Foundation waterproofing is a significant part of house construction. And one of the bad situations you can face as a house owner is flowing water into the house.
However, every house owners and builders do everything they can to avoid this situation. Of course, it can be more expensive work. But that cost is cheap than repair the foundation after few years from the house build.
And it is a way to build a quality house at once.
In this article, I will discuss everything about foundation waterproofing and how to keep your house dry.
Mainly focus on waterproofing methods and products.
What is foundation waterproofing?
Foundation waterproofing is a process to avoid water flowing into the ground floor from the outside.
It has an installing system to prevent water ingress to the structure and better deal with hydraulic pressure.
So you want a system to keep water away from the house and also safely remove any rainwater.
There are few ways to protect your house from the water, and you can choose the best system and method according to your construction.
And for more satisfaction, you can combine two methods to ensure protection.
Before start, you need to find out the definition of a foundation wall. It will help to understand waterproofing options.
What is a foundation wall?
The Foundation wall is part of the structure that is below the ground and retaining the soils.
In other words, the foundation wall is connecting with the earth.
Usually, they can build with concrete or random rubble masonry.
And otherwise, foundation walls can be known as a basement wall.
If it has a basement or cells on another side of the wall.
In new construction, they can build on slabs or bases, which can be about 2 meters high on average.
The foundation walls can consider part of the property that is in the ground. But does not create a suitable space for habitation.
It is more common in older houses, and walls can extend to one or more meters into the ground.
In these ground retaining walls can happen wet issues that need treatment for it.
Why need foundation waterproofing
Home improvement does not limit to what you see and what you consider.
When wiring your house and arranging plumbing pipes, those can get improvement with hiding.
Foundation waterproofing cost is another unseen improvement that will help protect the house and make it too comfortable. But some peoples are ignoring it, because of the hiding nature of the basement and ground floor.
Let’s find out few reasons why you should do it.
Avoid the risk of flooding.
Flooding is a real risk in all countries in the world. It will take only one decent storm to make a swimming pool in your basement or ground floor.
So waterproofing reduces the risk of flooding, protecting the walls from water. And the water can safely redirect to the drains.
If you waterproof your foundation, it can away more water and keep the foundation and wall dry.
Keep the basement dry with foundation waterproofing
While every house has not a basement, but every house owner will appreciate having a dry home.
In this case, foundation waterproofing products will give dry houses, reducing the amount of water that seeps into the home. It can divert while adding a waterproof barrier.
As a result, you can use the basement for anything like storage or something like that without any issue.
It allows you to use your basement without worry about flood, leaks, or moisture.
Reduce overall moisture.
The moisture can cause your home to heat up in the summer. And oxidizing on the metal surfaces, damaging paper products, and can reduce the comfort of your home.
The first thing you can try to reduce the moisture in the house is foundation waterproofing.
Because water is trying to travel upward in evaporate. So a house with a wetland can be wetter than a home with a dry foundation.
Foundation waterproofing will protect your home
Water and housing rarely mix unless that water is in a controlled environment. It is a fact you have to face both inside and outside of your house.
Waterproofing your foundation can prevent water from leaking into the home and minimize damage to walls and wall paint.
New construction foundation waterproofing also helps to protect the outside of your house.
It ensures the land where the foundation is sitting is not shift and reduces foundation issues and leaks.
And the waterproofing makes a smart home.
A waterproofing foundation and walls are the best investment that you can make for your house.
It keeps the inside dry and protects your expensive structure for a long time.
Type of waterproofing
Few waterproofing methods use in the construction industry.
The following waterproofing methods are commonly used for house construction.
And also heavy construction.
Method 01 – Cementitious waterproofing
The cementitious waterproofing method is one of the easiest ways that can use in construction. The materials for this easily can find from material suppliers and easy to mix and use.
This method usually uses for internal wet areas like toilets and bathrooms. These foundation waterproofing products are usually rigid or semi-flexible.
And it is not exposed to the sun or weather. Because it uses for interior surfaces.
So the cementitious waterproofing method does not go to the expansion process.
Method 2 – Liquid foundation waterproofing membrane
The liquid waterproofing membrane is a thin coat, and it has primary and secondary coats. And it applies by spray or roller brush.
It allows more flexibility than cementitious waterproofing.
The liquid makes a rubber coating on the wall. The quality of the product can reach high as 280%.
The durability of the foundation waterproofing products can depend on the manufacture and used materials for manufacturing.
A liquid waterproofing membrane can be a spray-coated liquid film consisting of polymeric modified asphalt.
And the different grades of the trowel, roller, and spray for liquid waterproofing. Also available from the various manufacturers.
Method 3 – Bituminous coating
Bitumen foundation waterproofing is a coating method used as a flexible and waterproof coating.
According to their formulation and polymer grade.
Its flexibility and water protection can affect the polymer grade as well as the fiber strength.
The bituminous coating can call as another name is asphalt coating.
Screed concrete and specially designed footings are the most common application of these products.
And it is a perfect protective coating on concrete surfaces.
