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Fire Retardant MDF

Thoroughly tested medium density fibreboard panels for use in public buildings where fire retardant panels are required by building regulations.

Fire Retardant MDF is suitable for use in internal dry conditions for non-structural applications; ideal for applications such as wall linings, partitions, display panels and so on.

The product is available in a range of thicknesses with either a Euroclass B or C fore rating in accordance with European Standards. The boards also carries 60 minute (Euroclass B) and 30 minute (Euroclass C) fire ratings under BS 476: Part 22: 1987 for use as an internal wall partition.

Typical Applications
  • Public buildings
  • Exhibitions
  • Wall Linings
  • Partitions
  • Display Panels
  • Ceilings
Applicable Standards
  • EN ISO 11925 – Ignitability test.
  • BS EN 13501-1 – Single Burning Item Test.
  • BS EN BS 476: Part 22: 1987 – Fire rating when used as partition walls.
  • BS EN 622-1 – Fibreboards Specifications: General Requirements
  • BS EN 622-5 – Fibreboards Specifications: Requirements for Dry Process Boards (MDF)
  • European Class B/C Fire Ratings
Environment

Hanson Plywood sources its collection of Fire Retardant MDF Panels from FSC® & PEFC™ Certified forest concessions. The company’s robust Chain of Custody management system ensures that these certifications are respected and adhered to throughout the supply chain. For further information, please refer to our Environment Page.

The panels also emit extremely low levels of formaldehyde and can be purchased as CARB Phase 2 compliant. This means the product’s emission level is tested by the California Air Resource Board to meet a permissible level lower than that which is dictated by the European Standards (E1 under EN 717-2).

Quick Reference Guide – Fire Ratings

A request we commonly receive is that for a panel with a 1 hour or ½ hr fire rating.

30 or 60mins relates to the concept of Fire Resistance and typically relates to the ability of an elevation or door to withstand the passage of a fully developed fire for said amount of time.

Euroclass relates to the concept of Reaction to Fire and focuses on initial fire growth phase. A Euroclass rated panel may form part of a fire barrier system requiring 30 or 60 mins Fire Resistance overall. We recommend that suitability of a Euroclass rated panel within the design is based upon 3rd party assessment or independent testing specific to the project in question.

There are 7 Euroclass classifications ranging from A1 to F. In line with the Construction Products Regulation (2013) each Euroclass rating requires testing against the relevant European fire test methods – see table below.

Hanson Plywood offer a range of panels manufactured with an A1 rating (see below). Untreated wood-based panels such as plywood, OSB, MDF & Chipboard typically achieve a Euroclass D or E rating. Fire rated panels can be supplied to a Euroclass B or Euroclass C fire performance as required depending upon regulatory requirements.

Class
Performance description
National Class (England & Wales)
National Test Standard (England & Wales)
A1
BS EN ISO 1182
BS EN ISO 1716
Non-combustible
BS 476: Part 4
A2
BS EN ISO 1182
BS EN ISO 1716
BS EN 13823
Limited combustibility
BS 476: Part 11
B
BS EN 13823
BS EN 11925-2
0
BS 476: Part 6
BS 476: Part 7
Bfl (Flooring only)
EN ISO 9239-1
EN ISO 11925-2
N/A
N/A
C
BS EN 13823
BS EN 11925-2
1 & 2
BS 476 : Part 7
D
BS EN 13823
BS EN 11925-2
3
BS 476: Part 7
E
BS EN 11925-2
4
BS 476 : Part 7
F
No performance determined
Unclassified
No Test
Quick Reference Guide - MDF

Please note: Under EN 622-5, ‘General Purpose’ refers to products suitable for ‘use in non load-bearing applications’.

Trade Term
Class
Typical Average Density
Application & Climatic Condition
Use Class (EN 335)
General purpose joinery
Simple designs with minimal profile
Humid Conditions
Architectural mouldings - skirting architraves
Deep routed profiles (e.g. membrane pressed PVC doors)
Designs with advanced deep routed profiles and painted finishes
Standard
MDF
700 Kg/m3
General purpose boards for dry conditions
Use Class 1
Yes
Yes
Yes
Trade
L.MDF
625 Kg/m3
Light MDF boards for dry conditions
Use Class 1
Yes
Yes
Ultralight
UL2.MDF
520 Kg/m3
Ultra-light MDF boards for dry conditions
Use Class 1
Yes
Yes
Moisture Resistant
MDF.H
720 Kg/m3
General purpose boards for humid conditions
Use Classes 1 & 2
Yes
Yes
Yes
Yes
Exterior
MDF.H-2
770 Kg/m3
General purpose boards for exterior conditions
Use Classes 1,2 & 3
Yes
Yes
Yes
Yes
Yes
Yes
Size
6mm
9mm
12mm
15mm
18mm
25mm
Grade
B
C
B
C
B
C
B
C
B
C
B
C
2440mm x 1220mm
3050mm x 1220mm
Want to know more about Fire Retardant MDF? Simply fill out our Quick enquiry form or call us on 01422 330 444