I need to get up on the roof of my garage to remove the moss. I
don't have a feel for how much imposed weight I can put on a typical
asbestos garage roof before I crack the panels. The panels are
supported on wood beams about every 5 feet.

If I put up a couple of planks to spread my weight across two beams
would that be enough do you think?

I weigh 100kg clothed.

Robert

On 3 Mar, 16:09, RobertL wrote:
I need to get up on the roof of my garage to remove the moss. *

Get a platform (three-way convert-a-ladder - great things and well
worth Aldi's 60 quid) and stand alongside with a long rake.

No way will I use crawling boards on a small-corrugation asbestos
roof. The stuff is brittle as anything, and even if you don't go
through it, there's a risk of cracking it and resultant leaks.

On Mar 3, 4:19*pm, Andy Dingley wrote:
On 3 Mar, 16:09, RobertL wrote:

I need to get up on the roof of my garage to remove the moss. *

Get a platform (three-way convert-a-ladder - great things and well
worth Aldi's 60 quid) and stand alongside with a long rake.

No way will I use crawling boards on a small-corrugation asbestos
roof. The stuff is brittle as anything, and even if you don't go
through it, there's a risk of cracking it and resultant leaks.

Thanks, it was cracking I was worried about. I hadn't even though
about falling through!

The corrugations are about 6" apart and about 2" deep.


Robert

On Wed, 3 Mar 2010 08:09:19 -0800 (PST), RobertL
wrote:
I need to get up on the roof of my garage to remove the moss. I
don't have a feel for how much imposed weight I can put on a typical
asbestos garage roof before I crack the panels. The panels are
supported on wood beams about every 5 feet.

If I put up a couple of planks to spread my weight across two beams
would that be enough do you think?

I weigh 100kg clothed.


No chance. Not only is asbestos cement weak and brittle, but there is
the danger from asbestos fibres when it breaks, as it surely will with
any weight on it.

Instead, use a ladder or staging to get into a position where you can
remove the moss with a pressure washer. Otherwise, don't bother.

If you insist on going ahead with your plank idea, you should call the
ambulance before starting work.

On 3 Mar, 16:36, Bruce wrote:
On Wed, 3 Mar 2010 08:09:19 -0800 (PST), RobertL

wrote:
I need to get up on the roof of my garage to remove the moss. I
don't have a feel for how much imposed weight I can put on a typical
asbestos garage roof before I crack the panels. The panels are
supported on wood beams about every 5 feet.

If I put up a couple of planks to spread my weight across two beams
would that be enough do you think?

I weigh 100kg clothed.

No chance. Not only is asbestos cement weak and brittle, but there is
the danger from asbestos fibres when it breaks, as it surely will with
any weight on it.

oh no! not the "asbestos cement DANGER DANGER" thread again I hope
Bruce?!

from wiki - to save the bandwidth:-

"Asbestos exposure becomes a health concern when high concentrations
of asbestos fibers are inhaled over a long time period.[23] People who
become ill from inhaling asbestos are often those who are exposed on a
day-to-day basis in a job where they worked directly with the
material. As a person's exposure to fibers increases, because of being
exposed to higher concentrations of fibers and/or by being exposed for
a longer time, then that person's risk of disease also increases.
Disease is very unlikely to result from a single, high-level exposure,
or from a short period of exposure to lower levels.[23] Smoking
combined with asbestos exposure may increase the health risk
dramatically"

Cheers
JimK

On Mar 3, 4:24*pm, RobertL wrote:
On Mar 3, 4:19*pm, Andy Dingley wrote:

On 3 Mar, 16:09, RobertL wrote:

I need to get up on the roof of my garage to remove the moss. *

Get a platform (three-way convert-a-ladder - great things and well
worth Aldi's 60 quid) and stand alongside with a long rake.

No way will I use crawling boards on a small-corrugation asbestos
roof. The stuff is brittle as anything, and even if you don't go
through it, there's a risk of cracking it and resultant leaks.

Thanks, it was cracking I was worried about. * I hadn't even though
about falling through!