Bitumen coating products are making using bitumen-based materials, and it is not suitable to expose the sunlight.
It becomes a little damage when long time exposed to sunlight. So it modifies with flexible material to avoid damage to the product.
The flexibility of the bitumen always depends on the content added to the polymer material.
Method 4 – Bituminous membrane waterproofing
The bituminous membrane waterproofing method is a popular method for active surfaces like the roof. So it is not only for foundation waterproofing.
This membrane product has a torch on the membrane and a self-adhesive layer to fix.
The self-adhesive layer has asphalt and polymer. To improve adhesive characterize sometimes add resins and oil for this membrane.
The self-adhesive membrane quality can reduce with time. So this type has low life.
This product has two types. One is with cover to the torch the other one is without a covering.
Exposed membranes often contain a whole range of mineral particles. And are resistant to weathering and other types of membranes.
The contractor must apply one protective piece to prevent the membrane from leaking.
Method 5 – Polyurethane liquid membrane
The polyurethane liquid waterproofing method is typically used for flat roofs.
Also, this waterproofing method more expensive than others. So not use for foundation waterproofing.
But in any specific situation, it can use for it.
Polyurethane liquid can give more flexibility. So it can use for any complex surfaces.
This material is too sensitive for wet in the surface that uses in. So before applying the material, you need to dry your concrete surface well. If not, it can destroy with time.
What is a foundation waterproofing membrane?
As a part of the foundation waterproofing process, you have to apply a foundation waterproofing membrane.
This membrane works as channeling water away from your foundation walls. And a protective layer for the primary waterproofing membrane.
Water pressure also prevents damage from going against the structure.
There is some key to consider before applying the foundation membrane.
This membrane is usually making in plastic, and it has a stud profile to drain down any water. Then water can enter the drain or any ground and can channeling away to a suitable place.
You need to select a membrane with an essential fabric layer to prevent it from entering the foundation drainage system. And causing blockages and other problems.
As an extra benefit, this membrane protects your primary foundation waterproofing product.
By using a foundation membrane, you will get primary and secondary waterproofing protection for your foundation.
And by using these two methods, you will minimize the risk of defects and mistakes.
All waterproofing methods are flexible. It ensures that the waterproofing membrane of the foundation will protect any unstable building.
How to do
One of the worst things that can happen to residential or commercial buildings is foundation problems.
Foundation is the most important thing of the building, literally what house build on and how to keep building is standing.
Having to fix the foundation issues that mean you have to do more expensive work. And overwhelming intervention process.
In most cases, water is the dangerous reason for foundation issues.
There are mainly two reasons:-
- Wet foundation soil can lose strength.
- Wet interior areas can make an unpleasant feeling for residents.
So new construction foundation waterproofing is too important.
Foundation was making of reinforcement concrete, and it is not water-resistant. And it comes with few cracks in the settlement stage.
The water is kept outside from the house.
But vapor and moisture can penetrate. That is enough to make a large construction issue.
The main goal of waterproofing is to keep water away from the house.
The achievement of that goal can achieve based on four factors.
- Geographic location
- Soil/ Water table conditions
- Depth of foundations
Invest your money and time for concrete foundation waterproofing during the design and build stage.
It will be best more than return to the excavation and fix the problems.
It is critical to do right it the first time. You have to build a waterproofing barrier to do this easily.
In addition to building the proper walls of a water protection system, there are several essential elements. Those are,
- Install the drainage system: Ground and underground level.
- Install the waterproofing barrier.
These are dealing remove the water in underground and ground surface of the foundation area.
Someone says there is no implement a drainage system before do the foundation waterproofing. It is true.
But remember, foundation waterproofing products manufacturers do not guarantee their products without a proper drainage system.
So follow these to get a better drainage system for your house.
- Install gutters and downpipe systems to away water that comes from the roof.
- Well compaction the soil near the foundation wall areas.
- Create the slope to away rainwater from the house area.
- Keep in mind that the ground can change around the house with time. So remember to check the soil from time to time.
Installation of the waterproofing barrier
The next step consists apply the waterproofing barrier to the foundation walls.
Before doing that, we need to check the concrete surfaces carefully and repair the crack wider than 6mm.
Also, get success result of foundation waterproofing products, it requires clean and pure dry surfaces.
So remember to remove all dirt, loose and weak material from the concrete surface.
Several products can use for waterproofing.
- Bitumen modified felts.
- Cementitious coating systems.
- Elastomeric systems.
- And more.
As in any job, safety should always be our focus.
Even more, the nature of the intervention involves having certain elements that can harm the people involved.
When laying waterproofing foundations, there are various factors to consider.
- Flammable materials
- Skin injuries
- Eye Injuries
- Injection hazard
- Respiration hazard
Some water protection materials are liquid-based.
Which means that they must keep away from any source of ignition.
Also, it is too dangerous for those products to come into contact with users’ skin or inhaled by the waterproofers.
In this article, we discuss all of the waterproofing and foundation waterproofing.
Some of these waterproofing methods you can try DIY. Some styles require specialist involvement.
However, keep in mind keep your safety during the waterproofing.
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