Does metal roofing save energy?

Does metal roofing save energy?

The roof is the part of the building that receives the most sunlight, so the performance of the roofing material determines the energy efficiency of the building. Among the traditional roofing materials, although clay tiles and slate tiles are beneficial to save energy, they are expensive and heavy, making them unpopular. Asphalt roofs are even more detrimental to energy efficiency. Lightweight metal roofs have become one of the most popular energy-saving roofing materials on the market. It reflects heat and keeps the indoor temperature comfortable.

Before evaluating the energy efficiency of roofing materials, it is necessary to understand which term is:

Emissivity: The ability of a roof to radiate solar heat away.

Reflectivity: the ability of a roof to reflect heat back to the source of energy

Thermal Resistance: The ability of a material to resist heat flow

Emissivity of Metal Roofs

The emissive properties of metal roofs are great at keeping buildings cool and reducing energy costs, which some large warehouses take advantage of. The paint coating of the metal roof not only protects the internal metal from corrosion, but also plays a good role in emitting solar heat.

JHL Roofing's roofing products can do this well, such as standing seam metal roofing, stone-coated steel roofing. And stone-coated steel roofs are not the same as the metal roofs you see in warehouses or commercial buildings.

First, JHL Roof stone coated steel roofs don't look like metal roofs. The granular stone coating on its surface perfectly replicates the appearance of asphalt roof tiles, Spanish barrel tiles, and Wood shake.

Second, the particles contain infrared-blocking coatings capable of emitting up to 90 percent of solar radiation into the atmosphere.