Dach z płytą PIR: Jak nie zepsuć izolacji i uniknąć grzyba w wełnie (część 2)

This is the second part of our series on roof tightness! In this episode, we conclude the topic of interior layers. The engineer shows how to wisely plan the installation of a vapor barrier membrane on partition walls (regardless of whether they're plasterboard or brick) and why gable wall insulation is an absolute must-have to avoid thermal bridges. Can PIR boards be combined with mineral wool? How should PIR be installed, over the rafters, between the rafters, or perhaps under? I explain why some popular ideas are a recipe for rotten mineral wool and a ruined roof! What material do you have or plan to use for your roof insulation? Mineral wool, foam, or PIR board? [SELF-PROMOTION] 👉 Check out my store: https://pasywnysklep.pl/ This is an online store with passive house products that I use on my own projects and which are featured in episodes on the Build with an Engineer channel. 0:00 Introduction 0:21 Partition walls and foil: how to improve airtightness? 2:20 Thermal bridges on gable walls: why do you need to insulate them? 3:50 PIR board on the roof: why is it airtight and diffusion-proof? 5:07 Correct installation: PIR board on top of rafters on full boarding 6:01 WARNING: PIR board from the outside + wool between rafters (masonry disaster) 10:58 The problem of wood drying out: Why does PIR between rafters lose its airtightness? 12:14 How to correctly and safely install PIR between and under rafters? 2:20 PM Summary and preview of the next episode #buildingahouse #panelboard #roofinsulation #airtightness #passive WATCH PART 1:    • Dach warstwa po warstwie: szczelność powie...