corrugated roofing - fibre or asbestos ?

Discussion in 'Misc DIY' started by Gil Mck, Jul 21, 2009.

  1. Gil Mck

    Gil Mck Guest

    How do you tell the difference between asbestos cement and fibre cement
    roofng sheet?

    (i.e. do I have a problem or do I not)

    Thanks,

    Gil
     
    Gil Mck, Jul 21, 2009
    #1
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  2. Gil Mck

    PeterC Guest

    On Tue, 21 Jul 2009 14:17:02 +0100, Gil Mck wrote:

    > How do you tell the difference between asbestos cement and fibre cement
    > roofng sheet?
    >
    > (i.e. do I have a problem or do I not)
    >
    > Thanks,
    >
    > Gil


    Pays to be [almost] as careful fith the fibre type if it's at all similar
    to asbestos in appearance/properties.
    About 20 - 25 years ago, there was an article in either some trade mag. or
    HSE newsletter about these boards possibly have some effects the same as
    asbestos. It seems fairly logical that if the fibres have the same physical
    properties as asbestos they could ahve the same effects.
    --
    Peter.
    The head of a pin will hold more angels if
    it's been flattened with an angel-grinder.
     
    PeterC, Jul 21, 2009
    #2
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  3. Gil Mck

    Ron O'Brien Guest

    Our original garage was made up of cement fibre panels (I think.... I
    hope!). Anyway knocked it down and took them to the tidy tip "Oi, that ain't
    asbestos is it?" came a voice from a yellow hi-vis jacket "No, I don't think
    so" said I. "That's alright then" said the hi-vis jacket. So it must have
    been OK

    Ron

    "Gil Mck" <> wrote in message
    news:kdj9m.5684$2...
    > How do you tell the difference between asbestos cement and fibre cement
    > roofng sheet?
    >
    > (i.e. do I have a problem or do I not)
    >
    > Thanks,
    >
    > Gil
    >
     
    Ron O'Brien, Jul 21, 2009
    #3
  4. Gil Mck

    PeterC Guest

    On Tue, 21 Jul 2009 16:43:50 +0100, Ron O'Brien wrote:

    > Our original garage was made up of cement fibre panels (I think.... I
    > hope!). Anyway knocked it down and took them to the tidy tip "Oi, that ain't
    > asbestos is it?" came a voice from a yellow hi-vis jacket "No, I don't think
    > so" said I. "That's alright then" said the hi-vis jacket. So it must have
    > been OK
    >
    > Ron


    Nice to have an expert opinion.
    >
    > "Gil Mck" <> wrote in message
    > news:kdj9m.5684$2...
    >> How do you tell the difference between asbestos cement and fibre cement
    >> roofng sheet?
    >>
    >> (i.e. do I have a problem or do I not)
    >>
    >> Thanks,
    >>
    >> Gil
    >>



    --
    Peter.
    The head of a pin will hold more angels if
    it's been flattened with an angel-grinder.
     
    PeterC, Jul 21, 2009
    #4
  5. Gil Mck

    Cash Guest

    Gil Mck wrote:
    > How do you tell the difference between asbestos cement and fibre
    > cement roofng sheet?
    >
    > (i.e. do I have a problem or do I not)
    >
    > Thanks,
    >
    > Gil


    Gil,

    The only certain way is to send a sample for analysis (as your local council
    for the address of the relevant laboratory) - but this will cost you!

    Now if the sheets are more than around 10 years old, then it's odds-on that
    they will be a cement base that is mixed with around 14% of Chrysotile
    (white asbestos) - and is safe enough as long as its not broken, rubbed down
    with abrasives or scraped.

    Some sensible advice at the link below (and I have copied the removal of
    asbestos from there) - but there is lots more advice if you want to look for
    it.

    http://www.ealing.gov.uk/services/environment/pollution/hazardous_waste_and_substances/asbestos/

    Removal of asbestos cement (eg corrugated shed roof or garages)

    Householders can undertake the removal of asbestos cement products provided
    that the following precautions are observed:
    a.. keep everyone out of the work area who does not need to be there.
    b.. thoroughly soak the material before starting work. You are advised to
    introduce a suitable wetting agent, eg washing-up liquid, into the water
    before saturation.
    c.. do not use power tools, use hand tools only.
    d.. carefully undo fixing bolts, screws etc and remove panels complete.
    e.. avoid breaking asbestos-containing material into small pieces, i.e. do
    not use hammers or drop materials from heights into refuse skips.
    f.. stack the removed sheets in the open and cover with plastic sheeting.
    g.. never sweep asbestos pieces – use a vacuum cleaner that complies with
    BS 5145, known as type "H" (available from hire shops).
    h.. put pieces in stout plastic sacks and seal.
    i.. always work in well-ventilated areas.
    j.. persons handling asbestos should wear hooded disposable over-clothing,
    and thoroughly wash exposed skin on completion of work. You are advised to
    hire from a reputable hire shop (see Yellow Pages telephone directory) a
    suitable dust mask specified for asbestos dust (reference FFP 3).

