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.
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. 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 constantly ooze into this area. Sometimes, creating a problem is the drainpipe that gets full of silt contained in many systems when waterproofing a basement. As the water comes it brings all sorts of suspension with it and that is to be expected as it is natural. The system can overload if the pipes get over-filled and then the pressure of the built up water would be concentrated on the outer basement walls. So while the walls of the basement may be waterproofed in some way, water, as you probably already know, will usually find a way through the tiniest of gaps.
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.
A lot of the time a huge mistake is made by not providing 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 often referred to as a tanked system.
The drained cavity basement waterproofing system is a better system that works by getting rid of water pressure in the walls. To protect the property water is controlled, collected and then made to pass through hidden drainage channels which are either natural drainage or sump pumps.
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
Choose a reputable basement waterproofer when protecting your home, remember it is economically foolish not to waterproof, because the increased value from waterproofing will definitely exceed the cost of the waterproofing.
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
Waterproofing your home is an investment in its value.