redbrian |
04-12-2005 01:15 PM |
For treating from the inside there are two methods.
1) Chip away at the cracks (or holes), and then patch with hydraulic cement.
2) Inject the crack with hydraulic epoxy.
As to solutions, number 2 is the best way, but I don’t recall the name or manufacturer of the product. I used it some 10 years ago very effectively. It’s pumped into the crack and will actually follow the moisture filling the crack all the way to the exterior.
Now when you come to doing the outside work you need to consider whether you need to damp prop or waterproof. If you have good drainage and soil conditions, damp proofing is the way to go. That’s just a good drainage system and sealing the outside wall with something along the lines of Tamms Dehdratine 85 or a similar product.
However if you have a lot of clay in your soil and poor drainage you may need to waterproof.
This means going all the way to the footing to install the drainage system and in extreme cases installing a second drainage system halfway up the wall.
You will then need to install a membrane to the exterior wall this can be done with either MIRADRI 860 (a peel and stick, pain in the ass) or MIRADrain 6000 which is a heavy duty drain system for the wall.
The cost is around $5.25 a gallon for the Dehydratine which will cover about 25 sq yds a gal.
A 200 Sq ft roll of MiraDri 860 costs about $70
MiraDrain 6000 cost $0.75 a sq ft.
Good luck it’s a big job but best done by the home owner as most Waterproofing Companies are out to rip you off (worked for one for about 6 months).
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