Saber Concrete Repair can also provide solutions to other common problems.
- Bulkhead Entries: Common source of water infiltration in many basements. Most bulkheads are made from a separate pre-cast concrete stair piece which is bolted to the outside of your foundation. This junction between the bulkhead and your wall is one problem area. Special gaskets are supposed to be used at these junctions but do very little to stop water.
A metal door piece is then attached to your house as well as the top of the concrete bulkhead. The junction where this door sits on the concrete is another problem area. It is a tough joint to seal properly because the sealant material must stick to both metal and concrete. Not to mention it is an exterior joint exposed to rain, snow, and sun.
We use only commercial grade Epoxy and Urethane sealants for bulkhead waterproofing. Between the years of concrete sealing experience and access to the most advanced repair materials on the market, you can be confident you are getting a quality long-lasting repair.
- Tie Rods or Snap Ties: Metal rods that extend through your wall which are used to help hold the concrete forms in place while the concrete is poured. This rod does not get removed and is left in place. Since it goes through the wall, some ties can leak if the exterior damp-proofing membrane doesn’t seal them off.We use either an Epoxy sealant or grout foam injection to stop these from leaking. They are not major sources of basement water seepage but can be problematic if weeping behind a finished sheetrock wall.
- Cold/Construction Joints: Seams where two separate pieces of concrete meet. The most common condition creating one of these joints is when an addition to a home is built that also has a foundation to it. The junction where the new concrete for the addition meets the old foundation is a natural weakness for water penetration.These joints are repaired using Urethane Grout injection. Expansive urethane foam is injected between the two walls into the seam and allowed to expand into a tight waterproof gasket.
- Honeycomb/Unconsolidated Concrete:
Hardened concrete that did not cure into a completely solid section. These porous areas are very noticeable because you can see holes and spaces going into the concrete wall versus a smooth, flat solid surface. If these areas continue through the wall, they can allow water to pass through them entering your basement.The fix depends on the severity of the unconsolidated area. If small enough, urethane grout can be injected, similar to a crack. The surface would be patched and sealed allowing the expansive properties of the waterproofing foam to travel throughout the unconsolidated area and into the earth behind thewall. If the area is large, traditional repair methods may be used involving removal of porous area, forming and pouring new concrete to a more solid consistency.
- Exterior Waterproofing: Many think that the black membrane that is applied to the exterior wall, prior to backfilling a foundation, is a “waterproof” membrane. It is not. It is called a “damp-proofing” membrane and its purpose is to create a separation between the concrete wall and the wet, damp earth. Concrete is a porous material and will absorb water if left in contact with it long enough. Without this membrane, your foundation wall would soon absorb large amounts of water from the damp earth and attempt to dry itself by releasing this moisture into your home. These water-resistant membranes do a good job at creating a barrier against this dampness but do not bridge or seal cracks, seams, or utility penetrations very well.Positive side waterproofing repairs performed on the outside of a structure, are sometimes a good approach. When access to the problem area inside the basement is restricted due to utilities such as water/oil tanks and furnaces or maybe the problem is behind a sensitive area of a finished basement, an exterior solution my be your best choice. Sometimes, the problems lie just beneath the ground surface where minor digging is all that is required. Saber will discuss all your options to help you make a smart informed decision.