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John Mahan

John Mahan is Vice President of Mahan Slate Roofing Company in Springfield, Mass. The company has been run by his family since 1979, and despite the fact that he was born into it, John has worked his way up the ranks as anyone else would; he started as a helper in 1998. Visit the company’s Web site at http://www.mahanslate.com/.

Video Vault: Slate Roofing Techniques with John Mahan

A skilled installer shows how to work with slate tiles.
Video Vault: Slate Roofing and Repair Techniques with John Mahan

A skilled installer shows how to work with slate tiles.
Build Like a Pro: How to Make a Decorative Window Cap Flashing

Go beyond the basics: A few additional bends of your copper piece turn this functional window cap flashing into a decorative detail
Soldering copper cap flashing

A pro shows how he shapes and solders copper cap flashing, a window's first line of defense against water
Build Like a Pro: How to Solder Copper Cap Flashing

Learn how to shape and solder copper cap flashing, a window's first line of defense against water and the best way to prevent rot, insects, and mold
Using a Sheet Brake

A professional roofer demonstrates ways to use a stationary brake
Using a sheet-metal brake

Slate-roofing contractor John Mahan demonstrates how he uses a portable brake to cut metal for drip-edge flashing
Tour a Slate-Roofing Shop

Realizing that their old shop was just too small, these roofers designed a shop with expansion possibilities.