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Help - remarkably elusive information needed please..
What is the minimum period of fire resistance which has to be achieved for green oak beams and joists in a new build detached dwellinghouse ?
The house has 3 storeys ie basement, GF and first floor. The basement is 3 metres from its floor to finished floor level (on concrete beam and block ) of GF. The GF is then 2.8 metres from its floor to finished floor of 1st floor top storey. The 1st floor is then 5 metres from its finished floor level up to apex of roof in open vaulted ceiling arrangment.
The green oak beams are part of the load bearing walls on the ground floor and the green oak joists span between those major beams to form the floor for the 1st floor.
There are no other buildings nearby let alone attached etc.
I understand that full structural calculations will be needed but the immediate issue is what is the correct figure for fire resistance allowance for those beams and joists.
Many thanks to anyone who can tell me that figure - cannot approach over zealous Council dept at this stage .
What is the minimum period of fire resistance which has to be achieved for green oak beams and joists in a new build detached dwellinghouse ?
The house has 3 storeys ie basement, GF and first floor. The basement is 3 metres from its floor to finished floor level (on concrete beam and block ) of GF. The GF is then 2.8 metres from its floor to finished floor of 1st floor top storey. The 1st floor is then 5 metres from its finished floor level up to apex of roof in open vaulted ceiling arrangment.
The green oak beams are part of the load bearing walls on the ground floor and the green oak joists span between those major beams to form the floor for the 1st floor.
There are no other buildings nearby let alone attached etc.
I understand that full structural calculations will be needed but the immediate issue is what is the correct figure for fire resistance allowance for those beams and joists.
Many thanks to anyone who can tell me that figure - cannot approach over zealous Council dept at this stage .