always be included.

However, Repair is considered optional. Please refer to the aspects “Repair with complete LCA”, “Repair with simplified LCA” and “Repair with screening LCA” for further details.
Rules from:
 EN 15978:7.4.4.1 General

7.4.4.4 Boundary for repair (module B3)

8.3 Time related characteristics

8.6.3 Scenarios for maintenance, repair, replacement

EN 15804:

6.3.3. Reference service life

6.3.4.4.2  – B3 Reparation

7.3.3.1 B1-B5 use stage related to the building fabric

Annex A
Guidance
 In the context of simplified and screening LCA, only the production of the replaced component/repaired part may be included.Please refer to the aspects “Repair with complete LCA”, “Repair with simplified LCA” and “Repair with screening LCA” for further details.

Back to 5.4.  Module B3

B- 17. “Inclusion of energy and materials for replacement”

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Aspect B- 17. “Inclusion of energy and materials for replacement”
Description
 The inclusion of energy and water use, material use, etc. is framed by standards EN 15804 and EN 15978. EEB guide provides additional information and guidance on how (and when) to include or exclude a given aspect of the study.

related study objective

 ☒ stand-alone LCA ☒ comparative assertion

related study phase

 ☒ ☐ ☐ ☐ ☐
goal and scope definition inventory analysis (LCI) impact assessment (LCIA) interpretation reporting

relevant for
new buildings existing buildings construction products screening LCA simplified LCA complete LCA
Provisions In the context of simplified LCA, the following items may be neglected upon justification:

  • Production, transportation, waste management, and end of life of ancillary products;
  • Energy and water usage related to the replacement process;
  • Losses of materials during storage, transportation or implementation (if not known).

In the context of screening LCA, only the production of the replaced component may be included.

Please refer to the aspects “Replacement with complete LCA”, “Replacement with simplified LCA” and “Replacement with screening LCA” for further details.
Rules from:
 EN 15978:7.4.4.1 General7.4.4.5 Boundary for replacement (module B4)8.3 Time related characteristics

8.6.3 Scenarios for maintenance, repair, replacement

EN 15804:

6.3.3. Reference service life

6.3.4.4.2  – B4 Replacement

7.3.3.1 B1-B5 use stage related to the building fabric
Guidance
 Please refer to the aspects “Replacement with complete LCA”, “Replacement with simplified LCA” and “Replacement with screening LCA” for further details.

Back to 5.5.  Module B4

B- 19. “Operational Energy exported and on-site produced and allocation of environmental impacts”

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Aspect B- 19. “Operational Energy exported and on-site produced and allocation of environmental impacts”In future, buildings will not only be energy- efficient, but also will produce energy on site in multiple ways.
Description
 The energy produced at the building site may not only be consumed in the building, but also exported to the grid. For such cases, calculation and allocation rules need to be defined.

related study objective

 ☒ stand-alone LCA ☒ comparative assertion

related study phase

 ☒ ☐ ☐ ☐ ☐
goal and scope definition inventory analysis (LCI) impact assessment (LCIA) interpretation reporting

relevant for
new buildings existing buildings construction products screening LCA simplified LCA complete LCA
Provisions Impacts have to be calculated with regards to EN 15978, in Annex B case studies of different energy related questions are provided.
Rules from:
 EN 15978:8.6.5 Scenarios for operational energy use – Module B6Annex B (informative) Exported energy – Case studiesCase 1 (Scenario for energy use, supply and import)

Case 2 (Scenario for energy use and export)

Case 3 (scenario for energy use, supply and export)

Case 4 (scenario for energy export)

EN 15804:

Not mentioned

ILCD:

Not mentioned
Guidance
 The case studies in Annex B of EN 15978 are helpful to identify the situation that applies to a concrete case study. From these case studies, the treatment of the situation may be extracted.

Back to 5.7.  Module B6