The corrugations are about 6" apart and about 2" deep.

Robert

Cant you just use a long stick to get the moss off?
Copper wire run along the ridge may stop it regrowing.


NT

On Wed, 3 Mar 2010 08:58:14 -0800 (PST), JimK
wrote:

oh no! not the "asbestos cement DANGER DANGER" thread again I hope
Bruce?!


It depends on which fibres were used, which depends on when the roof
panels were made and by whom. In other words, it depends. And it is
extremely unlikely that any records are available, or remain.

My health and safety advisers take the view that *all* asbestos cement
products should be left alone or removed by a specialist contractor.

But I can understand people thinking that they can take a chance, and
that they will probably get away with it to save a few £s. The world
is full of chancers.

On Mar 3, 1:58*pm, JimK wrote:
On 3 Mar, 16:36, Bruce wrote:





On Wed, 3 Mar 2010 08:09:19 -0800 (PST), RobertL

wrote:
I need to get up on the roof of my garage to remove the moss. * I
don't have a feel for how much imposed weight I can put on a typical
asbestos garage roof before I crack the panels. *The panels are
supported on wood beams about every 5 feet.

If I put up a couple of planks to spread my weight across two beams
would that be enough do you think?
I weigh 100kg clothed.

No chance. *Not only is asbestos cement weak and brittle, but there is
the danger from asbestos fibres when it breaks, as it surely will with
any weight on it.

oh no! not the "asbestos cement DANGER DANGER" thread again I hope
Bruce?!

from wiki - to save the bandwidth:-

"Asbestos exposure becomes a health concern when high concentrations
of asbestos fibers are inhaled over a long time period.[23] People who
become ill from inhaling asbestos are often those who are exposed on a
day-to-day basis in a job where they worked directly with the
material. As a person's exposure to fibers increases, because of being
exposed to higher concentrations of fibers and/or by being exposed for
a longer time, then that person's risk of disease also increases.
Disease is very unlikely to result from a single, high-level exposure,
or from a short period of exposure to lower levels.[23] Smoking
combined with asbestos exposure may increase the health risk
dramatically"

Cheers
JimK- Hide quoted text -

- Show quoted text -

As above; very little danger if any, just because it is asbestos.
Cracking, leaks, falling through/injury yes.
Don't get onto it at all! Pressure wash or scrape from the sides, also
one could make a shaped scraper to fit the grooves on a longish
handle!
But why is it necessary to remove the moss?
PS. Have cut asbestos with hand saw, and on one or two occasions with
a hand held electric circular saw, during the last 55 years. Always
outside and making sure to keep everything damp to avoid inhaling
fibres. And am still around!

On 3 Mar, 16:36, Bruce wrote:

Instead, use a ladder or staging to get into a position where you can
remove the moss with a pressure washer. *Otherwise, don't bother.

One of the worst things you can do with an asbestos roof is to
pressure wash it. Now that really does loosen the fibres up!

Personally I leave mine and its moss well alone. I fix it where it
needs it, otherwise we live in blissful mutual ignoring of each other.

On 3 Mar, 17:17, Bruce wrote:

It depends on which fibres were used,

This is roofing board. Just how much fibre variation was there?

RobertL wrote:
I need to get up on the roof of my garage to remove the moss. I
don't have a feel for how much imposed weight I can put on a typical
asbestos garage roof before I crack the panels. The panels are
supported on wood beams about every 5 feet.

If I put up a couple of planks to spread my weight across two beams
would that be enough do you think?

I weigh 100kg clothed.

Robert
I used to walk all over my dad's garage roof
which was very rusty metal
by always putting my foot on a nail,
cos under the nails were rafters.

[g]

On Mar 3, 5:17*pm, Bruce wrote:
On Wed, 3 Mar 2010 08:58:14 -0800 (PST), JimK

wrote:

oh no! not the "asbestos cement DANGER DANGER" thread again I hope
Bruce?!

It depends on which fibres were used, which depends on when the roof
panels were made and by whom. *In other words, it depends. *And it is
extremely unlikely that any records are available, or remain.

