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Posted by McElroy Metal ● Feb 22, 2024 3:29 PM

Does a Metal Roof Affect Wifi?

If you are roof shopping, you are in an exciting season of life! Whether you are building a new home or replacing your roof, big home projects are thrilling and packed with decisions. From considering practical needs to dreaming up your aesthetic, many factors must be weighed when selecting your materials. If a metal roof is on your wish list, you aren't alone - more and more homeowners are choosing metal for their roofs, and with good reason!

U Panels Example 3There is no question that metal panels offer a reliable, sustainable solution for roofing.

One question we are often asked is whether residential metal roofing affects the signal and strength of Wi-Fi. We understand this concern! Although it is uncommon to encounter a weak signal because of a metal roof, we offer some useful tips to enhance Wi-Fi signal strength in any structure.

Before diving into how to get the most from your Wi-Fi service, let's look at how this incredible technology works.

Understanding Wi-Fi: A Quick Overview

Wi-Fi is the wireless technology that connects computers, tablets, smartphones, and other devices to the internet. A radio, or Wi-Fi, signal is sent from a wireless router to a nearby device, which translates the signal into data you can see and use. The device transmits a radio signal to the router, which connects to the internet by wire or cable.

The strength of the Wi-Fi signal determines the quality of the connection, and a weak Wi-Fi signal can interfere with smartphone functions, streaming, downloads, and more.

Several aspects can affect the strength of your Wi-Fi signal:

  • Distance from the router
  • Poor positioning and physical obstructions
  • Outdated technology
  • Conflicting electrical devices

Although many factors can impact your Wi-Fi signal, there are also many solutions to boost your signal and enhance service. While metal roofing can occasionally play a role in signal strength, it typically doesn’t cause excessive interference, and the pros far outweigh the cons of this roofing selection.

Metal & Myths

While metal is generally accepted as a premier roofing product, some myths might cause homeowners to question its use. We've identified a few common misconceptions about metal roofing and its impact on Wi-Fi signals and provided insight into these concerns.

Misconception 1: Metal roofs completely block Wi-Fi signals

Reality: Wi-Fi signals (2.4GHz and 5GHz) easily pass through thin metal sheets used in roofing. While there might be some minor reflection or weakening, it's usually minimal and shouldn't cause major issues.

Misconception 2: A metal roof will always cause poor Wi-Fi connection

Reality: Several factors impact Wi-Fi strength, including router placement, distance from devices, interference from electronics, and outdated equipment. A metal roof is rarely the sole culprit for bad Wi-Fi.

Misconception 3: You can't have good Wi-Fi with a metal roof

Reality: Millions of homes with metal roofs have excellent Wi-Fi connections. Modern routers have powerful capacity, and proper router placement and other strategies ensure a strong Wi-Fi connection under any roof.

In addition to the positive technical facts about Wi-Fi and metal roofing interference, we also have the evidence of thousands of homeowners who have had an excellent experience with their selection.

We recently spoke to Kathi, a homeowner who has lived with a McElroy Metal roof for two decades. She says, “We’ve had a metal roof on our home for over 20 years. While we need to be a bit more strategic about router placement than some of our friends with shingle roofs, we can easily stream TV and surf the net. We even both work from home and use virtual meeting platforms like Zoom™ and Teams™ without issue.”

It is important to remember that every situation is unique. If you're experiencing Wi-Fi issues after installing a metal roof, consider these strategies to mitigate any signal lag.


When evaluating the Wi-Fi setup in your home, consider the factors that can diminish Wi-Fi reliability and use our strategies to create a network that works for you.

1. Reposition Your Router

To maximize the output of your Wi-Fi router, place your router in an open, central area of your building.

Extra Tip: Physical obstruction can impact your system's wireless reach; ensure no large pieces of furniture, concrete walls, or appliances like microwaves block your router!

2. Update Your Router

Find your router's IP address and give it a search online to explore available software updates to increase the function and speed of your router.

3. Replace Your Router

Wi-Fi is a quickly evolving technology, and if your router is outdated or underperforming, it could compromise the total capacity of your Wi-Fi network. Contact your service provider to discuss the best device for your needs.

4. Access Point Placement

The access point is a device that connects to your router to create a wireless network in your space, like a bridge between the router and your devices. The strategic placement of this device is crucial for a robust and accessible network.

5. Add An Antenna

Another option to extend your Wi-Fi's reach is adding an external antenna. Even if your router has an antenna attached, a separate piece can boost the range and smoothness of your connection.

Extra Tip: Position your external antenna at a 90-degree angle for the best results!

6. Invest In A Mesh Network

If your home has several Wi-Fi users that outpace your internet's capacity, consider utilizing a mesh network. A mesh network is a group of connectivity devices like Wi-Fi routers that act as a single network, providing multiple points of connectivity.

Extra Tip: Additional unused devices can divert your Wi-Fi and minimize what is available for your daily use. Unplug unused gaming consoles, baby monitors, and other devices to maximize your streaming!

7. Wire In

If wireless Wi-Fi proves to be slower than your needs require, you can directly tether your device to your router through a wired connection. This will supply reliability and a consistent speed. Just connect your device with an Ethernet cable directly to the Ethernet port.

In Summary

It is wise to consider all possible effects of any material used to build your home, and thorough research is vital to being satisfied with your decisions. We hope our insight on this topic has proven helpful in showing that the advantages of a metal roof far outweigh any downsides, and it is highly unlikely for metal roofing to significantly impact your daily Wi-Fi usage. You can have your ideal residential metal roof and enjoy the Wi-Fi capacity you need to work, play, and everything in between.

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Credits: Verizon, ATT Savings

Learn everything you need to know about Residential Metal Roofing. Check out our metal roofing resources for inspiration and answers to your questions.

About McElroy Metal

Since 1963, McElroy Metal has served the construction industry with quality products and excellent customer service. The employee-owned components manufacturer is headquartered in Bossier City, La., and has 14 manufacturing facilities across the United States. Quality, service and performance have been the cornerstone of McElroy Metal’s business philosophy and have contributed to the success of the company through the years. As a preferred service provider, these values will continue to be at the forefront of McElroy Metal’s model along with a strong focus on the customer.

Topics: Metal Roofing, FAQ

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