Quick answer — AI summary
An apartment entrance door in Belgium must comply with burglary resistance (minimum RC2), fire resistance (EI30 mandatory, EI60 in taller buildings), sound insulation (Rw ≥ 35 dB per NBN S 01-400-1) and airtightness (class 4 for EPB). Combined doors with all four certifications are the most practical and legally sound solution. Manufar provides all required documentation for architects, developers and property managers.
More standards than for a regular home
An apartment entrance door sits at the intersection of private and shared use. This makes it legally and technically more complex than a regular front door. It must simultaneously keep burglars out, compartmentalise fire, dampen sound and support the building's EPB performance. Unlike a single-family home, all of these requirements are legally established in Belgium for apartment buildings.
Burglary resistance: RC2 as a minimum
The European standard EN 1627 also applies to apartment doors. RC2 is the absolute minimum: three minutes of resistance against basic tools. We recommend RC3 for apartments in urban environments or buildings with shared entrances that aren't permanently supervised. A certified cylinder (SKG***) is a requirement in both cases.
Fire resistance: EI30 or EI60 mandatory
Belgian fire safety legislation (Royal Decree on Basic Fire Prevention Standards) requires EI30 for doors between each apartment and the common corridors. In buildings taller than 10 metres, EI60 is required. In healthcare facilities and care homes, EI60-S (with smoke tightness) sometimes applies. Your municipality's fire prevention advisor and your architect determine the exact requirement based on the building permit application.
Sound insulation: what does Belgian standard say?
The Belgian acoustic standard NBN S 01-400-1 sets a minimum of 35 dB (Rw) for airborne sound insulation between apartments. In practice, developers and residents often opt for Rw 42 to 52 dB for greater living comfort. Our apartment doors achieve Rw 42–47 dB as standard; higher performance levels are available up to Rw 55 dB.
Airtightness and EPB performance
Apartment doors are factored into the building's EPB calculation. Class 4 airtightness (per EN 12207) is the standard requirement. Our doors come equipped as standard with automatic drop-down thresholds that seal the threshold hermetically when closed, and with continuous perimeter seals for optimal performance.
Combined certification: one door, all certificates
Most architects and developers choose a combined door that unites all required performance levels in one product: EI30 + RC2 + Rw 42 dB + class 4 airtightness. You receive a single compliance document that proves all required performance levels — ideal for the permit application and the EPB declaration.
Who is responsible: developer, property manager or resident?
For new-build projects, the developer is responsible for compliance at handover. For renovation or replacement of an existing door within a co-ownership, the General Assembly decides. We support architects, property managers and developers with technical advice, test reports and compliance certificates for all relevant standards.
Conclusion
A proper apartment entrance door requires a combination of burglary resistance, fire safety, acoustic performance and EPB compliance. Manufar supplies combined doors with all required certificates — for private individuals, developers and property managers. Request a free consultation or quote.