A friend has a garage and the adjoining garden covers the lower 1/3 of the
left-hand wall.

Water comes in from the soil through the wall. Whatever waterproofing was
there is not working any more. The internal plaster is blown and there's
puddles on the floor.

Getting to the outside of the wall is not an option so I've been reading
about tanking. Seems like there are a few gotchas although the sites I've
read are all companies that can do the work...

Is it best to get a professional in to determine exactly what is required
and to do the work, or is tanking a relatively easy thing to get right?
I'm happy putting some effort in to do the job but would rather not if it
is too easy to make mistakes that mean the fix only lasts a short time.

On Tuesday, 29 May 2018 07:46:07 UTC+1, Scion wrote:
A friend has a garage and the adjoining garden covers the lower 1/3 of the
left-hand wall.

Water comes in from the soil through the wall. Whatever waterproofing was
there is not working any more. The internal plaster is blown and there's
puddles on the floor.

Getting to the outside of the wall is not an option so I've been reading
about tanking. Seems like there are a few gotchas although the sites I've
read are all companies that can do the work...

Is it best to get a professional in to determine exactly what is required
and to do the work, or is tanking a relatively easy thing to get right?
I'm happy putting some effort in to do the job but would rather not if it
is too easy to make mistakes that mean the fix only lasts a short time.

a diy job.


NT

Scion Wrote in message:
A friend has a garage and the adjoining garden covers the lower 1/3 of the
left-hand wall.

Water comes in from the soil through the wall. Whatever waterproofing was
there is not working any more. The internal plaster is blown and there's
puddles on the floor.

Getting to the outside of the wall is not an option so I've been reading
about tanking. Seems like there are a few gotchas although the sites I've
read are all companies that can do the work...

Is it best to get a professional in to determine exactly what is required
and to do the work, or is tanking a relatively easy thing to get right?
I'm happy putting some effort in to do the job but would rather not if it
is too easy to make mistakes that mean the fix only lasts a short time.



Read up on product info & systems rather than contractor's "tales
of foreboding"?

Seems to me you're going to need to manage that water (direct &
drain) rather than try to make your wall "impermeable" "for
ever"...
--
Jim K


----Android NewsGroup Reader----
http://usenet.sinaapp.com/

Scion pretended :
Getting to the outside of the wall is not an option so I've been reading
about tanking. Seems like there are a few gotchas although the sites I've
read are all companies that can do the work...

Water ingress cannot be sealed from the inside, pressure will simply
lift off any sealant used. It has to be done from the outside.

The only fix on the inside, is to allow it to collect and to drain it
away, with a waterproof membrane spaced away from the wall, to provide
a dry interior surface.

A bank vault I was involved with had a drain cut all the way around,
which led to a sump and a pump.

On 29/05/2018 10:29, Harry Bloomfield wrote:
Scion pretended :
Getting to the outside of the wall is not an option so I've been reading
about tanking. Seems like there are a few gotchas although the sites I've
read are all companies that can do the work...

Water ingress cannot be sealed from the inside, pressure will simply
lift off any sealant used. It has to be done from the outside.

The only fix on the inside, is to allow it to collect and to drain it
away, with a waterproof membrane spaced away from the wall, to provide a
dry interior surface.

A bank vault I was involved with had a drain cut all the way around,
which led to a sump and a pump.

Much as a cellar conversion. I'd suggest the OP gets a quote or two -
should provide some ideas on approaching the issue, and it may turn out
cheaper than they expect. I asked on a local forum for recommendations.

I'd consider it quite DIYable, but it has to be done properly, with the
right materials.

--
Cheers, Rob

On Tue, 29 May 2018 10:40:04 +0100, RJH wrote:

On 29/05/2018 10:29, Harry Bloomfield wrote:
Scion pretended :
Getting to the outside of the wall is not an option so I've been
reading about tanking. Seems like there are a few gotchas although the
sites I've read are all companies that can do the work...

Water ingress cannot be sealed from the inside, pressure will simply
lift off any sealant used. It has to be done from the outside.

The only fix on the inside, is to allow it to collect and to drain it
away, with a waterproof membrane spaced away from the wall, to provide
a dry interior surface.

A bank vault I was involved with had a drain cut all the way around,
which led to a sump and a pump.

Much as a cellar conversion. I'd suggest the OP gets a quote or two -
should provide some ideas on approaching the issue, and it may turn out
cheaper than they expect. I asked on a local forum for recommendations.

I'd consider it quite DIYable, but it has to be done properly, with the
right materials.

Thanks for the comments, people.

On Tuesday, 29 May 2018 10:29:42 UTC+1, Harry Bloomfield wrote:
Scion pretended :
Getting to the outside of the wall is not an option so I've been reading
about tanking. Seems like there are a few gotchas although the sites I've
read are all companies that can do the work...

Water ingress cannot be sealed from the inside, pressure will simply
lift off any sealant used. It has to be done from the outside.

The only fix on the inside, is to allow it to collect and to drain it
away, with a waterproof membrane spaced away from the wall, to provide
a dry interior surface.

A bank vault I was involved with had a drain cut all the way around,
which led to a sump and a pump.

Draining may be the better option, but lots of old houses have tanked cellars that, while not perfect, are good enough.


NT