Raised floor - Revision history

Designing Buildings at 08:04, 23 September 2020

2020-09-23T08:04:58Z

← Older revision		Revision as of 08:04, 23 September 2020
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	* Underfloor air distribution.		* Underfloor air distribution.

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

Editor at 15:40, 5 May 2020

2020-05-05T15:40:31Z

← Older revision		Revision as of 15:40, 5 May 2020
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	* Metal furring system.		* Metal furring system.
	* Plenum.		* Plenum.
		+	* Rubber flooring.
	* Separating floor.		* Separating floor.
	* Sprung floor.		* Sprung floor.
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	* Underfloor air distribution.		* Underfloor air distribution.

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

Editor at 16:58, 15 January 2020

2020-01-15T16:58:10Z

← Older revision		Revision as of 16:58, 15 January 2020
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	* Acoustic insulation.		* Acoustic insulation.
		+	* Decking.
	* Ductwork.		* Ductwork.
	* Finished floor level.		* Finished floor level.

Designing Buildings at 11:45, 7 November 2019

2019-11-07T11:45:48Z

← Older revision		Revision as of 11:45, 7 November 2019
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−	A raised floor (access floor or raised access floor) is a floor created above a solid floor slab, leaving an open void between the two. This void can be used to distribute building services, such as:	+	A raised floor (access floor, raised access floor or platform floor) is a floor created above a solid floor slab, leaving an open void between the two. This void can be used to distribute building services, such as:

	* Cabling for data and telecoms.		* Cabling for data and telecoms.

Editor at 15:38, 28 May 2019

2019-05-28T15:38:50Z

← Older revision		Revision as of 15:38, 28 May 2019
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	Where floor voids are used as plenums (that is they are used as ducts through which air can be supplied to or extracted from a space to provide ventilation) it may be necessary to specify a tight fit between floor panels or to seal joints between floor panels to prevent pressure loss.		Where floor voids are used as plenums (that is they are used as ducts through which air can be supplied to or extracted from a space to provide ventilation) it may be necessary to specify a tight fit between floor panels or to seal joints between floor panels to prevent pressure loss.

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

	* Acoustic insulation.		* Acoustic insulation.
	* Ductwork.		* Ductwork.
		+	* Finished floor level.
	* Flanking sound.		* Flanking sound.
	* Floating floor.		* Floating floor.

Editor at 12:21, 28 June 2017

2017-06-28T12:21:49Z

← Older revision		Revision as of 12:21, 28 June 2017
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	Typically, floor panels are 600mm x 600mm. They may be formed of a chipboard core, encased with steel, or may be laminated with finishes such as wood or stone. Floor voids can be as little as 20mm deep, and commonly, up to 1,200mm, although greater depths can be achieved by bespoke systems.		Typically, floor panels are 600mm x 600mm. They may be formed of a chipboard core, encased with steel, or may be laminated with finishes such as wood or stone. Floor voids can be as little as 20mm deep, and commonly, up to 1,200mm, although greater depths can be achieved by bespoke systems.

−	For many years, the Property Services Agency Specification MOB PF2 PS/Spu, Platform Floors (Raised Access Floors) Performance Specification, set the standards for raised floors, the last edition of which was published in 1992. This graded raised floors in four structural categories: light, medium, heavy and extra heavy. However, this was superseded in 2001 by BSEN 12825:2001 Raised access floors, which classifies floor systems according to ultimate load, safety factor, deflection under working load and dimensional tolerances.	+	For many years, the Property Services Agency Specification MOB PF2 PS/Spu, Platform Floors (Raised Access Floors) Performance Specification, set the standards for raised floors, the last edition of which was published in 1992. This graded raised floors in four structural categories: light, medium, heavy and extra heavy.

−	Raised floors can create a flanking route for sound to transmit from one space to another under partition walls. Floor finishes and panels with an acoustic construction can be used to reduce the transmission of sound, and the joints between panels can be minimised or sealed. Acoustic insulation can also be introduced below partition walls, or walls can run through the raised floor to the floor slab, although this will reduce future flexibility. Generally, flanking is more likely through ceiling voids as ceiling tiles tend to have less mass than floor panels.	+	However, this was superseded in 2001 by BSEN 12825:2001 Raised access floors, which classifies floor systems according to ultimate load, safety factor, deflection under working load and dimensional tolerances.
		+
		+	Raised floors can create a flanking route for sound to transmit from one space to another under partition walls. Floor finishes and panels with an acoustic construction can be used to reduce the transmission of sound, and the joints between panels can be minimised or sealed.
		+
		+	Acoustic insulation can also be introduced below partition walls, or walls can run through the raised floor to the floor slab, although this will reduce future flexibility. Generally, flanking is more likely through ceiling voids as ceiling tiles tend to have less mass than floor panels.

