The conformity assessment process for construction products is strict and requires precision. Based on our extensive experience as a notified body and a testing laboratory, we have identified several recurring mistakes that can delay the process or increase its cost for manufacturers and importers.

Here are the most common ones and how to prevent them:

1. Incomplete or missing technical documentation.
Often, manufacturers submit a testing application without having prepared a complete technical file for the product. To ensure a smooth process, it is essential to prepare technical specifications, drawings, a description of raw materials, and instructions for installation and use in advance.

2. Improper selection of test samples.
The samples provided to the laboratory must be fully representative of the serial production. Submitting specially made “improved” samples can lead to invalid results and problems during subsequent market surveillance.

3. Lack of an implemented Factory Production Control (FPC) system.
The CE marking is not just a result of testing. It requires manufacturers to have and maintain a documented control system that ensures consistent product quality. The absence of such a system is direct grounds for denial of certification.

4. Incorrect interpretation of the applicable standard.
Sometimes, a product is tested against a standard that does not fully correspond to its intended use. This renders the results and the CE marking invalid for the specific construction project.

Our advice: Before starting any procedure, schedule a preliminary consultation with us. A short meeting can save you months of delays and unforeseen costs.