Secondary glazing - Revision history

Editor at 17:24, 17 March 2021

2021-03-17T17:24:19Z

← Older revision		Revision as of 17:24, 17 March 2021
Line 50:		Line 50:
	* Glazing.		* Glazing.
	* Heat transfer.		* Heat transfer.
		+	* Large rooflights.
	* Preventing overheating.		* Preventing overheating.
	* Security glazing.		* Security glazing.

Designing Buildings at 08:49, 24 November 2020

2020-11-24T08:49:26Z

← Older revision		Revision as of 08:49, 24 November 2020
Line 56:		Line 56:
	* Window energy rating.		* Window energy rating.

−	[[Category:~~Construction_techniques~~]] [[Category:~~Products_/_components~~]] [[Category:DCN_Product_Knowledge]]	+	[[Category:DCN_Definition]] [[Category:DCN_Guidance]] [[Category:DCN_Product_Knowledge]] [[Category:Construction_techniques]] [[Category:Products_/_components]]

Designing Buildings at 10:55, 30 January 2020

2020-01-30T10:55:49Z

← Older revision		Revision as of 10:55, 30 January 2020
Line 52:		Line 52:
	* Preventing overheating.		* Preventing overheating.
	* Security glazing.		* Security glazing.
		+	* Triple glazing.
	* Window.		* Window.
	* Window energy rating.		* Window energy rating.

−	[[Category:Construction_techniques]] [[Category:Products_/_components]]	+	[[Category:Construction_techniques]] [[Category:Products_/_components]] [[Category:DCN_Product_Knowledge]]

Designing Buildings at 08:34, 26 January 2020

2020-01-26T08:34:44Z

← Older revision		Revision as of 08:34, 26 January 2020
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	{\|		{\|
−	\|[[File:Secondary_glazing_1.JPG\|link=File:Secondary_glazing_1.JPG]]	+	\| [[File:Secondary_glazing_1.JPG\|link=File:Secondary_glazing_1.JPG]]
−	\|[[File:Secondary_glazing_2.JPG\|link=File:Secondary_glazing_2.JPG]]	+	\| [[File:Secondary_glazing_2.JPG\|link=File:Secondary_glazing_2.JPG]]
	\|-		\|-
−	\|Side hung single pane	+	\| Side hung single pane
−	\|Side hung, behind sash window	+	\| Side hung, behind sash window
	\|-		\|-
−	\|[[File:Secondary_glazing_vertical_slider_1.JPG\|link=File:Secondary_glazing_vertical_slider_1.JPG]]	+	\| [[File:Secondary_glazing_vertical_slider_1.JPG\|link=File:Secondary_glazing_vertical_slider_1.JPG]]
−	\|[[File:Secondary_glazing_vertical_slider_2.JPG\|link=File:Secondary_glazing_vertical_slider_2.JPG]]	+	\| [[File:Secondary_glazing_vertical_slider_2.JPG\|link=File:Secondary_glazing_vertical_slider_2.JPG]]
	\|-		\|-
−	\|Vertical slider aligned with sash window	+	\| Vertical slider aligned with sash window
−	\|Vertical slider aligned with sash window	+	\| Vertical slider aligned with sash window
	\|}		\|}

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	Compared to double glazing, secondary glazing can be cheaper and can be done as a DIY job rather than having to rely on a fitting company. However, it is thought that double glazing is about twice as effective in terms of heat retention.		Compared to double glazing, secondary glazing can be cheaper and can be done as a DIY job rather than having to rely on a fitting company. However, it is thought that double glazing is about twice as effective in terms of heat retention.

−	~~= Find out more =~~	+	See also: Double glazing v triple glazing.

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

	* Building fabric.		* Building fabric.
Line 45:		Line 45:
	* Domestic windows.		* Domestic windows.
	* Double glazing.		* Double glazing.
		+	* Double glazing v triple glazing.
	* Emissivity.		* Emissivity.
	* Glass.		* Glass.

Editor at 16:18, 3 August 2017

2017-08-03T16:18:35Z

← Older revision		Revision as of 16:18, 3 August 2017
Line 42:		Line 42:

	* Building fabric.		* Building fabric.
		+	* Choosing the correct glazed facade heating system.
	* Domestic windows.		* Domestic windows.
	* Double glazing.		* Double glazing.

