Basements are often the most vulnerable area of a home when it comes to water damage. If your basement is used as storage, for living, or to do laundry, it can cause damage to the walls, floors, and even the structural integrity. By adding a membrane to shield the walls from moisture, you can stop water damage from occurring in your basement.
We will look at the importance of waterproofing your basement walls, as well as the different waterproof membranes and how they help to protect and ensure that your basement remains protected and dry.
Basement Waterproofing: Why It Matters
Since they are normally located below ground, basements are always at risk. The soil in the area around your home may retain moisture, especially after heavy rain or snowmelt. Hydrostatic pressure can then increase on your basement wall. This pressure causes water to seep out of cracks in walls and through porous surfaces, which can lead to mildew and mold.
A waterproof membrane can be used to seal your basement walls and prevent water from getting in. It can help prevent water from getting into your basement. The waterproofing process adds a second layer of protection. This is especially important if you’ve finished your basement and plan to in the near future.
Basement Wall Waterproof Membranes: Types And Applications
There are several different types of basement wall waterproofing membrane. Each type offers benefits that vary depending on the home’s needs, as well as the severity of moisture problems. The most common include:
1. Liquid Membranes
Liquid waterproofing is applied to the basement walls as a liquid and then cured to form a seamless, flexible barrier. This type of barrier is great for situations where you require a seamless and continuous waterproof layer. Liquid membranes cover uneven surfaces, cracks, and seams. Once applied, liquid membranes form an extremely flexible layer that contracts and expands with the wall.
Liquid membranes can be applied using a spray, roller, or brush. They’re usually used for areas requiring heavy-duty water resistance and can also be applied to new and old foundations.
2. Sheet Membranes
Sheet membranes may be manufactured from rubber, bitumen (or polymer), or other materials. They are then formed into large, flat sheets. These sheets, which are made of rubber or bitumen, are attached to basement walls via adhesives. This creates a sturdy barrier that prevents water from entering. Sheet membranes are known to be durable and resist high water pressure, making them suitable for areas experiencing significant moisture infiltration.
Sheet membranes tend to be easier for contractors to apply, though they might require a bit of extra time and attention to ensure good adhesion. When installed correctly, sheet membranes offer long-lasting security and can help reduce radon leakage in some instances.
3. Cementitious Membranes
Cementitious waterproofing membranes consist of a mixture made from cement-based materials. They’re applied over the walls of basements as a thick slurry. These membranes will work best for foundations subject to high water pressure. They have a strong bond with concrete surfaces, making them the perfect choice for older or porous walls.
Cementitious Membranes are relatively simple to apply. They can also be used outside. However, they need to be adequately prepared for the coating to adhere to. Once cementitious materials are applied, they form a thick, impermeable layer resistant to water.
4. Polyurethane Membranes
They are commonly used in large-scale residential and commercial construction. This type is highly resistant to abrasions and chemicals.
Polyurethane Membranes are usually applied in a two-layered system: a base coat and a finish coat. It is vital to apply the membranes with precision so that they bond properly and create a barrier.
Benefits of Using Basement Wall Waterproofing with a Membrane
Investing in a basement wall waterproofing membrane offers a variety of benefits to your home.
1. Prevents Water Damage
The main benefit is that waterproofing will prevent water damage. Waterproof membranes keep moisture out of walls before it can cause mold, mildew, or decay.
2. Improves Indoor Air Quality
Excessive moisture in the basement can result in poor indoor air, leading to musty odors and health concerns due to mold exposure. Waterproofing your basement helps maintain a healthy and dry environment, improving the air in your entire house.
3. Increases Property Worth
A waterproofed, dry basement is an attractive feature for buyers. It improves the area’s appearance and usability while also adding an extra layer of protection to the home’s foundation.
Conclusion
The best way to protect your home from moisture damage is to install a waterproof basement membrane. You can choose from a cementitious, polyurethane, or liquid membrane. Contact a waterproofing professional for advice on selecting and applying the best wall membrane for your basement.
