Chimney Breast Removal

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15 Nov 2016
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Hi
I'm wanting to remove my ground floor chimney breast in a 1920's built semi detached property. This breast is wider and deeper than the one in the bedroom above (had a back boiler). My structural engineer has calculated a RSJ to sit under the bottom of the bedroom chimney breast and recommended a rectangular metal plate sits on the beam to cover the hole and provide some support to the sides.
A builder has been out and said a few of the joists in the bedroom may be sitting on the chimney breast. If this is the case he said he would extend them to sit on the RSJ. Is this good practice?
The RSJ is calculated at 203x133x25
Any advice would be appreciated
 
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If the SE has included that in his calculation go for it. If not, it's probably still fine.
 
OP,

A whole bunch of information is missing from your post.
Why dont you post pics of the bedroom c/breast, the bedroom floorboards, and the c/breast in the living room?
What is the span of the back wall behind the chimney breast - and what is the proposed length of the lintel?
Is the idea to have the lintel below the living room ceiling or will it be concealed in the bedroom floor?
Joisting round a 1920's c/breast will almost certainly be trimmed around it - Regs prohibiting joist tails resting in c/breasts have been in force for many years prior to 1920.
 

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