B-10 Assessment of different repair and maintenance alternatives

Aspect B-10 Assessment of different repair and maintenance alternatives
The performance of a product often depends on maintenance. However, several maintenance schemes may be developed for the same product, depending on the owner’s requirements and the building specifics. In the case of the repair module, several repair alternatives may also be considered, notably for an existing building.

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 When considering and comparing several repair or maintenance scenarios, the following items should be taken into account and documented:

  • Any deviation from the scenario contained in EPDs should be justified and documented.
  • Overall repair scenarios should be consistent with the RSL of each component or building part, notably by referring to the ISO 15686 series [ISO 15686].

The consequences of the repair scenario should be studied (the influence on future maintenance and replacement scenarios, and the impacts on building performance).

Rules from:
EN 15978: General 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  – B3 Reparation B1-B5 use stage related to the building fabric
Annex A

The overall repair scenario should be consistent with respect to the building structure (e.g. replacement of coating is mandatory if repairing the support).Figure 17: Replacement cycles [EN 15804]The boundaries of the repair and maintenance modules should be similar in the case of comparison (refer to ‘Repair with complete LCA’ for further guidance).It is recommended that sensitivity analysis be used when comparing different scenarios.

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