Do Foam Spigot Covers Work?

They work well in the South where freeze-resistant spigots aren't standard and temperatures don't get far below freezing for very long. The insulated cover retains heat from the daytime sun and slows the escape of heat from the building through the spigot, keeping it above the freezing point overnight.

Should you cover your outdoor faucets?

The last step to winterizing outdoor faucets is to protect them with insulation. ... In most situations, however, the faucet cover will provide enough insulation. Frost-free spigots should be covered, as well, because, although they are resistant to freezing, they are not completely frost-proof in the coldest weather.

Do faucet covers actually work?

Faucet covers work by trapping heat that naturally radiates through the interior pipes to the outdoor spigot. The insulated cover prevents this radiated heat from escaping and therefore prevents water in the faucet from freezing, expanding, and rupturing the spigot.