Limiting fabric standards - Revision history

Designing Buildings at 09:02, 30 September 2020

2020-09-30T09:02:40Z

← Older revision		Revision as of 09:02, 30 September 2020
Line 106:		Line 106:
	NB Approved Document C gives limiting values for individual elements to minimise the risk of condensation.		NB Approved Document C gives limiting values for individual elements to minimise the risk of condensation.

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

	* 2013 changes to the approved documents for part L of the building regulations		* 2013 changes to the approved documents for part L of the building regulations
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	* U-value.		* U-value.

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

	* Approved Document L1A: Conservation of fuel and power in new dwellings, 2013 edition.		* Approved Document L1A: Conservation of fuel and power in new dwellings, 2013 edition.
	* Approved Document L2A: Conservation of fuel and power in new buildings other than dwellings, 2013 edition.		* Approved Document L2A: Conservation of fuel and power in new buildings other than dwellings, 2013 edition.

−	[[Category:~~Regulations~~]] [[Category:~~DCN_Regulation~~]] [[Category:~~Standards_/_measurements~~]] [[Category:DCN_Standard]] [[Category:Sustainability]]	+	[[Category:DCN_Definition]] [[Category:DCN_Guidance]] [[Category:DCN_Regulation]] [[Category:DCN_Standard]] [[Category:Regulations]] [[Category:Standards_/_measurements]] [[Category:Sustainability]]

Designing Buildings at 14:03, 7 February 2018

2018-02-07T14:03:33Z

← Older revision		Revision as of 14:03, 7 February 2018
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	{\|		{\|
−	~~\|width="50%"~~\|Roof	+	\| Roof
−	~~\|width="50%"~~\|0.2 W/(m^2K)	+	\| 0.2 W/(m^2K)
	\|-		\|-
−	\|Wall	+	\| Wall
−	\|0.3 W/(m^2K)	+	\| 0.3 W/(m^2K)
	\|-		\|-
−	\|Floor	+	\| Floor
−	\|0.25 W/(m^2K)	+	\| 0.25 W/(m^2K)
	\|-		\|-
−	\|Party wall	+	\| Party wall
−	\|0.2 W/(m^2K)	+	\| 0.2 W/(m^2K)
	\|-		\|-
−	\|Swimming pool basin	+	\| Swimming pool basin
−	\|0.25 W/(m^2K)	+	\| 0.25 W/(m^2K)
	\|-		\|-
−	\|Windows, roof windows, glazed roof-lights, curtain walling and pedestrian doors	+	\| Windows, roof windows, glazed roof-lights, curtain walling and pedestrian doors
−	\|2.0 W/(m^2K)	+	\| 2.0 W/(m^2K)
	\|-		\|-
−	\|Air permeability	+	\| Air permeability
−	\|10.0 m^3/(h.m^2) at 50 Pa	+	\| 10.0 m^3/(h.m^2) at 50 Pa
	\|}		\|}

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	{\|		{\|
−	~~\|width="50%"~~\|Roof	+	\| Roof
−	~~\|width="50%"~~\|0.25 W/(m^2K)	+	\| 0.25 W/(m^2K)
	\|-		\|-
−	\|Wall	+	\| Wall
−	\|0.35 W/(m^2K)	+	\| 0.35 W/(m^2K)
	\|-		\|-
−	\|Floor	+	\| Floor
−	\|0.25 W/(m^2K)	+	\| 0.25 W/(m^2K)
	\|-		\|-
−	\|Swimming pool basin	+	\| Swimming pool basin
−	\|0.25 W/(m^2K)	+	\| 0.25 W/(m^2K)
	\|-		\|-
−	\|Windows, roof windows, roof-lights, curtain walling and pedestrian doors	+	\| Windows, roof windows, roof-lights, curtain walling and pedestrian doors
−	\|2.2 W/(m^2K)	+	\| 2.2 W/(m^2K)
	\|-		\|-
−	\|Vehicle access and similar large doors	+	\| Vehicle access and similar large doors
−	\|1.5 W/(m^2K)	+	\| 1.5 W/(m^2K)
	\|-		\|-
−	\|High-usage entrance doors	+	\| High-usage entrance doors
−	\|3.5 W/(m^2K)	+	\| 3.5 W/(m^2K)
	\|-		\|-
−	\|Roof ventilators (inc. smoke vents)	+	\| Roof ventilators (inc. smoke vents)
−	\|3.5 W/(m^2K)	+	\| 3.5 W/(m^2K)
	\|-		\|-
−	\|Air permeability	+	\| Air permeability
−	\|10.0 m^3/(h.m^2) at 50 Pa	+	\| 10.0 m^3/(h.m^2) at 50 Pa
	\|}		\|}

