9. Conclusion

Figures 6 to show the various "qualitative modes" relating to the phenomena of "water vapour migration through a multilayer wall".

This presentation constitutes the theory governing the complex phenomena of water vapour migration through materials commonly used in construction. This qualitative approach to water vapour migration can be quantified.

All that remains now is to :

• quantify them ;

• analyze them ;

• to summarize them.

To move from theory to practice, the