The lowest decibel (dBA) level is 0, which is essentially total silence. How Loud is a Metal Roof Compared to Asphalt Shingles?ĭecibels are the unit of measure used to describe sound levels. The thicker the coating and the more irregular the surface texture, the more effective a roof is at disrupting and dampening the reverberation of sound waves. Simply put, reverberation makes the sound of rain louder and longer lasting when the roof reflects sound instead of absorbing it. On the other hand, a coated and textured metal roof, such as stone-coated metal roofing, will absorb the noise from the rain. If a roof is made of a flat and uncoated sheet of metal, like that on a barn or shed, the noise from the rain will bounce and echo much longer. You'll hear the sound of your clap bouncing off the walls and the floor, and it will keep echoing for a moment before it fades away. Imagine being in a big empty room and clapping your hands. Reverberation is like an echo, but instead of hearing the sound again a split second later, the sound lasts a bit longer. Preventing sounds from hitting hard, flat surfaces is key to noise reduction from the rain.Ī flat, uncoated sheet of metal–like the smooth surface of a drum–has no way to shorten the prolonged sound reflection, known as reverberation. What to Look for in a Metal Roof That is Quiet in the Rain The stone-coated secret for a quiet metal roof.How loud is a metal roof in the rain compared to asphalt shingles?.What to look for in a metal roof that is quiet in the rain.If you’re in search of a metal roof that’s quiet in the rain, here’s what you need to know: With a complete roof assembly in place, the noise from rain on a metal roof is similar to any other roofing material. This considerably dampens the sound of rainfall on the roof. The higher construction standards for residential and commercial properties require a roof deck, insulation and underlayment. The structure of a roof plays an important role in noise reduction, as well.Ī metal roof on a barn or shed lacks a complete roof assembly. ![]() For example, stone-coated metal roofing products are peacefully quiet in the rain due to their intricate textures and the sound-absorbing cushion of stone granules. Just as the aluminum foil you use at home is a far cry from gold in fine jewelry, the different types of metal roofing can vary drastically in appearance, quality, performance and noise levels in the rain.Īn uncoated sheet of aluminum on top of a barn or shed is noisier in the rain than metal roofing products used on homes and commercial properties. This is one of the most frequently asked questions we hear from homeowners interested in metal roofing, so we’ll get right to the point–no, metal roofs are not loud in the rain.īut it’s important to note that metal roofing is a broad term that can be broken down into subcategories.
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