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	{\|		{\|
−	~~\|width="33%"~~\|	+	\|
−	~~\|width="33%"~~\|New thermal elements	+
−	~~\|width="33%"~~\|Retained thermal elements	+	\| New thermal elements
		+	\| Retained thermal elements
	\|-		\|-
−	\|Wall	+	\| Wall
−	\|0.28 W/(m^2K)	+	\| 0.28 W/(m^2K)
	\|		\|
		+
	\|-		\|-
−	\|Pitched roof – insulation at ceiling level	+	\| Pitched roof – insulation at ceiling level
−	\|0.16 W/(m^2K)	+	\| 0.16 W/(m^2K)
−	\|0.16 W/(m^2K)	+	\| 0.16 W/(m^2K)
	\|-		\|-
−	\|Pitched roof – insulation at rafter level	+	\| Pitched roof – insulation at rafter level
−	\|0.18 W/(m^2K)	+	\| 0.18 W/(m^2K)
−	\|0.18 W/(m^2K)	+	\| 0.18 W/(m^2K)
	\|-		\|-
−	\|Flat roof or roof with integral insulation	+	\| Flat roof or roof with integral insulation
−	\|0.18 W/(m^2K)	+	\| 0.18 W/(m^2K)
−	\|0.18 W/(m^2K)	+	\| 0.18 W/(m^2K)
	\|-		\|-
−	\|Floors	+	\| Floors
−	\|0.22 W/(m^2K)	+	\| 0.22 W/(m^2K)
−	\|0.25 W/(m^2K)	+	\| 0.25 W/(m^2K)
	\|-		\|-
−	\|Swimming Pool basin	+	\| Swimming Pool basin
−	\|0.25 W/(m^2K)	+	\| 0.25 W/(m^2K)
	\|		\|
		+
	\|-		\|-
−	\|Wall – cavity insulation	+	\| Wall – cavity insulation
	\|		\|
−	\|0.55 W/(m^2K)	+
		+	\| 0.55 W/(m^2K)
	\|-		\|-
−	\|Wall – external or internal insulation	+	\| Wall – external or internal insulation
	\|		\|
−	\|0.30 W/(m^2K)	+
		+	\| 0.30 W/(m^2K)
	\|}		\|}

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

−	* ~~[http://www.planningportal.gov.uk/uploads/br/BR_PDF_AD_L1A_2013.pdf~~ Approved Document L1A: Conservation of fuel and power in new dwellings, 2013 edition].	+	* Approved Document L1A: Conservation of fuel and power in new dwellings, 2013 edition.
−	* ~~[http://www.planningportal.gov.uk/uploads/br/BR_PDF_AD_L2A_2013.pdf~~ Approved Document L2A: Conservation of fuel and power in new buildings other than dwellings, 2013 edition].	+	* Approved Document L2A: Conservation of fuel and power in new buildings other than dwellings, 2013 edition.

