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:
Hello,
a load-bearing interior wall (calcium silicate brick) in an older semi-detached house (built in 1976) is going to have a door installed (structural engineer approval received).
Questions:
1. Should the door opening be cut with a saw or broken out with a hammer and chisel? Disadvantage of sawing: significant dust because water cannot be used due to parquet flooring on one side. Disadvantage of hammering: vibrations? Rough opening.
The work will be done by a professional company.
Which method for creating the opening would an experienced builder recommend?
2. The ceiling must be supported with steel props. Is damage to the parquet floor to be expected, even if the prop stands on a thick wooden board? The parquet floor in the demolition area will generally be protected with panels.
I would appreciate any helpful advice. A professional company will be able to cut using water and also support the structure without causing damage. I have worked in this trade myself and know this from experience. We have worked in very different rooms without any damage.
to @costa: Cutting with water would, of course, be ideal. But how can the parquet floor in a room be protected during this process?
to @BeHaElJa:
Before commissioning the work, I want to know the exact advantages and disadvantages myself to avoid any issues, as subsequent scheduled tasks depend on it. Even when working with professional companies, there have unfortunately been problems before, and liability afterward is of no use to me.
to @BeHaElJa:
Before commissioning the work, I want to know the exact advantages and disadvantages myself to avoid any issues, as subsequent scheduled tasks depend on it. Even when working with professional companies, there have unfortunately been problems before, and liability afterward is of no use to me.
G
garfunkel7 Sep 2016 22:07Using a cut-off wheel will create the most dust. If you have a good construction vacuum cleaner held by someone else, it works surprisingly well. However, it should have more power than a household vacuum cleaner.
I’m not familiar with using water, but that might be the best option. Whether a professional company can do it without causing damage, I don’t know. I tend to believe so, as you can usually trust professionals and their employees since they generally deliver proper work. Damage is certainly not common.
Breaking through with a sledgehammer, rotary hammer, or similar tools will also create a lot of dust, so don’t be misled. From personal experience, I would say that a rotary hammer stirs up about as much dust as a cut-off wheel with the appropriate dust extraction.
I’m not familiar with using water, but that might be the best option. Whether a professional company can do it without causing damage, I don’t know. I tend to believe so, as you can usually trust professionals and their employees since they generally deliver proper work. Damage is certainly not common.
Breaking through with a sledgehammer, rotary hammer, or similar tools will also create a lot of dust, so don’t be misled. From personal experience, I would say that a rotary hammer stirs up about as much dust as a cut-off wheel with the appropriate dust extraction.
I can only share how we did it, and it worked perfectly. By the way, it was an 11.5cm (4.5 inch) solid brick wall, not those aerated blocks but solid bricks comparable to sand-lime bricks. For a 24cm (9.5 inch) wall, I would have cut from both sides. It resulted in a nice straight edge.
The vacuum cleaner was a Starmix ARH1635, so not a toy vacuum. The dust that remained was really minimal, especially considering how much dust was released when emptying the vacuum.
The vacuum cleaner was a Starmix ARH1635, so not a toy vacuum. The dust that remained was really minimal, especially considering how much dust was released when emptying the vacuum.
Similar topics