Are stone covered metal roofs noisy in the rain

This is one of the most common questions asked by homeowners interested in sand coated roofing sheets. We cut to the chase – no, stone-clad metal roofs aren't noisy in the rain. Preventing sounds from hitting hard, flat surfaces is key to noise reduction. A flat, uncoated sheet of metal, like the smooth surface of a drum, has no way of shortening the prolonged reflection of sound, known as reverberation.

The structure of a roof also plays an important role in noise reduction. If you've ever been in a garage, shed, or structure that lacked a full roof assembly, you've probably noticed the noise and reverberation of rain. Without the roof deck, insulation, and underlayment, an uncoated sheet will sound loud in the rain. But as soon as these construction elements are added, the noise levels return to what one would generally expect with any other roofing material.

But Stone Coated Metal Roofs products are more advanced than a flat, uncoated sheet of metal. 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.

For example, Stone Coated Metal Roofs products are peacefully quiet in the rain due to their intricate textures and sound deadening cushion of roofing granules.

How does stone clad metal roofing absorb sound?

Stone coated metal roofs have multiple layers of coating which, in addition to being effective for corrosion resistance and increasing tensile strength, also acts as an additional noise barrier. This means that the noise impact on the roof is significantly reduced.

It is important to note that uncoated metal roofing products may require soundproofing underlayments during the installation process. Modern synthetic soundproofing underlayments cost around $8 per square foot, not including contractor time and labor expenses, so it's important to note that an uncoated metal roof can require additional cost when installing.