You are a planner, architect or developer?

Here is some useful information on plastic windows and quality and testing. Our Annual Reports can be viewed here.

Are you a window manufacturer?

This is where you can find out more about quality-assured plastic window profile systems and components as well as a brief overview of the relevant guidelines, ordinances and laws.

Are you a member?

This is where we tell you about planned meetings of the expert groups and provide agendas and minutes for you to download. We have also collected information about our projects in this area.

About us

RAL-Gütegemeinschaft Kunststoff-Fensterprofilsysteme e.V. (GKFP) is an association that performs and provides neutral and external quality monitoring and product certification for its member companies in the form of voluntary self-regulation. Its aim is compliance with the highest product quality standards in order to ensure the lasting fitness for use of the manufactured products. Products that are certified by the GKFP are allowed to carry the RAL quality mark and be used as components for such products. Opens internal link in current windowmore about us

News

27.05.2019

General Assembly meeting 2019 - Save the Date 2020

The General Assembly 2020 will take place on 12 May 2020 in Mannheim. In 2019...[more]


27.05.2019

New paper of the greenhouse potential of window frames

The Quality Association for Plastic Products (QKE) publishes a paper on the...[more]


21.03.2019

Brochure "PVC windows" published in German magazine Familienheim und Garten

Our new brochure "Fenster fürs Leben" has been published as a specialist...[more]