What Color Siding Goes With A Flat Roof?

When deciding what color to paint your flat roof, you want to consider the best one. Below are examples of flat roof color ideas for your next roof project. Additionally, you might want to check out the article, How Long Does Metal Roof Paint Last?

Gray Siding

Brand new apartment house

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One of the most common roof colors for houses of all kinds is gray. It has a terrific neutral tone. It serves as an excellent base for various color palettes, such as slate gray roof tiles or dark charcoal roofing.

Gray is a neutral color that can match your roof and siding because many homeowners and home designers love to put different color combinations into their houses. 

Blue Siding

Modern luxury white house with garage

One color intended to hold on to water above the waterproofing layer is "blue." A blue roof purposefully holds part or all of the water, temporarily or permanently, instead of allowing it to drain instantly. These roofs will catch rain and other precipitation, allowing for slow drainage or redirection for later use. 

Black Siding 

Modern house with garage and terrace

Another helpful method for limiting your color combination is selecting a color palette. Homeowners continue to favor black roofing as one of their top options. Black roofs are an excellent alternative for many homes because they offer affordability, durability, and appealing aesthetics when put together with good quality material.

Unfortunately, this color has some drawbacks. Black roofs don't do a good job of reflecting heat. They will absorb much more heat and reflect far less heat than a lighter-colored roof. However, this does not necessarily make them undesirable. Black roofs look wonderful and are a good long-term alternative, but they will absorb a lot of heat and may increase energy costs.

Green Siding

Most old homes, bungalows, and even contemporary architectures use the complementary color scheme of white and green.

By covering the components of a roofing system from direct UV rays and severe temperatures, a green roof can lengthen the lifespan of the roofing system. As a result, the roof structure may need less maintenance, saving you money on replacement costs.

Digitally generated modern family house

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White siding could help boost a building's energy efficiency. It could also help lower roof temperatures and electricity bills while extending the roof's life by reflecting unwanted solar heat gain. Last, it also helps disperse heat rather than trapping it within the vicinity of your house.

What Is The Major Advantage Of Using A Flat Roof?

The major advantage of a flat roof compared to a pitched roof is it lowers costs for building and repairs. Flat roofs use less material than pitched roofs, since they are more compact. Using a flat roof lessens the costs and also saves money if major repairs are required.

Keeping bushes and shrubs neatly trimmed and maintained can deflect attention from a home's flat roof. Additionally, well-maintained landscaping edges, such as attractive sidewalks and driveways, may deter a passing home buyer from focusing on a flat roof line.

Best Roof Covering For A Flat Roof

The material you use to replace your flat roof is a vital choice. To accomplish this, you must know what materials are ideal for a flat roof. Four flat roofing materials stand out among the options currently available.

EPDM Membrane Roofing

A synthetic rubber black membrane known as EPDM (ethylene propylene diene terpolymer) is frequently used in industrial and healthcare buildings. While primarily for commercial applications, EPDM can also be used for residential roofs.

EPDM is incredibly robust and is essentially a bulletproof rubber roofing material. Because of its resilience, a fully attached 0.060-thick EPDM flat roof should last 40 to 50 years.

Because of the heat that the dark material will absorb, we wouldn't advise using it over a bedroom or living area. However, because the black membrane won't get as dirty as a white one, EPDM is a fantastic alternative for a flat roof over a garage or any non-living space seen from a window.

TPO Membrane Roofing

A single-ply white membrane called TPO (thermoplastic polyolefin) is used for roofing on commercial and residential buildings. TPO's white membrane, in contrast to EPDM, reflects heat rather than absorbing it.

Nevertheless, keep in mind that a white membrane will become dirtier more quickly than a black membrane if you have a window that is in its line of view. Even while TPO membrane isn't as long-lasting as EPDM, with appropriate installation, you can still count on getting 25 years out of a flat TPO membrane roof.

PVC Membrane Roofing

The single-ply white PVC (polyvinyl chloride) membrane is also used for roofing homes and businesses. For any flat or modest slope over a living area or bedroom, PVC is a fantastic material option.

The only significant distinction is that PVC is a little more flexible and has been used longer than TPO. Like TPO, a PVC flat roof can last up to 25 years if installed correctly.

Standing Seam on a Metal Roofing

Multiple metal panels with mechanically or mechanically locked seams make up a standing seam metal roof system. If the metal panels experience thermal expansion, this permits free expansion and contraction of the panels.

If you installed your standing seam metal flat roof correctly and ventilated your attic properly, it should last for at least 30 years. A standing seam metal flat roof might last 50 years with the proper maintenance.

Although it will cost more than the other three varieties of roof membranes, the added life and beauty of a standing seam metal roof comes at a greater cost.

Do You Need Gravel On A Flat Roof?

Gravel mulch on the roof of a flat green roof

Providing a loading coat and UV protection are the two main functions of gravel and pea shingles on a flat roof. With the gravel acting as ballast, the stuff below will be securely fastened and less likely to be blown away during strong winds.

At the time of the first application, the shingle and the surface material should be firmly bonded. In most cases, this is accomplished by either being applied on heated mastic asphalt roofing during installation or anchoring with bitumen glue.

It will not be possible to create a surface that can endure the test of time by simply sprinkling stones on an unprepared or dry roof, and this can be interpreted as poor craftsmanship.

What Gravel Do You Put On A Flat Roof?

The last layer of asphalt has a layer of gravel, or small stones, to shield the roof from the elements, such as hail and ultraviolet (UV) radiation. It helps the gravel stay where it is embedded into the top layer of asphalt, sometimes referred to as a flood coat.

The gravel provides an essential additional layer that lengthens the life of a flat roof. Despite being frequently referred to as gravel, the top layer is typically some aggregate material such as pea gravel, slag, or mineral granules.

Do You Need Underlayment For A Flat Roof?

The material known as roofing underlayment is positioned between the roof shingles and the roof deck, commonly made of plywood or OSB. It is immediately attached to the roof deck and offers an additional layer of defense against the weather, including wind, rain, and snow.

For most flat roofing, it's not always necessary to have an underlayment. You should use this on low-sloped roofs and in places around your house with a significant risk of flooding. Additionally, it can increase your home's ability to resist fire.


Choosing the best color for your flat roof and siding that fits the overall design of your house is one of the hardest decisions to make. You can have various choices, but the best colors are white, black, green, blue, and gray.

Before you go, check out also these helpful posts:

Can You Walk On PVC Roofing?

Can You Put A Metal Roof Over Wood Shingles?

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