Tue. Apr 23rd, 2019

Internal vs. External Waterproofing: What Is the Difference?

Waterproofing your basement is a must if you are having water leaks and cracks on the floors or walls. Sometimes it is enough to go on a DIY project and fix the problem yourself by sealing the cracks and putting waterproofing layers with a paintbrush. But other times, especially if you are having floor cracks or big floods, you should consider internal or external basement waterproofing.

Internal Waterproofing

This system isn’t necessarily waterproofing your basement; more like managing or controlling the water flow from your home foundation, by a sump pump to the outside. With internal waterproofing, you make sure that running water will not leak or crack your foundation floors and walls. You do this by excavating parts of your basement and installing pipes which later direct the water from your walls into the sump pump. It sounds easy but internal waterproofing is a layer job. So to install and maintain functionality of the pipes and their traffic system; takes a lot of material, planning and hand work.

Pros & Cons of Internal Waterproofing

To do internal waterproofing you have to take out insulation, dry wall and flooring. Because of this internal waterproofing is highly recommended for unfinished basements. It is much harder to do it when the area is fully furnished. It doesn’t involve any changes on your exterior, like landscape or wall removal, so it is much cheaper than exterior waterproofing.

Also, it can be installed all year round because it is not weather dependent nor is it influenced by outside conditions like tree roots and bad soil. Interior waterproofing is a water pressure reliever which will protect you from further wall cracks and leaks, but it doesn’t stop water leaking near your walls, since it is just directing it in a different area. This may cause mold.

External Waterproofing

Consult with experts when deciding which waterproofing to go for. Every home has its own characteristics and different things suitable for them. Try to find the best and cheapest solution out there. You may have to install both interior and exterior waterproofing. Or maybe consider a cheaper option like buying a new home because exterior waterproofing isn’t famous for the affordable price.

It involves digging up a large hole around the perimeter of your home and installing certain systems that prevent the water to come near your foundations by directing it somewhere else. Take In mind the place where the water will be directed, consult with your city to check how much water you can expose of in the main sewage. Make those fact a part of your choice between internal & external.

Pros & Cons of External Waterproofing

When going for external waterproofing be prepared to have your house surrounded by contractors at least 4/5 days. It is a process of installing absolute water leak or foundation break protection; so of course, it is going to be difficult. Going with this option, you won’t have to prepare for anything; and you won’t have to worry about any interior being moved from its proper place.

A con is that it cannot be installed in homes with attached garages or any other buildings in a close proximity. A pro is that it helps drain the soil and doesn’t at all allow water to reach your foundation walls. You can always try to measure one with the other; but both of them have one goal: to keep your home nice and dry.

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