I have around 20 vents on my roof and I currently do not have a roof rat problem but I want to cover them with something to prevent roof rats getting into the attic. I'm sure I can find something at home depot that will do this and still allow the air passage through the netting/mesh that I put over the vents.

My question is about the vent that is used for the dryer. Lint coming out of that vent can attach itself to the covering and create a fire hazard. Is there a safe way to prevent rats from getting into the dryer through this vent?

  • 1
    Sounds like a job for a roof cat! Oct 24, 2013 at 17:51
  • What kind of vents? Attic vents? Do you have a picture?
    – longneck
    Oct 24, 2013 at 18:17
  • 2
    I actually don't think this can be done legally. Especially on a roof, where you will have difficulty getting up to clean it. Your best bet might be to extend the duct a few feet above the roofline to make the vent inaccessible to rats. Oct 24, 2013 at 18:29

1 Answer 1


Dryer vents are often equipped with covers that have louvers, such as this one

louvered vent

While a determined animal might squeeze through or gnaw a hole, it offers some protection.

There are also alternatives that use a spring loaded or weighted round flap under a cover, like this one

weighted vent

Again, same issues. They come in metal and plastic. The metal may be a bit more animal proof.

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