How to Stop Flies Getting Into Your Home Through Roof Air Vents
How to Stop Flies Getting Into Your Home Through Roof Air Vents
If you’ve ever had flies buzzing around your home, you know how frustrating they can be. But when they start sneaking in through your roof air vents, it’s a whole new level of annoyance. One minute your kitchen’s peaceful — the next, you’ve got a swarm dive-bombing your dinner.
Here’s why it happens — and how to stop them for good.
🪰 Why Are Flies Getting In Through Roof Air Vents?
Flies love dark, warm, sheltered spaces. If your roof vent is open or lacks fine mesh, it’s basically a welcome sign.
Older mushroom-style vents are the main offenders — they often have no pest or ember mesh, letting in flies, mosquitoes, and even cockroaches. Once inside, they can crawl through ducting and enter your home via your rangehood or bathroom exhaust fan.
🔧 How to Stop Flies from Entering Through Roof Vents
1️⃣ Upgrade to a DV150SS Stainless Steel Hi-Flow Flume Vent
The easiest and most effective fix is upgrading to a DV150SS Hi-Flow Flume Vent from Dragon Vents Australia.
- ✅ Built-in pest and ember mesh
- ✅ 304 stainless steel — corrosion resistant for coastal and bushfire zones
- ✅ Certified BAL 12.5 – BAL 40 compliant
- ✅ Boosts airflow while keeping pests out
Installation is simple: remove your old vent from the flume pipe (usually riveted on), trim about 100 mm from the pipe with tin snips, then slide the new DV150SS Hi-Flow Vent over and secure it with three screws. No need to replace the entire roof system — just upgrade the cap.
2️⃣ Clean Your Rangehood Filters Regularly
Flies are drawn to cooking odours and grease. Dirty filters can attract them straight to your vent — and once inside, they often die near the fan housing or ducting, creating hidden hygiene problems.
⚠️ The Hidden Health Risks of Decomposing Flies
When flies die and decompose inside your rangehood or ducting, their bodies can:
- • Harbour bacteria like Salmonella, E. coli, or Staphylococcus
- • Produce foul odours and airborne microbial particles
- • Attract more pests such as ants, cockroaches, or maggots
🏠 Health Risks to Your Family
While a few dead flies might not do much harm, a buildup can cause:
- • Respiratory irritation from airborne bacteria or spores
- • Allergic or sinus reactions in sensitive people
- • Contamination if residues drip back into your cooking area
People with asthma, allergies, or weakened immune systems are especially at risk.
💡 The Smart Long-Term Fix
Installing a DV150SS Hi-Flow Vent gives you:
- • Complete pest and ember protection
- • Improved rangehood airflow and efficiency
- • Stainless steel durability that lasts for decades
It’s a small upgrade that brings lasting protection, cleaner air, and peace of mind.
🛒 Buy the DV150SS Hi-Flow Vent
Australian-made | BAL-40 rated | Pest-proof | Stainless Steel