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salitre barriers


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This plastic membrane that is rigid set along the outside cement or brick wall that is below ground level before backfilling eliminates moisture by allowing it to evaporate and by keepng moisture from the underground wall. The top part of the roll needs to be about 3 inches above ground level so it can breath. We installed it after construction and eliminated our problem (so far).

 

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On 9/19/2020 at 1:48 PM, AlanMexicali said:

This plastic membrane that is rigid set along the outside cement or brick wall that is below ground level before backfilling eliminates moisture by allowing it to evaporate and by keepng moisture from the underground wall. The top part of the roll needs to be about 3 inches above ground level so it can breath. We installed it after construction and eliminated our problem (so far).

 

chovadren-mano.jpg

How was it applied after the construction? Did you have to dig out the perimeter? 

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2 hours ago, Alpha1 said:

How was it applied after the construction? Did you have to dig out the perimeter? 

It should be put in place during construction and then backfill (we put 2 feet of crushed rock in the trench first) the underground level walls of the house and walls around the garden. We installed it 7 years later when repairing the water damage and had to dig a trench about 4 feet deep and wide enough for the workers to get down into it. Our property in not level but close to level so the walls in some parts of the house are elevated and the garden wall at the back is about 3 to 4 feet below street level but our garden is also that much below street level. We have the other side on that street raised and about 6 steps up to the front door. The side garage door is only 2 steps up. There are places where these walls were below ground level and that is where the barrier was installed.

Our house is between 2 streets in a "privada"  - almost 300 houses - which is cut into the side of a hill. There are places here where ground water flows underground as the hill is solid rock and quite large and above our "privada" is another large "privada" - about 400 houses plus 6 or 7 large apartment buildings above it on the top of the hill. Many houses here have water damage and I see workers repairing it after the house is about 7 or 8 years old. They built their houses at different times and some are still being built but only about 20 lots are still vacant.

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  • 4 weeks later...

"SALITRE IN YOUR WALLS?
The real term is efflorescence, this occurs due to a change in the pH of the surfaces, or the presence of mineral salts and is a very common problem and difficult to eradicate, here is the definitive solution from a professional specialist in finishes:

FINAL SOLUTION:
1: remove loose material.
2: Wash the surface with a 1 part hydrochloric acid to 5 part water solution.
3: rinse with purified water and repeat step 2 the next day.
4: let it dry and apply a solution of 1 part of white vinegar for 10 of purified water.
5: apply vinyl sealer (NOT ACRYLIC)
6: ready your wall will not have this problem again.
Source: Ing. R. Reyes / Proyect"

 

 

 

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1 hour ago, Laspan said:

Alan, would this work on Mexican floor tiles? When they are wet they look normal, but when dry turn splotchy white and chalky. 

I had a house in Mexicali with 8 inch saltillo tiles and wide grout lines that eventually did the same thing. I think it happened after the house was 30 years old. The finish wore off and the white fuzzy stuff probably was from mopping. I had a guy with an industrial buffer come in and wash the floor with a brush on his buffer with the furnishings out in the covered patio. The next day he rolled on a sealer which was slow drying. I think he said it was an epoxy sealer not regular sealer you do often. The next day he buffered it and it was shinny. It lasted almost 2 years before it wore off in the heavy traffic areas but the white fuzzy stuff didn't come back so I left it that way.

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On 10/17/2020 at 4:54 PM, AlanMexicali said:

"SALITRE IN YOUR WALLS?
The real term is efflorescence, this occurs due to a change in the pH of the surfaces, or the presence of mineral salts and is a very common problem and difficult to eradicate, here is the definitive solution from a professional specialist in finishes:

FINAL SOLUTION:
1: remove loose material.
2: Wash the surface with a 1 part hydrochloric acid to 5 part water solution.
3: rinse with purified water and repeat step 2 the next day.
4: let it dry and apply a solution of 1 part of white vinegar for 10 of purified water.
5: apply vinyl sealer (NOT ACRYLIC)
6: ready your wall will not have this problem again.
Source: Ing. R. Reyes / Proyect"

 

 

 

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Have you actually had success with this method? If so, for how long? I have found a solution using a Fester product, however, the problem only moves up from the previous fix.

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20 minutes ago, Alpha1 said:

Have you actually had success with this method? If so, for how long? I have found a solution using a Fester product, however, the problem only moves up from the previous fix.

My contrator repair 6" more all around the salitre área, because the salitre is inside and we can not see, but if you fix only the salitre área, they come Like 3" around in a couple months, he fix 4 years ago for us, and we don't have any salitre problems.

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1 hour ago, Alpha1 said:

Have you actually had success with this method? If so, for how long? I have found a solution using a Fester product, however, the problem only moves up from the previous fix.

We used the method of removing the plaster, then sealing it and replastering it. Yes, it appears further up in a few years and we did that piece but it is usually smaller in area. Twice we have had to do it and our house is less than 10 years old. The membrain was only installed about 5 years ago and that area was good when we had it done about 1 1/2 years ago on other parts. Almost every house I have been in has the problem.

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44 minutes ago, vista lake said:

My contrator repair 6" more all around the salitre área, because the salitre is inside and we can not see, but if you fix only the salitre área, they come Like 3" around in a couple months, he fix 4 years ago for us, and we don't have any salitre problems.

We never did that but makes sense. It took 3 to 3 1/2 years from the first fix to the second fix but we waited until well into dry season and it looked very bad in spots by then. In the photos of the repair last year the damage was above the last repair except on the bottom of the corner of the garden wall which was not there 5 years ago. He removed the plaster from the last repair on the house where it was sealed with black waterproofing because he felt like it.

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