European Assessment Document (EAD) for I-Joists
EAD 130367-00-0304 – Composite Wood-based Beams and Columns
Each construction product approved for use in the UK and EU must be accompanied by a Declaration of Performance (DoP). This is the manufacturer’s statement about the integrity of the product. More
To make sure this is accurate and reliable, the product must be independently assessed under System 1 of the official Assessment and Verification of Constancy of Performance (AVCP) requirements in the CPR or the UK-CPR. Here is more on AVCP tasks.
As there is no official standard for I-joists, the assessment process is slightly different. Manufacturers apply for a European Technical Assessment (ETA). The EAD is the official means of enabling a performance assessment to be made so that products can be CE approved (this continues to be recognised in the UK until 2023). Download the complete EAD.
A UK TAD (UK Technical Assessment Document) is pending and will be based on the same EAD as soon as it has been agreed.
Key EAD Building Requirements
‘Aspects of natural durability’ are included with four of the official seven Basic Requirements for Construction Works (BRCW) listed in the EU-CPR and the UK-CPR. Download APA Factsheet on I-joists including guide to essential characteristics set down in the EAD.
- BRCW 1: Mechanical resistance and stability
- BRCW 2: Safety in case of fire
- BRCW 3; Hygiene, health and the environment
- BRCW 6: Energy, economy and heat retention
- Other criteria: Aspects of durability
For general moisture content parameters, refer to Service Classes 1 and 2 in Eurocode 5 ((BS) EN 1995-1-1) or take a look here. For earthquake zones, there is specialist design guidance in Eurocode 8 ((BS) EN 1998-1 clauses 1.5.2 and 8.1.3).
