Vertical riser - Revision history

Editor at 13:19, 12 January 2026

2026-01-12T13:19:32Z

← Older revision		Revision as of 13:19, 12 January 2026
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	NB The term ‘riser’ can also be used in relation to the components of stairs. A stair riser is the vertical face between the back of the tread of one stair and the front of the tread of the stair above. For more information, see Stairs riser.		NB The term ‘riser’ can also be used in relation to the components of stairs. A stair riser is the vertical face between the back of the tread of one stair and the front of the tread of the stair above. For more information, see Stairs riser.

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

	* Building services.		* Building services.

Editor at 14:08, 25 November 2020

2020-11-25T14:08:19Z

← Older revision		Revision as of 14:08, 25 November 2020
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	NB The term ‘riser’ can also be used in relation to the components of stairs. A stair riser is the vertical face between the back of the tread of one stair and the front of the tread of the stair above. For more information, see Stairs riser.		NB The term ‘riser’ can also be used in relation to the components of stairs. A stair riser is the vertical face between the back of the tread of one stair and the front of the tread of the stair above. For more information, see Stairs riser.

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

	* Building services.		* Building services.
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	* Fire collar.		* Fire collar.
	* HVAC.		* HVAC.
		+	* Joined-up thinking is key to building safely.
	* Pipework.		* Pipework.
	* Stairs riser.		* Stairs riser.

Designing Buildings at 12:52, 20 October 2020

2020-10-20T12:52:18Z

← Older revision		Revision as of 12:52, 20 October 2020
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	* Wet riser.		* Wet riser.

−	[[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]]

Editor at 15:58, 24 July 2018

2018-07-24T15:58:44Z

← Older revision		Revision as of 15:58, 24 July 2018
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	* Dry riser.		* Dry riser.
	* Ductwork.		* Ductwork.
		+	* Fire collar.
	* HVAC.		* HVAC.
	* Pipework.		* Pipework.
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	* Wet riser.		* Wet riser.

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

Designing Buildings at 05:15, 18 July 2018

2018-07-18T05:15:48Z

← Older revision		Revision as of 05:15, 18 July 2018
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−	A vertical riser is any component that extends vertically through a building~~. While it encompasses everything that extends vertically~~, including stairs and lifts, the term is ~~more~~ commonly used to refer to ductwork, pipes, conduits and cables.	+	A vertical riser is any component that extends vertically through a building, including for example stairs and lifts, but the term is most commonly used to refer to ductwork, pipes, conduits and cables.

−	~~The term ‘riser’ can also~~ be ~~used with regard~~ to ~~stairs. A stair riser is the vertical face between the back of the tread of one stair~~ and the ~~front~~ of ~~the tread of the stair above. For more information~~, ~~see Stairs riser~~.	+	Vertical ducts should be carefully positioned in order to try and keep pipe and cable run lengths to a minimum, and also, in the case of pipework, to avoid unnecessary bends.

−	The reason for mechanical and electrical pipes and cables being concealed within ductwork is to make an interior more aesthetically pleasing and less cluttered, although in some cases leaving them exposed can be part of the design or to allow easy maintenance access. Vertical ducts should be carefully positioned in order to try and keep pipe and cable run lengths to a minimum, and also, in the case of pipework, to avoid unnecessary bends. Electricity cables often run vertically to sockets and light fittings through surface-mounted conduits.	+	Since vertical risers generally breach floors, they can present a hazard in terms of enabling the spread of fire and so must be appropriately fire protected.
−		+
−	Since vertical risers generally breach floors, they ~~are~~ a ~~fire~~ hazard in terms of enabling spread and so must be appropriately fire protected.	+

	Other types of vertical riser include:		Other types of vertical riser include:

−	* Dry riser: Used to supply water within buildings for fire-fighting purposes. Dry risers do not contain water when they are not being used but are charged with water by fire service pumping appliances when necessary.	+	* Dry riser: Used to supply water within buildings for fire-fighting purposes. Dry risers do not contain water when they are not being used but are charged with water by fire service pumping appliances when necessary. For more information see: Dry riser.
−	* Wet riser: Used to supply water within buildings for fire-fighting purposes. Wet risers are permanently charged with water.	+	* Wet riser: Used to supply water within buildings for fire-fighting purposes. Wet risers are permanently charged with water. For more information see: Wet riser.
		+
		+	NB The term ‘riser’ can also be used in relation to the components of stairs. A stair riser is the vertical face between the back of the tread of one stair and the front of the tread of the stair above. For more information, see Stairs riser.

	= Find out more =		= Find out more =

Editor: Created page with "A vertical riser is any component that extends vertically through a building. While it encompasses everything that extends vertically, including stairs and lifts, the term is mor..."

2018-07-17T11:18:24Z

Created page with "A vertical riser is any component that extends vertically through a building. While it encompasses everything that extends vertically, including stairs and lifts, the term is mor..."

New page

A vertical riser is any component that extends vertically through a building. While it encompasses everything that extends vertically, including stairs and lifts, the term is more commonly used to refer to ductwork, pipes, conduits and cables.

The term ‘riser’ can also be used with regard to stairs. A stair riser is the vertical face between the back of the tread of one stair and the front of the tread of the stair above. For more information, see Stairs riser.

The reason for mechanical and electrical pipes and cables being concealed within ductwork is to make an interior more aesthetically pleasing and less cluttered, although in some cases leaving them exposed can be part of the design or to allow easy maintenance access. Vertical ducts should be carefully positioned in order to try and keep pipe and cable run lengths to a minimum, and also, in the case of pipework, to avoid unnecessary bends. Electricity cables often run vertically to sockets and light fittings through surface-mounted conduits.

Since vertical risers generally breach floors, they are a fire hazard in terms of enabling spread and so must be appropriately fire protected.

Other types of vertical riser include:

* Dry riser: Used to supply water within buildings for fire-fighting purposes. Dry risers do not contain water when they are not being used but are charged with water by fire service pumping appliances when necessary.
* Wet riser: Used to supply water within buildings for fire-fighting purposes. Wet risers are permanently charged with water.

= Find out more =

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

* Building services.
* Dry riser.
* Ductwork.
* HVAC.
* Pipework.
* Stairs riser.
* Types of riser.
* Ventilation.
* Wet riser.

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