Home DIY

Current mini-project for me at the moment is (re-)doing the insulation in our loft conversion.

It turns out that the reason for the room being brass monkeys over the past few weeks is because 1) the existing insulation in the eaves has blown out of the studs, and 2) there's basically no insulation between the soffit and the inner storage wall.

Plan is to

1. tape up the PIR in the kneel wall, and skin with 9mm OSB3
   
2. add another layer of rock wool in the eaves behind the kneel wall
   
3. add baffles to make sure there is still ventilation above the rock wool
   
4. 50mm PIR between the rafters in the storage space (where there is currently nothing), leaving 50mm ventilation above
   
5. another 50mm PIR layer below that
   
6. skin ceiling with 9mm OSB3
   
   

(Picture doesn't show it, but there is a soffit)