Sometimes, it is not clear why in some countries an application of cellular glass is allowed and in others not. In some cases, lobbying of competitive products could be the reason. In order to get a fairplay, Europe generates European Assessment Documents (EAD), which are able to overrule the local laws. They are defined as follows:
The European Assessment Document (EAD) is the documentation of the methods and criteria accepted in EOTA as being applicable for the assessment of the performance of a construction product in relation to its essential characteristics. The EAD is developed in all cases where the assessment of a construction product is not or not fully covered by a harmonised technical specification (Regulation (EU) No 305/2011).
It contains, at least,
- a general description of the construction product and its intended use (Chapter 1 – Scope),
- the list of essential characteristics relevant for the intended use (Chapter 2) and
- methods and criteria for assessing the performance of the product (Chapter 2),
- principles for the applicable factory production control (Chapter 3 – AVCP).
This EAD is an extension of EN13167 with the following:
Moreover, it covers in the following paragraph the GLAPOR RDS system:
In this way, the GLAPOR RDS system cannot be blocked anymore by lobbying competition in a few countries. The RDS-blocks are typical edge modules with the same chemical composition as single boards and even the used cellular glass gravel.