For the guideline, see:
User guideline on wood preservatives
Federal ministry for food, agriculture and consumer protection
(Bundesministerium für Ernährung, Landwirtschaft und Verbraucherschutz; BMELV)
Theoretical claim and practical implementation using 5 truss examples
All bearing and supporting wood components - in particular, this includes the truss as an essential element of a building system - are subject to building authority regulations and must be protected from dangers originating from wood-destroying insects and fungi. The how and what of it, however, are subject to discussion. Concerns arise often where only building-construction measures are suggested.
The interactive PDF presentation "DIN 68 800 - Wood protection" presents concerns using five truss examples and makes suggestions for safety, as required by planners, craftsmen, construction supervisors and clients. No matter which path is taken, practicality, sustainability and economic factors always play a part as well.
The following link takes you to the website of the Gütegemeinschaft Holzschutzmittel e.V., where the file can be downloaded.
To make it easier for planners, builders and executing persons to draw up tender specifications, a team of experts from the industry and federations compiled some tender specification texts.
The following link will open the website of the Gütegemeinschaft Holzschutzmittel e.V., where the text components can be downloaded from a word file.