Click on a photo to enlarge.
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 business owner in Toms River, NJ called our office and wanted our Contracting team to add a vapor barrier and a dehumidifier to his crawl space.
First, we removed all the debris and then leveled the ground. Afterward, we installed the vapor barrier, which is a heavy-duty, 20-mil 7-ply sandwich of high and low-density polyethylene with a polyester-cord reinforcement. It's extremely durable, treated with an antimicrobial to prevent mold, and is installed over the foundation walls and floor to create a continuous air and moisture barrier.
Lastly, we installed a Sani-Dry Sedona commercial-grade dehumidifier which directs the extracted water that is pulled out of the air directly into the sump pump. These dehumidifiers are maintenance-free, turn on and off automatically with a built-in hygrometer, and there is no water tray to empty or overflow.
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.
One of my biweekly commercial accounts, a restaurant in Keyport, was having ongoing issues with mice, despite our best efforts in locating and sealing possible entry points. According to the day manager, mice were running back and forth between a two-door area (see photo). So, I began my inspection by carefully looking for entry points in this area. Each door frame had a slight opening behind the baseboards. Mice had created their own point of access by chewing themselves a pathway to get around the bar area of the restaurant (see photo).
I patched each hole with copper mesh. Now, with the mesh blocking them, the mice had lost their route to get back into these areas. I then placed several “tin cat” glue boards around the utility closet adjacent to the entry point. The utility closet was the perfect harborage area for mice — it was small, dark, and easily accessible.
During my next follow-up, I made significant progress with the infestation. My “tin cats” had snared several mice now that these entry points were plugged. I’m confident that as long as I stay on top of closing possible entry points into the restaurant, their rodent problem will be eliminated.
The most important line of defense for mice is keeping them out of the structure in the first place, and the only way to do that is by being vigilant about inspecting the building’s exterior perimeter, finding entry points and sealing them. Also, inspecting for mice is an ongoing process. Just like what happened here, new entry points can pop up between visits. Mice are persistent, focused creatures. If they are determined to find their way inside a structure, they will keep plugging away, either by finding a new entry point or by making their own. Mice are able to gnaw and chew their way through wood and other building materials.
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.