There’s a common misconception that metal roofs make your home hotter in the summertime. But the truth is if you select the right metal roof design and have the proper insulation in place, your home will stay cooler – even on the hottest days!
In this blog post, Tiger Roofing LLC will explore some factors that play into how hot your home gets with a metal roof.
Materials for a Roof:
The metal roof would not heat your home more than your current roof material. When the sun goes down, the exterior of your metal roof will cool off far faster than your present roof.
Metal roofing will undoubtedly heat up when exposed to direct sunshine, but whether it warms up more or less than other materials depends on the color and finish/coating.
It’s general knowledge that lighter colors absorb less heat than darker colors. It should also be noted that, except for specifically built ‘cool roof’ materials, similarly colored roof products absorb heat at nearly the same rate regardless of material.
Cool metal roofs reflect some of the sun’s energy, lowering building temperatures in hot weather. Cool metal roofs contain coatings intended to reflect the sun’s energy. A conventional prepainted metal roof will not reflect as much energy as a cool metal roof, but it will still cool down quickly compared to non-metal roofing materials.
After sunset, lightweight roofing materials often lose the most heat and recover to ambient temperature the fastest. In warmer regions, metal roofing becomes the clear victor. Heavier materials absorb and retain heat, such as slate, concrete, and asphalt. The longer they remain heated, the more heat they may transfer to the building’s interior.
Yes, the color and material of the roof impact how much heat it collects. The roof, however, is not the primary source of heat being transferred into a room below. It’s the structure that connects the roof to the space below. If the room under the roof has an attic, managing the attic’s temperature with a “cool” roof, such as metal, is crucial, but effectively venting the attic to keep it within a few degrees of atmospheric pressure air temperature is even more critical.
Properly ventilating the attic gives the insulation in the ceiling the best chance of keeping the room from gaining heat from the ceiling. Once you’ve ensured your attic is adequately ventilated, the next most important consideration is the ceiling insulation.
The better the insulation, the less heat will transfer from the attic to the room below in summer.
You know that metal roofs help keep your home cooler by reflecting the sun’s rays. Thermal conductivity isn’t everything, and increased conductivity can be beneficial. Check your insulation and cooling system when your home becomes too hot, not your metal roof!
If you’re thinking about installing a metal roof on your home, contact Tiger Roofing in Kaufman, TX. We’ll assist you in locating the ideal roof for your requirements.
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