3 Ways That Water Can Enter Your Home's Crawlspace And How You Can Prevent Them

Construction & Contractors Blog

Water that collects in your home's crawl space increases its humidity, which can cause mold and fungus to grow. Since air from your crawl space enters your living space, mold spores released from mold growing in your crawl space can eventually make its way into your home, causing a serious mold problem. Additionally, large amounts of standing water caused by crawl space flooding can damage your foundation, and you may have to hire a water remediation contractor to fully dry out your crawl space afterward — this can be quite expensive.

Because of the potential health and financial hazards of crawl space flooding, it's important to make sure it's kept free of water and its humidity is controlled. Read on for three ways that water can invade your home's crawl space and how you can keep it out.

1. Rainwater Intrusion

Heavy rains often cause serious flooding in crawl spaces. When the soil around your foundation becomes completely saturated with water after a heavy rain, it begins to push on the sides of your foundation.

This pressure eventually leads to water leaking into your crawl space, carrying small amounts of soil with it. When heavy rains last for a considerable length of time, it can result in a few inches of standing water in your crawl space. This can easily cause the wooden beams in your crawl space to begin to rot.

A professional crawl space waterproofing company can prevent damage caused by rainwater with a two-pronged approach. Flood vents will be installed around your foundation in order to divert as much rainwater as possible away from your crawl space, limiting the amount of water pressure on your crawl space's walls.

The second way is to install pipes along the edges of your crawl space that are connected to a sump pump. Any water that leaks through the walls will collect in the pipes and be pumped away from your crawl space by the sump pump. These two approaches combined make crawl space flooding much less likely.

2. Plumbing Leaks

Leaking pipes in your home's plumbing can go unnoticed for quite some time, and the water that leaks from the pipe will eventually make its way down to your crawl space. If your crawl space has soil floor, the leak can saturate the soil and lead to drastically increased humidity in your crawl space, making mold more likely to form.

The major danger posed by this source of water in your crawl space is that it's hard to detect. A small leak may not be reflected in your home's water bill, but it will slowly increase the humidity in your crawl space.

Crawl space waterproofing contractors prevent plumbing leaks from affecting your crawl space by installing drainage mats on the floor. These mats soak up water and transport it to the pipes lining the edges of your crawl space, where it is taken away by the sump pump. This keeps your crawl space fully dry, preventing an unnoticed plumbing leak from eventually causing mold growth in your crawl space.

3. Excess Outside Humidity

Vented crawl spaces are susceptible to high humidity. Vents are often installed in crawl spaces to allow them to dry out. They exchange air with the outside in order to keep the humidity controlled and allow water in your crawl space to evaporate.

When the air outside is extremely humid, however, the air exchange can increase the humidity inside your crawl space. This can cause wood to rot and mold to grow.

Controlling your crawl space's humidity is best accomplished by encapsulating it. A crawl space waterproofing contractor places an insulated lining on the walls of your crawl space in order to block out as much outside air as possible.

Humidity levels inside the crawl space are monitored to make sure they won't contribute to mold growth. If humidity levels still remain high, then a dehumidifier will be placed in the crawl space to reduce them.

The most important aspect of crawl space waterproofing is preventing rainwater from entering, as this can cause the most serious flooding. However, excess humidity and leaks from your home's plumbing need to be prevented as well.

They also present a water damage danger because homeowners don't often enter their crawl spaces. Mold and fungus can grow unchecked for a considerable length of time before they're noticed.

To keep your crawl space dry and prevent flooding from damaging your home, call a professional crawl space waterproofing company to have your crawl space fully sealed from the elements.

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5 June 2019

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