My health and safety advisers take the view that *all* asbestos cement
products should be left alone or removed by a specialist contractor. *

But I can understand people thinking that they can take a chance, and
that they will probably get away with it to save a few s. *The world
is full of chancers.

I think the point is there is a lack of sound evidence that taking
white asbestos sheet down twice per lifetime was in any way chancey.


NT

On 3 Mar, 17:17, Bruce wrote:
On Wed, 3 Mar 2010 08:58:14 -0800 (PST), JimK

wrote:

oh no! not the "asbestos cement DANGER DANGER" thread again I hope
Bruce?!

It depends on which fibres were used, which depends on when the roof
panels were made and by whom. In other words, it depends. And it is
extremely unlikely that any records are available, or remain.

My health and safety advisers take the view that *all* asbestos cement
products should be left alone or removed by a specialist contractor.

No surprise there then.....

But I can understand people thinking that they can take a chance, and
that they will probably get away with it to save a few s. The world
is full of chancers.

matched in equal number by over zealous "career" H&S "professhunals"
who see "risk" of any size as an opportunity to make a lot of $ out of
"mugs" too scared by the propaganda or too thick to assess the "risk"
themselves - there's one born every minute! (luckily for the H&S gang
and specialist contractors....)

NB this is UK DIY not uk.corporate.responsibility :)

Cheers
JimK

On 3 Mar, 18:02, NT wrote:
On Mar 3, 5:17 pm, Bruce wrote:



On Wed, 3 Mar 2010 08:58:14 -0800 (PST), JimK

wrote:

oh no! not the "asbestos cement DANGER DANGER" thread again I hope
Bruce?!

It depends on which fibres were used, which depends on when the roof
panels were made and by whom. In other words, it depends. And it is
extremely unlikely that any records are available, or remain.

My health and safety advisers take the view that *all* asbestos cement
products should be left alone or removed by a specialist contractor.

But I can understand people thinking that they can take a chance, and
that they will probably get away with it to save a few s. The world
is full of chancers.

I think the point is there is a lack of sound evidence that taking
white asbestos sheet down twice per lifetime was in any way chancey.

NT

Agreed (& succinctly put :)
JimK

On Wed, 3 Mar 2010 08:09:19 -0800 (PST), RobertL wrote:

I need to get up on the roof of my garage to remove the moss. I
don't have a feel for how much imposed weight I can put on a typical
asbestos garage roof before I crack the panels. The panels are
supported on wood beams about every 5 feet.

If I put up a couple of planks to spread my weight across two beams
would that be enough do you think?

I weigh 100kg clothed.

Robert

Did the roof of my house from a ladder, with standoff, using a long-handled
dutch hoe.
--
Peter.
2x4 - thick plank; 4x4 - two of 'em.

On Wed, 3 Mar 2010 09:20:39 -0800 (PST), terry wrote:

But why is it necessary to remove the moss?

On my shed's roof, the moss had slightly pushed up the overlaps so that
rain was blown under by strong winds from the wrong direction.
--
Peter.
2x4 - thick plank; 4x4 - two of 'em.

On Wed, 3 Mar 2010 09:21:13 -0800 (PST), Andy Dingley wrote:

On 3 Mar, 16:36, Bruce wrote:

Instead, use a ladder or staging to get into a position where you can
remove the moss with a pressure washer. *Otherwise, don't bother.

One of the worst things you can do with an asbestos roof is to
pressure wash it. Now that really does loosen the fibres up!

Personally I leave mine and its moss well alone. I fix it where it
needs it, otherwise we live in blissful mutual ignoring of each other.

I found a site that had paint for asbestos roofing. The instructions for
Preparation included scrubbing the asbestos - but no mention of having a
steady stream of water on to it!
--
Peter.
2x4 - thick plank; 4x4 - two of 'em.

In message
,
RobertL writes

I need to get up on the roof of my garage to remove the moss. I
don't have a feel for how much imposed weight I can put on a typical
asbestos garage roof before I crack the panels. The panels are
supported on wood beams about every 5 feet.

