I'm considering knocking a 1.5m wide opening in an internal 4.5" brick wall between the kitchen & dining room.
The wall continues upwards dividing the bedroom & bathroom and into the roof-space level with the bedroom / bathroom ceiling joists..... with the exception of a few bricks 6 courses high that support a horizontal roof truss (presumably this is defined as a supporting wall). The house is a semi with a pyramid shaped roof.
Do I need to a steel I section RSJ or a steel reinforced concrete lintel?
The wall continues upwards dividing the bedroom & bathroom and into the roof-space level with the bedroom / bathroom ceiling joists..... with the exception of a few bricks 6 courses high that support a horizontal roof truss (presumably this is defined as a supporting wall). The house is a semi with a pyramid shaped roof.
Do I need to a steel I section RSJ or a steel reinforced concrete lintel?