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Flat roofs are a complex structure in frame house building, which raises many questions. At the Framer Fest festival of frame house building masters, a flat roof solution with a diffusion-closed layer on the outside and insulation in the rafter area was presented. The pro clima INTELLO PLUS membrane with variable sd is used as a vapor barrier. The peculiarity of the membrane is that in winter it becomes diffusion-closed with sd up to 25 m. Thus, it protects the structure from steam penetration. In summer, on the contrary, it is more diffusion-open (sd about 0.25 m), which creates optimal conditions for reverse drying. Even if moisture has penetrated the structure, it can dry out over the summer. Why full insulation of rafters with additional insulation along the rafters is the optimal solution, we tell at the seminar, the recording is at the link: • Flat roof. Performance at the festival... You can also find additional information on this topic at the links: Article Diskurs 3: Flat roofs in wooden construction with insulation between the rafters https://50pascal.ru/upload/medialibra... Service for calculating the reliability of a flat roof structure: https://myroof.50pascal.ru ☎️ 8 800 600 54 56 (free call) 📞+ 7 967 375-04-22 (WhatsApp, Telegram) +7 960 525 54 55 (for WhatsApp and Telegram) 📧 [email protected] 🌐 50pascal.ru