How to choose suitable foam thickness?

The standards determining building energy efficiency have become increasingly more strict because of environmental protection and therefore, when building a new construction, it is important to remember to maintain the suitable thickness of insulation materials, in accordance with applicable standards and regulations.
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Where can Purios foam be used?
Can polyurethane foam be used to insulate a whole building?
Are there any places where Purios foam cannot be used?
Can it be used both in new and old buildings?
How to choose suitable Purios foam?
In what weather conditions can you lay Purios foam on the outside?
Do weather conditions influence the application of foam inside buildings?
Can the wall with foam be plastered on the outside?