Harl - Revision history

Designing Buildings at 06:32, 19 May 2022

2022-05-19T06:32:00Z

← Older revision		Revision as of 06:32, 19 May 2022
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	* Ashlar.		* Ashlar.
−	* Dry lining.
	* Finishes.		* Finishes.
	* Grout.		* Grout.
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	* Rendering.		* Rendering.
	* Screed.		* Screed.
		+	* Sneck harl.
	* Stucco.		* Stucco.
	* Vernacular architecture.		* Vernacular architecture.

	[[Category:DCN_Definition]] [[Category:DCN_Guidance]] [[Category:DCN_Product_Knowledge]] [[Category:History]] [[Category:Construction_techniques]] [[Category:Conservation]]		[[Category:DCN_Definition]] [[Category:DCN_Guidance]] [[Category:DCN_Product_Knowledge]] [[Category:History]] [[Category:Construction_techniques]] [[Category:Conservation]]

Designing Buildings at 07:30, 17 May 2022

2022-05-17T07:30:59Z

← Older revision		Revision as of 07:30, 17 May 2022
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	As the harl is mostly lime render it cures chemically rather than by drying, to provide a weather-protective and decorative coating. Once the harl is set it can be lime washed in various colours.		As the harl is mostly lime render it cures chemically rather than by drying, to provide a weather-protective and decorative coating. Once the harl is set it can be lime washed in various colours.

−	= Related articles on Designing Buildings ~~Wiki~~ =	+	[https://www.historicenvironment.scot/archives-and-research/publications/publication/?publicationId=a0138f5b-c173-4e09-818f-a7ac00ad04fb Short Guide: Climate Change Adaptation for Traditional Buildings], published on 10 July 2017 by Historic Scotland, defines harl as a: ‘Scottish form of roughcast in which the mixture of the aggregate (small even-sized pebbles) and binding material (traditionally sand and lime) is cast onto a masonry wall. In traditional harls the aggregate is within the mix (wet dash), in non-traditional 20th century harls the aggregate is dashed on separately (dry dash).’
		+
		+	= Related articles on Designing Buildings =

	* Ashlar.		* Ashlar.
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	* Vernacular architecture.		* Vernacular architecture.

−	[[Category:~~Conservation~~]] [[Category:~~DCN_Definition~~]] [[Category:~~DCN_Guidance~~]] [[Category:~~DCN_Product_Knowledge~~]] [[Category:~~History~~]] [[Category:~~Construction_techniques~~]]	+	[[Category:DCN_Definition]] [[Category:DCN_Guidance]] [[Category:DCN_Product_Knowledge]] [[Category:History]] [[Category:Construction_techniques]] [[Category:Conservation]]

Designing Buildings at 07:25, 27 November 2020

2020-11-27T07:25:54Z

← Older revision		Revision as of 07:25, 27 November 2020
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	* Vernacular architecture.		* Vernacular architecture.

−	[[Category:Conservation]] [[Category:History]] [[Category:Construction_techniques]]	+	[[Category:Conservation]] [[Category:DCN_Definition]] [[Category:DCN_Guidance]] [[Category:DCN_Product_Knowledge]] [[Category:History]] [[Category:Construction_techniques]]

Designing Buildings at 15:33, 28 November 2018

2018-11-28T15:33:21Z

← Older revision		Revision as of 15:33, 28 November 2018
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−	[[File:Harling.jpg]]	+	[[File:Harling.jpg\|link=File:Harling.jpg]]

−	‘Harl’, also known as ‘harling’ (or lime harling), is a technique ~~of providing a weatherproof exterior surface~~ for masonry buildings, traditional to Scotland and Northern Ireland. It is commonly found on Scottish castles as well as more common building types, and was favoured due to its practicality and suitability for the harsh, wet climate.	+	‘Harl’, also known as ‘harling’ (or lime harling), is a technique for weatherproofing the exterior of masonry buildings, traditional to Scotland and Northern Ireland. It is commonly found on Scottish castles as well as more common building types, and was favoured due to its practicality and suitability for the harsh, wet climate.