If I put up a couple of planks to spread my weight across two beams
would that be enough do you think?

I weigh 100kg clothed.

Crikey. That's more than I weigh!

Use a long handled garden draw hoe. One of your allotment holding
neighbours is bound to have one.

regards

--
Tim Lamb

On 03/03/2010 16:58, JimK wrote:
On 3 Mar, 16:36, wrote:
On Wed, 3 Mar 2010 08:09:19 -0800 (PST), RobertL

wrote:
I need to get up on the roof of my garage to remove the moss. I
don't have a feel for how much imposed weight I can put on a typical
asbestos garage roof before I crack the panels. The panels are
supported on wood beams about every 5 feet.

If I put up a couple of planks to spread my weight across two beams
would that be enough do you think?

I weigh 100kg clothed.

No chance. Not only is asbestos cement weak and brittle, but there is
the danger from asbestos fibres when it breaks, as it surely will with
any weight on it.

oh no! not the "asbestos cement DANGER DANGER" thread again I hope
Bruce?!

from wiki - to save the bandwidth:-

"Asbestos exposure becomes a health concern when high concentrations
of asbestos fibers are inhaled over a long time period.[23] People who
become ill from inhaling asbestos are often those who are exposed on a
day-to-day basis in a job where they worked directly with the
material. As a person's exposure to fibers increases, because of being
exposed to higher concentrations of fibers and/or by being exposed for
a longer time, then that person's risk of disease also increases.
Disease is very unlikely to result from a single, high-level exposure,
or from a short period of exposure to lower levels.[23] Smoking
combined with asbestos exposure may increase the health risk
dramatically"

Cheers
JimK

One fibre can kill. Painful death from mesothelioma. I used to read the
medical reports when handling insurance claims. Not a nice part f the job.
Cement asbestos is however pretty safe. Clean breaks are unlikely to
release fibres but do not drill or file (or angle grind) it.
My corrugated asbestos cement garage roof is gaining moss and it will
stay that way. Waiting for the tree above to drop a branch so the
insurance company will replace it. Just as long as they can afford to
continue to pay my pension. Largest general insurer in Chile.

In message
,
RobertL writes

I need to get up on the roof of my garage to remove the moss. I
don't have a feel for how much imposed weight I can put on a typical
asbestos garage roof before I crack the panels. The panels are
supported on wood beams about every 5 feet.

If I put up a couple of planks to spread my weight across two beams
would that be enough do you think?

I weigh 100kg clothed.

Lardy bugger

Put your planks on the screws / bolts that hold the sheets on, that way
you are loading the beams directly. Asbestos sheets crack very easily
when they get old


--
geoff

On 3 Mar, 19:54, Invisible Man wrote:
On 03/03/2010 16:58, JimK wrote:



On 3 Mar, 16:36, wrote:
On Wed, 3 Mar 2010 08:09:19 -0800 (PST), RobertL

wrote:
I need to get up on the roof of my garage to remove the moss. I
don't have a feel for how much imposed weight I can put on a typical
asbestos garage roof before I crack the panels. The panels are
supported on wood beams about every 5 feet.

If I put up a couple of planks to spread my weight across two beams
would that be enough do you think?

I weigh 100kg clothed.

No chance. Not only is asbestos cement weak and brittle, but there is
the danger from asbestos fibres when it breaks, as it surely will with
any weight on it.

oh no! not the "asbestos cement DANGER DANGER" thread again I hope
Bruce?!

from wiki - to save the bandwidth:-

"Asbestos exposure becomes a health concern when high concentrations
of asbestos fibers are inhaled over a long time period.[23] People who
become ill from inhaling asbestos are often those who are exposed on a
day-to-day basis in a job where they worked directly with the
material. As a person's exposure to fibers increases, because of being
exposed to higher concentrations of fibers and/or by being exposed for
a longer time, then that person's risk of disease also increases.
Disease is very unlikely to result from a single, high-level exposure,
or from a short period of exposure to lower levels.[23] Smoking
combined with asbestos exposure may increase the health risk
dramatically"

Cheers
JimK

One fibre can kill. Painful death from mesothelioma. I used to read the
medical reports when handling insurance claims. Not a nice part f the job.

pah! how many reports stated "one fibre" killed them or caused meso.??

