Cutting quarry tiles, stopping dust

[camerart]

Hi,

I've been figuring out a damp problem in an old kitchen extension, and think the problem is because quarry tiles have been laid above the damp course and bridging water up to the walls.

I'm going to cut a channel all around the room about 1/2 inch hoping to tank downwards to the dampcourse.

What is the best way to minimise the red dust? I have a large disk cutter, with no extractor.

Cheers, Camerart.

 

[eveares]

Spraying on a light coat of water perhaps?

 

[camerart]

Spraying on a light coat of water perhaps?

Hi E,
I suspect there will be more dust than you imagine. I've cut bricks before, and there's a lot of dust.
Thanks, C.

 

[Burnerman]

I use an air mover with a 4" duct, directed to outside.....plus a suitably masked marra to hold it as I cut
John

 

[camerart]

I use an air mover with a 4" duct, directed to outside.....plus a suitably masked marra to hold it as I cut
John

Hi J,

I have a dying vacuum cleaner, hopefully this will do, perhaps Ill take the filter out. I'll try it out tomorrow.
I'm on my own, so no marra, not even the green variety
Thanks, C.

 

[Burnerman]

It'll help mate but I reckon you've an uncomfortable task ahead.....in a second or two you'll not be able to see anything.
Have you had a look at what the local hire shops have to offer, extraction wise!
John

 

[camerart]

It'll help mate but I reckon you've an uncomfortable task ahead.....in a second or two you'll not be able to see anything.
Have you had a look at what the local hire shops have to offer, extraction wise!
John

Hi J,
I'm not looking forward to it, but there you go.
I'll try and make some sort of temporary cover, to help contain it, with the vacuum attached.
C.

 

[Burnerman]

Hope it goes well...you'll be blowing red snots for days!
Be lucky
John

 

[chappers]

wet it, will still make a mess but at least you will be able to see what your doing

 

[Doggit]

I have a suspicion that you're look at the wrong problem. If you've got tiles that are causing damp, then you've got a solid floor, so the problem can't be solved by cutting a channel round the wall as the damps coming up through the whole floor. I suspect there was no damp membrane put down before the tiles were laid because the solid floor should be above the dpc in the first place.

 

[camerart]

wet it, will still make a mess but at least you will be able to see what your doing

Hi C,
I know what you mean but, apart from everthing else, Ill be holding a dangerous electric weapon, but I'll try a little water. I'm sure there's a proper tool, but I doubt it can get close enough to the wall. If I can hold my breath for 1/2 hour, it will be finished.
C.

 

[camerart]

I have a suspicion that you're look at the wrong problem. If you've got tiles that are causing damp, then you've got a solid floor, so the problem can't be solved by cutting a channel round the wall as the damps coming up through the whole floor. I suspect there was no damp membrane put down before the tiles were laid because the solid floor should be above the dpc in the first place.

Hi D,
I have been looking at this, for a long time now, and come to the latest diagnosis. The tiles are bridging moisture past the damp course slate, 2 inches down. The tiles are waterproof. I am cutting a channel approx 1/2 inch wide then filling it with waterproof tanking. Let's hope I'm correct.
C.

 

[camerart]

Removed.

 

[Doggit]

I can see where you're coming from, but I'm not sure it'll work, but it's creative thinking. so you're reckoning to go down about 3". If you can get someone to help you, then you might get away with a pressurised garden sprayer being sprayed on to the leading edge of the cut. Spray a bit, then leave it whilst the new dust gets caught by the wet surroundings, then spray again when the dust starts to rise again. You'll need a wet vac to clean up the area when it gets too messy. As to cutting a 1.5" wide channel, consider finding a 50mm wide tile that you can use as an edging tile round the room, and then cut at about 60mm from the wall; that'll make it easier to get the tanking in easier, and then patch the floor afterwards.

How come the floor got raised to much.

 

[camerart]

I can see where you're coming from, but I'm not sure it'll work, but it's creative thinking. so you're reckoning to go down about 3". If you can get someone to help you, then you might get away with a pressurised garden sprayer being sprayed on to the leading edge of the cut. Spray a bit, then leave it whilst the new dust gets caught by the wet surroundings, then spray again when the dust starts to rise again. You'll need a wet vac to clean up the area when it gets too messy. As to cutting a 1.5" wide channel, consider finding a 50mm wide tile that you can use as an edging tile round the room, and then cut at about 60mm from the wall; that'll make it easier to get the tanking in easier, and then patch the floor afterwards.

How come the floor got raised to much.

Hi D,

The floor was raised around the 40s. It was a lean to but was converted to a washroom, so they raised the floor to match the rest of the kitchen, but not the damp course

On post #11 I've changed a . to a / so now it reads 1/2 inch from the wall and 2inches down past the damp slate (the slot will be hidden under the skirting board) It only needs to be a slot. The idea is to connect the dry section of wall above the damp course to the tiles.

I cut along one wall today, so there is no damp connection. If the wall dries, then I am correct, then I need a good product to seal wall to tile.

B'man, clean nose, as I used good mask, and yes, I disapeared in dust as I just cut with no water or extractor.

C.