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.
In case you are curious to know how the basement is built, you will see that the idea was first conceived in the design and then the next steps follow. It starts with the digging of a big hole, then the footer or foundations are laid. After the base is done, the walls of the basement are built and then only the rest of the house is constructed.
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. Loose backfill is used to fill in the gap. No matter how well the backfill is compacted, it is still backfill and water seeks the places of little resistance.
Water will constantly ooze into this area. Typical ways of waterproofing a basement utilize water drainage pipes that often become silted. It’s natural enough, the water is bringing all sorts of suspension with it. When these pipes get filled the system overloads and a lot of water pressure gets applied to the outside walls of the basement. Water will work its way through even the smallest gaps, even though basement walls are waterproofed in some way.
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. This is also 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
While you are getting the house made you need to realize that waterproofing is more of an investment in the value of your house rather then an expense.