Cement asbestos is however pretty safe. Clean breaks are unlikely to
release fibres but do not drill or file (or angle grind) it.

....every day of your working life

My corrugated asbestos cement garage roof is gaining moss and it will
stay that way. Waiting for the tree above to drop a branch so the
insurance company will replace it.

and you desist breathing until they've dealt with it presumably (lest
the "single fibre" gets you)?

more hysteria IMHO

JimK

In message , Bruce
writes
On Wed, 3 Mar 2010 08:09:19 -0800 (PST), RobertL
wrote:
I need to get up on the roof of my garage to remove the moss. I
don't have a feel for how much imposed weight I can put on a typical
asbestos garage roof before I crack the panels. The panels are
supported on wood beams about every 5 feet.

If I put up a couple of planks to spread my weight across two beams
would that be enough do you think?

I weigh 100kg clothed.


No chance. Not only is asbestos cement weak and brittle, but there is
the danger from asbestos fibres when it breaks, as it surely will with
any weight on it.

The risk from this sort of asbestos is minimal


Instead, use a ladder or staging to get into a position where you can
remove the moss with a pressure washer. Otherwise, don't bother.

If you insist on going ahead with your plank idea, you should call the
ambulance before starting work.

Do they offer a moss removal service or something then ?


FFS uk.safety.nazis.org is over there -------------------

--
geoff

In message , Bruce
writes
On Wed, 3 Mar 2010 08:58:14 -0800 (PST), JimK
wrote:

oh no! not the "asbestos cement DANGER DANGER" thread again I hope
Bruce?!


It depends on which fibres were used, which depends on when the roof
panels were made and by whom. In other words, it depends. And it is
extremely unlikely that any records are available, or remain.

My health and safety advisers take the view that *all* asbestos cement
products should be left alone or removed by a specialist contractor.

But I can understand people thinking that they can take a chance, and
that they will probably get away with it to save a few £s. The world
is full of chancers.

That's how we came down from the trees


--
geoff

In message
, NT
writes
On Mar 3, 5:17*pm, Bruce wrote:
On Wed, 3 Mar 2010 08:58:14 -0800 (PST), JimK

wrote:

oh no! not the "asbestos cement DANGER DANGER" thread again I hope
Bruce?!

It depends on which fibres were used, which depends on when the roof
panels were made and by whom. *In other words, it depends. *And it is
extremely unlikely that any records are available, or remain.

My health and safety advisers take the view that *all* asbestos cement
products should be left alone or removed by a specialist contractor. *

But I can understand people thinking that they can take a chance, and
that they will probably get away with it to save a few s. *The world
is full of chancers.

I think the point is there is a lack of sound evidence that taking
white asbestos sheet down twice per lifetime was in any way chancey.

That's just not true, you could get hit by a meteorite while you were
climbing the ladder


--
geoff

In message
,
terry writes
On Mar 3, 1:58*pm, JimK wrote:
On 3 Mar, 16:36, Bruce wrote:





On Wed, 3 Mar 2010 08:09:19 -0800 (PST), RobertL

wrote:
I need to get up on the roof of my garage to remove the moss. * I
don't have a feel for how much imposed weight I can put on a typical
asbestos garage roof before I crack the panels. *The panels are
supported on wood beams about every 5 feet.

If I put up a couple of planks to spread my weight across two beams
would that be enough do you think?
I weigh 100kg clothed.

