At a glance
- A4/A5 documentation concerns the construction process, not the whole building assessment.
- Useful inputs can include transport, energy, fuel and material-waste information.
- The calculation specialist should define the required records and permitted assumptions.
- An invoice or photograph needs context before it becomes a usable input.
Who supplies A4/A5 documentation
The client and project advisers should agree who prepares the climate calculation. Contractors and subcontractors then supply the project information within their agreed scope. A4/A5 documentation works best when those responsibilities are clear before deliveries, equipment use and waste movements begin.
Ask the calculation specialist for a concise data list with units and periods. Identify which suppliers can provide the records and which person gathers them. Avoid sending the site team a general request for “all climate information”. A4/A5 documentation needs information that matches the selected calculation method and can be traced to the relevant project activity.
Set the boundary for A4/A5 documentation
Agree which activities and reporting periods belong to the project’s assessment. Transport, temporary installations and shared equipment can raise allocation questions. A4/A5 documentation should record how the specialist expects those questions to be handled, rather than leaving each subcontractor to invent its own approach.
Write down the agreed reporting boundary and keep it with the request sent to suppliers. If equipment or a delivery serves several projects, identify the information available and ask the specialist how allocation should be documented. For A4/A5 documentation, consistency is more useful than a large volume of records that describe incompatible periods or units.
Capture transport information with a usable reference
Ask which transport inputs the calculation method requires and whether supplier statements or other records provide them. Where project-specific data is used, connect the transport information to the material, shipment or activity. A4/A5 documentation should make the reference understandable to someone who was not present when the delivery arrived.
Check units and descriptions before accepting a supplier’s table. A distance, a load quantity and a vehicle description answer different questions. Keep the original statement and explain any conversion used by the responsible specialist. Do not turn an incomplete delivery note into a precise result by adding assumptions that nobody has reviewed.
Energy records for A4/A5 documentation
Agree how electricity, heating and fuel information will be gathered for the relevant site activities. Keep the source, unit and period clear. A4/A5 documentation may draw on meter records, supplier statements or equipment information depending on the method. Ask the specialist what is needed before choosing a reporting template.
Where meters serve several activities, identify the shared supply and retain the basis for any allocation. Distinguish measured information from estimates or permitted standard values. A4/A5 documentation should preserve that distinction in the records sent for calculation. A spreadsheet total without dates or units is difficult to review and can hide a reporting gap.
Connect waste information to the activity
Ask how material waste and its handling enter the assessment. Agree the records needed from the performing companies and waste recipients. A4/A5 documentation should connect a quantity and material description to the project, reporting period and source rather than relying only on a photograph of a container.
Review the descriptions used across records. A waste statement, delivery record and material list may use different names for the same item. Ask for clarification where those differences affect the calculation. Keep corrected descriptions traceable. Good A4/A5 documentation helps the specialist identify the relationship between records without having to guess what the site team intended.
Missing inputs in A4/A5 documentation
Maintain a short list of outstanding information with an owner and due date. Record whether the missing item is a supplier statement, a unit clarification or a decision about the data method. A4/A5 documentation is easier to complete when the next action is specific enough for the responsible person to carry out.
Do not enter zero because a figure is unavailable. Ask the calculation specialist whether an allowed standard value or another documented approach is appropriate. The official guidance permits different routes for relevant inputs; it does not justify an undocumented guess. Keep the chosen approach with the A4/A5 documentation so later review can follow it.
Review records during the project
Test the reporting process on the first relevant period. Check whether suppliers can provide the requested units and whether the team can connect records to the project. Adjust the request early if it produces unusable information. A4/A5 documentation should be a manageable reporting task, not a collection exercise postponed until completion.
At each review, compare received records with the agreed input list and upcoming activities. Keep the issued set and later corrections identifiable. Ask the specialist to review inconsistencies before final calculation. A4/A5 documentation is more reliable when questions are resolved while the supplier and site team can still explain the original activity.
Keep the assessment and source data separate
The calculation specialist converts suitable inputs into the regulatory assessment. Retain the input records, assumptions and issued result in linked but distinct areas. A4/A5 documentation does not, on its own, demonstrate that the construction-process limit has been met. The applicable calculation and review still need to be completed.
Also distinguish these climate modules from an A5 structural as-built document. They share a label but describe different things. Keep structural execution records in their own project structure. A4/A5 documentation should use a title that makes the climate context clear, especially where the same team handles both sets of information.
Effective date and source check
The construction-process climate requirements discussed here were introduced from 1 July 2025 for covered projects. Sources were checked on 9 October 2026. Recheck applicability and the accepted data approach before using A4/A5 documentation from another project as a template for the current case.
Frequently asked questions
Are invoices enough?
They can provide useful inputs if the project, period, quantity and unit are clear. A4/A5 documentation may need additional information or a documented allocation. Ask the calculation specialist which records meet the selected method.
Must we collect every possible measurement?
Agree the relevant method and required inputs first. Official guidance provides different documentation routes. Collect useful records for that approach, rather than asking the team to gather data that will not be used.
Can photographs replace consumption records?
Images can explain an activity or equipment arrangement. They usually do not establish consumption quantities on their own. Use photographs as supporting context within A4/A5 documentation, with suitable quantitative records where required.
Is this the same as A5 as-built documentation?
No. The A4 and A5 climate modules concern the construction process. An A5 structural document has a different purpose. Keep the titles and delivery responsibilities distinct to avoid sending one instead of the other.
General professional information. The individual project may require legal or technical assessment. The suggested workflows do not replace applicable requirements or competent specialist instructions.
Sources checked 9 October 2026. Technically reviewed by Kvalitetssikring Danmark ApS.
Sources
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