We need to pass some pipes through our corrugated asbestos garage roof,
so although for many years we've followed the advice to leave well
alone, it makes sense to now get rid of it and replace it with something
less scary. The Garage has a flat sloping roof and adjoins the house.

I can find plenty of information about how a DIYer can safely remove and
dsipose of the asbestos sheets, but I'm wondering what would be best
used to replace it ?

Any suggestions would be welcome. Do building regs influence the choice
of materials ? Which materials are most practical ?

Roly wrote:
We need to pass some pipes through our corrugated asbestos garage roof,
so although for many years we've followed the advice to leave well
alone, it makes sense to now get rid of it and replace it with something
less scary. The Garage has a flat sloping roof and adjoins the house.

I can find plenty of information about how a DIYer can safely remove and
dsipose of the asbestos sheets, but I'm wondering what would be best
used to replace it ?

Any suggestions would be welcome. Do building regs influence the choice
of materials ? Which materials are most practical?

You would need protective clothing, overalls, goggles, gloves, and a
suitable dust mask. Best materialto replace it with would be clear or
black corrugated plastic roof sheeting, choose clear depending on how
much light you need in you garage, corrugated plastic will be suitable
for the job, im pretty sure building regs have no influence on wot type
of material you would use for this application, corrugated plastic is
probably the cheapest option

Wiggy wrote:

Roly wrote:
We need to pass some pipes through our corrugated asbestos garage roof,
so although for many years we've followed the advice to leave well
alone, it makes sense to now get rid of it and replace it with something
less scary. The Garage has a flat sloping roof and adjoins the house.

I can find plenty of information about how a DIYer can safely remove and
dsipose of the asbestos sheets, but I'm wondering what would be best
used to replace it ?

Any suggestions would be welcome. Do building regs influence the choice
of materials ? Which materials are most practical?

You would need protective clothing, overalls, goggles, gloves, and a
suitable dust mask. Best materialto replace it with would be clear or
black corrugated plastic roof sheeting, choose clear depending on how
much light you need in you garage, corrugated plastic will be suitable
for the job, im pretty sure building regs have no influence on wot type
of material you would use for this application, corrugated plastic is
probably the cheapest option

Thanks, but as I mentioned, there is no shortage of on-line information
about how to safely remove the asbestos, my question is about what to
use instead once it's gone.

I'm not looking for the cheapest solution, but neither am I looking to
spend a fortune as it's only a garage roof. I'm looking for a neat
looking solution that will be durable and practical.

I ought to add that although I call it a garage, like so many others, my
car has never seen the inside of it and it's actually a storage place
and workshop. It has natural light from glass windows, so the roof
doesn't need to let light in.

One more thing is that the roof also covers an adjacent downstairs loo
and tiny utility area. ( CH boiler & HW tank ) I assume that building
regs don't affect a non-habiltable room like that, but mention it in
case there is anything I should bear in mind.

Roly wrote:
We need to pass some pipes through our corrugated asbestos garage
roof, so although for many years we've followed the advice to leave
well alone, it makes sense to now get rid of it and replace it with
something less scary. The Garage has a flat sloping roof and adjoins
the house.

I can find plenty of information about how a DIYer can safely remove
and dsipose of the asbestos sheets, but I'm wondering what would be
best used to replace it ?

Any suggestions would be welcome. Do building regs influence the
choice of materials ? Which materials are most practical ?

Asbestos! - you won't put anything up there that will outlive it...seriously
though, what are the sheets fastened to now? - if it's angle iron, then
plastic isn't rigid enough to cover the same span as rigid asbestos, if it's
timber then you can use plastic sheeting, although being so close to the
house, this could cause unwanted intrusion from roof tiles etc...so I'd say
plywood sheets, bitumen coated, then get a roofer, (or borrow a blowlamp)
and cover the lot with green mineral felt, expect 15 years out of it, any
more is a bonus

Phil L wrote:

Asbestos! - you won't put anything up there that will outlive it...seriously
though, what are the sheets fastened to now? - if it's angle iron, then
plastic isn't rigid enough to cover the same span as rigid asbestos, if it's
timber then you can use plastic sheeting, although being so close to the
house, this could cause unwanted intrusion from roof tiles etc...so I'd say
plywood sheets, bitumen coated, then get a roofer, (or borrow a blowlamp)
and cover the lot with green mineral felt, expect 15 years out of it, any
more is a bonus

The problem is that new pipes need to be passed through the existing
roof and holes from older pipes will need to be made good, so chopping
the asbestos around isn't a very attractive proposition. If it weren't
for the re-routed pipes, the asbestos would be staying where it is.

The existing roof is supported by timber and it's against a flat end
wall of the house that rises well above the line of the garage roof, so
tiles won't get in the way.

