Simple Loft Conversion - Method to remove tie without walls splaying.
Simple Loft Conversion - Method to remove tie without walls splaying.
(OP)
I'm assuming this will have a simple answer but I just want to get an engineers advise. I will consult a local S.E when it comes to building regs but just looking for some preliminary advise / ideas before submitting the planning application.
I'm working on a loft conversion however head height is extremely tight (1935mm). I have attached a section that I have sketched the structure over the top of. The steel (binder?) beams - positioned below the studs - I have allowed to be whatever size they need as these wont effect the head height. I have sized the joists at 195mm (ideally I was hoping to reduce this to 150mm). I am conscious that I am removing the existing joists (to lower the ceiling) and a tie (as can be seen in the attached photo). I'm assuming this will cause the walls to splay outwards. I therefore assume I need to introduce some sort of beam running from eaves to eaves to prevent the walls from doing so but I'm worried this will effect head height. I know in older houses they used to use the metal bar anchor plates - Would this be a solution?
Section Sketch:
http://files.engineering.com/getfile.aspx?folder=8...
Plan Sketch:
http://files.engineering.com/getfile.aspx?folder=3...
Image One:
http://files.engineering.com/getfile.aspx?folder=8...
Image Two (showing tie to be removed):
http://files.engineering.com/getfile.aspx?folder=5...
I'm working on a loft conversion however head height is extremely tight (1935mm). I have attached a section that I have sketched the structure over the top of. The steel (binder?) beams - positioned below the studs - I have allowed to be whatever size they need as these wont effect the head height. I have sized the joists at 195mm (ideally I was hoping to reduce this to 150mm). I am conscious that I am removing the existing joists (to lower the ceiling) and a tie (as can be seen in the attached photo). I'm assuming this will cause the walls to splay outwards. I therefore assume I need to introduce some sort of beam running from eaves to eaves to prevent the walls from doing so but I'm worried this will effect head height. I know in older houses they used to use the metal bar anchor plates - Would this be a solution?
Section Sketch:
http://files.engineering.com/getfile.aspx?folder=8...
Plan Sketch:
http://files.engineering.com/getfile.aspx?folder=3...
Image One:
http://files.engineering.com/getfile.aspx?folder=8...
Image Two (showing tie to be removed):
http://files.engineering.com/getfile.aspx?folder=5...






RE: Simple Loft Conversion - Method to remove tie without walls splaying.
RE: Simple Loft Conversion - Method to remove tie without walls splaying.
Mike McCann, PE, SE (WA)