Monday, March 25, 2013

For those looking for exterior bentonite pressure injection for waterproofing you've found the right place.  Exterior waterproofing using bentonite was discussed on the Home Improvement Show with Lindus Construction on WCCO Radio Saturday Morning with the experts agreeing that stopping water on the exterior (with bentonite) is the best way to truly waterproof your foundation.

The example presented was a wet basement floor leaking from the seam the floor and wall make.  In most cases this is a cold joint with no gasketing meaning that it's two pieces of concrete installed at different times.  Once the water pressure outside is high enough it will push water through this area.

Using a waterproofing mix of all-natural bentonite, Great Lakes Waterproofing fills the water-pathways, once the bentonite sets up water cannot pass through it, creating a waterproof barrier.  More water pressure just pushes the bentonite tighter against the foundation.

For new construction we can install a bentonite membrane before the concrete is poured.  We overlap all the seams and cover everything below grade.  Once backfilled this is one of the most durable types of waterproofing known.

5 comments:

Avery Schlacter said...

Does anyone know where I could get some waterproofing in Winnipeg for my basement?

sive said...

You should be able to find bags of the bentonite powder at a gravel and concrete
Business. I have bought some to mix with dirt to then apply against the house foundation to create a slope diverting water away and sealing as well. One part powder five parts dirt.e

Booker DeWitt said...

I recently had my house under go the process of waterproofing in winnipeg. It's nice to have the peace of mind, that it is taken of.

Great Lakes Waterproofing said...
This comment has been removed by the author.
Great Lakes Waterproofing said...

Hello Avery and Booker, looks like Primal Contracting in Winnipeg is hard up for jobs so they have to spam another companies website.

Instead of complaining lets use this as a teachable moment. Primal Contracting's Website is only one page and doesn't list much info except the video of foam board being applied to a wall that's been coated with an asphalt coating. The installer is also standing in pea gravel that's usually used to allow water to drain down into an exterior pipe system, and in this case they are using a fluted black plastic 4" pipe.

Down here in the U.S., wall coatings with asphalt as a component like this are considered "damp proofing" which is different than "waterproofing."

Foam board "waterproofing" might be one of the most difficult products to fix once it fails (usually 3-5 years in our experience)because water tends to get behind it and find the nearest crack. The asphalt coating will not bridge cracks (just look at a blacktop road) and now with water entering through the top (really close to grade level or somewhere below grad, we really have a major problem because the foam holds it next to the wall.

Don't get me started on the "pipe" system used, I can crush it with one hand, what's hundreds of pounds of dirt going to do...Then there's the flutes which have a bad habit of collecting debris, clogging up the entire system.

The thing that is the most disturbing is the part with men down in the trench. South of Canada, OSHA Regulations requires bracing for trenches, why?, if the dirt collapsis, These job sites are extremely dangerous, just Google "trench cave-in" and you'll find most deaths are at foundation waterproofing sites. Here's a news report in Winnipeg, these guys were extremely lucky after they got buried. http://winnipeg.ctvnews.ca/video?clipId=1008165