Can you Put a Metal Roof Over Wood Shingles?

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Yes, it is possible to install a metal roof over existing wood shingles. This type of installation is often quicker and easier than removing the old shingles before putting on the new roof, saving both time and money.

However, precautions must be taken to ensure that the insulation between the metal and the wood is sufficient to prevent issues such as condensation or heat buildup. Professional installation is recommended for achieving optimal results.

The weight of the metal roof can be tricky because those types of roofs tend to be much heavier than other materials like wood shingles or asphalt.

You’ll need a solid foundation and structure so that your roof can properly support its weight.

A qualified contractor should inspect your home before recommending a metal roof and make sure it’s still strong enough to handle the addition.

Other considerations before you get a metal roof include making sure you have good water drainage, insulation methods, ventilation, and a weather layer of protection for your home.

It’s wise to research what local codes and permits might be required when doing certain construction projects around the house.

For example, most locations need specific permits for installing metal roofs due to their heavier material weight, fire resistance standards, etc., so it would be beneficial to know everything ahead of time.

Adding a Metal Roof Layer on Top of Wood Shingles


Before you install a metal roof over your existing shingles, do some research. Starting with what type of metal roof will best suit your atmosphere, budget, and building. Once that’s established, it’s important to think about the R-value of the thermal insulation in the existing walls and attic spaces.

Next, consider whether or not more insulation needs to be added around the underlayment before installing the metal roof. That way, heat loss won’t be an issue during colder months. And finally, make sure you check if additional support may need to be added before beginning installation.

When it’s all said and done, installing a metal roof over wood shingles can help protect buildings from weather damage while providing other benefits such as durability, longevity, and energy savings over time. Plus, Extra provisions make it beneficial to both people and our planet by reducing landfill impact.

What type of Metal Roof?

Metal roofing is a popular choice for most residential homes and businesses because of the range of styles and colors available. Metal roofing can come in the form of shingles, which are designed to look like traditional asphalt shingles or wood shingles, or panels, which lay flat, giving roofs a sleek look.

Can a metal roof be installed over wood shingles?

You may want your metal roof installed over an existing wood shingle roof; however, from a practical standpoint, this is not recommended.

Metal shingles are not able to withstand installation over existing wood, so if you go with metal shingles, you will need to remove the existing roofs before continuing with the installation.

However, if you choose metal panels, they can be installed directly on top of an existing layer of the same material (wood) without having to tear down current roof structures.

What should I look out for?

Before you begin installing a metal roof, it’s important that you examine the state of your existing roof and make sure it is secure and leakproof.

Pay close attention to any unevenness or dips in the original surface, as these could affect the way the new layer looks after installation, even if everything else seems in order from afar.

In some cases, it might be best to tear down any pre-existing structure and start fresh in order to ensure that everything looks good once all is said and done.

What is Secure Attachment?

Secure attachment is the process of attaching a metal roof or any other kind of roof to a structural component, like rafters or trusses. It can be done with nails, screws, or even rivets and is essential for making sure that your roof stays in place and won’t fly off during high winds or any other weather-related events.

The secure attachment also prevents water from seeping up between the layers of roof materials used in constructing your new roof, ensuring that no moisture will get inside your home. It helps protect your home from condensation problems caused by temperature differences between the outside air and the interior of your house.

When doing secure attachment, it’s important to make sure that you have enough space between the material layers for proper nailing depth. If you don’t, then your fasteners might not be able to penetrate deep enough into the layer beneath them to reach their intended structure.

Also, building codes may restrict how many layers you can have if there was already a previous layer installed—adding another could negatively affect built-in features like skylights and vents.

The crucial step for having a secure attachment for your metal roof is to check whether the existing wood shingles are thick enough for the nail to penetrate into the structural component. If not, installing a metal roof will be impossible as the nails won’t be able to reach deep enough.

How to Securely Attach a Metal Roof Over Wood Shingles

Installing an additional layer of roofing might not be possible due to restrictions according to the building code. It’s important to check with local and national regulations before beginning any home project.

