Mockfjärd's Element House 1968 - Cut in Floor Element - How to Fix?

[huset1968]

Hello!

Craftsmen have moved the floor drain on the upper floor by cutting into several floor elements. I understand that you shouldn't cut into them just any way. How should this be patched up correctly? Is it done properly at all? Anyone have good tips?

 

[bearmaniac]

No, that doesn't look good at all; it's cut across the direction of the elements. A lot of the load-bearing capacity of the floor joists is now gone.

What's underneath? Do you have the ability to access the ceiling in that room? You can reinforce the floor joists by placing fairly strong studs across the direction of the elements, on the underside of the elements. If that's not possible, I would suggest glue-screwing k-plyfa on top of the entire floor. My very amateur guess is that it will hold well, but I promise absolutely nothing.

 

[huset1968]

No, that doesn't look good at all, it's cut across the direction of the elements. A lot of the load-bearing capacity of the floor joist is now gone.

What's underneath? Do you have access to the ceiling in that room? It's possible to reinforce the floor joist by placing fairly strong studs across the direction of the elements, on the underside of the elements. If that’s not possible, I would suggest gluing and screwing k-plyfa onto the entire floor. My very amateurish guess is that it will hold well, but I promise absolutely nothing.

thanks for the reply

 

[bearmaniac]

No problem. Please let us know how you did it later - you are neither the first nor the last with this issue. Those who come after you will surely appreciate some guidance as well.

 

[Erik Lövstav]

But goodness, the entire load-bearing capacity for the elements disappeared when they were cut like that!?

I gutted the interiors of all the elements in the upstairs bathroom, framed a new joist structure all the way out to the top plate on the exterior wall.

How has it gone for you??

 

[huset1968]

But goodness, the entire load-bearing capacity for the elements disappeared when they were cut like that!?

I tore out the innards of all the elements in the upstairs bathroom, built new joists all the way out to the wall plate on the outer wall.

How has it gone for you??

Thanks for the pictures, The craftsmen have screwed OSB over the sawn-open floor and built a bathroom. According to them, it shouldn't be any problem. The floor feels solid.

 

[Erik Lövstav]

Thanks for the pictures, the craftsmen have screwed OSB over the sawed floor and built a bathroom. According to them, there should be no problems. The floor feels solid.

Ok, good to hear, the houses are very special and require a lot of thought during interventions👍

 

[bearmaniac]

Thank you for the pictures, the craftsmen have screwed OSB over the sawed-up floor and built a bathroom. According to them, it should not be a problem. The floor feels solid.

I assess the likelihood as reasonably high that they are right, but I would simultaneously venture to say that they have no experience whatsoever with this type of construction or in calculating strength. That the floor feels solid is a good indication at least.