How Does One Find Out How to Waterproof a Basement?

Filed Under DIY

What 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.

The important point to note is the first one in the list above - that big hole in the ground.

When basement walls are constructed there is an area outside the walls that must be filled. This void gets filled with loose backfill. Well compacted or not, introducing a huge pile of loose backfill is going to cause problems. Water will always flow in the path of least resistance.

Water will constantly ooze 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. 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 kind of situation is persistent because the tubes that should drain the excess water eventually deteriorate.

Many times there is simply no access to these pipes which is a huge oversight. In an attempt to keep excess moisture out basement waterproofing also can be put onto the outer walls of the basement. This is also called 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.

To Waterproof a basement is a better system when 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:

- 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

Waterproofing your home is an investment in its value.