Crawl Space Encapsulation Before & After Photos

A Toms River, NJ homeowner, who lives near the Barnegat Bay, was plagued with a chronically wet crawl space. Due to the high water table, his crawl space had at least an inch of standing water throughout the year due to groundwater seepage. Fortunately, Crawl Space Solutions by Cowleys was call in to save the day. 

This Toms River homeowner contracted with Cowleys for a full Clean Space install. An important part of the encapsulation process is installing a special Everlast™  vent cover. These covers, which can be installed against wood framing or masonry, close off outside air and moisture from entering the crawl space through the exterior vents.  These covers not only work well, but, as shown in the pictures, are aesthetically pleasing. Made with a hard durable plastic, they stand up to the worst weather conditions, and, unlike wood vents, these covers are completely maintenance free. They never rot, warp, or crack and they never need to be painted. Even though these vent covers completely seal the vents from the outdoor elements, they are easy to open if you need to access your crawl space to have repairs done or for storage (another benefit of encapsulation — a clean, dry area for storage!). To open these vent covers, all you need to do is twist a few knobs, and you’re in! The attached pictures show the outside of the crawl space of this Toms River home before and after one of these vent covers was installed. 

A new customer in Toms River, NJ had a crawl space that was in bad shape. Not only was the humidity level in the crawl space extremely high, but a pipe had burst, which flooded the entire area. The pipe was repaired, but the insulation was saturated and, if not handled immediately, mold will develop. So we’re here to prevent that from happening.

First, we removed all the contaminated insulation from the crawl space. Afterward, we wiped down all the joists and installed ComfortTherm® insulation. ComfortTherm® insulation provides excellent temperature and noise control, and comes with a vapor-retarder for use in hot, humid climates. To control the high humidity levels, we installed a Sani-Dry Sedona commercial-grade dehumidifier. The Sedona directs the extracted water pulled out of the air directly into the sump pump and will control the humidity levels in the crawl space.

Lastly, we replaced the broken crawl space door with a new EverLast™ Crawl Space Door. The EverLast™ Door is made entirely out of completely inorganic plastic and foam doors are & create an airtight, waterproof seal between your crawl space and the cold or humid air outside.

Recently, we went on a service a call in Bayville, NJ for a homeowner who was complaining of an excessive amount of moisture in his crawl space. Excessive moisture in your crawl space can have a major impact on your family’s health. In fact, 40% of the air in your home comes up through the crawl space — which means that moisture and mold can seep into your home, where you're breathing it in. 

Once we arrived at the property, we equipped our personal protective equipment (PPE) and began our inspection. After surveying the crawl space, we noticed that the homeowner had a dirt floor crawl space and that his home was located right on the bay. Dirt floor crawl spaces attract and absorb moisture. When the dirt dries, it causes humidity levels to rise in your home. After a thorough inspection, we determined that this was the cause of the moisture build-up in the crawl space.  

The best treatment method to remove the moisture is to encapsulate the crawl space. First, we installed a vapor barrier. A vapor barrier is a super-durable, 20-mil 7-ply plastic sheet material made up of high and low-density polyethylene with polyester-cord reinforcement. The vapor barrier resists the passage of air and by stopping air movement from the ground, it can also turn your crawl space into a semi-conditioned space. Next, we removed the existing fiberglass insulation and replaced it with encapsulated comfort thermal insulation. Then, we installed a smart pump with a battery back up and auxiliary pump to remove any groundwater underneath the liner.

Finally, in order to prevent mold growth, we installed a SaniDry XP commercial dehumidifier. These machines are specifically designed and manufactured for the challenging environments of basements and crawl spaces. The SaniDry XP is a powerful energy-efficient dehumidifier that outperforms standard household dehumidifiers by as much as 10 times while using the same amount of energy to run. The SaniDry XP can effectively cover indoor living spaces over 3000 square feet, making it well-suited for basements and crawl spaces over 40” high. 

Now, the moisture in the crawl space is greatly reduced, helping prevent mold growth.

Homeowners in Old Bridge, NJ, recently converted their front porch to a year-round living space. There is a small crawl space underneath the newly converted area. As they started to use the area, they soon noticed a musty, earthy odor wafting up from the crawl space. Also, the floor was quite cold. They contacted Cowleys for some crawl space renovation that would buffer the cold air and remove the odors, and one of our crawl space encapsulation teams was sent over. 

To stop the cold air, we installed Silverglo insulation on the exterior walls. SliverGlo is a lightweight, rigid, and closed-cell insulation that is much more efficient than over-the-counter batt and foam insulations that just isn’t designed for crawl spaces. Its closed-cell structure provides minimal water absorption and low vapor permanence. Other types of insulation act like a sponge in damp crawl spaces and, once wet, loses its ability to effectively insulate. We then installed a CleanSpace liner (vapor barrier) to encapsulate the area.This heavy-duty 20-mil liner is much thicker and sturdier than the generic “contractor bag” liners. 

With the crawl space sealed from the outdoor elements, the homeowners will no longer have a “freezer box” underneath their flooring and the odors will be gone as well. Considering that there were odor problems during the winter month, once summer rolled around, the problem would have gotten even worse. With the encapsulation, there will be far less likelihood of mold formation and the crawl space will stay nice and dry — the homeowners can now even use this “dead” crawl space area for storage if needed.

April showers bring May flowers, including heavy rains into crawl spaces! Recently, we received a call from a homeowner in Farmingdale, NJ who had an issue with their crawl space. During heavy rainfall, their crawl space kept getting flooded and the sump pump wasn’t working properly. Not having a clean crawl space can have a major impact on your family’s health in so many ways. In fact, 40% of the air in your home comes up through the crawl space. This means that moisture, mold, dust, and pathogens can seep into your home, where you're breathing it in. Asthma or allergy symptoms could be a response to this. Once we arrived at the property, we put on our Personal Protective Equipment (PPE), full-face respirator masks and began our inspection. After thoroughly inspecting the crawl space, we discussed with the homeowners what they needed. A crawl space encapsulation. 

Crawl space encapsulation eliminates moisture, prevents damage from moisture, keeps unwanted critters out, and saves you money on your utility bill. First, we removed all the debris out of the crawl space. Then we laid down drainage matting which will allow any water to work its way over to the sump pump. Once that was done we dug a hole to remove the old sump pump and installed the new sump pump. Then we filled the outside of the hole with stones to allow water to make its way into the sump pump. Finally, we lined the entire crawl space with a vapor barrier liner. The vapor barrier is a 20-mil 7-ply sandwich of high and low-density polyethylene with a polyester-cord reinforcement. It's also treated with an antimicrobial finish that protects against mold and mildew growth. This vapor barrier is made-to-take-a-beating and is puncture and tear-resistant. Now the homeowner will no longer worry about their crawl space getting flooded.