Editor at 11:56, 27 June 2017

2017-06-27T11:56:51Z

← Older revision		Revision as of 11:56, 27 June 2017
Line 1:		Line 1:
	{\|		{\|
−	\|[[File:~~Secondary glazing 1~~.JPG]]	+	\|[[File:Secondary_glazing_1.JPG\|link=File:Secondary_glazing_1.JPG]]
−	\|[[File:~~Secondary glazing 2~~.JPG]]	+	\|[[File:Secondary_glazing_2.JPG\|link=File:Secondary_glazing_2.JPG]]
	\|-		\|-
	\|Side hung single pane		\|Side hung single pane
	\|Side hung, behind sash window		\|Side hung, behind sash window
	\|-		\|-
−	\|[[File:~~Secondary glazing vertical slider 1~~.JPG]]	+	\|[[File:Secondary_glazing_vertical_slider_1.JPG\|link=File:Secondary_glazing_vertical_slider_1.JPG]]
−	\|[[File:~~Secondary glazing vertical slider 2~~.JPG]]	+	\|[[File:Secondary_glazing_vertical_slider_2.JPG\|link=File:Secondary_glazing_vertical_slider_2.JPG]]
	\|-		\|-
	\|Vertical slider aligned with sash window		\|Vertical slider aligned with sash window
Line 43:		Line 43:
	* Building fabric.		* Building fabric.
	* Domestic windows.		* Domestic windows.
		+	* Double glazing.
	* Emissivity.		* Emissivity.
	* Glass.		* Glass.

Designing Buildings at 09:55, 26 June 2017

2017-06-26T09:55:06Z

← Older revision		Revision as of 09:55, 26 June 2017
Line 1:		Line 1:
		+	{\|
		+	\|[[File:Secondary glazing 1.JPG]]
		+	\|[[File:Secondary glazing 2.JPG]]
		+	\|-
		+	\|Side hung single pane
		+	\|Side hung, behind sash window
		+	\|-
		+	\|[[File:Secondary glazing vertical slider 1.JPG]]
		+	\|[[File:Secondary glazing vertical slider 2.JPG]]
		+	\|-
		+	\|Vertical slider aligned with sash window
		+	\|Vertical slider aligned with sash window
		+	\|}
		+
	Secondary glazing involves the installation of an additional pane of glass and frame to existing windows. This can be used as an alternative to double glazing which involves the removal and replacement of existing windows. It can be used to improve sound insulation and to reduce heat loss and draughts through windows.		Secondary glazing involves the installation of an additional pane of glass and frame to existing windows. This can be used as an alternative to double glazing which involves the removal and replacement of existing windows. It can be used to improve sound insulation and to reduce heat loss and draughts through windows.

Designing Buildings at 09:39, 26 June 2017

2017-06-26T09:39:32Z

← Older revision		Revision as of 09:39, 26 June 2017
Line 1:		Line 1:
−	Secondary glazing involves the installation of an additional pane of glass and frame to existing windows. This is used as an alternative to double glazing which involves the removal and replacement of existing windows. It is used ~~as a cost-effective and efficient means of providing~~ sound insulation and ~~preventing~~ heat loss through windows.	+	Secondary glazing involves the installation of an additional pane of glass and frame to existing windows. This can be used as an alternative to double glazing which involves the removal and replacement of existing windows. It can be used to improve sound insulation and to reduce heat loss and draughts through windows.

−	Secondary glazing is considered most suitable for ~~the following~~:	+	Secondary glazing is considered most suitable for:

	* Listed buildings, period properties and heritage/conservation areas.		* Listed buildings, period properties and heritage/conservation areas.
	* Areas where there is traffic noise (such as hotels on main roads).		* Areas where there is traffic noise (such as hotels on main roads).
−	* ~~Leasehold/rented properties~~ where it may be uneconomical to install double glazing.	+	* Properties where it may be uneconomical to install double glazing.
−	* Properties where ~~the~~ existing external windows ~~cannot be modified~~.	+	* Properties where it would be difficult to modify existing external windows (such as single glazed timber sash windows).
	* Windows that require noise reduction, draught reduction, and so on.		* Windows that require noise reduction, draught reduction, and so on.

−	Secondary glazing can be manufactured in ~~various different~~ styles and colours to match existing windows and blend in with the property~~, which is why they are considered most suitable for listed buildings~~. ~~Secondary glazing~~ can ~~also~~ be ~~curved if required~~, ~~in order~~ to ~~form arched~~ secondary glazing ~~units~~.	+	Secondary glazing can be manufactured in a range of styles, shapes materials and colours to match existing windows and blend in with the property. The method of opening can be designed to suit the existing window, such as a single pane side opening window, a vertical slider, and so on. The frame can generally be aligned with the frame of the existing window to minimise the visual impact of the secondary glazing.

−	~~An advantage of secondary glazing systems is that the units~~ are ~~often~~ pre-drilled, making them easy to ~~install~~ by ~~simply~~ face fixing them directly onto the existing windows or fixing them into the window reveal set back from the existing windows.	+	Units are typically made to measure and pre-drilled, making them easy to instal by face fixing them directly onto the existing windows or fixing them into the window reveal set back from the existing windows.

−	~~The two different design approaches for secondary glazing are fixed and removable. Fixed systems remain in place, whereas removable~~ systems tend to be clear sheets of polycarbonate or acrylic plastic which ~~are fitted with magnetic strips on both the sheet and window frame and~~ can be removed in periods of hot weather.	+	Removable systems can also be installed. These tend to be clear sheets of polycarbonate or acrylic plastic which can be removed in periods of hot weather.

