Defining Waterproofing a Basement.
February 26, 2010
What are basement waterproofing systems and how do they work?
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.
From this list the most vital point is the top one - the vast crater dug in the earth
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. 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. Sometimes, creating a problem is the drainpipe that gets full of silt contained in many systems when waterproofing a basement. The water is naturally bringing all sorts of suspension with it. 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 kind of situation is persistent because the tubes that should drain the excess water eventually deteriorate.
A lot of the time a huge mistake is made by not providing access to these pipes. To keep water out of a basement waterproofing is also applied to the external walls. 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. 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 reputedly a better system when they are installed internally, have 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:
- 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.