I have a flat roof that is a little "long in the tooth"

I thought I would give it a coat of paint to see if I could stall the
inevitable [one or two sunken its hold water].

I haven't used the paint before but iI get the impression it is both
very fluid and very volatile.

I want to keep my activities on the roof to a minimum, so I suppose
spraying the stuff on would be best.
Lidl do a sprayer for £14-00 has anyone any suggestions/ experience?


The paints instructions warn against use on polystyrene, so I would
guess that it may melt certain plastics. Also if the paint is
flammable might there be a risk of a static discharge using a sprayer.

Any suggestions would be welcome.


Regards

AB


http://www.ebay.co.uk/itm/2713732112...%3AMEBIDX%3AIT

On Sun, 12 Jul 2015 05:32:12 +0100, Archibald Tarquin Blenkinsopp
wrote:

I thought I would give it a coat of paint to see if I could stall the
inevitable [one or two sunken its hold water].

Is it leaking? If not and you know it's in poor condition yomping
about on it isn't going to do it any good. Sunken bits holding water
are not a problem, they aren't leaking!

Why do you think a solar reflective paint is going to seal it or make
much difference to an old roof that will already be degraded. Bung it
on a new roof, maybe. Indeed if it is solvent based and the existing
felt is a bit weak or cracked the solvent will penetrate and may make
matters worse.

--
Cheers
Dave.

"Archibald Tarquin Blenkinsopp"
wrote in message ...
I have a flat roof that is a little "long in the tooth"

I thought I would give it a coat of paint to see if I could stall the
inevitable [one or two sunken its hold water].

I haven't used the paint before but iI get the impression it is both
very fluid and very volatile.

I want to keep my activities on the roof to a minimum, so I suppose
spraying the stuff on would be best.
Lidl do a sprayer for £14-00 has anyone any suggestions/ experience?


The paints instructions warn against use on polystyrene, so I would
guess that it may melt certain plastics. Also if the paint is
flammable might there be a risk of a static discharge using a sprayer.

Any suggestions would be welcome.


Regards

AB


http://www.ebay.co.uk/itm/2713732112...%3AMEBIDX%3AIT


25 Litres? unless the roof is the size of a football pitch, that's a waste
of money.

You can get a 5 Litre can from any paint supplier / roofing merchant, but
it's not going to do any good.

It's a reflective coating designed to keep the heat down, pretty useless at
stopping leaks etc.

If it's leaking, this stuff is what you need, although it's not cheap, and
it's not meant to be a permanent fix:
http://www.ebay.co.uk/itm/Cromapol-A...em43df88 53d8

On Sun, 12 Jul 2015 14:56:18 +0100, "Phil L"
wrote:


"Archibald Tarquin Blenkinsopp"
wrote in message ...
I have a flat roof that is a little "long in the tooth"

I thought I would give it a coat of paint to see if I could stall the
inevitable [one or two sunken its hold water].

I haven't used the paint before but iI get the impression it is both
very fluid and very volatile.

I want to keep my activities on the roof to a minimum, so I suppose
spraying the stuff on would be best.
Lidl do a sprayer for £14-00 has anyone any suggestions/ experience?


The paints instructions warn against use on polystyrene, so I would
guess that it may melt certain plastics. Also if the paint is
flammable might there be a risk of a static discharge using a sprayer.

Any suggestions would be welcome.


Regards

AB


http://www.ebay.co.uk/itm/2713732112...%3AMEBIDX%3AIT


25 Litres? unless the roof is the size of a football pitch, that's a waste
of money.

You can get a 5 Litre can from any paint supplier / roofing merchant, but
it's not going to do any good.

It's a reflective coating designed to keep the heat down, pretty useless at
stopping leaks etc.

If it's leaking, this stuff is what you need, although it's not cheap, and
it's not meant to be a permanent fix:
http://www.ebay.co.uk/itm/Cromapol-A...em43df88 53d8

Many thanks for the replies.

The roof does not leak at present, however the low bits collecting
water are presumably detrimental to the covering?

The roof used to be painted on a regular basis, but I have not seen to
it for a few years now.

The sun and associated UV light can be quite pronounced where the
house is located.

My assumption was that heat/ UV was detrimental to the roof.

The original coatings of paint have all but gone now leaving a large
expanse of dark patches.

