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Blue Angel Explained

Germany's environmental label and what it means for construction products

5 min readUpdated April 2026

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What is the Blue Angel?

The Blue Angel (Blauer Engel) is the world's oldest environmental label, established in Germany in 1978. It is awarded to products and services that are significantly better for the environment and health than comparable conventional products.

Unlike single-issue certifications (e.g. Greenguard for emissions, FSC for forestry), the Blue Angel assesses multiple environmental and health criteria simultaneously. For construction products, this typically covers raw material sourcing, manufacturing emissions, chemical content, indoor air quality impact, durability, and recyclability.

The scheme is operated by RAL gGmbH on behalf of the German Federal Ministry for the Environment. Criteria are developed by the German Environment Agency (UBA) with expert panels for each product category.

What the Blue Angel covers for construction products

The Blue Angel has specific criteria sets for different product categories. For construction materials, the most relevant categories include:

TopicDetail
Low-emission floor coverings, adhesives, and sealants (RAL-UZ 113)Tests for VOC and SVOC emissions, restricts formaldehyde and other harmful substances
Low-emission wall paints (RAL-UZ 102)Limits on VOC content, preservation agents, and plasticisers. Requires good covering power and durability.
Low-emission wood products and panels (RAL-UZ 76)Limits on formaldehyde emissions from composite wood. Covers chipboard, MDF, OSB, and plywood.
Thermal insulation from recycled materials (RAL-UZ 132)Criteria for insulation products made from recycled glass, paper, or textiles, covering both environmental performance and emissions
Low-emission furniture and mattressesRelevant for fit-out and interior specification

Note. Each product category has its own RAL-UZ number with specific criteria. The Blue Angel for paints covers different things than the Blue Angel for insulation. Always check which criteria set applies to the product you are evaluating.

How it differs from other certifications

Blue Angel plays a specific role among environmental certifications for construction products.

TopicDetail
vs GreenguardGreenguard focuses solely on indoor air quality emissions. The Blue Angel covers emissions but also assesses material sourcing, manufacturing impact, and end-of-life. It is a broader assessment.
vs EU EcolabelBoth are multi-criteria environmental labels backed by government bodies. The Blue Angel has stricter criteria for some product categories (particularly VOC limits) and a longer track record. The EU Ecolabel has wider geographic recognition across EU member states.
vs Cradle to CradleC2C focuses on circular design (material health, reuse, renewable energy). The Blue Angel focuses on reducing environmental and health impact within a linear lifecycle. They complement each other rather than competing.
vs EPDAn EPD provides data without passing judgement. The Blue Angel sets performance thresholds: a product either meets the criteria or it does not. An EPD tells you the carbon figure; the Blue Angel tells you the product has met a defined environmental standard.

Relevance for UK construction

The Blue Angel is a German certification, but it is increasingly relevant for UK projects for several reasons.

Many construction products used in the UK are manufactured in Germany or imported from German-speaking markets - particularly insulation, adhesives, sealants, paints, and engineered wood products. These products may already carry the Blue Angel regardless of whether the UK specifier requested it.

UK green building rating systems recognise the Blue Angel as evidence of environmental performance. BREEAM accepts it as evidence for Hea 02 (indoor air quality) and Mat 01 (responsible sourcing) where relevant. WELL accepts it as evidence of low-emitting materials.

For projects targeting Passivhaus certification, many certified components from the German and Austrian markets carry the Blue Angel alongside Passivhaus certification. The two schemes have significant overlap in the products they cover.

How to verify a Blue Angel claim

The Blue Angel maintains a comprehensive public product database.

  1. Search the Blue Angel product database

    Verify at blauer-engel.de that the product and manufacturer are listed.

  2. Check the licence number

    Every certified product carries a Blue Angel licence number (e.g. DE-UZ 123). Verify it matches.

  3. Confirm the product category

    Blue Angel has category-specific criteria. Ensure the product is certified under the relevant standard.

  4. Check validity

    Blue Angel licences are time-limited. Ensure the product's certification is current.

When to specify the Blue Angel

The Blue Angel is most useful as a specification criterion in these situations.

TopicDetail
Interior products where indoor air quality mattersPaints, adhesives, sealants, flooring, and composite panels that off-gas into occupied spaces
Projects targeting WELL or LEEDWhere low-emission evidence is needed for multiple product categories
German or European supply chainsWhen sourcing from manufacturers who are likely to hold the certification already
Passivhaus projectsWhere component suppliers from the German market often hold Blue Angel alongside Passivhaus certification
Projects where multi-criteria assessment is valuedWhen you want assurance beyond just emissions, covering sourcing and manufacturing impact as well

Tip. If a product holds both Greenguard Gold and the Blue Angel, you have strong evidence on both emissions performance and broader environmental impact. The two certifications complement each other well.

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