−	The effectiveness of secondary glazing is largely due to the air gap or cavity that is created between the two points of contact – the primary window and the secondary glazing.	+	The effectiveness of secondary glazing is largely due to the air gap or cavity that is created between the two points of contact – the primary window and the secondary glazing. This should be around 70-200 mm in order to optimise sound and heat performance.

−	~~The air gap between~~ the secondary glazing ~~and~~ the existing windows ~~should be around 100-200 mm wide in order to optimise sound and heat performance. It may be~~ the ~~case that only a gap smaller than this can be used~~, in which ~~case, secondary glazing can still be effective with a gap~~ of ~~between 70-100 mm wide~~.	+	It is recommended that a different glass thickness is used for the secondary glazing than for the existing windows, as this creates an effect called the Resonation Factor, in which different wavelengths of sound are blocked by different glass thicknesses resonating at different frequencies.

−	It is ~~recommended that~~ a ~~different glass thickness~~ is ~~used for the secondary glazing than for~~ the existing windows, ~~has this creates an effect called the Resonation Factor~~, ~~whereby various wavelengths of sound are blocked by different glass thicknesses resonating at different frequencies~~.	+	Fitting secondary glazing on the inside of windows is considered an effective and cost-efficient solution for listed and historic buildings; particularly because it is a reversible alteration that is unobtrusive to the existing windows, helping to retain their original character, and also because its installation does not generally require planning permission.

−	Fitting secondary glazing on the inside of windows is considered an effective and cost-efficient solution for listed and historic buildings; particularly because it is a reversible alteration that is unobtrusive to the windows, helping to retain their original character, and also because its installation does not require planning permission.	+	Compared to double glazing, secondary glazing can be cheaper and can be done as a DIY job rather than having to rely on a fitting company. However, it is thought that double glazing is about twice as effective in terms of heat retention.
−		+
−	Compared to double glazing, secondary glazing is cheaper and can be done as a DIY ~~activity~~ rather than having to rely on a fitting company. However, it is thought that double glazing is about twice as effective in terms of heat retention.	+

	= Find out more =		= Find out more =

Editor: Created page with "Secondary glazing involves the installation of an additional pane of glass and frame to existing windows. This is used as an alternative to double glazing which involves the remo..."

2017-06-22T13:19:31Z

Created page with "Secondary glazing involves the installation of an additional pane of glass and frame to existing windows. This is used as an alternative to double glazing which involves the remo..."

New page

Secondary glazing involves the installation of an additional pane of glass and frame to existing windows. This is used as an alternative to double glazing which involves the removal and replacement of existing windows. It is used as a cost-effective and efficient means of providing sound insulation and preventing heat loss through windows.

Secondary glazing is considered most suitable for the following:

* Listed buildings, period properties and heritage/conservation areas.
* Areas where there is traffic noise (such as hotels on main roads).
* Leasehold/rented properties where it may be uneconomical to install double glazing.
* Properties where the existing external windows cannot be modified.
* Windows that require noise reduction, draught reduction, and so on.

Secondary glazing can be manufactured in various different styles and colours to match existing windows and blend in with the property, which is why they are considered most suitable for listed buildings. Secondary glazing can also be curved if required, in order to form arched secondary glazing units.

An advantage of secondary glazing systems is that the units are often pre-drilled, making them easy to install by simply face fixing them directly onto the existing windows or fixing them into the window reveal set back from the existing windows.

The two different design approaches for secondary glazing are fixed and removable. Fixed systems remain in place, whereas removable systems tend to be clear sheets of polycarbonate or acrylic plastic which are fitted with magnetic strips on both the sheet and window frame and can be removed in periods of hot weather.

The effectiveness of secondary glazing is largely due to the air gap or cavity that is created between the two points of contact – the primary window and the secondary glazing.

The air gap between the secondary glazing and the existing windows should be around 100-200 mm wide in order to optimise sound and heat performance. It may be the case that only a gap smaller than this can be used, in which case, secondary glazing can still be effective with a gap of between 70-100 mm wide.

It is recommended that a different glass thickness is used for the secondary glazing than for the existing windows, has this creates an effect called the Resonation Factor, whereby various wavelengths of sound are blocked by different glass thicknesses resonating at different frequencies.

Fitting secondary glazing on the inside of windows is considered an effective and cost-efficient solution for listed and historic buildings; particularly because it is a reversible alteration that is unobtrusive to the windows, helping to retain their original character, and also because its installation does not require planning permission.

Compared to double glazing, secondary glazing is cheaper and can be done as a DIY activity rather than having to rely on a fitting company. However, it is thought that double glazing is about twice as effective in terms of heat retention.

= Find out more =

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

* Building fabric.
* Domestic windows.
* Emissivity.
* Glass.
* Glazing.
* Heat transfer.
* Preventing overheating.
* Security glazing.
* Window.
* Window energy rating.

[[Category:Construction_techniques]] [[Category:Products_/_components]]