Jargon Buster - Letter H

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Hardcore
Broken bricks or stones used to form a sub-base below paving, foundations etc.

Head
The height of the surface of water above a specific point - used as a measurement of pressure.

Header
The end face of a brick.

Header Tank
Small open tank that feeds water to central heating system.

Heave
An upward swelling of level ground caused by excess moisture.

Held Plate
The top horizontal part of a stud partition wall.

Helical
Spiral shaped.

Herringbone
Zigzag pattern of brickwork.

Hip Tile
Roof tile shaped to cover hip of roof.

Hoarding
Temporary protection or security fencing.

Hoggin
A fine ballast, usually clay based, used to form a sub-base for paving.

Hollow Wall
A cavity wall - the continuous gap between the inner and outer brickwork usually 50mm in width.

Hone
To sharpen a tool.

Horns
Extended ends of door or window stiles which protect the corners from damage while in storage.

Housing
A narrow channel which is cut across the general direction of wood grain to form part of a joint.