Building Stone Walls by Charles McRaven

Author:Charles McRaven
Language: eng
Format: epub
Publisher: Storey Publishing, LLC
Published: 1999-03-25T16:00:00+00:00

Wedges help reestablish the sloping angle that holds the stones in place.

Working with Tie-Stones

In the cross section of a freestanding wall, you see two walls leaning into each other. However, because this is a precarious balance in which the two walls can come apart, masons tie across the wall whenever possible with a tie-stone, a stone that spans the width of the wall and provides stability and support.

Tie-stones must be laid completely flat, or they will creep downhill with freezes and thaws. They’re especially important for capping the wall (in which case they’re called capstones), for they hold it together and keep out rain, which will freeze and push the wall apart. Capstones also make it more difficult for dust, leaves, and other debris to blow into the wall, where they can nurture tree seeds; allowing tree roots to sprout in your wall is guaranteed to force it apart.

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