The two options I had considered were plywood/ felt roof or some sort of
metal roofing profile. That's why I was wondering if building regs
permit an inflammable material to be used for a garage roof ( although
the wooden supports suggest it's OK ). The thing that most concerned me
about a metal roof was the prospect of condensation. I didn't want to
find out that there was a problem after the job was finished.

Clearly plywood is within the scope of DIY, so it is a serious
consideration, but I'd like to know what the alternatives are, what
their pros and cons might be and what to avoid.

Roly wrote:
Phil L wrote:

Asbestos! - you won't put anything up there that will outlive
it...seriously though, what are the sheets fastened to now? - if
it's angle iron, then plastic isn't rigid enough to cover the same
span as rigid asbestos, if it's timber then you can use plastic
sheeting, although being so close to the house, this could cause
unwanted intrusion from roof tiles etc...so I'd say plywood sheets,
bitumen coated, then get a roofer, (or borrow a blowlamp) and cover
the lot with green mineral felt, expect 15 years out of it, any more
is a bonus

The problem is that new pipes need to be passed through the existing
roof and holes from older pipes will need to be made good, so chopping
the asbestos around isn't a very attractive proposition. If it weren't
for the re-routed pipes, the asbestos would be staying where it is.

How big are the holes for the pipes? - can't the new pipes go through the
same holes? - flashband will last for several years plugging small holes up,
certainly an option worth considering, if feasible.


The existing roof is supported by timber and it's against a flat end
wall of the house that rises well above the line of the garage roof,
so tiles won't get in the way.


I meant falling tiles from above - through plastic.

The two options I had considered were plywood/ felt roof or some sort
of metal roofing profile. That's why I was wondering if building regs
permit an inflammable material to be used for a garage roof ( although
the wooden supports suggest it's OK ). The thing that most concerned
me about a metal roof was the prospect of condensation. I didn't want
to find out that there was a problem after the job was finished.

With metal there almost always is, unless you want to spend a kings ransom
on coating it all with celotex.


Clearly plywood is within the scope of DIY, so it is a serious
consideration, but I'd like to know what the alternatives are, what
their pros and cons might be and what to avoid.

Plastic goes very brittle after only a few years, but obviously it's
cheap...if the walls are up to it, new timbers, battens and roof tiles? -
costly but probably the best, although probably less costly than metal /
condensation / drip / drip / drip :-p

Phil L wrote:

How big are the holes for the pipes? - can't the new pipes go through the
same holes? - flashband will last for several years plugging small holes up,
certainly an option worth considering, if feasible.


Due to a bathroom being re-built, the soil pipe needs to be replaced and
waste pipes from the shower, bath and sink will need to be relocated
too. Whichever way you look at it, some new holes will need to be made
and some existing holes will need to be made good. The existing holes
through the asbestos roof are prone to leaking anyway, so I'd rather
start afresh and have some chance of doing it right.


Plastic goes very brittle after only a few years, but obviously it's
cheap...if the walls are up to it, new timbers, battens and roof tiles? -
costly but probably the best, although probably less costly than metal /
condensation / drip / drip / drip :-p

We had plastic elsewhere previously and it went very brittle indeed. The
location does get some pretty serious sun, so it will need to withstand
that without going brittle or softening.

In message .com,
Wiggy writes

Roly wrote:
We need to pass some pipes through our corrugated asbestos garage roof,
so although for many years we've followed the advice to leave well
alone, it makes sense to now get rid of it and replace it with something
less scary. The Garage has a flat sloping roof and adjoins the house.

I can find plenty of information about how a DIYer can safely remove and
dsipose of the asbestos sheets, but I'm wondering what would be best
used to replace it ?

Any suggestions would be welcome. Do building regs influence the choice
of materials ? Which materials are most practical?

You would need protective clothing, overalls, goggles, gloves, and a
suitable dust mask.

Why ?


--
geoff

Roly wrote:
Phil L wrote:

Due to a bathroom being re-built, the soil pipe needs to be replaced and
waste pipes from the shower, bath and sink will need to be relocated
too. Whichever way you look at it, some new holes will need to be made
and some existing holes will need to be made good. The existing holes
through the asbestos roof are prone to leaking anyway, so I'd rather
start afresh and have some chance of doing it right.


Plastic goes very brittle after only a few years, but obviously it's
cheap...if the walls are up to it, new timbers, battens and roof tiles? -
costly but probably the best, although probably less costly than metal /
condensation / drip / drip / drip :-p

We had plastic elsewhere previously and it went very brittle indeed. The
location does get some pretty serious sun, so it will need to withstand
that without going brittle or softening.

It may be time to ask yourself why there are so many asbestos roofs
around. As a roofing material it just cant be beat. All the replacement
options mentioned so far wont last a fraction as long, or with metal
will give you condensation and heat problems.

