Eaves trays are to protect the felt from uv rays, and stop it disintegrating and allowing water to run over the fascia.
if the problem is coming from a wall abutment etc, this needs sorting first, eaves trays will not cure a defective/leaking roof.
I’ve not seen eaves trays inserted into mortared undercloaks, for example, but I’m sure some have done this. Why not have a walk and see what other folk have done, if you want alternative suggestions.
if the problem is coming from a wall abutment etc, this needs sorting first, eaves trays will not cure a defective/leaking roof.
I’ve not seen eaves trays inserted into mortared undercloaks, for example, but I’m sure some have done this. Why not have a walk and see what other folk have done, if you want alternative suggestions.