What are basement waterproofing systems and how do they work?
To answer that question, let’s first look at historically conventional basement waterproofing and how it is supposed to work.
If you imagine how a basement is first built, when the house it is sited in was first conceived, then basically the following happens. A big hole in the ground is dug, the footer or foundations are laid, the walls of the basement are built and then the rest of the house follows.
The important point to note is the first one in the list above - that big hole in the ground.
The construction of basement walls invariably leaves a void on the exterior which requires backfilling. This void gets filled with loose backfill. No matter how well the backfill is compacted, it is still backfill and water seeks the places of little resistance.
Water will continuously seep into this area. The conventional way of waterproofing a basement provides some form of drainage pipe for this water to drain away, but the problem with this is that often these pipes get silted up. As the water comes it brings all sorts of suspension with it and that is to be expected as it is natural. When these pipes get filled the system overloads and a lot of water pressure gets applied to the outside walls of the basement. If there are crevices in the walls, water will push through even if the basement walls are waterproofed.
The problem of this type is not easily rectified. The reason is that the pipes which are supposed to take away the excess water are gradually getting deteriorated and worsen over time.
A huge problem is that often there isn’t access to these pipes. Basement waterproofing is also applied to the external walls of the basement to try and keep the water out. Usually this is called a tanked system.
A better basement waterproofing system, such as the drained cavity basement waterproofing system, works by getting rid of the water pressure on the walls. To move water away from your property; it first must be collected and sent through drainage channels to a sump pump or a natural drainage field.
Waterproofing a basement is a better system when they are installed internally and have easy access ports for removing the silt etc. It takes minimal disturbance to the original basement where traditional tanking or other methods have failed.
So to summarise, a good basement waterproofing system will:
- usually be a permanent or long-term solution
- stop both ways by which water can enter through the walls and up from the floor
- not disturb landscaping, decks, patios, driveways, etc
- usually be an approved waterproofing method for home loans
- often be substantially cheaper than other waterproofing methods
You want to be sure to choose a reliable waterproofer for your home, keep in mind that it will greatly increase the value by far more than what you initally paid.
In conclusion, you want a basement waterproofing system that will deliver:
- a permanent or long term fix
- stop water through the floor and walls
- not disturb the exterior appearance of your home
- an approved method by home loan lenders
- more affordable than other methods
You should look at waterproofing not as an expense but as an investment in the value of your home.