I'd keep that roof as long as its ok. If you're really too scared to
drill it you can always replace just one panel with something else. You
can get fibre cement panels new, which are the same as asbestos but
without the absestos in, but they arent cheap. One of thos replacing
one existing panel is afaics the only option that will last well and be
cheap.

As life's risks go, drilling one hole in your roof is waaaaaaay down
the list.


NT

wrote:

As life's risks go, drilling one hole in your roof is waaaaaaay down
the list.

less risk than going to the shop to get something I reckon.


NT

"Roly" wrote in message
...
We need to pass some pipes through our corrugated asbestos garage roof,
so although for many years we've followed the advice to leave well
alone, it makes sense to now get rid of it and replace it with something
less scary. The Garage has a flat sloping roof and adjoins the house.

I can find plenty of information about how a DIYer can safely remove and
dsipose of the asbestos sheets, but I'm wondering what would be best
used to replace it ?

Any suggestions would be welcome. Do building regs influence the choice
of materials ? Which materials are most practical ?

A friend of mine is very pleased with heavy duty PVC corrugated sheet. He
chose box section, rather than the conventional wavy stuff and, as it comes
in up to 6m lengths, there was no need for joints along the length.

Colin Bignell

wrote in message
oups.com...
Roly wrote:
Phil L wrote:

Due to a bathroom being re-built, the soil pipe needs to be
replaced and
waste pipes from the shower, bath and sink will need to be
relocated
too. Whichever way you look at it, some new holes will need to be
made
and some existing holes will need to be made good. The existing
holes
through the asbestos roof are prone to leaking anyway, so I'd
rather
start afresh and have some chance of doing it right.
SNIP

I'd keep that roof as long as its ok. If you're really too scared to
drill it you can always replace just one panel with something else.
You
can get fibre cement panels new, which are the same as asbestos but
without the absestos in, but they arent cheap. One of thos replacing
one existing panel is afaics the only option that will last well and
be
cheap.

As life's risks go, drilling one hole in your roof is waaaaaaay down
the list.


NT


At a practical level, if the asbestos roof is kept wet when you cut
it, there should be no significant problem.

AWEM

Roly wrote:
We need to pass some pipes through our corrugated asbestos garage roof,
so although for many years we've followed the advice to leave well
alone, it makes sense to now get rid of it and replace it with something
less scary. The Garage has a flat sloping roof and adjoins the house.

I can find plenty of information about how a DIYer can safely remove and
dsipose of the asbestos sheets, but I'm wondering what would be best
used to replace it ?

Any suggestions would be welcome. Do building regs influence the choice
of materials ? Which materials are most practical ?

Why not have a look at 'Onduline' sheets. These are the same profile as
A/C sheets and are more rigid than PVC. Dont know what they are made of
but look OK to me. Last time I saw them were in Wickes

The message
from (Roly) contains these words:

Any suggestions would be welcome. Do building regs influence the choice
of materials ? Which materials are most practical ?

What about triple wall polycarbonate sheets typically used for car ports
and conservatories?

--
Roger Chapman

In message , Roly
writes
The existing roof is supported by timber and it's against a flat end
wall of the house that rises well above the line of the garage roof, so
tiles won't get in the way.

The two options I had considered were plywood/ felt roof or some sort of
metal roofing profile. That's why I was wondering if building regs
permit an inflammable material to be used for a garage roof ( although
the wooden supports suggest it's OK ). The thing that most concerned me
about a metal roof was the prospect of condensation. I didn't want to
find out that there was a problem after the job was finished.

Clearly plywood is within the scope of DIY, so it is a serious
consideration, but I'd like to know what the alternatives are, what
their pros and cons might be and what to avoid.

Maybe look at commercial metal roofing systems as used for factory units
etc.
Generally an insulated metal sandwich construction. Would give long
life, warmth and no condensation. May well be expensive, but you'd only
need a _relatively_ small amount. Any commercial building sites nearby
you can bribe the roofers with beer vouchers?

Wards (part of Kingspan now) is a name that springs to mind (only as I
pass their factory regularly, and follow wagon loads of the stuff along
the A64!)

--
steve

Roly wrote:
We need to pass some pipes through our corrugated asbestos garage
roof, so although for many years we've followed the advice to leave
well alone, it makes sense to now get rid of it and replace it with
something less scary. The Garage has a flat sloping roof and adjoins
the house.

I can find plenty of information about how a DIYer can safely remove
and dsipose of the asbestos sheets, but I'm wondering what would be
best used to replace it ?

Any suggestions would be welcome. Do building regs influence the
choice of materials ? Which materials are most practical ?

Bitumen Corrugated Sheet http://www.wickes.co.uk/icat/rsbitumenroof


--
Dave
The Medway Handyman
www.medwayhandyman.co.uk
01634 717930
07850 597257