Wall ties - Revision history

Editor at 16:37, 10 February 2022

2022-02-10T16:37:35Z

← Older revision		Revision as of 16:37, 10 February 2022
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	Read more about wall tie failure.		Read more about wall tie failure.

−	= Related articles on Designing Buildings ~~Wiki~~ =	+	= Related articles on Designing Buildings =

	* Building damp-free cavity walls.		* Building damp-free cavity walls.
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	* Preventing wall collapse.		* Preventing wall collapse.
	* Rainscreen.		* Rainscreen.
		+	* Strut.
	* Stud.		* Stud.
	* Wall tie failure.		* Wall tie failure.

Designing Buildings at 06:41, 24 September 2020

2020-09-24T06:41:40Z

← Older revision		Revision as of 06:41, 24 September 2020
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	* Planning Portal – [http://www.planningportal.gov.uk/permission/commonprojects/externalwalls/ External walls]		* Planning Portal – [http://www.planningportal.gov.uk/permission/commonprojects/externalwalls/ External walls]

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

Designing Buildings at 09:03, 18 September 2020

2020-09-18T09:03:19Z

← Older revision		Revision as of 09:03, 18 September 2020
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	Read more about wall tie failure.		Read more about wall tie failure.
−
−	~~{{:Keystone_cta_setup}}~~

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

Designing Buildings at 08:44, 17 August 2020

2020-08-17T08:44:56Z

← Older revision		Revision as of 08:44, 17 August 2020
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	Read more about wall tie failure.		Read more about wall tie failure.

−	~~= Find out more =~~	+	{{:Keystone_cta_setup}}

−	=== Related articles on Designing Buildings Wiki ===	+	= Related articles on Designing Buildings Wiki =

	* Building damp-free cavity walls.		* Building damp-free cavity walls.
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	* What are walls made of?		* What are walls made of?

−	=== External references ===	+	= External references =

	* Preservation expert - [http://www.preservationexpert.co.uk/what-are-wall-ties/ What are wall ties?]		* Preservation expert - [http://www.preservationexpert.co.uk/what-are-wall-ties/ What are wall ties?]

Designing Buildings: Reverted edits by 194.81.42.253 (talk) to last revision by Designing Buildings

2019-01-07T10:58:34Z

Reverted edits by 194.81.42.253 (talk) to last revision by Designing Buildings

← Older revision		Revision as of 10:58, 7 January 2019
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	Wall ties are an essential component of a cavity wall, helping to keep the structure safe and stable. Although cavity walls have been constructed for centuries, the use of metal ties to connect the two skins only emerged in the second half of the 19th century, and has been a standard bricklaying practice in the UK since the early-20th century.		Wall ties are an essential component of a cavity wall, helping to keep the structure safe and stable. Although cavity walls have been constructed for centuries, the use of metal ties to connect the two skins only emerged in the second half of the 19th century, and has been a standard bricklaying practice in the UK since the early-20th century.
−
−	~~Is that ninja from fork knife~~

	Wall ties are strips or bars, made of metal that span the cavity and tie the internal and external walls of bricks or blockwork together. The ends of the tie are designed to lock tightly into the mortar. The ties are also designed to prevent water transfer from the outer to the inner leaf of the wall, this often takes the form of a twist in the tie or, if a wire tie, corrugations formed in the wire.		Wall ties are strips or bars, made of metal that span the cavity and tie the internal and external walls of bricks or blockwork together. The ends of the tie are designed to lock tightly into the mortar. The ties are also designed to prevent water transfer from the outer to the inner leaf of the wall, this often takes the form of a twist in the tie or, if a wire tie, corrugations formed in the wire.

194.81.42.253 at 10:04, 7 January 2019

2019-01-07T10:04:14Z

← Older revision		Revision as of 10:04, 7 January 2019
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	Wall ties are an essential component of a cavity wall, helping to keep the structure safe and stable. Although cavity walls have been constructed for centuries, the use of metal ties to connect the two skins only emerged in the second half of the 19th century, and has been a standard bricklaying practice in the UK since the early-20th century.		Wall ties are an essential component of a cavity wall, helping to keep the structure safe and stable. Although cavity walls have been constructed for centuries, the use of metal ties to connect the two skins only emerged in the second half of the 19th century, and has been a standard bricklaying practice in the UK since the early-20th century.
		+
		+	Is that ninja from fork knife

	Wall ties are strips or bars, made of metal that span the cavity and tie the internal and external walls of bricks or blockwork together. The ends of the tie are designed to lock tightly into the mortar. The ties are also designed to prevent water transfer from the outer to the inner leaf of the wall, this often takes the form of a twist in the tie or, if a wire tie, corrugations formed in the wire.		Wall ties are strips or bars, made of metal that span the cavity and tie the internal and external walls of bricks or blockwork together. The ends of the tie are designed to lock tightly into the mortar. The ties are also designed to prevent water transfer from the outer to the inner leaf of the wall, this often takes the form of a twist in the tie or, if a wire tie, corrugations formed in the wire.