−	The term ‘harling’ derives from the action of hurling wet mortar at a solid wall ~~construction~~. This is known as a ‘cast-on’ finish, as opposed to a floated base coat (traditional to England), or rough-cast work such as pebbledash. In Ireland, it is commonly known as ‘wet dash’.	+	The term ‘harling’ derives from the action of hurling wet mortar at a solid wall. This is known as a ‘cast-on’ finish, as opposed to a floated base coat (traditional to England), or rough-cast work such as pebbledash. In Ireland, it is commonly known as ‘wet dash’.

−	Harling consists of a slaked lime and coarse aggregate mortar which is thrown onto a stone wall, using a slurry of small pebbles or fine stone chips. By embedding a pigment in this material, the need for repainting can be avoided. A specially-shaped trowel is used to throw and then press the material into the surface. Cast-on coatings tend to provide better resistance to weather as the mortar is better compacted and more uniform throughout ~~the~~ thickness ~~as opposed~~ to trowelled-on coatings.	+	Harling consists of a slaked lime and coarse aggregate mortar which is thrown onto a stone wall, using a slurry of small pebbles or fine stone chips. By embedding a pigment in this material, the need for repainting can be avoided. A specially-shaped trowel is used to throw and then press the material into the surface. Cast-on coatings tend to provide better resistance to weather as the mortar is better compacted and more uniform throughout its thickness compared to trowelled-on coatings.

−	As the harl is mostly lime render it cures chemically rather than drying, to provide a weather-protective and decorative coating. Once the harl is set it can be lime washed in various colours.	+	As the harl is mostly lime render it cures chemically rather than by drying, to provide a weather-protective and decorative coating. Once the harl is set it can be lime washed in various colours.

	= Related articles on Designing Buildings Wiki =		= Related articles on Designing Buildings Wiki =

Editor: Created page with "File:Harling.jpg ‘Harl’, also known as ‘harling’ (or lime harling), is a technique of providing a weatherproof exterior surface for masonry buildings, traditional to..."

2018-11-12T16:34:22Z

Created page with "File:Harling.jpg ‘Harl’, also known as ‘harling’ (or lime harling), is a technique of providing a weatherproof exterior surface for masonry buildings, traditional to..."

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[[File:Harling.jpg]]

‘Harl’, also known as ‘harling’ (or lime harling), is a technique of providing a weatherproof exterior surface for masonry buildings, traditional to Scotland and Northern Ireland. It is commonly found on Scottish castles as well as more common building types, and was favoured due to its practicality and suitability for the harsh, wet climate.

The term ‘harling’ derives from the action of hurling wet mortar at a solid wall construction. This is known as a ‘cast-on’ finish, as opposed to a floated base coat (traditional to England), or rough-cast work such as pebbledash. In Ireland, it is commonly known as ‘wet dash’.

Harling consists of a slaked lime and coarse aggregate mortar which is thrown onto a stone wall, using a slurry of small pebbles or fine stone chips. By embedding a pigment in this material, the need for repainting can be avoided. A specially-shaped trowel is used to throw and then press the material into the surface. Cast-on coatings tend to provide better resistance to weather as the mortar is better compacted and more uniform throughout the thickness as opposed to trowelled-on coatings.

As the harl is mostly lime render it cures chemically rather than drying, to provide a weather-protective and decorative coating. Once the harl is set it can be lime washed in various colours.

= Related articles on Designing Buildings Wiki =

* Ashlar.
* Dry lining.
* Finishes.
* Grout.
* Lime mortar.
* Masonry.
* Parge coat.
* Pebbledash.
* Rendering.
* Screed.
* Stucco.
* Vernacular architecture.

[[Category:Conservation]] [[Category:History]] [[Category:Construction_techniques]]