hello guys!
recently I have bought a house which required a dinning\kitchen area to be refurbished
kitchen is an extension built in the end of terraced house (yr 188? )
some time ago one of the previous owners made an opening in a back external cavity wall and connected dinning room with a kitchen
the width of this opening is 200cm
there are two concrete lintels for each side of this wall supported by something like 12-15cm of brick
(please check sketch below)
lintels are 65x102mm with length about 2400mm
there is just one room above the dinning room and slope roof above the kitchen room
everything was nicely covered with ceiling and plasterboard cut arch in this opening
luckily as a part of refurbishment I have removed them and found that original outside wall lintel is actually bent a little and the brickwork above it is a bit loose - "thanks" to another stupidest person who rammed the wall with a hammer to insert rafters for a flat kitchen ceiling
so these 65x102mm lintels are actually helping to hold a brick wall (was original external wall of the building), the wall in question is around 2m high on one side and something like 4m at the other side (~3m tall wall on average - second sketch)
THE QUESTION
I want to create additional support for these lintels by adding another one right below (third sketch)
I have plenty of space to extend walls into opening to create 100-150mm of support and there is up to 200mm in height to sacrifice before this opening will look too low
* Should I go for reinforced concrete or RSJ?
* My idea is to jack up two RSJs (one for each "layer" of this cavity wall) with some mortar using props, build a brick sides-supports, leave everything dry and set, then fill remaining gap between bricks-RSJs and remove props, maybe it will be a good idea to put some steel anchors through new brickwork and original wall for extra rigidity
Any suggestions how to do it more than welcome!
THANK YOU!
p.s. I will try to find some real-world pics in a second
recently I have bought a house which required a dinning\kitchen area to be refurbished
kitchen is an extension built in the end of terraced house (yr 188? )
some time ago one of the previous owners made an opening in a back external cavity wall and connected dinning room with a kitchen
the width of this opening is 200cm
there are two concrete lintels for each side of this wall supported by something like 12-15cm of brick
(please check sketch below)
lintels are 65x102mm with length about 2400mm
there is just one room above the dinning room and slope roof above the kitchen room
everything was nicely covered with ceiling and plasterboard cut arch in this opening
luckily as a part of refurbishment I have removed them and found that original outside wall lintel is actually bent a little and the brickwork above it is a bit loose - "thanks" to another stupidest person who rammed the wall with a hammer to insert rafters for a flat kitchen ceiling
so these 65x102mm lintels are actually helping to hold a brick wall (was original external wall of the building), the wall in question is around 2m high on one side and something like 4m at the other side (~3m tall wall on average - second sketch)
THE QUESTION
I want to create additional support for these lintels by adding another one right below (third sketch)
I have plenty of space to extend walls into opening to create 100-150mm of support and there is up to 200mm in height to sacrifice before this opening will look too low
* Should I go for reinforced concrete or RSJ?
* My idea is to jack up two RSJs (one for each "layer" of this cavity wall) with some mortar using props, build a brick sides-supports, leave everything dry and set, then fill remaining gap between bricks-RSJs and remove props, maybe it will be a good idea to put some steel anchors through new brickwork and original wall for extra rigidity
Any suggestions how to do it more than welcome!
THANK YOU!
p.s. I will try to find some real-world pics in a second
