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  1. #1
    Join Date
    Mar 2005
    Location
    Gold Coast
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    2

    Default Cutting asbestos without too much dust

    G'day all, i'm about to install a doorway in a fibro wall which i suspect contains asbestos (property is a Queenslander type about 50 years old).

    To cut the doorway in, i'll have to cut out 2 door sized sections of the board (either side of wall). I was told to do this with an angle grinder (diamond blade) but i reckon it's gonna cause a lotta dust.

    Can anyone comment on which is the best way to go about this? Should i use the angle grinder (wear mask etc) or is there a better way to do it without causing so much dust?

    PS: excellent forum, so glad i found it

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  3. #2
    Join Date
    Jan 2005
    Location
    uk
    Age
    75
    Posts
    476

    Default

    Quote Originally Posted by Kram
    G'day all, i'm about to install a doorway in a fibro wall which i suspect contains asbestos (property is a Queenslander type about 50 years old).
    To cut the doorway in, i'll have to cut out 2 door sized sections of the board (either side of wall). I was told to do this with an angle grinder (diamond blade) but i reckon it's gonna cause a lotta dust.
    Can anyone comment on which is the best way to go about this? Should i use the angle grinder (wear mask etc) or is there a better way to do it without causing so much dust?
    PS: excellent forum, so glad i found it
    Kram , theres athread on this a few weeks back and some very ggod input by our experienced members which is worth reading. Also do a google on asbestos removal it will make very clear the dangers involved.
    I would strongly recommend you leave it alone and call in professionals to do it for you..It really is very dangerous stuff.
    beejay1

    http://community.webshots.com/user/eunos9

  4. #3
    Join Date
    Nov 2003
    Location
    Australia and France
    Posts
    8,175

    Default

    Yep! Get someone else to do it and go away for a few days.

    IF you really must, wear proper protective gear including respirator, remove the whole sheet carefully and dispose of it thoughtfully ,

    Reclad with a new fibrous cement with a similar thickness,

    DON'T CUT IT WITH AN ANGLE GRINDER OR POWER SAW UNDER ANY CIRCUMSTANCES.

    Cheers,

    P

  5. #4
    Join Date
    Sep 2003
    Location
    Elimbah, QLD
    Posts
    3,336

    Default

    Back in the early '70's I lived in an uninsulated fibro-cement company house in Mount Isa. It was a bit like living in an oven, really. Eventually I managed to persuade the bosses in Melbourne that my efficiency would be markedly improved if I did not have to spend nearly all my time trying to prevent rivers of sweat from ruining my maps and air photos, and that an air-conditioner should be installed in the office. Unfortunately, carpenters were in short supply in the Isa, and I eventually realized that, if I wanted the a/c installed, I would have to do it myself. So, not knowing any better at the time, I attacked the fibro walls with a circular saw. I got the air con installed, but I could well have inhaled enough asbestos to cause mesothelioma. I just keep my fingers crossed; but I would join others in suggesting that you leave cutting asbestos to a specialist.

    Rocker
    Last edited by Rocker; 17th March 2005 at 09:28 AM.

  6. #5
    Join Date
    Mar 2004
    Age
    76
    Posts
    188

    Default

    And the b*****s knew what they were selling long before the 1970's.

    The claims against Hardies now include a young woman who was exposed to asbestos as a child when her father renovated.

    The problem with this stuff is that it's not only you who are at risk but everyone around you - family and neighbours, as well as unsuspecting strangers who might wander past.

  7. #6
    Join Date
    Dec 2001
    Location
    Between a rock & a hard place (vic)
    Posts
    898

    Post

    Using an angle grinder to cut a/c sheet with any blade will cause a dust storm.
    If you must do it yourself have a good read of this booklet:
    http://www.health.vic.gov.au/environ...s_home2003.pdf

  8. #7
    Join Date
    Oct 2003
    Location
    Canberra
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    Default

    we have new laws here in the ACT that require you to disclose anything you know about asbestos in your house to any tradies, tenants etc etc. A bloody good idea and well overdue.

    Having lost my grandad to mesothilioma a few years ago, I can attest that it is a terrible way to go. It's not worth risking your life and those around you to work with this stuff to save a few bucks. I'm with midge on this one - get someone in to remove it and go away for a few days.

    Trav

  9. #8
    Join Date
    Sep 2004
    Location
    Hampton Victoria
    Age
    67
    Posts
    52

    Default

    One idea Kram
    If you really must do it yourself. One paint it both sides, Two wear gloves and mask, coverall, Three use fibro cutters to cut the sheet, and Four dispose of carefully...

