When you have a new house built with a basement or a crawlspace that is enclosed with blocks, you need to waterproof the cement or block once the cement cures. A good waterproofing definition is making a permeable substance impervious with a barrier. You’ll find waterproofing materials on basements, crawlspaces, in bathrooms and kitchens, on decks, roofs and in swimming pools and water tanks. Building a house without waterproofing it allows water to seep in through the concrete, which then causes flooding and mold problems.
Types of Waterproofing
Several types of waterproofing are used to waterproof concrete, including a liquid waterproofing membrane, cementitious waterproofing, a bituminous membrane, bituminous coating or a polyurethane liquid membrane. Some types are used on roofs, some in basements and crawlspaces and others may only be used inside because the weather will eventually wear on the waterproofing capabilities.
In some cases, this might not be enough to protect a structure. You may have to give the waterproofing some help by adding a foundation drainage system or adding a damp-proof course. A foundation drainage system uses perforated pipes that are run near the perimeter of the basement. The pipes direct the water away from the building to a spot that is sunny or to a collection pit or container, where it is pumped out.
A damp-proof course (DPC) is a barrier that is laid horizontally on the wall of the basement. It stops moisture sucked into the foundation from rising into the building.
Basements may be waterproofed by placing the application on the same side as the water (positive waterproofing) or by putting the waterproofing material on the inside of the structure or wall that is being waterproofed. Waterproofers may also use an injection grouting method for basements that have already been constructed.
Does My Home Need Waterproofing?
If you notice puddles of water in your basement or crawlspace, or you notice the cement walls seem to be constantly damp, your home may need waterproofing. If the waterproofing membrane that was first applied to your basement was of poor quality, it could erode after a time, which causes leaks into your basement. Crawlspace waterproofing is the same, but it may be harder for a homeowner to determine whether the crawlspace is affected if the floor is dirt. Crawlspace waterproofing is just as important as basement waterproofing, but it is easier to repair than basement waterproofing.
If your foundation is not sealed or the waterproof membrane wears off, the moisture that seeps in will cause mold in your home. When you build a new house, always make sure the contractor uses a good-quality waterproofing membrane on the basement or crawlspace.
If you need to seal a basement because the waterproof membrane wore off or was not applied properly, you should always hire professionals or you could be doing this huge project again in a couple of years.
You can also make the waterproofing last longer by directing water away from the house. Downspouts from gutters should direct the water from gutters at least 2 feet (0.61 meters) from the edge of the house.
Contact H&H Pest Control and Waterproofing
If you notice excessive dampness in your basement or crawlspace, water pooling in your basement, or you see mold in your home, you may need to have the basement or crawlspace waterproofed. Contact professional waterproofers at H&H Pest Control and Waterproofing to schedule an appointment for an estimate.