As useful as crawl spaces are, they can turn into a major problem if not maintained properly. 

Moisture collection in your crawl space can be very problematic for your foundation and, eventually, the structure of your home. Waterproofing this area of your home is essential to keeping your foundation and home healthy.

Dampness in crawl spaces can cause mold and fungus and wreck your home’s HVAC system. The cracks allow pests and rats to pass through, leading to cracks and leaks in the foundation. 

Hence, waterproofing the crawl space is essential to maintain a healthy home. 

Signs of Water Damage in Crawl Space

A crawl space is a small space beneath the main floor of a building. It offers a little standing room for maintenance and installation of utilities, including HVAC, in our homes. It can also be used as extra storage space.

This space acts as a barrier between the ground and the main floor of the building, so it is prone to moisture. Wet foundation walls and discoloration are the signs of water damage in the crawl space. You can also notice dark and light in your concrete walls.

Efflorescence is also a major sign of moisture problems in the area. Other indicators of water damage include mold, wood rot fungus, dew point issues, high humidity, and leaks.

Maintenance and Prevention

Maintenance and prevention of crawl space can save you a lot of money in the future while also keeping your home healthy. Regular inspection and maintenance are necessary to prevent water damage in the crawl space.

Also, ensure that your crawl space has proper ventilation to avoid humidity. You should also fix cracks and leaks as soon as possible.  Waterproofing is an essential step in preventing water damage in the crawl space for a healthy home. 

Waterproofing Solutions

Here are some of the techniques for waterproofing:

  • Vapor Barrier:

Vapour Barrier can be directly installed to prevent moisture accumulation in the crawl space. It mostly prevents the moisture from groundwater from reaching the surface and prevents humidity.

2. Ventilators:

Installing ventilators is an easy waterproofing technique. They help regulate air in the space and lower humidity levels. Automatic ventilators that open and close according to the temperature are also more effective. 

3.  Encapsulation:

Encapsulation is a method of completely sealing off a crawl space to prevent moisture from building up and preventing groundwater from accumulating on the surface. 

Various high-density impervious liners, such as heavy-duty polyethylene barriers or swimming pool liners, are used to encapsulate ground, ceilings, supports, and walls. This is a very effective method for waterproofing the crawl space. 

4. Rat Slab: 

The rat slab is a three- to four-inch-thick concrete slab over the crawl space. The slab acts as a barrier between groundwater and the main floor, preventing water seepage and permanently blocking the passage of water.

 It is also a solution to pest infestations. Using dehumidifiers in the rat slab can be more effective, as they help regulate the environment inside the crawl space, keeping it drier.

5. Drainage System:

A perimeter drain installation also prevents water accumulation in the crawl space. It is installed around the interior walls, and the drain pipe connects to a sump pump, which removes water from the crawl space.

It intercepts rain as well as leaking water in the crawl space to prevent moisture collection which helps to keep your home dry and healthy.

Interior Crawl Space Waterproofing and Exterior Crawl Space Waterproofing

Interior waterproofing includes sealing holes and cracks in the walls and floor. These cracks and holes can cause moisture build-up in the space, so sealing them is important.

While interior crawl space waterproofing includes protecting interior walls, exterior crawl space waterproofing includes protecting exterior walls to avoid water seepage, this includes applying polymer-based waterproof sealant, repairing poorly functioning drainage, and excavating soil around the foundation.

Guide for Waterproofing of Crawl Space

The waterproofing should start with an inspection and assessing the space. You need to look for cracks, leakages and molds and fix cracks before you start waterproofing.

Since the crawl space is a barrier space, it is not often clean. Cleaning is recommended before starting the waterproofing process, and debris and dirt should also be removed before installing the vapor barrier.

Then, any structural damage in the area should be fixed. Check the damage to all the structural elements, such as beams, columns, and foundations. If there are any damages, they need to be fixed. Also, wood rots in the structure should be replaced. Additional attention should also be provided to the subfloor supports to prevent collapsing.

The next step is to seal all the vents and cracks on the floor to avoid moisture build-up. Doors should also be sealed, and the walls should be insulated. If you are installing the new moisture barrier, make sure you get rid of the old one first. Then, level the ground and surfaces before you install a new moisture barrier.

Professionals for Waterproofing

It is advisable to get professional help for waterproofing your crawl space. The experts can choose the most suitable option for you and provide you with the best results. They understand the steps better than you can and provide you with the best solution.

Besides that, professionals have specialized equipment necessary for detecting problems and repairing them. They also know high-quality materials that can be used in your homes. Further, hiring professionals also saves a lot of time and effort for homeowners.

Many professional waterproofing companies also offer warranties and guarantees on their workmanship and materials. This protects investment and ensures quality work, so hiring professionals is the best step to get the job done.

Conclusion

In conclusion, crawl space waterproofing is very important to keep your home healthy. By understanding the causes of moisture in the crawl space, steps should be taken to maintain the space. There are various signs to recognize the water damage in crawl space and also various methods for prevention. Homeowners can maintain a healthy home by waterproofing the crawl space and keeping it dry. 

Author

Rethinking The Future (RTF) is a Global Platform for Architecture and Design. RTF through more than 100 countries around the world provides an interactive platform of highest standard acknowledging the projects among creative and influential industry professionals.