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- 18 Oct 2018
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Hello. I wonder if you could help with a question to see if I need to invest in a Structural Engineer and progress with a small project
Situation:
Questions - in practice do I need to sister the joists either side of the cut joists? Would building control insist?
Do the answers change if the structural opening is next to a brick supporting wall, changing spans?
Would be very grateful for any pointers -if an SE and/or Building control are likely to insist sistering is needed, I'll put it on the back burner . Many thanks in advance.
Situation:
- three storey house
- no access hatch
- joists at 16 inch centres
- Joist span c. 3720mm/12' 2"
- Want to create structural opening c 860mmx860mm, requiring trimming of one joist for energy efficient access hatch
Questions - in practice do I need to sister the joists either side of the cut joists? Would building control insist?
Do the answers change if the structural opening is next to a brick supporting wall, changing spans?
Would be very grateful for any pointers -if an SE and/or Building control are likely to insist sistering is needed, I'll put it on the back burner . Many thanks in advance.