Defining Waterproofing a Basement.
Sunday, January 25th, 2009What are basement waterproofing systems and how do they work? Let’s take a look at the time and tested waterproofing of basement and how it works.
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.
From this list the most vital point is the top one – the vast crater dug in the earth
When basement walls are constructed there is an area outside the walls that must 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.
This area is going to have water constantly seeping into it. 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. It’s natural enough, the water is bringing all sorts of suspension with it. 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. If there are crevices in the walls, water will push through even if the basement walls are waterproofed.
This kind of situation is persistent because the tubes that should drain the excess water eventually deteriorate.
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.
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.
To Waterproof a basement is reputedly a better system when installed internally, having easy access ports for removing any silt and can be applied to basements where traditional tanking or other methods have failed but with minimal disturbance to the original basement.
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:
- not disturb the exterior appearance of your home
– an approved method by home loan lenders
– more affordable than other methods
– stop water through the floor and walls
– a permanent or long term fix
You should look at waterproofing not as an expense but as an investment in the value of your home.