Slate Roofing Cost Guide for Homeowners in 2020

Slate roofing is an attractive and durable option that was quite popular in Europe, and made its way to the US in the 19th century. A properly installed slate roof can last from 50 to 100+ years. Slate roofs are very expensive, but their quality, beauty, durability, and superior longevity can more than make up for the higher initial cost.

Traditional Home with a Slate Roof
Traditional Home with a Slate Roof
Install Roof Shingles

Average price
Install Metal Roof

Average price
Install Flat Roof

Average price

See costs in your area Start Here - Enter Your Zip Code


Expect to pay between $11.00 to $18.00 per square foot for mid-range natural slate tiles. A higher-end, thicker slates with longer lifespan could cost some 30% to 50% more to install. The size, accessibility, and complexity of your roof will have a major effect on cost. Your location will also have a major impact on total cost installed.


There are a number of important considerations that should be taken into account when choosing a slate roof. Slate roofs are considered highly desirable. They are often installed to create a traditional, or period look. Slate roof is fireproof and water repellent. Slate roof will last for a very long time (sometimes for well over a century), while requiring only occasional maintenance.

Installation Points

Slate roof is extremely heavy, therefore, it needs to be supported by a strong roof frame that has been properly designed and reinforced to withstand the weight of stone tiles. Natural slate tiles should only be installed on roofs that have a reasonably steep roof pitch.

If you decide that slate is the right material for your home, then it is important to ensure that you choose the best type of slate for your roof. Slate is available from many locations around the world, and it is produced to many different standards. Picking the highest quality slate is important if you want to reduce the chance of breakages and leaks occurring. Quality can really go a long way, if you want your new slate roof to last as long as possible.

Estimated Roof Costs (1620 s.f.)
Asphalt Shingles
Metal Roofing
Flat Roof
See Roof Costs in Your Area

Material Considerations

The appearance of the slate is very important to most buyers. Slates come in a range of different colors, including black, blue, green, tan and gray. It is, therefore, possible to choose the slate that will be the best match for your home, and your own taste.

Although the cost and color of slates are likely to be an important factor influencing your decision, it is also important to consider a number of other factors; the type of slate, the size and the thickness. A good slate should retain its color over time, rather than fading away quickly. Poor quality slates can stain your roof due to the leaking of pyrites from the slates.

The manufacturing process is particularly important for the quality of roofing slates. A high quality manufacturer should have excellent quality control procedures that will help prevent any problems with the slates. Manufacturers who care about the quality of their products will remove unfit slates rather than selling them. Some manufacturers drill their slates, while others punch the holes through slates. When you are buying slates, it is critically important to find a reliable, and a high quality slate roofing supplier.

It is usually best to choose slates of a standard thickness, produced by a reputable manufacturer, with punched holes. There are many good Canadian and American producers of slate roofing, but it is also possible to find good sources from overseas.

The thickness and size of the slates will have important consequences for their installation. The thicker the slate is, the harder it will be to cut it. This means that thick slates are, therefore, best suited for the most experienced roofer to install. The size of the slates can also be important, since the smaller the slates are, the longer it will take to lay them on the roof.

The choice of slate for your roof is not the only important aspect of slate roofing. It is also essential to ensure that slate tiles are laid properly in order to prevent problems with premature roof leaks or condensation building up around the frame of your roof.

For example, an experienced professional will be able to grade the slates properly by installing the thinnest grade slates at the top of the roof, and the thicker ones lower towards the bottom of the roof. — This will help ensure that a slate roof will last longer, as well as making it look more uniform and attractive.

Not Suitable for All Roofs

Due to their heavy weight, slate tiles may not be suitable for all roofs. You may have to check with a structural engineer to see the maximum amount of weight your roof could support before investing in a slate roof.

Need a Roofer? Get 4 Free Quotes From Local Pros:

Start Here Enter Your Zip Code:

Leave a Reply