	Where floor voids are used as plenums (that is they are used as ducts through which air can be supplied to or extracted from a space to provide ventilation) it may be necessary to specify a tight fit between floor panels or to seal joints between floor panels to prevent pressure loss.		Where floor voids are used as plenums (that is they are used as ducts through which air can be supplied to or extracted from a space to provide ventilation) it may be necessary to specify a tight fit between floor panels or to seal joints between floor panels to prevent pressure loss.
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	* Sprung floor.		* Sprung floor.
	* Suspended ceiling.		* Suspended ceiling.
		+	* Types of floor.
	* Underfloor air distribution.		* Underfloor air distribution.

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

Editor at 12:12, 28 June 2017

2017-06-28T12:12:08Z

← Older revision		Revision as of 12:12, 28 June 2017
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	* Cabling for environmental controls, fire detection and suppression and security.		* Cabling for environmental controls, fire detection and suppression and security.

−	Raised floors first emerged in the 1960’s and have become more common with the increasing demand for technology in buildings. They are often found in offices, or in spaces that have a high demand for information and communications infrastructure such as data centres. The raised floor system allows flexibility of layout for building services and, with the inclusion of removable floor panels, allows quick and easy access for reconfiguration and maintenance. It also allow spaces to be reconfigured or refurbished with minimal disruption by the repositioning floor boxes, furniture or partition walls.	+	Raised floors first emerged in the 1960’s and have become more common with the increasing demand for technology in buildings. They are often found in offices, or in spaces that have a high demand for information and communications infrastructure such as data centres.
		+
		+	The raised floor system allows flexibility of layout for building services and, with the inclusion of removable floor panels, allows quick and easy access for reconfiguration and maintenance. It also allow spaces to be reconfigured or refurbished with minimal disruption by the repositioning floor boxes, furniture or partition walls.

	Typically, the components of raised flooring include:		Typically, the components of raised flooring include:
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	For many years, the Property Services Agency Specification MOB PF2 PS/Spu, Platform Floors (Raised Access Floors) Performance Specification, set the standards for raised floors, the last edition of which was published in 1992. This graded raised floors in four structural categories: light, medium, heavy and extra heavy. However, this was superseded in 2001 by BSEN 12825:2001 Raised access floors, which classifies floor systems according to ultimate load, safety factor, deflection under working load and dimensional tolerances.		For many years, the Property Services Agency Specification MOB PF2 PS/Spu, Platform Floors (Raised Access Floors) Performance Specification, set the standards for raised floors, the last edition of which was published in 1992. This graded raised floors in four structural categories: light, medium, heavy and extra heavy. However, this was superseded in 2001 by BSEN 12825:2001 Raised access floors, which classifies floor systems according to ultimate load, safety factor, deflection under working load and dimensional tolerances.

−	Raised floors can create a flanking route for sound to transmit from one space to another under partition walls. Floor finishes and panels with an acoustic construction can be used to reduce the transmission of sound, and the joints between panels can be minimised or sealed. Acoustic insulation can also be introduced below partition walls, or walls can run through the raised floor to the floor slab, although this will reduce future flexibility. Generally flanking is more likely through ceiling voids as ceiling tiles tend to have less mass than floor panels.	+	Raised floors can create a flanking route for sound to transmit from one space to another under partition walls. Floor finishes and panels with an acoustic construction can be used to reduce the transmission of sound, and the joints between panels can be minimised or sealed. Acoustic insulation can also be introduced below partition walls, or walls can run through the raised floor to the floor slab, although this will reduce future flexibility. Generally, flanking is more likely through ceiling voids as ceiling tiles tend to have less mass than floor panels.

	Where floor voids are used as plenums (that is they are used as ducts through which air can be supplied to or extracted from a space to provide ventilation) it may be necessary to specify a tight fit between floor panels or to seal joints between floor panels to prevent pressure loss.		Where floor voids are used as plenums (that is they are used as ducts through which air can be supplied to or extracted from a space to provide ventilation) it may be necessary to specify a tight fit between floor panels or to seal joints between floor panels to prevent pressure loss.

Editor at 15:02, 25 April 2017

2017-04-25T15:02:20Z

← Older revision		Revision as of 15:02, 25 April 2017
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	* Herringbone strut.		* Herringbone strut.
	* Joist.		* Joist.
		+	* Metal furring system.
	* Plenum.		* Plenum.
	* Separating floor.		* Separating floor.

Editor at 00:27, 31 October 2016

2016-10-31T00:27:25Z

← Older revision		Revision as of 00:27, 31 October 2016
Line 32:		Line 32:

	* Acoustic insulation.		* Acoustic insulation.
		+	* Ductwork.
	* Flanking sound.		* Flanking sound.
	* Floating floor.		* Floating floor.

Designing Buildings at 06:51, 2 October 2016

2016-10-02T06:51:21Z

← Older revision		Revision as of 06:51, 2 October 2016
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	* Flooring defects.		* Flooring defects.
	* Herringbone strut.		* Herringbone strut.
		+	* Joist.
	* Plenum.		* Plenum.
	* Separating floor.		* Separating floor.