Vaulted ceiling steel ridge beam edge insulation
Hi everyone, we are building a great room with vaulted ceiling in it. The roof will be supported by a steel ridge beam resting on steel posts at ends.
Exterior sheeting will have R5 insulation and we will have vapour barrier on the interior side.
Our walls will be R27 overall and ceiling will be R60.
Do you think having R5 on the edge of the steel ridge beam is enough to stop thermal break and prevent condensation on the ridge beam or should we have more insulation added between exterior sheeting and the edge of the beam?
I’ve attached the detail drawing and elevation indicating detail location.
EDIT: we are in Toronto, Canada area. The walls usually have between R20 and R27 insulation requirements. Vaulted ceiling has R31 requirement min.
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