Slate Roofing - Everything You Need To Know

The roof is an essential part of every property because it protects from harsh elements that can sometimes be dangerous to those using the property. This is why you should always put a lot of effort into choosing your roof carefully. You need to be sure that the investment you're making will give you all the benefits you need, and that can be done by choosing a superior roofing material like slate. Slate roofing is one of the most durable, versatile, and beautiful roofing options currently available in the market.

Slate Roofing Costs


Several factors like the thickness of the slates, the grade, and the quality, in general, determine the price. Even so, slate roofs aren't cheap, so most people go for cheaper roofing options. The cost of slate materials usually ranges between $6.50 and $15 per sq. ft, but that price can double when installation costs are added. Different installation companies will charge different installation costs depending on their location, the roof's size, and the roof's shape.

Slate Roofing Types

All the differnt types of slat roofs

Standard (Uniform) Slate

These slates are made with the standard dimensions as well as square cuts. They are usually installed horizontally, with their joints being placed vertically in an alternating manner.

Patterned Slate

These slates are made with different colors and patterns for those who don't want a different roof design. Patterned slates are installed with uniform slates to get the perfect pattern. Some of the common patterns include geometric patterns and floral patterns, but sometimes words and names can also be used, which gives them a unique aspect.

Random Width Slate

These are comparable to standard rates, but their widths vary even though they have the same lengths and thicknesses. Their joints are not aligned during installation, but the layout still allows the offsetting of the joints.

Multicolored (Blended) Slate

Sometimes different colors of slates are used to get a blended roof. Sometimes only two colors are used, but they are placed with random width slates. To make the roof more interesting, fading slates are sometimes mixed with unfading slates to create an interesting contrast as the roof ages.

Textural Slate

These slats are for people who don't like smooth slates. Slates with different thicknesses are used to ensure that the layout results in a rough appearance. The different thick slates are placed next to each other, which makes it normal for the corners to be missing.

Graduated Length and Thickness Slate

These slates are installed with the longest and widest at the eaves. With different lengths being installed on other parts of the roof. The narrowest and shortest slates are usually found at the top. The layout shows the graduation from the largest to the smallest slates in a consistent manner that maintains a visually appealing roof.

Like the graduated length slate, graduated thickness slate is installed with different successive thicknesses. The installation starts with the thickest sates and progresses with the thinnest slates being placed at the top.

Hang Down (Staggered Butt) Slate

These slates are also longer than standard ones, but they are usually installed with their heads on the same course line with their butts going past the line of other slates to make them appear like they are hung down.

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One of the main advantages of slate roofing is the visual appeal they have. This mostly stems from their natural beauty but can be enhanced by the different colors and patterns they have. Whether you want your roof to be green, purple, or black, you can find appropriate slates that help you achieve your roofing goals. The fact that they can also be customized by hand is a bonus that allows you to get the kind of roofing style you want. Also, slate roofing will always maintain the appearance it had when it was first installed, which will make your property stand out from the rest. Other roofing materials cannot be compared to slate in terms of durability. They can last for up to 100 years with little to no maintenance, something that no other roofing material can provide.

Slates are high-quality materials that are resistant to water. They cannot absorb water and are not susceptible to fire as well. These are essential aspects given the way roofs are usually exposed. Installing this kind of roofing relieves you from worrying about temperature fluctuations or weather changes, which can sometimes be unpredictable. Being unable to support the growth of mold and fungus also sets slate roofing apart from other roofing types. All these show that these roofs don't need any maintenance and will help you save a lot of money, especially in the long term.

The long-lasting nature of slates isn't just a benefit to you personally but also to the environment. Since they can last a millennium, installing them means that you won't have to replace them soon after installation, which in turn ensures that you don't release a lot of waste into the environment.

Apart from increasing the value of your property, the attractive nature of slates can also be your marketing feature if you want to sell the property. People will notice the roof quickly, and you may be able to sell the property quickly.

natural slate roof


Slates are durable, but at the same time, they can quickly break underweight and pressure. This means that you should never walk on your slates; otherwise, you could damage them. Replacing the slates is also difficult because they are available in lots, and each lot is unique. Finding the perfect lot to complete your roof if one section of it gets damaged will, therefore, be very difficult.

Weighing at least 800 pounds per square is another disadvantage of slates. Their heavyweight can make it harder for most properties to support them. You should, therefore, consider the structural strength of your property before installing them to confirm whether you will need reinforcements of the structure that can handle the roofing on its own.

Installing slate roofing requires a professional team with experience and expertise like KOG Roofing. Improper installation can lead to a lot of problems and, subsequently, more expense.

Companies like KOG Roofing will give you an accurate quotation after they inspect the roof and assess the amount of work that has to be done. Make sure you ask for an estimate when you contact them or any other roof installation company you want to hire.

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Common Questions About Slate Roofing

How Long Will a Slate Roof Last?

The average lifespan of slate roofs can last up to 130-200 years. The longevity of slate is one of the main reasons homeowners prefer slate. Slate is one of the few roofing options that will not need to be replaced during a lifetime. 

What is Slate Roofing Made of?

Slate roof tiles are made of metamorphic rocks derived from sedimentary rock with volcanic ash and clay. The mineral composition of the slate will determine color and weathering properties.

What Questions Should I ask My Roofing Contractor?

As a homeowner, there are several key questions you want to ask your roofing contractor. For example, many people ask about the warranty on the roof. What a lot of people don't know is there actually is two different types of warranties. One covers the materials used and the other covers the labor and workmanship. Please read over your terms and conditions of each warranty. 

How Much Does a Slate Roof Cost?

The cost of slate materials usually ranges between $6.50 and $15 per sq. ft, but that price can double when installation costs are added. Different installation companies will charge different installation costs depending on their location, the roof's size, and the roof's shape.

We are a full-service home improvement company. At KOG Roofing our focus is to provide a service that will protect your biggest investment, your home. Our roofing contractors fully certified by GAF and we are platinum Owens Corning preferred roofers. Types of roofing services we provide: 

Roof Replacement 

Roof Repair

Tile Roofing

Insurance Claim Assistance

Commercial Roofing

Flat Roofing

EPDM Roofing

TPO Roofing

Asphalt Shingle Roofing

Metal Roofing

Gutter Installation 

Shake roofing

Modified Roofing

Copper Roofing

Home Siding