Jump to content

House Corner Demo


ianfish

Recommended Posts

I have been carefully and steadily taking a 15 year old structure down that came close to our 1930's Metro style semi. The original kitchen house exterior corner wall will in time be removed being replaced with a 143mm steel column, rather than having heavier RSJs and the house "hanging" on the corner. This is for a bigger newer extension.

 

Our SE has specified a new cast pad to support the column steel.

 

What would people from here look at beginning this element of demo-underpinning?

 

Your thoughts experience welcome 

 

 

20210929_182145.jpg

Edited by ianfish
add image
Link to comment
Share on other sites

Just now, saveasteading said:

I don't really understand the question.

Do you mean removing the brick corner and replacing with a steel column?

 

Underpinning is horrible and expensive. Much easier to dig a hole from above.

 

Its the sequence i'm after how would people tackle it.

 

Yes the original corner is being removed in the final finish and a steel column with RSJ into the walls will be fitted, that bit I get. Its the need for the concrete pad and how to sequence its construction im after ideas for.

Link to comment
Share on other sites

Prop the wall up on both sides. There are special fittings to go into the mortar beds/

Remove brick corner , dig hole and fill with concrete. Fix column, bed wall onto column.

Remove props gently while holding breath.

Move on to next area.

 

Standard work for skilled builder. Scary for novice, and rightly so.

 

What is above? another floor or a roof.

Link to comment
Share on other sites

10 minutes ago, saveasteading said:

Prop the wall up on both sides. There are special fittings to go into the mortar beds/

Remove brick corner , dig hole and fill with concrete. Fix column, bed wall onto column.

Remove props gently while holding breath.

Move on to next area.

 

Standard work for skilled builder. Scary for novice, and rightly so.

 

What is above? another floor or a roof.

1st floor..

Capture.JPG

Edited by ianfish
add image
Link to comment
Share on other sites

1 hour ago, Dave Jones said:

 

I'd question why the steel in the first place and leave the corner as is, what is it going to be carrying ?

We dont want a large or anything too square in what will be the middle of our new kitchen.

 

I also didnt want to just have horizionfal rsj supports leaving the corner of the house just balanced.

 

The column is part of the SE spec which is what id envisaged

 

 

Link to comment
Share on other sites

58 minutes ago, Marvin said:

Pad foundation under a corner with a door opening to one side. 

I would want to have my method checked before commencing.

How big does the structural engineer say the pad has to be?

SE suggests a minimum of 1400 x 1400 by 500mm deep

Link to comment
Share on other sites

3 hours ago, ProDave said:

I am not sure knocking out and propping up the corner of the house on a post is a DIY job.

If you have not done this sort of thing before, then this is not the one to start with.

At least get an experienced builder to do the propping and column work,  and you can assist.

There is the window, too, and so there isn't much wall there anyway.

 

Perfectly doable but you don't know how much  you don't know....yet.

 

Think of the worst that could happen. Now ask your house insurer if you would be covered. 

  • Like 1
Link to comment
Share on other sites

1 hour ago, saveasteading said:

If you have not done this sort of thing before, then this is not the one to start with.

At least get an experienced builder to do the propping and column work,  and you can assist.

There is the window, too, and so there isn't much wall there anyway.

 

Perfectly doable but you don't know how much  you don't know....yet.

 

Think of the worst that could happen. Now ask your house insurer if you would be covered. 

+1

Link to comment
Share on other sites

  • 9 months later...

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
×
×
  • Create New...