Draughts in buildings - Revision history

Designing Buildings at 08:50, 2 March 2023

2023-03-02T08:50:35Z

← Older revision		Revision as of 08:50, 2 March 2023
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	See [[Air_tightness_in_buildings#Management_and_quality_control_measures\|Management and quality control measures]] for more information.		See [[Air_tightness_in_buildings#Management_and_quality_control_measures\|Management and quality control measures]] for more information.
		+
		+	= Draught risk =
		+
		+	[https://www.bsria.com/uk/product/DXzEjr/thermal_comfort_tg_222023_a15d25e1 Thermal Comfort (TG 22/2023)], written by David Bleicher and Calum Maclean and published by BSRIA in 2023 states: ‘The draught risk is a calculated value that incorporates the air speed, air turbulence and air temperature. Draught risk indicates a percentage of people who would be bothered by draught at the point measured.’

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

Editor at 17:16, 28 December 2021

2021-12-28T17:16:36Z

← Older revision		Revision as of 17:16, 28 December 2021
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	See [[Air_tightness_in_buildings#Management_and_quality_control_measures\|Management and quality control measures]] for more information.		See [[Air_tightness_in_buildings#Management_and_quality_control_measures\|Management and quality control measures]] for more information.

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

	* Accredited construction details ACDs.		* Accredited construction details ACDs.
		+	* Achieving sustainable futures with thermal imaging.
	* Air change rates.		* Air change rates.
	* Air draught.		* Air draught.

Editor at 17:59, 5 October 2020

2020-10-05T17:59:18Z

← Older revision		Revision as of 17:59, 5 October 2020
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	* Draught proofing.		* Draught proofing.
	* Energy audit.		* Energy audit.
		+	* Expanding foam.
	* Floor plenum airtightness.		* Floor plenum airtightness.
	* Indoor air quality.		* Indoor air quality.
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	* The history of non-domestic air tightness testing.		* The history of non-domestic air tightness testing.

−	[[Category:Theory]]	+	[[Category:DCN_Guidance]] [[Category:Theory]]

Designing Buildings at 08:29, 17 June 2020

2020-06-17T08:29:17Z

← Older revision		Revision as of 08:29, 17 June 2020
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	[[File:CFD.jpg\|link=File:CFD.jpg]]		[[File:CFD.jpg\|link=File:CFD.jpg]]

−	See also: Draught proofing and ~~vertical~~ draught.	+	See also: Draught proofing and air draught.

	= Introduction =		= Introduction =
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	* Accredited construction details ACDs.		* Accredited construction details ACDs.
	* Air change rates.		* Air change rates.
		+	* Air draught.
	* Air permeability testing.		* Air permeability testing.
	* Air tightness in buildings		* Air tightness in buildings
Line 105:		Line 106:
	* Thermographic survey.		* Thermographic survey.
	* The history of non-domestic air tightness testing.		* The history of non-domestic air tightness testing.
−	* Vertical draught.

	[[Category:Theory]]		[[Category:Theory]]

Designing Buildings at 08:27, 17 June 2020

2020-06-17T08:27:19Z

← Older revision		Revision as of 08:27, 17 June 2020
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	[[File:CFD.jpg\|link=File:CFD.jpg]]		[[File:CFD.jpg\|link=File:CFD.jpg]]

−	See also: Draught proofing.	+	See also: Draught proofing and vertical draught.

	= Introduction =		= Introduction =
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	* Thermographic survey.		* Thermographic survey.
	* The history of non-domestic air tightness testing.		* The history of non-domestic air tightness testing.
		+	* Vertical draught.

	[[Category:Theory]]		[[Category:Theory]]

Designing Buildings at 12:03, 11 March 2020

2020-03-11T12:03:02Z

← Older revision		Revision as of 12:03, 11 March 2020
Line 101:		Line 101:
	* Indoor air quality.		* Indoor air quality.
	* Indoor air velocity.		* Indoor air velocity.
		+	* Leaks in buildings.
	* Primary air barrier.		* Primary air barrier.
	* Thermographic survey.		* Thermographic survey.

Designing Buildings at 13:40, 26 November 2019

2019-11-26T13:40:50Z

← Older revision		Revision as of 13:40, 26 November 2019
Line 87:		Line 87:
	See [[Air_tightness_in_buildings#Management_and_quality_control_measures\|Management and quality control measures]] for more information.		See [[Air_tightness_in_buildings#Management_and_quality_control_measures\|Management and quality control measures]] for more information.

−	~~= Find out more =~~	+	= Related articles on Designing Buildings Wiki =
−		+
−	=== Related articles on Designing Buildings Wiki ===	+

	* Accredited construction details ACDs.		* Accredited construction details ACDs.
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	* Indoor air quality.		* Indoor air quality.
	* Indoor air velocity.		* Indoor air velocity.
		+	* Primary air barrier.
	* Thermographic survey.		* Thermographic survey.
	* The history of non-domestic air tightness testing.		* The history of non-domestic air tightness testing.

