skip to main page content :: Town & Regional Planning Home > Glossary Home > H >
Harl \ harling
- (Scottish) a form of roughcast widely used throughout Scotland and the north of England, in
which a mixture of an aggregate
(usually small even-sized pebbles) and a binding material
(traditionally sand and lime,
latterly portland cement)
is dashed, or hurled (harled) on to a
Specially designed curved trowels are normally used but other impliments including brooms have sometimes been employed.
Harling can be distinguished from the more generic term "render"
by the fact that
very basically, you would expect a render to be a smoother finish applied directly by trowel or
In traditional harls the aggregate is in the mix (wet dash)
in non-traditional 20th century
harls the aggregate is dashed on separately (dry dash).
It is generally assumed that this type of
render was designed to withstand severe weather conditions.
They are applied to all constructions,
stone etc. and there are numerous instances
of owners setting out to expose their stonework only to find a predominance of a different material.