Hello,
a door is to be installed in a load-bearing interior wall (calcium silicate brick) of an older semi-detached house (built in 1976) (structural engineer approval confirmed).
Questions:
1. Should the door opening be cut with a saw or chiseled out? Disadvantage of sawing: significant dust generation, as water cannot be used due to parquet flooring on one side. Disadvantage of chiseling: vibrations? Rough opening.
The work will be carried out by a professional company.
Which breakthrough method would an experienced builder recommend?
2. The ceiling will be supported with steel posts. Is damage to the parquet floor to be expected, even if the post rests on a thick wooden plank? The parquet area will generally be protected with boards in the demolition area.
I would appreciate any helpful advice.
a door is to be installed in a load-bearing interior wall (calcium silicate brick) of an older semi-detached house (built in 1976) (structural engineer approval confirmed).
Questions:
1. Should the door opening be cut with a saw or chiseled out? Disadvantage of sawing: significant dust generation, as water cannot be used due to parquet flooring on one side. Disadvantage of chiseling: vibrations? Rough opening.
The work will be carried out by a professional company.
Which breakthrough method would an experienced builder recommend?
2. The ceiling will be supported with steel posts. Is damage to the parquet floor to be expected, even if the post rests on a thick wooden plank? The parquet area will generally be protected with boards in the demolition area.
I would appreciate any helpful advice.
solar1 schrieb:
to @costa: Cutting with water would be ideal of course. But how do you protect the parquet floor in the room while doing this?
to @BeHaElJa:
I want to know the exact pros and cons myself before awarding the contract and avoid any issues, since subsequent scheduled work depends on it. Because even with professional companies, there have unfortunately been mistakes, and liability afterwards doesn’t help me at all. You don’t cut all the way through, but leave about 2cm (1 inch) intact and build a dust barrier or box on the parquet side. The remaining part that is still standing can then be quickly snapped off.