No chance. *Not only is asbestos cement weak and brittle, but there is
the danger from asbestos fibres when it breaks, as it surely will with
any weight on it.

oh no! not the "asbestos cement DANGER DANGER" thread again I hope
Bruce?!

from wiki - to save the bandwidth:-

"Asbestos exposure becomes a health concern when high concentrations
of asbestos fibers are inhaled over a long time period.[23] People who
become ill from inhaling asbestos are often those who are exposed on a
day-to-day basis in a job where they worked directly with the
material. As a person's exposure to fibers increases, because of being
exposed to higher concentrations of fibers and/or by being exposed for
a longer time, then that person's risk of disease also increases.
Disease is very unlikely to result from a single, high-level exposure,
or from a short period of exposure to lower levels.[23] Smoking
combined with asbestos exposure may increase the health risk
dramatically"

Cheers
JimK- Hide quoted text -

- Show quoted text -

As above; very little danger if any, just because it is asbestos.
Cracking, leaks, falling through/injury yes.
Don't get onto it at all! Pressure wash or scrape from the sides, also
one could make a shaped scraper to fit the grooves on a longish
handle!
But why is it necessary to remove the moss?
PS. Have cut asbestos with hand saw, and on one or two occasions with
a hand held electric circular saw, during the last 55 years. Always
outside and making sure to keep everything damp to avoid inhaling
fibres. And am still around!

Spent a year erecting pre-fab buildings

One on the roof drilling, one underneath putting on the clips. The air
inside was a haze of fibres



--
geoff

In message , Tim Lamb
writes
In message
,
RobertL writes

I need to get up on the roof of my garage to remove the moss. I
don't have a feel for how much imposed weight I can put on a typical
asbestos garage roof before I crack the panels. The panels are
supported on wood beams about every 5 feet.

If I put up a couple of planks to spread my weight across two beams
would that be enough do you think?

I weigh 100kg clothed.

Crikey. That's more than I weigh!

Lightweight ...


Use a long handled garden draw hoe. One of your allotment holding
neighbours is bound to have one.

regards


--
geoff

RobertL explained on 03/03/2010 :
Thanks, it was cracking I was worried about. I hadn't even though
about falling through!

The corrugations are about 6" apart and about 2" deep.

I fell through one of my roofs last year - only about 6' down onto
piles of soft materials, but it could have been much worse. It cracks
without any warning at all. I was using a plank BTW.

If you are going to use planks, the plank needs to be strong enough to
support all of your weight without transferring any onto the roof
mid-span, it also needs to have the weight only supported over the
beams via spacers and the weight under the spacers needs to be put onto
the roof via some material with some give in it.

--
Regards,
Harry (M1BYT) (L)
http://www.ukradioamateur.co.uk

PeterC was thinking very hard :
On my shed's roof, the moss had slightly pushed up the overlaps so that
rain was blown under by strong winds from the wrong direction.

Squirt some good frame sealant into the inside (uphill) joint edges.
With a similar problem, that is what I did and it has proven to be very
effective.

--
Regards,
Harry (M1BYT) (L)
http://www.ukradioamateur.co.uk

Andy Dingley wrote:
On 3 Mar, 16:36, Bruce wrote:

Instead, use a ladder or staging to get into a position where you can
remove the moss with a pressure washer. Otherwise, don't bother.

One of the worst things you can do with an asbestos roof is to
pressure wash it. Now that really does loosen the fibres up!


With respect - bollox!


--
Dave - The Medway Handyman
www.medwayhandyman.co.uk

In message , The Medway
Handyman writes
One of the worst things you can do with an asbestos roof is to
pressure wash it. Now that really does loosen the fibres up!


With respect - bollox!


http://www.aic.org.uk/asbestos_cement.htm


Cleaning Asbestos Cement Roofs.

This should only be carried out if it can not be avoided, moss and
lichens although some may think them unsightly are not normally
detrimental. Asbestos cement is very fragile and so the recommendations
in HSG 33 Health and safety in roof work (1998) must be followed.

Do not clean by dry scrapping or by pressure washing, both can produce
dangerous quantities of free asbestos fibres. Either:

* Use remote cleaning. This technique involves skilled operatives
using units with enclosed rotary cleaning heads and high-pressure water
jets, the filtering of the water run off and the disposal of the filter
waste as asbestos waste. It should only be carried out by skilled
specialist contractors.
* Cleaning with surface biocides. The biocides are applied with
low-pressure sprays or as washes. The roof is then left for the moss and
lichen to die, when it can be gently brushed from the roof with soft
brushes. It is important that the roof is kept wet during the brushing
and the waste is carefully collected placed in plastic bags and disposed
of as asbestos waste.





