Ventilated crawl space: water repellent treatment of walls?

[hic]

Do you want me to contact God?

ps: for quotes https://www.econologie.com/forums/quotes-et- ... t6185.html

god it's you

[Christophe]

No, I'm just his servant ...

ps: please be serious about quotes ...

[bpval]

Hi Christof

Water must be channeled

Two solutions

1) Like at home (ugly house in nasty concrete)
Total peripheral drain with drain + perforated drain pipe + ballast + bidim sock + black product on wall ( ) + hourdi + bidim + look of visit ... but good not good for at home ... in ten years you are still there.
At the bottom I have a 7m embankment and it works ...

2) Check that it is indeed good outside water that condenses on your walls and not by the water in the ambient air saturated in rainy weather.
If it is outdoor rainwater, you can consider an indoor sump and collect the water in a mini-sump + pump

A damp wall .. not good for the house

Or your product ... but skeptical

Hello

[Christophe]

Treating at the source would obviously be the best thing to do but apparently I have formulated my problem poorly:

a) I do not WANT and CAN not do earthworks ... the house is 1/2 entry and dig 4 m you know what it costs? And I'm not talking about the risks of stability for the house!

b) the infiltrations are not so terrible as that (there is never a puddle ... simply the walls of the crawl space are very often wet)

c) a crawl space is normally made to "absorb" these humidity problems and prevent capillary lifts (in addition to thermal insulation)

d) if nobody formally advises me against waterproofing these walls, I would do it. For the moment I have not read any formal counter opinions ...

[hic]

Treating at the source would obviously be the best thing to do but apparently I have formulated my problem poorly:

a) I do not WANT and CAN not do earthworks ... the house is 1/2 entry and dig 4 m you know what it costs? And I'm not talking about the risks of stability for the house!

b) the infiltrations are not so terrible as that (there is never a puddle ... simply the walls of the crawl space are very often wet)

c) a crawl space is normally made to "absorb" these humidity problems and prevent capillary lifts (in addition to thermal insulation)

d) if nobody formally advises me against waterproofing these walls, I would do it. For the moment I have not read any formal counter opinions ...

hi Christophe

Of the "provisional / definitive which costs 0Euro?
You want some here!

Insulate the exterior walls with a plastic sheet pocket
with liquid flow in a bottle

1. The hydrometry will decrease in the crawl space
2. the wall remains visible and controllable
3. it's also an experience
which will allow us to understand the process
to follow its evolution.

4. the wall will stay healthier if we drain the water

AuR'voiR

[Christophe]

Uh pkoi not but what do you think of as a plastic bag? In addition, it should be perfectly glued to the wall and at all points ...

Not sure it was so cheap!

[hic]

Uh pkoi not but what do you think of as a plastic bag? In addition, it should be perfectly glued to the wall and at all points ...

Not sure it was so cheap!

hi Christophe

the system is to prevent infiltration water from evaporating
in all your crawlspace,

A simple, airtight and suspended box,
plastic is there

1. to collect the infiltration water in a bottle

2. but above all to contain evaporation

3. and let the wall drain the water to sanitize it

recycled plastic or very thin plastic should be suitable
we only want to stop water vapor
(in a place with little traffic)
Goodbye

[bpval]

Hi snag

Does takoi your simple box look like?

A photo ... a drawing ... a pdf ...
I am confused. Yneconaipas

Hello

[martien007]

The right solution is that of bpval.

But for that, it must be done during construction.

In my opinion, brushing the interior of the wall (concrete or aerated concrete?) Will not help. This remedy can even be worse than the disease, because it will prevent the moisture which rises in the wall from evacuating by the interior and thus go up even higher.

2) Check that it is indeed good outside water that condenses on your walls and not by the water in the ambient air saturated in rainy weather.

check also what bpval says! Is your water storage tank tight? is there not the possibility that water from this tank infiltrates through the bottom or the sides (even in a tiny way) and comes permanently to bring this humidity into the walls?

There are a posteriori drainage systems made by specialized companies. You can also search by google and you will find the solution.

for example here:

http://pagesperso-orange.fr/touristom20 ... _murs.html

[swift2540]

Good evening Christophe,
I quote, not want to be yelled at by the servant of god
That said, water or you channel it, or you prevent it from reaching your wall, it is the only effective solution.
15 years ago, I wanted to make a cellar wall "waterproof". Since the outside was the sidewalk, impossible to touch it. So I glued a roofing on 1/2 the height of the wall (wet), and painted the rest with white tar (dry wall). Result: The humidity rose and blew up the white tar, and as a bonus spread into the adjacent walls
So if you really want to do something from the inside, in my opinion, you should first
be sure the paint is breathable in the 2 sense
Then give it a try:
put the paint on 2 blocks high and make sure that the blocks above do not get wetter
@+