Removing Rsj

[handyman11]

If an rsj is already in place, for example if the kitchen at the back of a semi detached house has been extended to the side by taking out part of the side wall on ground floor, is it possible for the supporting rsj to be removed and replaced if you wanted to do a back extension and needed a longer different steel? I can't seem to find any info on if this is possible. I.e. how can this be done without the walls above falling down before you get props in?

Likewise, if a semi detached house had already had the back of the house opened up, first with a steel for the back reception room for a conservatory and then later by removing the back wall in the kitchen for a small extension, is it possible to replace both of these with one long one. The reason would be in order to take out the wall in between the kitchen and reception room along with the pillar that both steels sit on. Can it be done?

Thanks.

 

[mikeey84]

Yes. You stop the wall falling by inserting supports into the wall above the beam at specific distances apart, both sides of the wall

 

[Leofric]

I would get somebody to actually do it who knows what they are doing

 

[handyman11]

Thanks for the replies. So it is possible. How do the supports work and does it matter that the brick wall above is an external wall / back of the house, in terms of putting supports in from that side also?

 

[Notch7]

Thanks for the replies. So it is possible. How do the supports work and does it matter that the brick wall above is an external wall / back of the house, in terms of putting supports in from that side also?

Acrows with strong boys externally, Internally acrows but -it depends on which way joists go and how they are fixed.

Alternatively needles are used, but they will cause disruption to upstairs wall and floor.

Genie lift LM10 type maybe with fork extensions.

 

[bobasd]

OP,
keep it simple, first determine if the first floor joists are sitting in your wall?
and given that you might have a cavity wall then go for needles supported by acrows.

if you are at all uncertain or come across problems then sack it and call in pro help.

 

[handyman11]

OP,
keep it simple, first determine if the first floor joists are sitting in your wall?
and given that you might have a cavity wall then go for needles supported by acrows.

if you are at all uncertain or come across problems then sack it and call in pro help.

What are implications if joists are sitting on the wall above the existing rsjs or Not?

 

[handyman11]

Acrows with strong boys externally, Internally acrows but -it depends on which way joists go and how they are fixed.

Alternatively needles are used, but they will cause disruption to upstairs wall and floor.

Genie lift LM10 type maybe with fork extensions.

Ah that finally makes sense. Couldn't work out how above walls and roof could be supported while you remove Rsjs.