That's a fantastic question! It shows you're thinking ahead about protecting your investment. The good news is, yes, many outdoor benches can work wonderfully under a covered porch or roof. However, not all are created equal for this specific spot. The key is understanding how the partial protection changes what you need.
A roof overhead is a huge advantage. It shields your bench from the full force of sun, rain, and snow. This means you have more flexibility in materials than for a fully exposed patio. You can confidently consider benches made of wood (like teak, cedar, or acacia), powder-coated metal, all-weather wicker, or even certain composites.
But "under a roof" doesn't mean "immune to weather." Your porch bench will still face humidity, morning dew, indirect sunlight, and possibly wind-blown rain. Therefore, avoid materials that are strictly for indoor use, like untreated pine or fabrics not labeled as outdoor-grade. Always look for benches marketed for outdoor use, as they are built to handle moisture fluctuations.
For a truly worry-free choice, prioritize benches made from naturally weather-resistant woods or those with a durable, protective finish. Adding a coat of sealant for wood or a protective wax for metal every year or two will greatly extend its life and beauty. With the right selection, your covered porch bench will become a cherished spot for relaxation for years to come.