Complete guide to the 2026 legislative changes for construction products: the new European CPR 2, digital Performance Declarations, mandatory CE marking, nZEB requirements and what to check when buying windows or doors in Romania.
What is the European Construction Products Regulation (CPR)?
Regulation (EU) No 305/2011 — known as the CPR (Construction Products Regulation) — is the European legislation governing the marketing of construction products in the EU. It requires manufacturers to draw up a Declaration of Performance (DoP) and apply CE marking to products, including windows, doors, PVC and aluminium profiles.
What Changes Does 2026 Bring for Construction Products?
1. New CPR 2 — Entry into Force
The European Commission adopted in 2024 Regulation (EU) 2024/3110, replacing the 2011 CPR with stricter requirements:
Key changes:
- Digital Performance Declarations (eDoP) — mandatory from 2026, accessible via QR code
- Digital Product Passport (DPP) — each product will have a unique European ID with full technical specifications
- Extended ESG requirements — carbon footprint (PCF) and recycled material content declarations become mandatory for selected categories
- Stronger market surveillance — stricter controls for products imported from outside the EU
2. Standard EN 14351-1 Update 2026
The window and external door standard is under revision, expected 2026–2027, introducing:
- Updated air permeability requirements (Class 4 — mandatory for nZEB)
- Enhanced wind resistance testing (≥ Class C3)
- New burglar resistance requirements (RC2 for residential buildings)
3. nZEB Requirements — Remain Mandatory
Since 2021, all new constructions in Romania must meet the nZEB standard, requiring:
- Uw ≤ 1.00 W/(m²K) for windows in Zone II (Bucharest)
- Primary energy consumption ≤ 100 kWh/m²/year
- Minimum 10% energy from renewable sources
From 2026, the State Construction Inspectorate (ISC) intensifies checks at reception, with mandatory verification of windows' and doors' technical documents.
4. CE Marking — What to Check
Any window or door legally sold in Romania and the EU must carry CE marking with:
- Standard reference (EN 14351-1)
- Declared values: air permeability, water tightness, wind resistance, Uw
- DoP reference number
What this means for you as a buyer: Always request the product DoP and test certificate (IFT Rosenheim, TÜV, CSTB) before signing the contract.
FAQ — Construction Products Legislation 2026
What is the Declaration of Performance (DoP)?
The DoP is the mandatory document issued by the manufacturer declaring the tested technical values of the product (Uw, air permeability, wind resistance, etc.) per EN 14351-1. Without a DoP, the product cannot be legally marketed in the EU.
What is CE marking on windows?
CE marking confirms the window has been tested and meets EN 14351-1 requirements. It is not a quality mark but a mandatory conformity declaration for EU marketing.
Is nZEB certification mandatory for renovations?
Yes, for permitted renovations affecting more than 25% of the building envelope. If replacing all windows in a building, the project must achieve nZEB performance.
What specifically changes in 2026 vs 2025?
Digital DoPs with QR codes become standard, ISC checks at reception intensify, and CPR 2 enters transition period (manufacturers have 3 years for full compliance).
Neofort BIZ supplies exclusively CE-marked products with complete DoP. Request technical documents for any product.
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