Before & After Photos

This homeowner in Rumson, NJ was tired of having an excessive amount of moisture in his crawl space, so he called our office to encapsulate it. Excessive moisture in your crawl space can have a major impact on your family’s health. In fact, 50% 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. After surveying the crawl space, we noticed that the homeowner had a dirt floor crawl space. Dirt floor crawl spaces attract and absorb moisture. When the dirt dries, the moisture from the dirt ground evaporates up into the crawl space, which 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.  

First, we leveled the ground for proper draining and installed drainage matting. This material is a dimpled plastic mat that allows all excess moisture to work its way over to the sump pump. Once we finished, we installed a vapor barrier which is a heavy-duty, 20-mil 7-ply sandwich of high and low-density polyethylene with a polyester-cord reinforcement. It cannot tear and is extremely durable. The vapor barrier is also treated with an antimicrobial to prevent mold and is installed over the foundation walls and floor to create a continuous air and moisture barrier.

Next, we installed SilverGlo™ on the walls of the crawl space. SilverGlo™ is a waterproof foam insulation that seals the walls from outside moisture and humidity. Lastly, we installed a Sani-Dry Sedona commercial-grade dehumidifier to control the humidity levels. The Sedona directs the extracted water pulled out of the air directly into the sump pump.

Here is a great “before and after” photo comparison where I installed a vent block to replace, what frankly, was a big mess. This project was completed for a home in Avon by the Sea, NJ. Whenever we install a dehumidifier in a crawl space, we strongly recommend to homeowners to block the crawl space vents, which helps keep outside humid air from entering the basement (not to mention insects!). Installation of a commercial-grade dehumidifier is the single most important way for homeowners to prevent mold growth and other problems resulting from sustained high humidity in crawl spaces and basements. ideally, these subterranean areas should be encapsulated to keep humid air from entering the crawl space. Building scientists that study indoor airflow have found that vented crawl spaces do exactly what homeowners want to prevent —  allowing hot humid outdoor air enter the crawl space. There is a popular misconception that vented crawl spaces expel hot humid air, when in fact, the opposite is true. However, even if a homeowner decides to not fully encapsulate their crawl space, at a minimum, we strongly recommend that homeowners at least block the crawl space vents since these are, by far, the largest entry points for outside air.

To block the vents, we cut Silverglo insulation to size. SliverGlo insulation is an Expanded Polystyrene Foam (EPS) insulation that contains graphite. This lightweight, rigid, closed-cell insulation is 24% more efficient than over-the-counter batt and foam insulations. Its closed-cell structure provides minimal water absorption and low vapor permanence. As an added benefit, SilverGlo is coated with a mold-resistant aluminum that naturally enhancing primary sources of light, dramatically increasing the luminosity of even a single bulb. After setting in the insulation in the vent space, we then spray a hardening foam around the outside edges to completely block off any airflow. 

Homes that were built with dirt floor crawl space foundations became very popular after World War II when there was a huge demand for new and more affordable homes. Crawl spaces could be built faster and much cheaper than basements. However, no one could foresee the major issues that dirt floor crawl spaces can have on a home. For instance, this homeowner in Avon-by-the-Sea, NJ was experiencing incredibly high humidity levels and abundant moisture buildup in his crawl space. If left untreated any longer, this could lead to mold and mildew growth and structural damage. Fortunately, the homeowner decided to have Cowleys encapsulate his crawl space.

The benefits of crawl space encapsulation are dramatic. Relative humidity will stay below 70% even if the outdoor humidity is higher. You’ll save on your utility bills, have better air quality in the crawl space, and not only keep out moisture, but also keep out unwanted pests!

First, we cleared out all the debris and installed a drainage matting. A drainage matting is a dimpled plastic mat that allows water to work its way over to the sump pump. Next, we replaced the old, broken sump pump with a smart drain sump pump to allow any water that gets on top of the liner to flow down underneath the ground. 

