How do waterproofing systems work in the basement and what exactly are they?
For answering that question it will help to first take a look at historically conventional basement waterproofing and the way it was 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.
That big hole in the ground, the first on the list above is important to note.
When the walls of the basement are built, there is always a gap left outside the walls which needs to be filled. Loose backfill is what is used to fill this void. The problem here is that water looks for the path of least resistance, and you’ve just given it just that with a huge pile of loose backfill, no matter how well it’s been compacted.
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. Allowing these pipes to fill up, can result in an overload of the system, which can be catastrophic to the basement’s outside walls. If there are crevices in the walls, water will push through even if the basement walls are waterproofed.
This type of problem doesn’t usually go away because the pipes that are supposed to take away the excess water gradually worsen over time.
Many times there is simply no access to these pipes which is a huge oversight. To keep water out of a basement waterproofing is also applied to the external walls. This is often referred to as a tanked system.
If you want to find out if you have water inside the concrete block of your walls simply tap a hole into the concrete block, near the floor, and see if you have water coming out of this block then you may want to consider a drained cavity waterproofing system this system drains the water from your walls, much the same way you just did, by adding drain holes in the bottom blocks that allows those areas to drain into a type of interior french drain system. Water is controlled, collected and allowed to flow through hidden drainage channels either to natural drainage or to a sump pump where the water is removed away from the property.
Waterproofing a basement is when they are installed internally, have easy access ports for removing silt, and can be installed in basements where 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.
