Patch Foundation Leak
Waterproofing Fixing Basement Foundation Leaks,The right way to fix a leaking foundation with Case.
We can usually repair this type of leak without having to tear apart your beautiful basement. Quite often the problem is simply a small crack in the foundation.
Oct 21, 2011 - The Holmes crew seals a leaking block foundation. shingles at once than to do a patch, and that s why spot repairs on your foundation can be.
Crack repair exterior wall crack leaking foundation crack basement. i have to fix an underground foundation.
Steps
1Edit step
Inspect and identify source of leak i.e. crack in the wall, leaking window, etc. Look carefully at organic surfaces such as wood, drywall, and carpets in a finished basement.
Dig down 6 feet 1.8 m to the foundation all around outside of the house.The width of the trench should be enough for doing some other steps on the bottom. You need enough space for patching the foundation and installing draining pipe.
3Edit step
Pressure wash foundation and let it dry. Use heavy duty brush to clean up the surface of the foundation if water presser does not clean up all dirt from the wall.Make a slight incline in the patched area, slanting it from the floor upward toward the wall. This provides extra strength to the patched area and helps drain away any moisture that might accumulate in the future
4Edit step
Patch the cracks.Apply small amounts of the cement mix into the chipped-out area and smooth it out with an ordinary trowel.
5Edit step
Apply waterproofing paint sealer.You can purchase epoxy or latex waterproof mixes for treating walls. Most of these mixes require you to add only water. If you use this type of mix, be sure to follow the manufacturer s instructions carefully.
6Edit step
Install waterproofing membrane. Dimpled Membrane is made from tough, long lasting plastic that keeps exterior moisture out. It prevents back fill material from touching the foundation wall and bridges typical wall cracks with ease.
7Edit step
Run drainage pipe around the foundation to insure ground waters stay away from the walls.As seen in the picture, a footing drain rests just outside of a house s foundation. Most often, this pipe is laid in a bed of loose gravel meant to keep dirt from entering. The pipe is thick, with 1/2 spaces in it, and stone is laid on top of it.
8Edit step
Fill the trench with soil that you took out before. compress the soil every
Give us 3 minutes of knowledge.
Tips
Even if you are dealing with a single crack in foundation it is better to do all around because you may have another crack in your basement but not visible.
Do not throw away the soil from the trench, you will use it later. Put it on the drop sheet if you have nice lawn around the house.
Warnings
Be prepared for heavy exercises when you dig. This is most difficult part of this job, especially if you do not have digging machine or several people that can dig all day long.
Sources and Citations.
Leaking basements, aside from causing costly property damage, could lead You need enough space for patching the foundation and installing draining pipe.
Most builders would agree that water leaking into the basement is a common will require an epoxy or urethane injection if they continue to leak after patching.
Repairing a foundation leak is not a hard or an expensive job, but it is very important. If leaks appear in the foundation and are left unfixed, major problems might.
Mike Holmes: Five tips for patching basements
Let s say you ve discovered a leaking spot in your basement. Just one. That s how it usually starts. Homeowners have just one problem area, or they are only aware of one leak. So what should you do about it.
The dilemma most homeowners face is that one small leak doesn t quite justify the expense of an exterior waterproofing renovation. Because, believe me, it is a big, expensive job. The question I get over and over: Is a spot repair enough.
Just to be clear, a spot repair is when the foundation is excavated and exposed directly on the opposite side of the foundation wall where the leak is. And it can be a gamble that doesn t pay off. You might go through the effort and expense of trying to patch a spot, only to find that, at best, you ve put a Band-aid on the problem, or, at worst, you ve completely missed it.
I think most homeowners understand that specifically fixing one basement leak is a lot like fixing just one leak on a roof. Odds are, where there s one leak, there are more looming just around the corner.
The structure has allowed water through in one spot, and since wear and tear of building materials progress at different places, I will bet that another leak in another location will appear before you know it. That s why it s better to replace all your roofing shingles at once than to do a patch, and that s why spot repairs on your foundation can be a gamble for long-term dryness.
But let s look at patching a little more closely. There may be some merit to fixing just the one area. The foundation leak may be caused by an obvious problem that becomes clear as soon as the outside wall has had the dirt removed from it.
Exposing the exterior side of your foundation is extremely important. You need see the problem from the wet side of your home, to know for sure exactly what is causing the leak on the inside. And it could be several factors all combined that are creating too much water pressure against the foundation.
To do a spot repair, you ll need to have a trench dug eight to 10 feet across and right down to the footings. Once that s done, there are several things your contractor needs to investigate that might be causing the leak.
1. Is there an obvious defect on the foundation. A crack or hole. Are there tree roots or large rocks pressing up against the foundation.
If so, your gamble has probably paid off. Just remove the cause of the problem and repair the defect and then recoat with a foundation coating and replace the Dimpled Membrane. If tree roots are the culprit, then look around your yard. Are there other trees that are closer to other points along your foundation. More excavating might be required so you can correct that situation before it becomes a problem.
2. What is the condition of the weeping tile at the bottom of your trench. Are they crushed, or clogged with earth and tree roots. Or is there any weeping tile at all.
In this case, you have the opportunity to assess the overall condition of your tile. If it appears to be generally in good shape and just one area is broken by the leak, then congratulations. Your spot repair was a good choice. Just fix it and you re good to go. But if the weeping tile is toast, then you need to consider doing a more extensive repair and replacing the entire weeping system, or adding an extra weeping line that terminates at a French drain.
3. Is there enough gravel around the weeping tile. Or is the gravel choked with earth and all the voids between the gravel are filled in. You can never have enough 3/4-inch clear gravel around your weepers, and that needs to be wrapped in landscape fabric to prevent dirt penetrating the gravel.
4. What are the soil conditions around the home. Is it made up of topsoil with a sand base. Or is it mostly made up of clay. This important point is constantly overlooked. If the soil is black earth and sand, then good overall drainage is likely present. However, if there is mainly clay, then the water against the foundation is being pressed into the wall under extreme pressure by a substance that doesn t readily absorb water.
In this case, a spot repair isn t going to work too well, because the groundwater will find the next weakest point in your foundation to push through. But if you only do the spot repair, and add an overly generous amount of gravel to that area, the groundwater pressure should be eased off somewhat in and around that area, as the water fills the air pockets in the gravel. When your whole foundation is surrounded with clay, anything to help the situation is better than doing nothing.
5. What is the age and condition of the existing waterproofing treatment on the house. If the house is a century old, there may be nothing at all. If the house is 50 years old, there may be a parge coating with terracotta weeping tile, and there s a good chance it has stopped working effectively. That should be replaced with what is now standard building code: plastic flexible weeping tile with a fabric sock and surrounded by gravel with a coating on the wall and footings all protected by a dimpled membrane.
So spot repairs are not completely a gamble. In some situations, they can help, but there is no substitution for the peace of mind a complete exterior repair will provide. Your contractor needs to assess all the factors and discuss with you if it s worth the gamble of a spot repair, or if a more thorough foundation excavation and repair is needed.
Catch Mike in Holmes Inspection, Thursdays at 8 p.m. on HGTV. For more information, visit hgtv.ca. For more information on home renovations, visit makeitright.ca.