Then, we installed a clean space liner covering the ground of the entire crawl space. A clean space liner is a super-durable, 20mil plastic sheet material designed to permanently prevent moisture, outside air, and pests from getting into your crawl space. The vapor barrier is installed over the foundation walls and floor to create a continuous air and moisture barrier. Finally, to control the humidity levels we installed a Sani-Dry dehumidifier. These machines are 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 directs the extracted water pulled out of the air directly into the sump pump. 

Now the humidity levels will be at a comfortable level, the value of the home has increased, and there will be no more moisture buildup in the crawl space.

This Bradley Beach homeowner had damage to his facia board that was caused by squirrels. The fascia board on a house is the vertical finishing edge that caps the end of the rafters, and is often where the home’s gutters are attached. Squirrels had chewed and clawed their way right through fascia. 

Another common trouble spot around the roof often damaged by wildlife is the soffit. The soffit is the finished wood or vinyl horizontal underside (water-resistant vinyl is preferable) beneath the overhanging section of the roof eave. Soffits, which have small holes to help ventilate the attic, are often a magnet for attracting small animals and insects.

A Cowleys wildlife technician had already resolved the squirrel issue, and I was called in to do the repair and exclusion work. Cowleys has a crew of technicians with extensive experience in home construction. Our projects include installing TAP insulation, waterproofing crawl spaces, treating mold, and repairing damage caused by wildlife.

The homeowner was insistent that he did not want the expense of removing his gutters, replacing the damaged fascia board, and re-installing the gutters. So, I took a more expedient approach that would leave the fascia in place. First, I needed brown aluminum to match the brown fascia board. This was easier said than done. It was a challenging job. In order to do this, I had to remove the supports for the gutter, and I had to do this a section at a time so the gutter would not fall. While the supports were off, I slid the the brown aluminum between the gutter and the fascia board to cover the damaged areas.

The next step to this process was to install a white sheet-metal drip edge. The drip edge is flashing installed along the edge of eaves. To install it, I slid the edging up under the shingles and carefully bent it so that it would wrap down on top of the brown aluminum layer. To fit the drip edge to size, I used tin snips, and allowed an overlap where the two pieces of drip edge meet so there would be no gap where water could potentially seep through. 

A drip edge is an important part of roofing that is often overlooked or not understood by homeowners. This drip edge is what gives a finished look to the roof and it also goes long way preventing rainwater from causing damage to the wood building materials near the roof. The drip edge helps keep out rainwater by preventing blow-under leaks caused by wind-driven rains and by directing rainwater into the gutter instead of running down the fascia where water, over time, can wreck havoc. 

A drip edge also helps prevent wildlife infestations. Moisture and water intrusions easily ruin wooden facia boards, and as this homeowner found out, fascia that weakened and softened by rain is also an open invitation for many types of wildlife like squirrels and raccoons to gain access inside the attic. These animals can rip and claw their way through weakened fascia like it was butter.Finally, a drip edge acts as a support for the shingles so they are not just hanging off the edge of the roof.

This homeowner in Highlands had wildlife gaining entry into his attic through a gable vent. The wire mesh screen covering the gable vents was damaged, most likely from the animals themselves. With the screen breached, they were able to gain access into the attic.

Homes are equipped with attic vents to provide efficient ventilation. They allow heat and humidity to escape from the attic in the summer and moist air in the winter. You’ll find vents on the underside of your soffits and on the home’s gables, which are the triangular portion of the outside wall of a house that comes to a peak between the edges of the intersecting roof pitches. Homes with a simple gable roof (two roof sections sloping in opposite directions that meet at the roof ridge), typically have gable vents at the two ends of the house, and sometimes over the garage. Homes with more ornate roof structures with multiple gables usually have multiple gable vents. While these vents are necessary for efficient attic ventilation, they often wind up being the “weakest link” in the roof structure for wildlife to gain access. Time and time again, our wildlife technicians have had to deal with infestations with wildlife that used a gable vent as their personal welcome mat to enter the attic. Once inside, wildlife can cause significant property damage. They can ruin expensive insulation and chew through wires, creating a fire hazard, and their droppings are a serious health hazard.

Two members of Cowleys home construction crew were sent in to do the exclusion work and make sure that, going forward, wildlife would be blocked from trying to re-enter the attic through this vent. We carefully removed the damaged screen and installed a new one.