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Do Metal Roofs Make a House Hotter?

No, metal roofs don’t make houses hotter than other materials. Metal roofs have a low thermal mass which reflects light and heat rather than absorbing it. What this means is that a metal roof can actually keep your house cooler in the summer months because it increases the energy efficiency in your home. For those who live in the South and the Midwest – this is great news.

Will a Metal Roof Make My House Hot?

Your roof is your home’s primary defense against many harmful things. Pesky animals, inclement weather, and debris from trees are just a few of the annoyances that roofs protect you from. When looking to get a new roof, most people just replace the roof they have with more of the same. Have you ever wondered about making a change to some other type of roofing material? Metal roofing can be an extremely cost-effective, stylish, and low-maintenance option but do metal roofs make a house hotter?

So, do metal roofs make a house hotter? No, metal roofs don’t make houses hotter than other materials. Metal roofs have a low thermal mass which reflects light and heat rather than absorbing it. What this means is that a metal roof can actually keep your house cooler in the summer months because it increases the energy efficiency in your home. For those who live in the South and the Midwest – this is great news.

There are different degrees to the amount of heat a metal roof can absorb, depending on the type of finish, color choice, and sun exposure. We’ll explore this and more right now!

How Much Heat Should I Expect My Metal Roof to Absorb?

Three categories will help determine how much heat your metal roof will retain.

  1. Type of Finish: Metal roofs have many different coatings and finishes available to choose from that are certified to reflect sunlight. You’ll want to talk to your contractor about which ones will be best for your home regarding sunlight exposure.
  2. Color Choice: Every house has curb appeal, and choosing the color of your roof is an important part of that. Metal roofs have several color options to choose from. Just like any other surface though, darker colors will absorb more heat than lighter colors.
  3. Sun Exposure: A metal roof that is subjected to sunlight constantly is going to absorb more heat and adjust with the amount of sunlight present. Choosing a material that is thinner and lighter will lose heat faster than thick material and will prevent heat from transferring into the house.

Metal Roofing

Metal Roof vs. Asphalt Shingles

When choosing between another shingled roof or a new aluminum roof, weighing the pros and cons is a good place to start. The differences between aluminum and shingles can be summed up in two main ways: maintenance and durability.

Asphalt shingles have been the norm for a long time now, and they’re effective! However, the cost and longevity of a shingled roof are far more expensive and far shorter than that of a metal roof.

A bonus to installing metal roofing – the sound it makes when it rains. If you enjoy storms or just a little bit of white noise, you can’t go wrong with a new metal roof. And if you’re worried about the “look” of a metal roof, they can actually be designed to look like shingles, slate, tiles, shakes, or vertical panels!

heat from a metal roofMaintenance of Metal Roofing

The first, and strongest, benefit of aluminum roofing is the low amounts of necessary maintenance needed throughout the year. Aluminum is a much smoother material than shingles. This causes debris from trees to either slide off the roof when it hits or at least slides to the edge to be easily cleared with little effort.

This effect keeps your roof clear of obstructions so water does not pool up on the roof and cause issues with drainage and leaks. Power washing or scrubbing your roof every other year can keep it free of sap and other grimy substances that may collect on the surface of the aluminum.

Durability of Metal Roofing

Aluminum metal is known for its long-lasting durability. This makes it a great material to use for your roof. A roofing contractor can install a quality aluminum roof on your home that will withstand anything you could throw at it – and oftentimes, it only takes one day to install!

The aluminum sheets are usually coated in a strong and durable layer of powder coating to help them withstand the abuse that storms and animals can put them through. This coating comes in multiple colors to add some style to the top of your home and to match it with the siding color.

Aluminum roofing can be a very inexpensive way to add durability and longevity to your roof. Depending on the material you choose, your metal roof can last 40-70 years, in contrast to the maybe 20-30 years you can get from a shingled roof.

metal roof durability Cost Difference in Metal vs. Shingle Roofs

When it comes to the cost of installing a metal roof – you may be surprised at the upfront price. Install is a more specialized job than it is with asphalt shingles and because of that, it can be a bit more expensive.

A metal roof can cost anywhere from $100-$900 per 100 square feet, whereas shingle roofs can cost $100-$200 per 100 square feet. However, you will likely recoup the extra cost in longevity, insurance coverage, maintenance repair, and energy bills.

If you decide to install metal roofing, you will likely outlive it and never need to replace it. With asphalt shingles – you will need to replace your roof at least twice in your lifetime, especially if you live in an area where the weather can cause damages.

Some insurances also offer discounts for homes with metal roofs and you’ll save money from your home’s energy bills. Maintenance repair is inexpensive, quick, and easy as well – and not required very often. Though you will likely pay more upfront, the money is worth it and you’ll recoup it easily in the years to come.

Choosing a Metal Roof

Once you decide that a metal roof is perfect for your home – you won’t regret it one bit! Quick install, low maintenance, beautiful look, and longevity will keep your home looking amazing for years to come. Call a professional today for a consultation and a quote, and start picking out your color.

Related Questions

Is there a resale value from having a metal roof? Homeowners are very interested in knowing the resale value of their homes. What some people may not realize is that metal roofs are a huge asset to increasing the value of your home. Because of the lowered energy costs, insurance companies may offer up to 30% discounts, which causes your home’s value to skyrocket.

Is a metal roof safer than asphalt shingles? Yes, it is! Metal roofs won’t spark or ignite from lightning strikes or wildfires – and have even saved some homes from wildfires. They stand up well against other extreme weather elements like heavy rain, wind, ice buildup, and extreme temperatures. As with anything you install in your home, make sure you use a professional. An improper install can create more problems and cost down the road.

Written By

Hi there! My name is Matt and I write for Expert Home Report. I enjoy writing about everything related to home improvement, home tips and DIY. In my spare time, I'm either spending time with my family, doing a DIY project or learning a new skill.

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