I assumed if I could reduce the heat/ UV with the paint, it may help
to put off a replacement roof for another few years.

25 litres is overkill but as the house is not in the UK I would not
want to run out. Squirting many coats of paint onto a roof from a
comfortable distance would probably fall within my skillset
incidentally.

The main reason for the sprayer is to keep off the roof as much as
possible.

I have bought the paint and I could apply it with a sprayer, brush or
roller I suppose.


Please don't tell me it's going to be a total waste of time :-(


Regards

AB

On Sunday, July 12, 2015 at 2:54:42 PM UTC+1, Phil L wrote:
"Archibald Tarquin Blenkinsopp"
wrote in message ...
I have a flat roof that is a little "long in the tooth"

I thought I would give it a coat of paint to see if I could stall the
inevitable [one or two sunken its hold water].

I haven't used the paint before but iI get the impression it is both
very fluid and very volatile.

I want to keep my activities on the roof to a minimum, so I suppose
spraying the stuff on would be best.
Lidl do a sprayer for �14-00 has anyone any suggestions/ experience?


The paints instructions warn against use on polystyrene, so I would
guess that it may melt certain plastics. Also if the paint is
flammable might there be a risk of a static discharge using a sprayer.

Any suggestions would be welcome.


Regards

AB


http://www.ebay.co.uk/itm/2713732112...%3AMEBIDX%3AIT


25 Litres? unless the roof is the size of a football pitch, that's a waste
of money.


With a name like Archibald Tarquin Blenkinsopp, it might be a stately home!
Simon.

In article ,
Archibald Tarquin Blenkinsopp
wrote:
I have a flat roof that is a little "long in the tooth"

I thought I would give it a coat of paint to see if I could stall the
inevitable [one or two sunken its hold water].

I haven't used the paint before but iI get the impression it is both
very fluid and very volatile.

I want to keep my activities on the roof to a minimum, so I suppose
spraying the stuff on would be best.
Lidl do a sprayer for £14-00 has anyone any suggestions/ experience?


The paints instructions warn against use on polystyrene, so I would
guess that it may melt certain plastics. Also if the paint is
flammable might there be a risk of a static discharge using a sprayer.

Any suggestions would be welcome.

If you wish to extend the life of a felted flat roof somewhat, use a
product designed for the purpose like Aquapol. But it is far too thick to
spray without sophisticated equipment. But easy enough to brush on.

--
*I have a degree in liberal arts -- do you want fries with that

Dave Plowman London SW
To e-mail, change noise into sound.

On Wed, 15 Jul 2015 12:44:23 +0100, "Dave Plowman (News)"
wrote:

In article ,
Archibald Tarquin Blenkinsopp
wrote:
I have a flat roof that is a little "long in the tooth"

I thought I would give it a coat of paint to see if I could stall the
inevitable [one or two sunken its hold water].

I haven't used the paint before but iI get the impression it is both
very fluid and very volatile.

I want to keep my activities on the roof to a minimum, so I suppose
spraying the stuff on would be best.
Lidl do a sprayer for £14-00 has anyone any suggestions/ experience?


The paints instructions warn against use on polystyrene, so I would
guess that it may melt certain plastics. Also if the paint is
flammable might there be a risk of a static discharge using a sprayer.

Any suggestions would be welcome.

If you wish to extend the life of a felted flat roof somewhat, use a
product designed for the purpose like Aquapol. But it is far too thick to
spray without sophisticated equipment. But easy enough to brush on.

I don't know what the material is, it was smooth silver finished when
first fitted and had a sheen that I wouldn't associate with felt.

Whoever fitted it warned of the need to keep painting it with an
aluminum paint. I do not know what the paint was and I suspect that
the roofing company is no longer around.

Is the main ingredient that is detrimental to the "bitumen"?? based
coating likely to be sunlight?

I did a search on Aquapol, but the cost seems to suggest that it may
be best to hang on until the leaks start, then worry about a new roof.

Regards

AB

In article ,
Archibald Tarquin Blenkinsopp
wrote:
I did a search on Aquapol, but the cost seems to suggest that it may
be best to hang on until the leaks start, then worry about a new roof.

As a preventative measure, you'd tend to use it where felt etc normally
fails first - like any joins and upturns, etc.

It is pricey - but works.

