Slate source guide · Guide 11 of 101

Vermont slate roofing: colors, character and selection

Vermont is known worldwide for an unusual range of natural slate colors and long-standing quarry traditions. Each product still needs to be evaluated on its own documentation and intended use.

01

Color is part of the geology

Vermont sources include blacks, greens, gray-greens, purples, reds and weathering varieties. Some colors retain a more uniform appearance while others develop warm tones and variation after exposure. Samples and project photographs should represent the specified quarry and grade.

02

Specify more than a color name

A complete selection considers source, thickness, size, finish, weathering behavior, sorting and test results. Similar trade names can be used differently in the market, so the written proposal should identify the actual producer and product.

03

Use blends intentionally

Mixed colors can create historic or expressive roofs, but blend percentages and distribution should be planned. Mockups help confirm the desired appearance. Installers should draw from multiple pallets or crates as required to avoid unintended blocks of color.

Further technical reading

Recognized sources behind this guide

Slate Boss writing is original. These links provide additional standards, preservation guidance and industry reference material.

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