Designing Buildings at 07:57, 16 June 2018

2018-06-16T07:57:38Z

← Older revision		Revision as of 07:57, 16 June 2018
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	=== Related articles on Designing Buildings Wiki ===		=== Related articles on Designing Buildings Wiki ===

		+	* Building damp-free cavity walls.
	* Cavity wall.		* Cavity wall.
	* Cavity wall insulation.		* Cavity wall insulation.

Editor at 13:24, 15 November 2017

2017-11-15T13:24:25Z

← Older revision		Revision as of 13:24, 15 November 2017
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	The cavity width and the width of each wall leaf determine the appropriate spacing of the wall ties. These can vary from a 900mm x 450mm staggered pattern to as close as 450mm x 450mm pattern if required in specific parts of a wall, for instance around windows. The density of the wall tie installation must also take into account predicted wind loadings, and must therefore be designed for the specific geographic conditions of the site.		The cavity width and the width of each wall leaf determine the appropriate spacing of the wall ties. These can vary from a 900mm x 450mm staggered pattern to as close as 450mm x 450mm pattern if required in specific parts of a wall, for instance around windows. The density of the wall tie installation must also take into account predicted wind loadings, and must therefore be designed for the specific geographic conditions of the site.

−	As a minimum, a ~~50mm~~ penetration of the ties into each leaf is suggested, although this assumes a standard brick cavity wall, and often other types of wall will require ties to be embedded deeper.	+	As a minimum, a 50 mm penetration of the ties into each leaf is suggested, although this assumes a standard brick cavity wall, and often other types of wall will require ties to be embedded deeper.

	In order to allow the inner and outer leaves of a wall to move differentially as they warm and cool as well as through natural settlement, wall ties need to be flexible. Embedding ties at building corners is generally avoided as stress fractures may be incurred.		In order to allow the inner and outer leaves of a wall to move differentially as they warm and cool as well as through natural settlement, wall ties need to be flexible. Embedding ties at building corners is generally avoided as stress fractures may be incurred.
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	= Materials =		= Materials =

−	Steel, and traditionally iron, are the most common materials used to make wall ties. These eventually become subject to corrosion in damp conditions so are often galvanized to try and prevent this. Older buildings that incorporated mild-steel ‘fishtail’ ties and galvanized wire ‘butterfly’ ties are increasingly at risk of corrosion. Modern practice is to use stainless steel ties to try and limit the risk of exposure to water and chemical attack from cement. Insulation retaining discs made from robust polypropylene are used to apply a firm grip onto each wall tie.	+	Steel, and traditionally iron, are the most common materials used to make wall ties. These eventually become subject to corrosion in damp conditions so are often galvanized to try and prevent this. Older buildings that incorporated mild-steel ‘fishtail’ ties and galvanized wire ‘butterfly’ ties are increasingly at risk of corrosion.
		+
		+	Modern practice is to use stainless steel ties to try and limit the risk of exposure to water and chemical attack from cement. Insulation retaining discs made from robust polypropylene are used to apply a firm grip onto each wall tie.

	= Wall tie failure =		= Wall tie failure =
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	* Wall tie failure.		* Wall tie failure.
	* Wall types.		* Wall types.
		+	* What are walls made of?

	=== External references ===		=== External references ===

Editor at 17:07, 8 September 2017

2017-09-08T17:07:00Z

← Older revision		Revision as of 17:07, 8 September 2017
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	* Preventing wall collapse.		* Preventing wall collapse.
	* Rainscreen.		* Rainscreen.
		+	* Stud.
	* Wall tie failure.		* Wall tie failure.
	* Wall types.		* Wall types.

Designing Buildings at 11:16, 2 November 2016

2016-11-02T11:16:45Z

← Older revision		Revision as of 11:16, 2 November 2016
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	* Masonry.		* Masonry.
	* Preventing wall collapse.		* Preventing wall collapse.
		+	* Rainscreen.
	* Wall tie failure.		* Wall tie failure.
	* Wall types.		* Wall types.