Hi All,
Making a small (~1.3m) opening in an internal load bearing wall that is supporting the ceiling/loft floor/centre of roof in a bungalow.
I have some approved plans which include a pair of 47x200 beams bolted together (fixed under the original wall plate), supported at one end by a 100 x 100 C26 post to be resin anchor bolted to the corner of a (decommissioned) chimney breast with the required 40mm gap. (So the wall being removed extends from the RH side of the breast). Post inspection the post (and beam) to be clad with 30min fire res plasterboard.
Pretty basic question, how is the 40mm gap 'usually' achieved please? I asked BC for general guidance and got a blunt 'you'll need to talk to the Engineer'.
(Doing that is not simple for reasons I won't bore you with, but I may have to go there I guess).
Obviously I can't use wooden blocks, did wonder about a stack of fire res pb local to the anchor point but that seems a crush risk espec when cranked tight against the scabby brickwork. This must be a daily occurrence but have not found any go-to solution online, would appreciate any suggestions please (including how I then fill the remaining void with fire resistant material if that's an unwritten expectation, as opposed to the specified single layer and a 30mm air gap, it's not clear).
And while I have your attention
at the other end of the short beam it keys into the existing wall with no specified bearing method/padstone requirement.
There's a 70mm gap down to the next brick course - again asked BC what they would expect to see e.g. trim down a brick to say 50mm with 10mm mortar top and bottom; again, 'talk to the...'. Well the Engineer didn't think it was important enough to specify it. Is this a particular BCO who can't just give a bit of advice (as their terms suggest they can) in respect of good practice? When they come to inspect and there's no detail on the drawing, against what do they assess what's been done?
Cheers for any help.
AS
Making a small (~1.3m) opening in an internal load bearing wall that is supporting the ceiling/loft floor/centre of roof in a bungalow.
I have some approved plans which include a pair of 47x200 beams bolted together (fixed under the original wall plate), supported at one end by a 100 x 100 C26 post to be resin anchor bolted to the corner of a (decommissioned) chimney breast with the required 40mm gap. (So the wall being removed extends from the RH side of the breast). Post inspection the post (and beam) to be clad with 30min fire res plasterboard.
Pretty basic question, how is the 40mm gap 'usually' achieved please? I asked BC for general guidance and got a blunt 'you'll need to talk to the Engineer'.
(Doing that is not simple for reasons I won't bore you with, but I may have to go there I guess).
Obviously I can't use wooden blocks, did wonder about a stack of fire res pb local to the anchor point but that seems a crush risk espec when cranked tight against the scabby brickwork. This must be a daily occurrence but have not found any go-to solution online, would appreciate any suggestions please (including how I then fill the remaining void with fire resistant material if that's an unwritten expectation, as opposed to the specified single layer and a 30mm air gap, it's not clear).
And while I have your attention
at the other end of the short beam it keys into the existing wall with no specified bearing method/padstone requirement.There's a 70mm gap down to the next brick course - again asked BC what they would expect to see e.g. trim down a brick to say 50mm with 10mm mortar top and bottom; again, 'talk to the...'. Well the Engineer didn't think it was important enough to specify it. Is this a particular BCO who can't just give a bit of advice (as their terms suggest they can) in respect of good practice? When they come to inspect and there's no detail on the drawing, against what do they assess what's been done?
Cheers for any help.
AS
