Slate Roof Q & A

Could slate roofs be repaired?

Yes, slate roofs are repairable. Cracked, broken, loose or missing slates should be replaced promptly by an experienced slate roofer.


How much does it cost to repair a slate roof?

This varies on many different factors. However, one can expect to pay as low as $45 per slate or as high as $200. Factors that are considered: type of slate, fastening method of slate and complexity of roof all have an impact on the final price.


How much does a slate roof cost?

Many factors have to be taken inconsideration to install a slate roof. The following is a list of what will impact pricing:

1.) Slate color, size, and thickness.

2.) Installation method. Traditional nail on, or hook system.

3.) Type of slate style. For example: different widths, lengths, thickness, colors and shapes can all be incorporated on a single roof to create different roof looks.

4.) Variables such as valleys, hip, vents, and pipes.


What is the life expectancy of a slate roof?

A slate roof can last over 75 years. Slate is graded in three standards as S1, S2 or S3, with S1 being the highest grade. Slate grade S3 is rated to last for up to 40 years, S2 is rated for up to 75 years, and S1 has a lifespan of more than 75 years.


 What is the proper way to repair a slate roof?

A feature of a slate roof is that it is made up of many individual pieces of natural slate and separate flashing components allowing repairs to be made in specific areas without replacing the entire roof. Be aware of roofers that use cement, tar or caulk to repair slate roof tiles. Slate repair with either nails or slate hooks is the proper way of repairing a slate roof tile.


What tools are necessary for a slate roof repair?

There are several tools needed to repair a slate roof. The most common are as follows:

1.)   Slate Brackets – These brackets allow a 2″x 10″ to be inserted between the brackets allowing access to the roof.  

2.)   Slator – Secure Ladder and Tie Off Responsibly

3.)   Ridge Hook – Hooks over the ridge and uses gravity to hold the ladder in position.

4.)   Slate Ripper – tool used to remove an installed piece of slate.

5.)   Restoration Hammer – Is a heavier hammer for striking slate ripper to remove slate. Restoration hammers also have a pointed end for punching nail holes in slate.

6.)   Slate Cutter – A light, transportable tool that also trims slate to size.  Also used for decorative work.  

7.)   Slate Hooks – A hook that is lined up with the course below, and then hammered into the decking to place the new slate in position.


Many answers can be found on the internet. However, For specific questions regarding your roof, complete the online form for one of our consultation services.

An over the phone or email consulting session is a great way to get some expert help at about half the cost of an on-site consulting service. A typical phone or email consulting session is up to an hour for $99. In addition to submitting the contact form, email photos or roof plans to service@carolinaslate.com.