I had a leak at an upturn where the felt goes under the flashing and
repaired it with Aquapol, as the rest of the felt looked ok. Has lasted 5
years and counting.

--
*Succeed, in spite of management *

Dave Plowman London SW
To e-mail, change noise into sound.

I have some/little experience with felted flat roofs.

Neither do I know to what extent the board/decking is drooping but,
dependent upon age, it does suggest they are a chipboard form. If so,
you are right to avoid putting any extra weight on the surface; even to
the extent of chancing walking on the supporting rafters. Though, you
could use a couple of planks across the rafting.

If the droop is pronounced, any water collection will accelerate the
process due to the weight; discounting the effects of any frost. In
which case, paint will not prevent further drooping and any subsequent
tearing.

The decking is, more likely, to be subject to the changes in internal
atmosphere rather than the external.

Should you decide upon having the roof replaced consider marine ply else
if applicable, converted to a slate/tile roof.



....Ray.


--
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Join Now! Be a part of people power.

http://www.theregister.co.uk/
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On Fri, 17 Jul 2015 20:35:50 +0100, RayL12
wrote:


I have some/little experience with felted flat roofs.

Neither do I know to what extent the board/decking is drooping but,
dependent upon age, it does suggest they are a chipboard form. If so,
you are right to avoid putting any extra weight on the surface; even to
the extent of chancing walking on the supporting rafters. Though, you
could use a couple of planks across the rafting.

If the droop is pronounced, any water collection will accelerate the
process due to the weight; discounting the effects of any frost. In
which case, paint will not prevent further drooping and any subsequent
tearing.

The decking is, more likely, to be subject to the changes in internal
atmosphere rather than the external.

Should you decide upon having the roof replaced consider marine ply else
if applicable, converted to a slate/tile roof.



...Ray.
Thank you,
you are quite right, it is chipboard. At least this
was what was used on the original roof some thirty years back and I
would suspect that although the top surface is a different material
now, the chipboard approach is the same.

From my limited experience with flat roofs I suppose I knew that the
act of merely painting it would not be of any truly significant
benefit, I really wanted a few people to reply saying what a marvelous
solution it was, second in effect only to a brand new roof :-(

I think I will stick the paint on for now, if physical damage to the
sunken bits occurs then maybe I can get a local roofer to repair the
damage and replace the individual board[s] that droop. Since starting
my enquiries it seems that this is an option adopted by some people in
the locality.

Most of the roof seems good

The roof was laid with virtually no drop at all, I suspect this does
not help the situation.

The paint may help preserve the "good bits" and will provide a
"feelgood factor" in the respect that I am doing something instead of
just overseeing the deterioration passively.

I will give the Lidl sprayer a try and spray a meter square at a time
to limit the risk from static/ fire, although I suppose the sprayers
innards may dissolve rapidly?

Anyway thanks Ray, I'm very grateful for your advice, now if only it
were a little more positive :-)

Many thanks!!

AB

In article ,
RayL12 wrote:
Should you decide upon having the roof replaced consider marine ply else
if applicable, converted to a slate/tile roof.

Many flat roofs are flat because there is no option.

--
*I wonder how much deeper the ocean would be without sponges*

Dave Plowman London SW
To e-mail, change noise into sound.

On Thu, 16 Jul 2015 11:05:06 +0100, "Dave Plowman (News)"
wrote:

In article ,
Archibald Tarquin Blenkinsopp
wrote:
I did a search on Aquapol, but the cost seems to suggest that it may
be best to hang on until the leaks start, then worry about a new roof.

As a preventative measure, you'd tend to use it where felt etc normally
fails first - like any joins and upturns, etc.

It is pricey - but works.

I had a leak at an upturn where the felt goes under the flashing and
repaired it with Aquapol, as the rest of the felt looked ok. Has lasted 5
years and counting.

Just a thought, but I suppose it could be used to coat the "low bits".
I don't think the roof is felt incidentally, it's smooth with none of
the grit that accompanies the normal roofing felt.

I would think the paint may have some beneficial effect, if it
reflects the sunlight.

Would a combination of the two be beneficial do you think?

I suppose having bought it, I have a bit of a bee in my bonnet as far
as the paint goes, I suspect that silvery bitumen paint would have a
very limited appeal anywhere else in the house :-(

AB