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5 replies
15k views
5 replies
Tear down aerated concrete wall with render?
Does anyone out there have tips on how to gently take down a lightweight concrete wall the easiest way? I don't want to cover the whole house in dust since it's blåbetong. I've tried using an angle grinder with a diamond blade, but no—it kicks up a ton of dust. Are there reciprocating saw blades that can handle the plaster? It's the plaster and the mortar between the lightweight concrete elements that's causing the most sweat. Do lightweight concrete saws (the ones that look like large-toothed hacksaws) survive the plaster and mortar? All tips are welcome and appreciated.
Sacrifice a saw chain and use a chainsaw, electric or motor-driven. But first...
Get construction plastic sheeting and a few 1"x3" boards. Use a staple gun to attach the plastic sheeting to the boards. It should be as long as the wall you intend to take down and secured to the ceiling with the plastic clamped between the board and the ceiling. On the floor directly beneath the plastic, place a board of equal length. Then make sure to cut boards with a snug fit between the floor and the ceiling minus the thickness of just under two boards. This way, you fasten the board to the ceiling against the board on the floor with these boards. Hence, no marks on the ceiling or floor. Behind the plastic sheeting against the wall that will be taken down is where you'll work. Tape the sides and set up a dust cover on the other side of the wall if necessary.
Good luck!
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The Builder
Get construction plastic sheeting and a few 1"x3" boards. Use a staple gun to attach the plastic sheeting to the boards. It should be as long as the wall you intend to take down and secured to the ceiling with the plastic clamped between the board and the ceiling. On the floor directly beneath the plastic, place a board of equal length. Then make sure to cut boards with a snug fit between the floor and the ceiling minus the thickness of just under two boards. This way, you fasten the board to the ceiling against the board on the floor with these boards. Hence, no marks on the ceiling or floor. Behind the plastic sheeting against the wall that will be taken down is where you'll work. Tape the sides and set up a dust cover on the other side of the wall if necessary.
Good luck!
______________
The Builder
I would also suggest that you rent an air purifier for a couple of hundred that can stand and clean the air while you work. If you want to be really meticulous, you release the air purifier's exhaust outside the plastic enclosure, then you'll have negative pressure where you work and not a speck of dust will escape.
Hello! Buy face masks, protective goggles, and gloves. Grab the big sledgehammer.
I tore down a blue concrete wall with a screwdriver and a hammer. Because the wall cracks quite easily, it's easy to knock out piece by piece, about 2x2 dm. If you knock it loose at the ceiling and wall ends, the wall becomes unstable so you can more or less topple it if you want. Advantages: no special tools, minimal dust, cheap. Disadvantages: I've only taken down a wall that is 2 m wide, took about an hour, it might get a bit tiring if there's a lot of wall.
I sawed down a wall over the weekend that was 2x2.4m. I started with a handsaw which worked pretty well but was still tiring. So I went and bought a concrete blade for the reciprocating saw, and then it took about 30 minutes to split the whole wall into 6 pieces; it went like butter. Have a blade for steel and switch to it if you encounter reinforcement. Then I split them in half again to be able to carry them out.
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