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A homeowner in Seaside Park, NJ, contacted Cowleys after hearing strange “thumping and scratching” wildlife noises coming from the attic. Something was up there, but she wasn’t interested in investigating to find out what type of wildlife had taken up residence in her attic. Common “attic invaders” that we deal with are squirrels, raccoons, bats, and birds. Here, it turned out that the culprits infesting the attic were squirrels.
Upon arrival, for the start of my inspection, I want to determine how the animals are gaining access into the attic in the first place. Unless it is a flying animal, the animal must first find a way to gain access to the roof (usually, it’s an overhanging tree branch or utility wires coming into the roofline area) and then, once on the roof, they look for some weakness in the roof structure to exploit. Often, with large wildlife, it’s not a mystery. There is an obvious entry hole in the roof or around the roofline. Here, however, at first glance, I did not see any visible damage indicating where the wildlife was finding its way inside. Upon closer inspection, I found the answer. All four of the plastic static roof vents had large holes chewed through them. Squirrels are in the rodent family and they have razor-sharp teeth that can eat through many types of building materials.
As you can see from the photo, the hole was underneath the plastic cap so it was not causing any water leakage. Nevertheless, the hole was more than enough for squirrels to gain easy access to this homeowner’s attic. Unfortunately, manufacturers do not usually design vents to be pest-proof. Contractors are looking to save money on their projects and price considerations affect the quality of “manufacturer’s standard” building materials.
To resolve this problem, I covered three of the four roof vents with a tough galvanized steel mesh cover that fits over the entire vent. This cover is strong and durable enough to stop any wildlife from even thinking about using the vent to gain access to the attic. Why didn’t I cover all four vents? I wanted to allow any squirrels hiding in the attic a route to leave. With three of the four access points closed, the squirrels had no choice but to exit through the remaining opening. On this fourth vent, I installed a makeshift temporary cover attached to a one-way door. The door allows animals to leave, but it’s a one-way trip. They are unable to regain access into the attic. Once any animals are trapped and relocated and we are certain that there is no more wildlife activity inside the house, the fourth and final vent cover will be installed. And this wildlife job is complete — all wildlife is safely and humanely removed from the home and all entry points are sealed to prevent a re-infestation.
Recently Middletown Township, NJ homeowners contacted Cowleys after noticing some debris coming out from the drop ceiling in their finished basement. Upon arrival, I immediately went into the basement to inspect. I popped out the tile and immediately noticed that something had been chewing on the tile itself. I had a strong suspicion that this homeowner had a mouse infestation. After entering the home through gaps and cracks around the foundation, they will make their way through wall voids or travel on top of drop ceilings to forage for food and water. We see a substantial uptick of mouse infestations when temperatures drop and mice attempt to gain access inside our homes to overwinter to escape the harsh outdoor elements and forage for food and water.
Mice, as all rodents, have incisor teeth that constantly grow. To keep them at a reasonable length, they will gnaw on almost anything they can get their teeth around as well as grind their teeth as a way of slowing their growth. While inspecting the sill plate, I found the tell-tale sign of mice — the rice-like droppings they leave behind. Adjacent to this area, I noticed several wires going to the outside with a noticeable gap around them, allowing mice to enter. Gaps around pipes and wires entering the home are one of the more common entry points for rodents.
I vacuumed up the toxic droppings and then placed a rodent bait station on the sill plate. Mice will follow the same trail, so placing bait stations in their pathway is highly effective to reduce their populations. I temporarily sealed the gap around the wires using chew-proof copper mesh. The homeowners informed me that they would have their contractor permanently seal the gap with stucco to prevent a re-infestation. With mouse infestations, to permanently resolve the issue and prevent re-infestations, it is essential to locate and seal all of the potential entry points around the home.
This crawl space got a complete face lift with crawl space encapsulation, keeping the environment dry, pest and mold-free.
Recently, I went out on a service call for one of our commercial clients, an apartment complex in Belmar, NJ. The property manager had contacted us after a tenant in one of the lower-level apartments reported a mouse infestation. Mice are more than a nuisance. They pose a significant health hazard. Mice can contaminate food and counter surfaces with their urine and droppings, particles of which can become airborne. Mice can transmit numerous diseases including Hantavirus Pulmonary Syndrome (HPS), a severe, sometimes fatal, respiratory disease and Lymphocytic Choriomeningitis (LCM) that affects the membranes of the brain and spinal cord. If that weren’t enough, they often carry in Lyme-carrying ticks or disease-ridden fleas with them as well.
Once I arrived, I began my inspection along the exterior perimeter of the apartment where mice were reported to locate potential entry points. I discovered many access points where the mice could easily enter the structure. There were spaces around piping entering the building, gaps around the windows and doors and a large space between the soil and the landing to the staircase leading upstairs.
As I continued my inspection inside the garage and apartment, I came across a large number of mouse droppings. This unit had a heavy rodent infestation that required extensive treatment.
With rodents, it is essential to keep them out in the first place by excluding any areas where the rodents are gaining access. I stuffed chew-proof copper mesh material into small spaces around pipes and sealed the gaps around the larger holes with metal flashing. Mice hate the taste and feel of copper mesh, and once they come in contact with this material, they quickly decide to go elsewhere.
After all the points of entry were sealed, I placed several rodent bait stations throughout the property. Typically, the number of rodent bait stations we use depends on the severity of the infestation. In this case, I set up twelve small rodent bait stations in the inside of the apartment and one larger station along the exterior perimeter. After placing all rodent bait stations, I carefully removed all of the hazardous mouse droppings.
Due to the severity of this infestation, it will take longer than usual to rid this apartment of mice. I scheduled periodic follow-ups to monitor the level of infestation and replenish the bait in the stations until this mouse problem is completely resolved.
Soil is a porous medium that acts like a sponge. After rainfall, soil soaks up water, and once the soil is saturated, it will form surface puddles along with moisture and humidity. This was the case for this homeowner in Belmar, NJ who realized there was a problem and wanted our crawl space specialists to handle it.
First, we removed all of the debris, flattened the surface and laid down a drainage matting. The drainage matting allows moisture to work its way over to the new sump pump that we installed. Next, we lined the entire crawl space with a super-durable, 20-mil 7-ply vapor barrier, which is made up of high and low-density polyethylene with a polyester-cord reinforcement. This barrier will deter moisture from entering the crawl space, is puncture and tear-resistant, and is treated with an antimicrobial solution to prevent mold.
Afterward, we lined the walls of the crawl space with foam insulation called SilverGlo™. SilverGlo™ not only has a higher R-value than standard EPS foam but also comes with a shiny integral radiant barrier that reflects heat for enhanced energy efficiency. The homeowner previously purchased a commercial-grade dehumidifier and planned on installing it after we were finished. Now, the homeowner has a dry, energy-efficient, and healthy crawl space.