Hi,
While the roof part of the dormer is ongoing (https://www.diynot.com/diy/posts/5859047/), I didn't manage to get the slates finished before 6+ inches of snow got dumped on everything. I hope the breather membranes can take a little bit of snow and ice before installation completes!
Aside from that, I'm thinking about the actual dormer walls as well, and how to insulate them. The studs making up the walls are simple 50mm posts, so as far as I know, I can't even put anything in between them as that would leave zero airgap to the outside and definitely lead to condensation and rot, right? It feels like the only feasible option is to cover both dormer walls with 25mm PIR (can't go any more than that as too much loss of space plus it would make the window look weird as it is a bay window, not a flat one). The PIR is probably necessary anyway because the bottom half of the wall has the posts sitting on two large rafters, so can't insulate between those!
Any advice on this?
While the roof part of the dormer is ongoing (https://www.diynot.com/diy/posts/5859047/), I didn't manage to get the slates finished before 6+ inches of snow got dumped on everything. I hope the breather membranes can take a little bit of snow and ice before installation completes!
Aside from that, I'm thinking about the actual dormer walls as well, and how to insulate them. The studs making up the walls are simple 50mm posts, so as far as I know, I can't even put anything in between them as that would leave zero airgap to the outside and definitely lead to condensation and rot, right? It feels like the only feasible option is to cover both dormer walls with 25mm PIR (can't go any more than that as too much loss of space plus it would make the window look weird as it is a bay window, not a flat one). The PIR is probably necessary anyway because the bottom half of the wall has the posts sitting on two large rafters, so can't insulate between those!
Any advice on this?
