Section Contents

 European Technical Approval Guideline (ETAG) 011

ETAG 011 – Guideline for European Technical Approval of Light Composite Wood-based Beams and Columns. http://www.eota.eu/en-GB/content/etags-used-as-ead/26/.

There is no harmonised European standard for I-Joists so manufacturers have to make an application for a European Technical Assessment (ETA) which measures a specific I-joist against test requirements laid down in a European Assessment Document (EAD) or a European Technical Approval Guide (ETAG).

The testing process:

  • The assessment is carried out by a Technical Assessment Body (TAB) which then issues the ETA to the manufacturer.
  • The manufacturer first defines the end use application for the I-Joist.
  • Manufacturer and TAB then jointly decide which essential characteristics are relevant to the specific I-joist for this end use application.
  • Appropriate tests are then written into the EAD/ETAG which have to be passed.

Construction works into which the I-joists are to be incorporated must comply with Essential Requirements (known under the CPR as Essential Characteristics) and Methods of Verification as laid down in the Construction Products Regulations.  For full details refer to ETAG 011, chapter 4.

Product performance categories to be assessed are:

      • Mechanical resistance and stability including stiffness, creep, duration of load and dimensional stability.
      • Seismic evaluation (for seismic areas only).
      • Safety in case of fire, both reaction and resistance.
      • Hygiene, health and environment including release of dangerous substances.
      • Energy economy and heat retention including thermal bridging.
      • Aspects of durability, serviceability and identification.
Guidance for the Assessment of the Fitness for Use (ETAG section 2)

While the ETAG provides the overall assessment process, the manufacturer has responsibility for deciding which tests will be relevant to their products by:

  • Defining the specific product for which they are seeking a European Technical Assessment (ETA) and how it is to be used in construction works.
  • Deciding on the scale of assessment that the specific product needs to satisfy.

The assessment of an I-Joist’s fitness for purpose has three main elements:

  • Clarification of the specific requirements for the works into which the I-Joist is to be incorporated.
  • Physical assessment and judgement methods to be used.
  • Assumptions and recommendations which may or may not be applicable in every case.  
Attestation and Evaluation of Conformity  (now System of Assessment and Verification of Constancy of Performance)  (ETAG section 3)
  • Under the new Construction Products Regulation, this is now known as the System of Assessment and Verification of Constancy of Performance (AVCP). Construction products assessed under ETAG 011 are clarified under System 1.
  • System 1 is officially defined as product certification comprising:  ‘the issuing, restriction, suspension or withdrawal of a certificate of constancy of performance on the basis of testing, calculation, tabulated values or descriptive documentation, initial inspection of the manufacturing plant and of the factory production control, continuing surveillance of the latter by a notified product certification body.’
  • System 1 allocates specific tasks to both manufacturer and notified body and covers the documentation to be produced as well as the required CE marking information.
  • At this point, if all the criteria have been satisfied, the approved certification body will then issue a ‘Certificate of Conformity’ for the I-Joist. This gives authority to the manufacturer to draw up their Declaration of Performance and to fix the CE mark to their product.
Content of the European Technical Assessment  (ETAG section 4)
  • Having issued the Certificate of Conformity, the approval body will then issue the European Technical Assessment (ETA) document to the manufacturer.  The format and check list for the approval body to follow when producing the ETA can be seen in ETAG011, Chapter 9.

Other useful sections in ETAG 011 are:

      • Verification methods used to determine the various aspects of the I-Joist’s performance (5/6).
      • Guidance on the assessing and judgement methods used to confirm the I-Joist’s fitness for its intended use (6).
      • Assumptions and recommendations for design, installation and execution, packaging, transport and storage, use, maintenance and repair under which the assessment of the fitness for use according to the EATG can be made (7).

APA in Europe Wizard

Close
All Questions OSBPlywood

What is a ‘life cycle stage’ and how do these link to the environmental assessment of whole buildings?

How do core category rules link with environmental product declarations?

Whose responsibility is it to check that wood products being imported into the EU do not originate from illegally sourced timber supplies?

Does the EUTR require mills to provide any extra documentation for customs entry into the European Union?

Must all plywood and OSB panels carry a CE marking?

What is the definition of a construction product under the CPR?

What is a Declaration of Performance referred to under the Construction Products Regulation?

What is the difference between Structural 1 and Exposure 1?

Does structural panel siding have shear values?

What are mould and mildew, and do they compromise the integrity of engineered wood?

The CE-mark on an APA plywood panel means it conforms to European Standards – but which ones?

I want to use a Rated Sheathing panel for flooring/ roofing application, what info do I need to know?

Plywood: Span rating
OSB: Span rating

What extra strength benefits do Structural 1 OSB panels provide over standard Rated Sheathing panels?

Do APA panels give off formaldehyde?

Plywood: Formaldehyde
OSB: Formaldehyde

What is the difference between a touch-sanded panel and sanded panel?

I’d like to know how APA veneer grades match those given in the European standards

How do I correctly gauge the face appearance a plywood Siding panel?

I want to specify an APA panel for concrete formwork – what do I need to know?

Are APA panels tongue and grooved on all four edges?

I am not familiar with the term ‘Sized for Spacing’ – what is its significance?

How are Performance Category and thickness related?

I’d like to know more about a panel’s Span Rating and how it links to thickness.

Plywood: Span rating
OSB: Span rating

What is Span Rating on the APA trademark and why is it important?

Plywood: Span rating
OSB: Span rating

What is the difference between Exposure 1 and Exterior plywood panels? What are their appropriate uses?

What are the main OSB panels likely to be available in Europe?

What are the main plywood panels likely to be available in Europe?

What are the main European standards that I would need to be aware of for OSB panels?

The main standards are: EN 13986 and EN 300

What are the main European standards that I would need to be aware of for plywood panels?

The main standards are: EN 13986, EN 636, EN 314, EN 635-3