We want to raise the floor level in part of our house (an extension) to reach the same level as the rest of the house. There are many ways to do this, but we can't decide what is best.
The extension stands on walls, there is a basement underneath. The lift should be 40-50 cm. When the house is lifted, sewage will also be installed in or under the floor.
Some options (feel free to add more!)
1. Lift the entire extension with jacks or a crane truck and add a couple of additional rows of bricks before setting the house down again. This also provides extra height in the basement, which would be good.
2. Place new joists on top of the existing floorboards and new flooring on the new joists. To get reasonable ceiling height, you could:
a) rebuild the roof trusses so that it's only low at the edges of the walls.
b) lift the entire roof (or make a new roof) and extend the walls upward.
3. Tear down the entire extension and make a new one - not so appealing, as there are no major issues with the extension as it is.
What could be the most cost-effective? What can be done by oneself?
The extension stands on walls, there is a basement underneath. The lift should be 40-50 cm. When the house is lifted, sewage will also be installed in or under the floor.
Some options (feel free to add more!)
1. Lift the entire extension with jacks or a crane truck and add a couple of additional rows of bricks before setting the house down again. This also provides extra height in the basement, which would be good.
2. Place new joists on top of the existing floorboards and new flooring on the new joists. To get reasonable ceiling height, you could:
a) rebuild the roof trusses so that it's only low at the edges of the walls.
b) lift the entire roof (or make a new roof) and extend the walls upward.
3. Tear down the entire extension and make a new one - not so appealing, as there are no major issues with the extension as it is.
What could be the most cost-effective? What can be done by oneself?
Member
· Västerbottens län
· 18 054 posts
1 is probably the most sensible option, compared to moving the entire house.
Protte
Protte
Option 2a sounds like it offers the least intervention in the house and can be done by oneself. The roof trusses must be recalculated due to the change in geometry, but it should not pose any problems or major changes. There should be no problem raising the joists, i.e., the ceiling in the basement, without affecting the outer walls.
Option 1 - A lot of work and the right expertise is needed. Don't forget installations that must follow in the move, i.e., electricity, plumbing, ventilation.
Option 2b - Same as option 1 minus the walls.
Option 3 - Sounds like a lot of work and money for little gain.
Option 1 - A lot of work and the right expertise is needed. Don't forget installations that must follow in the move, i.e., electricity, plumbing, ventilation.
Option 2b - Same as option 1 minus the walls.
Option 3 - Sounds like a lot of work and money for little gain.
Thank you for the feedback.
I can add that the only installations currently present are electrical, and that is supplied from its own substation in the extension, so the work to temporarily disconnect the extension from the rest of the house should be limited.
One reason why it's tempting to lift the entire extension is that it would then be easy to install new plumbing in the basement. Ventilation will also be installed, and that will be in the ceiling.
I can add that the only installations currently present are electrical, and that is supplied from its own substation in the extension, so the work to temporarily disconnect the extension from the rest of the house should be limited.
One reason why it's tempting to lift the entire extension is that it would then be easy to install new plumbing in the basement. Ventilation will also be installed, and that will be in the ceiling.
Member
· Västerbottens län
· 18 054 posts
To lift the entire house, you need to enlist the help of people who have suitable equipment (iron beams and jacks), but then the house part is "finished" once you've built the basement and put the house back, you don't even need to remove all the furniture.
Just plan how it will be with the roof, some overhang might collide with the other.
Protte
Just plan how it will be with the roof, some overhang might collide with the other.
Protte