1 Confirm what you have before buying anything
A camera in the attic saves you from guessing. I put one up on a Thursday night and by Friday morning I had footage of two roof rats running the ridge beam — that told me exactly where to place traps. The Wyze Cam v3 works in the dark, runs on a power cord you can drop through an attic hatch, and costs less than a single exterminator visit. You will also use it later to confirm the attic is clear before you seal entry points.
2 Catch what is already inside with live traps
Once you know you have activity, place live traps along the ridge beam or any wall where you saw movement. The Havahart 1025 is the right size for roof rats and large mice — it triggers reliably and the double-door design means fewer misses. Bait with a grape or a small smear of peanut butter pressed into a cracker so they have to enter fully to reach it. Check every 24 hours without fail; an animal trapped in Florida heat past one day is no longer a humane situation.
3 Drive out stragglers with a scent deterrent
Rats that have not entered your traps within a week are trap-shy. A peppermint-based repellent placed along active runways makes those paths uncomfortable and nudges them toward the exits — which you have not sealed yet, on purpose. Fresh Cab is an EPA-registered botanical rodent repellent made with balsam fir oil, and it actually works in enclosed spaces unlike the ultrasonic gadgets. Put two pouches near active areas and replace them every 30 days until activity stops.
4 Seal every gap before you think the job is done
Roof rats can compress their body through a hole the diameter of a quarter. In North Port, the most common entry points are where the soffit meets the fascia board (they warp here from sun and humidity), around pipe penetrations in the roof deck, and at gable vents where the mesh has rusted out — and it always rusts out eventually in our salt air. Hardware cloth — 19-gauge, half-inch mesh — is the correct material. Cut it with aviation snips, staple it over vents, and pack gaps with copper mesh before caulking over it with polyurethane, not silicone.
5 Replace contaminated insulation if the problem ran long
Blown fiberglass insulation saturated with rat urine is not something you remediate — you remove it. In our climate, that wet insulation also becomes a mold substrate within weeks. If the camera showed heavy activity over a large area, plan for a full attic clean-out. Rent a commercial insulation vacuum from Home Depot on Tamiami Trail for about $60 a day, bag the old material in contractor bags, and re-blow with new R-30 at minimum per Florida Energy Code. This is the part that costs real money, but it is far cheaper than an HVAC replacement from a mold claim.
6 Monitor long-term so you catch the next entry fast
After the clean-out and seal, I leave the Wyze cam running in the attic permanently on a 5-day loop. If something new gets in — and in North Port, something new always eventually tries — I know within 24 hours instead of after they have been nesting for a month. Set a motion alert zone aimed at the ridge beam and you will get a phone notification before there is a problem, not after.
The rats were never the long-term problem — it was the gap in the soffit they walked through every night like they paid rent.
rodents-rats-and-mice-in-the-attic-humane.isnotbadforyou.com · A North Port neighbor's honest take
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