--
Bill

On 03/03/2010 22:34, JimK wrote:
On 3 Mar, 19:54, Invisible wrote:
On 03/03/2010 16:58, JimK wrote:



On 3 Mar, 16:36, wrote:
On Wed, 3 Mar 2010 08:09:19 -0800 (PST), RobertL

wrote:
I need to get up on the roof of my garage to remove the moss. I
don't have a feel for how much imposed weight I can put on a typical
asbestos garage roof before I crack the panels. The panels are
supported on wood beams about every 5 feet.

If I put up a couple of planks to spread my weight across two beams
would that be enough do you think?

I weigh 100kg clothed.

No chance. Not only is asbestos cement weak and brittle, but there is
the danger from asbestos fibres when it breaks, as it surely will with
any weight on it.

oh no! not the "asbestos cement DANGER DANGER" thread again I hope
Bruce?!

from wiki - to save the bandwidth:-

"Asbestos exposure becomes a health concern when high concentrations
of asbestos fibers are inhaled over a long time period.[23] People who
become ill from inhaling asbestos are often those who are exposed on a
day-to-day basis in a job where they worked directly with the
material. As a person's exposure to fibers increases, because of being
exposed to higher concentrations of fibers and/or by being exposed for
a longer time, then that person's risk of disease also increases.
Disease is very unlikely to result from a single, high-level exposure,
or from a short period of exposure to lower levels.[23] Smoking
combined with asbestos exposure may increase the health risk
dramatically"

Cheers
JimK

One fibre can kill. Painful death from mesothelioma. I used to read the
medical reports when handling insurance claims. Not a nice part f the job.

pah! how many reports stated "one fibre" killed them or caused meso.??

Cement asbestos is however pretty safe. Clean breaks are unlikely to
release fibres but do not drill or file (or angle grind) it.

...every day of your working life

My corrugated asbestos cement garage roof is gaining moss and it will
stay that way. Waiting for the tree above to drop a branch so the
insurance company will replace it.

and you desist breathing until they've dealt with it presumably (lest
the "single fibre" gets you)?

more hysteria IMHO

JimK

I'll leave my roof for 10 years. That way I'll be dead before meso has
time to develop.

On Mar 3, 7:50*pm, Tim Lamb wrote:
In message
,
RobertL writes



I need to get up on the roof of my garage to remove the moss. * I
don't have a feel for how much imposed weight I can put on a typical
asbestos garage roof before I crack the panels. *The panels are
supported on wood beams about every 5 feet.

If I put up a couple of planks to spread my weight across two beams
would that be enough do you think?

I weigh 100kg clothed.

Crikey. That's more than I weigh!


I am 6'3"

Robert

Thanks for all you guidance folks. Clearly I will need to do it
with a long handled something or other.

BTW, the reason it's needed is that it blocks the flow of water down
the roof so the water backs up and seems in through the overlaps. I
only need to clear the lower sections I think.

Robert

RobertL wrote:
I need to get up on the roof of my garage to remove the moss. I
don't have a feel for how much imposed weight I can put on a typical
asbestos garage roof before I crack the panels. The panels are
supported on wood beams about every 5 feet.

I did my large garage roof (approx 10m by 5m) in an afternoon using a
chimney sweep brush. Gaffer tape a weight to the brush end, then draw it
along the corrugations using the extender rods. Brush all the moss into
the gutter, then scoop it out with a trowel.

Hope this helps,

Roger.

In message
,
RobertL writes
If I put up a couple of planks to spread my weight across two beams
would that be enough do you think?

I weigh 100kg clothed.

Crikey. That's more than I weigh!