    Cash
     
    Cash, Jul 21, 2009
    #5
  6. Gil Mck

    Keith W Guest

    "Cash" <.............\\@...............//.com> wrote in message
    news:...
    > Gil Mck wrote:
    >> How do you tell the difference between asbestos cement and fibre
    >> cement roofng sheet?
    >>
    >> (i.e. do I have a problem or do I not)
    >>
    >> Thanks,
    >>
    >> Gil

    >
    > Gil,
    >
    > The only certain way is to send a sample for analysis (as your local
    > council for the address of the relevant laboratory) - but this will cost
    > you!
    >
    > Now if the sheets are more than around 10 years old, then it's odds-on
    > that they will be a cement base that is mixed with around 14% of
    > Chrysotile (white asbestos) - and is safe enough as long as its not
    > broken, rubbed down with abrasives or scraped.
    >
    > Some sensible advice at the link below (and I have copied the removal of
    > asbestos from there) - but there is lots more advice if you want to look
    > for it.
    >
    > http://www.ealing.gov.uk/services/environment/pollution/hazardous_waste_and_substances/asbestos/
    >
    > Removal of asbestos cement (eg corrugated shed roof or garages)
    >
    > Householders can undertake the removal of asbestos cement products
    > provided that the following precautions are observed:
    > a.. keep everyone out of the work area who does not need to be there.
    > b.. thoroughly soak the material before starting work. You are advised
    > to introduce a suitable wetting agent, eg washing-up liquid, into the
    > water before saturation.
    > c.. do not use power tools, use hand tools only.
    > d.. carefully undo fixing bolts, screws etc and remove panels complete.
    > e.. avoid breaking asbestos-containing material into small pieces, i.e.
    > do not use hammers or drop materials from heights into refuse skips.
    > f.. stack the removed sheets in the open and cover with plastic sheeting.
    > g.. never sweep asbestos pieces - use a vacuum cleaner that complies with
    > BS 5145, known as type "H" (available from hire shops).
    > h.. put pieces in stout plastic sacks and seal.
    > i.. always work in well-ventilated areas.
    > j.. persons handling asbestos should wear hooded disposable
    > over-clothing, and thoroughly wash exposed skin on completion of work. You
    > are advised to hire from a reputable hire shop (see Yellow Pages telephone
    > directory) a suitable dust mask specified for asbestos dust (reference FFP
    > 3).
    >


    Oh for hindsight. As a teenager in the fifties I can remember helping my
    father to cut these panels with a circular saw when his garage needed
    repairing after the car tried to come out through the wrong end.
    --
    Keith W
    Sunbury on Thames
    (If you can't laugh at life, it ain't worth living)
     
    Keith W, Jul 23, 2009
    #6
  7. Gil Mck

    Cash Guest

    Keith W wrote:
    > "Cash" <.............\\@...............//.com> wrote in message
    > news:...
    >> Gil Mck wrote:
    >>> How do you tell the difference between asbestos cement and fibre
    >>> cement roofng sheet?
    >>>
    >>> (i.e. do I have a problem or do I not)
    >>>
    >>> Thanks,
    >>>
    >>> Gil

    >>
    >> Gil,
    >>
    >> The only certain way is to send a sample for analysis (as your local
    >> council for the address of the relevant laboratory) - but this will
    >> cost you!
    >>
    >> Now if the sheets are more than around 10 years old, then it's
    >> odds-on that they will be a cement base that is mixed with around
    >> 14% of Chrysotile (white asbestos) - and is safe enough as long as
    >> its not broken, rubbed down with abrasives or scraped.
    >>
    >> Some sensible advice at the link below (and I have copied the
    >> removal of asbestos from there) - but there is lots more advice if
    >> you want to look for it.
    >>
    >> http://www.ealing.gov.uk/services/environment/pollution/hazardous_waste_and_substances/asbestos/
    >>
    >> Removal of asbestos cement (eg corrugated shed roof or garages)
    >>
    >> Householders can undertake the removal of asbestos cement products
    >> provided that the following precautions are observed:
    >> a.. keep everyone out of the work area who does not need to be
    >> there. b.. thoroughly soak the material before starting work. You
    >> are advised to introduce a suitable wetting agent, eg washing-up
    >> liquid, into the water before saturation.
    >> c.. do not use power tools, use hand tools only.
    >> d.. carefully undo fixing bolts, screws etc and remove panels
    >> complete. e.. avoid breaking asbestos-containing material into
    >> small pieces, i.e. do not use hammers or drop materials from heights
    >> into refuse skips. f.. stack the removed sheets in the open and
    >> cover with plastic sheeting. g.. never sweep asbestos pieces - use
    >> a vacuum cleaner that complies with BS 5145, known as type "H"
    >> (available from hire shops). h.. put pieces in stout plastic sacks
    >> and seal. i.. always work in well-ventilated areas.
    >> j.. persons handling asbestos should wear hooded disposable
    >> over-clothing, and thoroughly wash exposed skin on completion of
    >> work. You are advised to hire from a reputable hire shop (see Yellow
    >> Pages telephone directory) a suitable dust mask specified for
    >> asbestos dust (reference FFP 3).
    >>

    >
    > Oh for hindsight. As a teenager in the fifties I can remember
    > helping my father to cut these panels with a circular saw when his
    > garage needed repairing after the car tried to come out through the
    > wrong end.


    I know how you feel Keith, as an apprentice, and later into my on-site
    working life, I used to cut and drill the stuff (very often up to 1/2"
    thick) with power tools and by hand - and no one ever told me of the risks
    at the time.

    Cash
     
    Cash, Jul 23, 2009
    #7
  8. Gil Mck

    okjmb

    Joined:
    Jul 26, 2011
    Messages:
    1
    Don't endanger other people

     
    okjmb, Jul 26, 2011
    #8
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