    Having said that old fibro if you nail though it it with probably break, so pull the two sheet offs carefully and replace with new cement sheet

    Don

  10. #9
    Join Date
    Aug 2004
    Location
    Perth WA
    Posts
    2,035

    Default

    Do an initial break through with a nail punch to get the old hand operated (guillotine type) in to complete the straight line cuts. When you come to noggins/studs use the nail punch again.

  11. #10
    Join Date
    Apr 2004
    Location
    Melbourne
    Age
    64
    Posts
    250

    Default Encourage removal ... don't cut

    Kram,

    as others have said, please don't cut the sheet with power tools .. dust everywhere, fibres released --> potential BAD news some day!

    I'd follow the advice given .. remove the whole sheet(s) and reclad with equivalent sheeting. Removal ideally should leave a spotless area but I've heard horrible stories so even if you get in the professionals make sure the site is clean afterwards. If not, keep the family out until it is and use non-dust creating methods of cleaning. (beware of the family vac) dispose of cleanings appropriately.

    Also, seal off the work area prior to starting.

    From my perspective asbestos in cement sheet is tolerable ONLY as long as it is trapped in the sheet. Once it starts to get out (dust, abrasion, etc ...) then get out of there until it is gone! If you have kids, then be even more paranoid.

    If you're over 50, then probably OK to DIY with precautions as the disease takes 30-40 years to show up --- depends on your life expectancy!

    Anyone know why it is young blokes doing removal work?? seems crazy from a health point of view!
    cheers
    David

    ------------------------------------------------
    A society grows great when old men plant trees whose shade they’ll never sit in. (Greek proverb)

  12. #11
    Join Date
    Oct 2003
    Location
    Canberra
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    47
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    Default

    remember to dispose of this stuff properly too. Don't just take it to the dump and chuck it.

    Trav

  13. #12
    Join Date
    Mar 2005
    Location
    Gold Coast
    Posts
    2

    Default

    Thanks for all the quick replies - much appreciated.

    I'm creating another bedroom and need to put a doorway in so i don't need to reclad it. The new stud wall will be gyprocked.

    After doing another search and reading these replies, i think i'll do as a few suggested and use a nail punch to perforate the outline before breaking along the line with a mallet (trying not to crack the surrounding board). I'll also try and get the fibro cutters in there where i can.

    It's an old wall that already has paint on it, so i don't think repainting it will help. But i'll spray it down to help reduce the dust.

    I also intend to put down new carpet, so i'm thinking i'll rip up the old stuff before starting so that there's less dust to be trapped.

    I'll let you know how it goes,

    Cheers for all the suggestions

  14. #13
    Join Date
    Jan 2004
    Location
    Blackburn, Vic
    Age
    56
    Posts
    672

    Default

    A couple of extra points or maybe just to re-emphasise what has been said.

    Clean up should be done with water not vacuum. It is OK to wash the cleanup down the sink - asbestos is not actually poisonous, ie you can eat/drink it (I wouldn't, but you can) but you cannot inhale it.

    Wear disposable overclothes and wash your underclothes immediately.

    Check with the local council on disposal - it is normally acceptable to double-bag small amounts of asbestos and the disposable clothes and clearly label as asbestos and then dump as per normal building ruibbish. To re-iterate, asbestos is not poisonous and does no more harm to the environment than burying other building products, it is the potential to inhale it at a later date that is the problem.

    In some states you are not allowed to do diy work on asbestos for more than 1 hour per week.
    They laughed when I said I was going to be a comedian. They're not laughing now.
    Bob Monkhouse

  15. #14
    Join Date
    Oct 2004
    Location
    Perthish
    Posts
    82

    Default

    Sell the house and go somewhere else!

    Hardies and their ilk have a LOT to answer for.
    Ummmm, what was the question?

  16. #15
    Join Date
    Aug 2004
    Location
    Darwin, Northern Territory
    Age
    47
    Posts
    315

    Thumbs up

    Take the meesus on a holiday and get someone in. I used to live in a house that had heaps of the evil crap around until we demolished it and built a new one. Took about two weeks andwe had to get special permission off the council.


    I know yours isn't a huge job, but the danger is still there. If you need to do it yourself, I'd recommend a cheap dust suit and respirator (no need for external O2 supply) just one of those masks with goggles (prefereaby a full face) that will have a fine enough filter to trap the little dust particles.

    Cheers

    Kris

    Hope all goes well.
    "Last year I said I'd fix the squeak in the cupbaord door hinge... Right now I have nearly finished remodelling the whole damn kitchen!"

    [email protected]

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