I am 6'3"

Ah! You have 4" of extra storage space. My excuse has always been *very
heavy bones* as I do not float. It makes swimming very hard work.

regards

--
Tim Lamb

On Mar 4, 12:59*am, Bill wrote:
In message , The Medway
Handyman writes

One of the worst things you can do with an asbestos roof is to
pressure wash it. Now that really does loosen the fibres up!

With respect - bollox!

http://www.aic.org.uk/asbestos_cement.htm

Cleaning Asbestos Cement Roofs.

This should only be carried out if it can not be avoided, moss and
lichens although some may think them unsightly are not normally
detrimental. Asbestos cement is very fragile and so the recommendations
in HSG 33 Health and safety in roof work (1998) must be followed.

Do not clean by dry scrapping or by pressure washing, both can produce
dangerous quantities of free asbestos fibres. Either:

* * ** Use remote cleaning. This technique involves skilled operatives
using units with enclosed rotary cleaning heads and high-pressure water
jets, the filtering of the water run off and the disposal of the filter
waste as asbestos waste. It should only be carried out by skilled
specialist contractors.
* * ** Cleaning with surface biocides. The biocides are applied with
low-pressure sprays or as washes. The roof is then left for the moss and
lichen to die, when it can be gently brushed from the roof with soft
brushes. It is important that the roof is kept wet during the brushing
and the waste is carefully collected placed in plastic bags and disposed
of as asbestos waste.


How credible is that? The claim that moss from an asbestos cement
roof, which remains undamaged by moss growth, must be treated like
asbestos for disposal.

Not only that but they want asbestos disposal companies to do your
roof cleaning! I think we can see where that site's coming from.


NT

RobertL wrote:
I need to get up on the roof of my garage to remove the moss.

bad idea.

On 4 Mar, 10:38, NT wrote:
On Mar 4, 12:59 am, Bill wrote:



In message , The Medway
Handyman writes

One of the worst things you can do with an asbestos roof is to
pressure wash it. Now that really does loosen the fibres up!

With respect - bollox!

http://www.aic.org.uk/asbestos_cement.htm

Cleaning Asbestos Cement Roofs.

This should only be carried out if it can not be avoided, moss and
lichens although some may think them unsightly are not normally
detrimental. Asbestos cement is very fragile and so the recommendations
in HSG 33 Health and safety in roof work (1998) must be followed.

Do not clean by dry scrapping or by pressure washing, both can produce
dangerous quantities of free asbestos fibres. Either:

* Use remote cleaning. This technique involves skilled operatives
using units with enclosed rotary cleaning heads and high-pressure water
jets, the filtering of the water run off and the disposal of the filter
waste as asbestos waste. It should only be carried out by skilled
specialist contractors.
* Cleaning with surface biocides. The biocides are applied with
low-pressure sprays or as washes. The roof is then left for the moss and
lichen to die, when it can be gently brushed from the roof with soft
brushes. It is important that the roof is kept wet during the brushing
and the waste is carefully collected placed in plastic bags and disposed
of as asbestos waste.

How credible is that? The claim that moss from an asbestos cement
roof, which remains undamaged by moss growth, must be treated like
asbestos for disposal.

Not only that but they want asbestos disposal companies to do your
roof cleaning! I think we can see where that site's coming from.

NT

£1 a minute "advice" line that's where from :)

" Director General A M Hutchinson FIoR"

WTF is "FIoR" anyone?

JimK

"Tim Lamb" wrote in message
...


Ah! You have 4" of extra storage space. My excuse has always been *very
heavy bones* as I do not float. It makes swimming very hard work.

Fat floats, muscle doesn't, the bones don't appear to have much effect.
I sink like a stone and can just sit on the bottom of the pool.

On Wed, 03 Mar 2010 23:34:15 GMT, Harry Bloomfield wrote:

PeterC was thinking very hard :
On my shed's roof, the moss had slightly pushed up the overlaps so that
rain was blown under by strong winds from the wrong direction.

Squirt some good frame sealant into the inside (uphill) joint edges.
With a similar problem, that is what I did and it has proven to be very
effective.

Good point - thanks.
--
Peter.
2x4 - thick plank; 4x4 - two of 'em.