Next, they’re energy efficient. With a metal roof, you’ll be pleasantly surprised with a much lower heating bill in the winter, as you will a lower AC bill in the summer, especially if you’ve ever had an asphalt roof. Metal shingles, comparatively, absorb far less heat than asphalt does, relieving your HVAC system from the extra work of keeping your house cool in the summers and warm in the winters. These types of materials would not fare well in highly precipitous regions.
Another benefit of metal is that it resists moisture, a favorable trait for long-term damage prevention. This comes with a caveat, of course, which depends on what is layered underneath (we’ll explore this in more detail). Other roofing options like clay, concrete, or slate are highly porous, meaning they allow in moisture, thus more vulnerable to embrittlement and eventually, breakage.
Moisture resistance, consequently, makes a metal roof installation one of the safest options. A common but often invisible issue many homeowners face is mold, which accumulates from trapped moisture. Mold will not only deteriorate the stability of your home, but it is also unsafe to inhale, and people with certain preexisting conditions are at higher risk of health complications if exposed to mold long term.
If you do decide to install a metal roof, you’ll have to ensure certain precautions to prevent mold growth.