Interior basement waterproofing may be necessary as a part of a complex solution for the external waterproofing or there are several technical solutions that allow interior waterproofing systems to work as independent solution when external waterproofing is not required. Interior waterproofing typically includes the following:
- Damp proofing
- Crack repair
- Injection into the structure of the foundation wall to convert it to waterproof material
Measuring of Wall Moisture Level
Just about all bench top moisture meters use what is often referred to as the capacitive method or RF dielectric method. With this method, a radio signal at a specified frequency is sent through the sample and as water interacts with radio waves (that’s how your microwave oven works) it is possible to determine the moisture content by measuring how much the radio signal is changed by the sample.
The effect that the sample has on the radio signal is termed the dielectric constant, and it increases proportionally to the moisture content. There are a number of other factors that have an effect on the dielectric constant, perhaps most notably sample density and temperature. These two factors are measured and corrected for in advanced moisture meters.
We measure the moisture conditions of the structural elements of the building (foundation walls, basement floors) to identify the proper solutions for each customer’s particular situation. We also measure moisture levels behind the drywall to make sure that we provide accurate information to our customers.
Development of the Proper Solution
Interior waterproofing is a complex solution, combining several different steps that work together to provide you peace of mind and make sure you can sufficiently use additional space (basement) of your house and at the same time to protect against destruction of the foundation – the most important structural part of your property. Depending on the conditions detected during inspection, we will suggest the most effective complex solution, combining all the necessary steps and / or excluding whatever is not required to make this solution not just technically perfect but cost-friendly as well.
Installation of Drainage System
To insure that underground water will not flood your basement, we have to make sure that the underground water level (table) is below the level of the footing of your house and your floor is not receiving water pressure from below. The weeping tiles (perforated drainage pipe installed at the level of the footing of the foundation wall collecting water from the ground and draining it to the city storm system or to the sump pump) is the one of the most critical solutions to solve this issue. We take care with cutting the floor and restoring it back to mint condition when we are finished to make sure that this process is as painless for you as possible.
One of the most important parts of waterproofing and making foundation structural elements safe in long term is a crack repair. These repairs are critically important from several aspects:
- Cracks are a perfect way for water to penetrate your foundation and get into your basement.
- Even after installation of the external waterproofing, humidity can appear inside the cracks due to condensation during the winter. The temperature when condensation appears is around 8C (its cold “condensation point”) and during the winter, when we have negative temperatures outside and positive temperatures inside, the condensation point appears somewhere in the middle of your foundation wall, which means that water starts to condensate right into your cracks and fills them in. This situation may have two negative effects: you will get wet walls in your basement again and when water starts freezing in the part closest to the outside (as the temperature in this part will be close to the outside air temperature when it’s below 0C) this creates additional damage in your foundation walls.
- If the humidity appears inside your foundation elements, it is going to “climb up” the walls as most older houses have no horizontal hydro insulation (the insulation on top of the foundation separating foundation blocks or concrete wall from the above-ground walls structure elements). This fact means that (especially in case of missing horizontal insulation) water will start damaging the structure elements of your walls (which in most cases are made of wood).
As per our explanation above, the repair of the cracks is a very important part of waterproofing process to make sure you have complete peace of mind after we finished our job and in the future you do not have to worry about any additional actions to keep your property dry, comfortable and avoid any potential damage. The technology we use allows us to stop the leaks even with non-stop flooding water. The components we are injecting into your wall react with the water / moisture in your wall and create a special expanding “foam” inside the cracks and fill them 100% to make sure that even the smallest air gaps and cracks have been eliminated, providing complete water-sealed structure.