Additionally, adding another layer could increase the depth of your roof, influencing any pre-installed features like skylights.

Should you use Underlayment For the Roof?

Yes, you need to use underlayment for a metal roof over your existing shingles. It serves as additional protection from water and other external elements like the wind. It also helps the metal roof stay in place and may even be required by some building codes.

Plus, when installing the underlayment, it is extremely important to overlap subsequent rolls of the material at least four inches so that any water that finds its way beneath the metal roof will be effectively channeled away from your home’s interior.

Using underlayment also adds an extra layer of insulation against heat or cold coming through the roof. If installed properly and to recommended specifications, this can help reduce energy loss throughout your entire home, significantly helping you save money on utility bills.

Lastly, because a sheet of ice can form on top of exposed nails if moisture creeps in between your shingles into your wood decking, the underlayment helps avoid any issues with snow buildup, which can lead to damage and leaks down the road.

What’s Cheaper to Install – A Metal or Wood Shingle Roof?

When deciding between a metal roof and a wood shingle roof, it’ll depend on the cost and your needs. Installing a wood shingle roof for an 1800 sq. ft home will cost you about $7500 to $11500, whereas metal roofs can range from $9000 to $40,000, depending on the type of metal used.

Though the initial price tag for a metal roof may be higher than that of wood shingles, metal roofs can last up to four times as long, which should be taken into consideration before making an investment.

Besides the longevity factor of a metal roof, there are other benefits, such as being energy-efficient and weather resistant — two integral traits for any reliable rooftop material.

Also relevant when budgeting for installation is whether you’ll remove the existing shingles or not, as this could add more costs along with any labor or disposal fees associated with tearing away your existing materials.

What are the types of metal roofing?

There are a number of options when it comes to choosing the type of metal roofing for your house. Aluminum, steel, and copper are all popular choices that come with a range of durability, price points, and environmental concerns.

Aluminum and steel roofs both provide excellent protection against weather elements and strong durability. Steel is more prone to rust in salt-filled environments, while aluminum resists corrosion in these areas.

Steel is also the most cost-effective option out of these three materials.

For homeowners looking for something a bit luxurious and worth investing in, there is copper roofing. Though much more expensive than aluminum or steel roofs, copper roofs are extremely aesthetically pleasing and can easily outlive the home they were installed on.

However, due to its soft nature, large hailstones could dent the copper roof and should be avoided in certain environments.

What are the Benefits of Metal Roofs?

Metal roofs offer a myriad of advantages over other roofing materials. They last much longer, require less upkeep and maintenance, and come in a variety of styles that can give your home a unique look.

Additionally, metal roofs reflect heat from the sun, which helps lower utility costs. On top of that, metal roofs are extremely durable—able to withstand high winds, hail storms, and snow—and can often be installed without needing to tear apart the existing roof.

Can a Metal Roof Increase Property Value?

When it comes to whether or not a metal roof adds value to your home, it depends on more than just the material used for installation.

As the 2019 remodeling impact report showed, any new roof may increase your home’s value at resale time, but it will likely cost you much more to add a metal roof than you recoup in return from an increase in home value.

However, if increasing your property value is not the only reason for considering a metal roof but merely an incentive among other benefits offered by this particular type of rooftop material, then you’re far better off making that calculated decision based on longevity and energy efficiency instead.

What Other Pros Do Metal Roofs Offer?

The long life span of metal rooftops makes them incredibly cost-effective in the long run due to less general maintenance and upkeep compared to traditional asphalt shingles and other types of roofs.

Plus, their ability to reflect solar radiation makes them up to 50% more efficient than standard asphalt shingle roofs when it comes to cooling your home during the hot summer months.

Additionally, some metal roof designs are so lightweight that there’s no need for demolition when installing them onto an existing structure—you simply lay down sheets on top of an existing surface with minimal structural change needed—which also translates into reduced costs too.

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