Hi all,
Currently embarking on a self build project. Currently wind and watertight and in the process of insulating.
The house is very exposed and will continue to experience terrible weather. Likely the one of the worst places in the country for wind!
I have a continuous fascia vent all around the house but I have noticed during bad storms that the rain literally drives in. So much so that there will be a puddle on the floor.
Its a 1 and ¾ storey house.
I have attached a picture and I shall try to explain….Rafters will have 50mm air gap then 170mm PIR. This will lead down to the eaves where it will meet the PIR heading ‘up’ the wall. The PIR on the wall will be flush with the OSB.
My concern is the water driving in and lying there, with the ends of the rafters soaking it up, and may end up leaking down the wall PIR and rotting out (eventually) the OSB.
Is this fine as the air gap will ensure it keeps drying out or do I have a legitimate concern? When the wind and rain drives in it puddles on the soffit boards.
Is there anything I can / should do?