	[[Category:Theory]]		[[Category:Theory]]

Editor at 15:09, 20 April 2018

2018-04-20T15:09:42Z

← Older revision		Revision as of 15:09, 20 April 2018
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	[[File:CFD.jpg\|link=File:CFD.jpg]]		[[File:CFD.jpg\|link=File:CFD.jpg]]
		+
		+	See also: Draught proofing.

	= Introduction =		= Introduction =
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	{\|		{\|
−	\|0 m/s	+	\| 0 m/s
−	\|Stationary air.	+	\| Stationary air.
	\|-		\|-
−	\|0.1 m/s	+	\| 0.1 m/s
−	\|The assumed internal air velocity in some simple heat transfer calculations.	+	\| The assumed internal air velocity in some simple heat transfer calculations.
	\|-		\|-
−	\|0.1 to 0.15 m/s and above	+	\| 0.1 to 0.15 m/s and above
−	\|May be felt as a draught in a cold climate in the winter.	+	\| May be felt as a draught in a cold climate in the winter.
	\|-		\|-
−	\|0.3 m/s and above	+	\| 0.3 m/s and above
−	\|May be felt as a draught in a cold climate in the summer.	+	\| May be felt as a draught in a cold climate in the summer.
	\|-		\|-
−	\|0.8 to 1 m/s and above	+	\| 0.8 to 1 m/s and above
−	\|May be felt as a draught in a hot climate.	+	\| May be felt as a draught in a hot climate.
	\|}		\|}

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	* Cold bridge.		* Cold bridge.
	* Computational fluid dynamics.		* Computational fluid dynamics.
		+	* Draught proofing.
	* Energy audit.		* Energy audit.
	* Floor plenum airtightness.		* Floor plenum airtightness.

Designing Buildings at 10:15, 7 March 2017

2017-03-07T10:15:13Z

← Older revision		Revision as of 10:15, 7 March 2017
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	* Open doors or windows in another part of the building.		* Open doors or windows in another part of the building.
	* Trickle vents in windows.		* Trickle vents in windows.
		+	* Defective or poorly set up building services.

	Draughts can also be experienced where there is a significant change of surface temperature within a building, such as a downdraught felt next to a cold, single-glazed or poor-quality window.		Draughts can also be experienced where there is a significant change of surface temperature within a building, such as a downdraught felt next to a cold, single-glazed or poor-quality window.
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	* Installing or sealing internal doors or other openings to reduce the movement of air within the building.		* Installing or sealing internal doors or other openings to reduce the movement of air within the building.
	* Changing operations so that doors remain closed (such as loading bays or receptions).		* Changing operations so that doors remain closed (such as loading bays or receptions).
		+	* Changing building services installations.

	However, it is important that intended ventilation paths are not blocked. Air bricks, trickle vents, ventilation to under floor cavities and roof spaces, are provided for a reason, removing or blocking them can cause damp, mould and rot, as well as allowing the build-up of contaminants. Some appliances, such as wood-brining stoves must have ventilation provided if they have an output of more than 4.5kw.		However, it is important that intended ventilation paths are not blocked. Air bricks, trickle vents, ventilation to under floor cavities and roof spaces, are provided for a reason, removing or blocking them can cause damp, mould and rot, as well as allowing the build-up of contaminants. Some appliances, such as wood-brining stoves must have ventilation provided if they have an output of more than 4.5kw.

Designing Buildings at 10:14, 7 March 2017

2017-03-07T10:14:01Z

← Older revision		Revision as of 10:14, 7 March 2017
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−	[[File:CFD.jpg]]	+	[[File:CFD.jpg\|link=File:CFD.jpg]]

	= Introduction =		= Introduction =
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	* Closing off open chimneys (although it is important in this case that the chimney remains vented, both at the top and the bottom, and is filled for example with vermiculite, to prevent the accumulation of moisture).		* Closing off open chimneys (although it is important in this case that the chimney remains vented, both at the top and the bottom, and is filled for example with vermiculite, to prevent the accumulation of moisture).
	* Installing or sealing internal doors or other openings to reduce the movement of air within the building.		* Installing or sealing internal doors or other openings to reduce the movement of air within the building.
		+	* Changing operations so that doors remain closed (such as loading bays or receptions).

	However, it is important that intended ventilation paths are not blocked. Air bricks, trickle vents, ventilation to under floor cavities and roof spaces, are provided for a reason, removing or blocking them can cause damp, mould and rot, as well as allowing the build-up of contaminants. Some appliances, such as wood-brining stoves must have ventilation provided if they have an output of more than 4.5kw.		However, it is important that intended ventilation paths are not blocked. Air bricks, trickle vents, ventilation to under floor cavities and roof spaces, are provided for a reason, removing or blocking them can cause damp, mould and rot, as well as allowing the build-up of contaminants. Some appliances, such as wood-brining stoves must have ventilation provided if they have an output of more than 4.5kw.