FAQS of Water Proofing

I live on a hill. Why do I still have a problem?
Believe it or not, the surrounding grade is only one of the problems that might create water seepage. It could just as easily be from cracks in the outside wall, a high water table, malfunctioning or non-existent drain tiles, an underground spring, or a host of other causes. Don't get me wrong, living high on a hill is nice; but it doesn't mean that you won't ever have a water problem in your basement or crawlspace.

Why do basements leak?
Wow, what a question. There's a number of possibilities, but here's a few: malfunctioning footer tiles; no footer tiles; cracks in the walls or floor; hydrostatic pressure building up under the floor or upon the walls; underground springs; high humidity; poor sealant on the outside walls; no sealant on the outside walls; improperly installed waterproofing; leaks from sweating pipes in the basement; leaks through basement windows; leaks through siding that run down through the wall and just look like a basement leak.

A water proofer told us that outside work isn't really necessary. Is that true?
Probably not. Some contractors might tell you that, because all they do is interior work, and they want you to believe that sealing cracks on the outside of the wall is unnecessary. But does that sound reasonable? Look at the picture to the right. This house has open cores all around, and no interior system would completely resolve this problem. You might not see any water, but you would still have water, dirt, air and bugs coming into the walls.
I have mold on the walls. Should this concern me?

Absolutely! This could indicate either moisture problems, or water problems. At the very least, mold is a potential health hazard that is growing in importance these days, as scientists find out more and more about its effects on humans. For more information on these effects, click on the following links:
I have a crawlspace. I'm safe from leaks, right?
Sorry. You may have better odds, because the crawl space isn't as deep as a basement is. But crawlspaces leak, get moldy, and have problems just like basements. And since they hold up the house, just like a basement does, you need to resolve those problems if they arise.
It only leaks in one area. Can I just fix that?
Sure, you could, and it rare circumstances it might even work. But think about it this way: water follows the path of least resistance. If there's water pushing in, and you fix that one spot, where do you think the water (it's still there!) will go next? Right, to the next most convenient place to enter. We've seen homeowners spend massive amounts of money, repeatedly trying to chase a small leak around the foundation, and never addressing the real issue – that it's time for waterproofing repairs. It's usually more cost efficient to find out what's wrong, and fix the source of the problem, right from the get-go.Why is it leaking? Is it just a downspout, dropping water next to the foundation? Or did the original waterproofing fail for some reason?
It only leaks after a heavy rain. Can I use a waterproofing paint to fix it?
No! Waterproofing paints are designed to seal walls, to prevent moisture from passing through. Moisture is totally different than water seepage. Look at it this way: if you had a leak in your roof, and you used waterproofing paint on the ceiling to stop the leak, would the roof be fixed, even if it stopped leaking? The answer, of course, is no. You'd still have to have the roof fixed properly, even though the water may be stopped for a while.
It's the same with waterproofing basements. You might be able to find a paint that will stop it temporarily, but the water is still there, pushing on the wall or floor. It won't go away all by itself. You need to find a way to remove the water, because its not supposed to be there.
My house is 20 years old. Why is it starting to leak now?

As homes age, they need maintenance and repairs. You re-do your roof after 15 – 20 years, and consider it normal. You paint, and replace appliances, because they wear out over time. The same goes for foundations. The original tiles fail, or become clogged, or the sealant that was put on the wears out and begins to crack. Or, conditions in the ground may have changed the way water is flowing under there, and the original system is not equipped to deal with that.

What is the minimum lap requirement between a DPC and a DPM?

In accordance with the Code of Practice, there should be a 50mm minimum sealed overlap between the DPC and the DPM.

What is the method for laying a ground level DPC?

Lay the DPC on a full fresh bed mortar, DPCs should always extend to the full width of the leaf. An additional bed of mortar is then laid on to the DPC followed by the appropriate brick coursing. It is inevitable that the bed thickness at DPC level will be greater than the standard 10mm joint.

What is Newton 500 Water Proofing System?

Newton System 500 is a waterproofing system based upon our range of cavity drain membranes, drainage systems and pumping systems. Unlike conventional ‘tanking’, Newton System 500 is not attempting the almost impossible and trying to hold water back, but places designed maintainable depressurization voids at known weaknesses in the structure so that ingressing water is simply captured and diverted out of the property.

How do Newton waterproofing systems work?

Newton waterproofing systems are designed to accept water that enters at known weaknesses in the structure by strategically placing voids at known points of water ingress. Newton Base drain is placed at the wall/floor junction and Newton Floor drain is placed above horizontal construction joints. The voids created depressurize the water and divert it to safe forms of drainage such as Newton pumping systems or gravity drainage downhill of the slab/raft. Newton waterproofing wall and floor membranes are installed to the walls and floor to create a separation layer between the wet/damp outer structure and the dry habitable area.
Some say you have to dig on the outside for the waterproofing job and others say this is not true?
Due to new waterproofing products that can be applied on interior walls it solves many of the water problems not available before, and an outside "French drain" with a sump pump was used. Try one of the new coatings available at building supply stores.

How can acrylic coating be good waterproofing?

These materials are actually a U.L. Approved waterproof membrane and liquid roofing system. Unlike other coatings, GLOBAL Encasement, Inc. materials breathe, and have excellent elongation and flexibility. They can move with the substrate and have the ability to allow moisture vapor to be released without cracking. The coatings are intelligent in that they have memory, and can reattach themselves to the substrate.
Should I have the outside of my basement walls sealed?

No. This work was done when your house was built. It didn’t work then and it won’t work now. The sealing of basement walls on the outside was never meant to be a permanent solution. We install a “self-flushing” system that works regardless of water tables, slope of terrain, or normal soil conditions. The B-Dry® Waterproofing System works whether your problem is leakage from the cove, floor, walls, window wells, or all of these. Why put up with the aggravation caused by basement water leakage?

Do we require adding water proofing materials in normal concrete construction?

Normal concrete construction should not require water proofing materials, if it is designed and constructed properly with good quality and workmanship.

In what forms water proofing materials, available?

Water proofing materials are available in powder and liquid forms. It is advisable to buy water proofing materials of reputed companies.