−	[[Category:Regulations]] [[Category:Standards_/_measurements]] [[Category:Sustainability]]	+	[[Category:Regulations]] [[Category:DCN_Regulation]] [[Category:Standards_/_measurements]] [[Category:DCN_Standard]] [[Category:Sustainability]]

Designing Buildings: moved Limiting fabric parameters to Limiting fabric standards

2017-03-02T08:17:31Z

moved Limiting fabric parameters to Limiting fabric standards

← Older revision

Revision as of 08:17, 2 March 2017

Designing Buildings at 11:43, 7 November 2016

2016-11-07T11:43:39Z

Show changes

Designing Buildings at 12:04, 21 July 2014

2014-07-21T12:04:56Z

← Older revision		Revision as of 12:04, 21 July 2014
Line 227:		Line 227:

	[[Category:Regulations]]		[[Category:Regulations]]
		+	[[Category:Standards_/_measurements]]
	[[Category:Sustainability]]		[[Category:Sustainability]]

Designing Buildings at 11:51, 21 July 2014

2014-07-21T11:51:57Z

← Older revision		Revision as of 11:51, 21 July 2014
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−	The ~~Building Regulations requires~~ that reasonable provision be made to limit heat gains and losses through the fabric of ~~the building~~. The approved documents to the buildings regulations set out the limiting standards for the properties of the fabric elements of the building.	+	== Introduction ==
		+
		+	The building regulations require that reasonable provision be made to limit heat gains and losses through the fabric of new buildings and works to existing buildings. The approved documents to the buildings regulations set out the limiting standards for the properties of the fabric elements of the building.

	== L1A, new dwellings, 2013 edition ==		== L1A, new dwellings, 2013 edition ==
Line 10:		Line 12:

	\|		\|
−	-0.2 W/(m^2K)	+	0.2 W/(m^2K)

	\|-		\|-
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	\|		\|
−	-0.3 W/(m^2K)	+	0.3 W/(m^2K)

	\|-		\|-
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	\|		\|
−	-0.25 W/(m^2K)	+	0.25 W/(m^2K)

	\|-		\|-
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	\|		\|
−	-0.2 W/(m^2K)	+	0.2 W/(m^2K)

	\|-		\|-
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	\|		\|
−	-0.25 W/(m^2K)	+	0.25 W/(m^2K)

	\|-		\|-
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	\|		\|
−	-2.0 W/(m^2K)	+	2.0 W/(m^2K)

	\|-		\|-
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	\|		\|
−	-10.0 m^3/(h.m^2) at 50 Pa	+	10.0 m^3/(h.m^2) at 50 Pa

	\|}		\|}

−	== L2A, new buildings other than dwellings ~~edition~~, 2013 edition ==	+	== L2A, new buildings other than dwellings, 2013 edition ==

	{\| border="1" cellspacing="0" cellpadding="0"		{\| border="1" cellspacing="0" cellpadding="0"
Line 64:		Line 66:

	\|		\|
−	-0.25 W/(m^2K)	+	0.25 W/(m^2K)

	\|-		\|-
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	\|		\|
−	-0.35 W/(m^2K)	+	0.35 W/(m^2K)

	\|-		\|-
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	\|		\|
−	-0.25 W/(m^2K)	+	0.25 W/(m^2K)

	\|-		\|-
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	\|		\|
−	-0.25 W/(m^2K)	+	0.25 W/(m^2K)

	\|-		\|-
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	\|		\|
−	-2.2 W/(m^2K)	+	2.2 W/(m^2K)

	\|-		\|-
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	\|		\|
−	-1.5 W/(m^2K)	+	1.5 W/(m^2K)

	\|-		\|-
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	\|		\|
−	-3.5 W/(m^2K)	+	3.5 W/(m^2K)

	\|-		\|-
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	\|		\|
−	-3.5 W/(m^2K)	+	3.5 W/(m^2K)

	\|-		\|-
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	\|		\|
−	-10.0 m^3/(h.m^2) at 50 Pa	+	10.0 m^3/(h.m^2) at 50 Pa

	\|}		\|}

−	== L1B and L2B, existing dwellings and existing buildings other than dwellings, 2010 ~~edition~~ ==	+	== L1B and L2B, existing dwellings and existing buildings other than dwellings, 2010 editions ==

	{\| border="1" cellspacing="0" cellpadding="0"		{\| border="1" cellspacing="0" cellpadding="0"
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	\|		\|
−	-0.28 W/(m^2K)	+	0.28 W/(m^2K)

	\|		\|
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	\|		\|
−	-0.16 W/(m^2K)	+	0.16 W/(m^2K)

	\|		\|
−	-0.16 W/(m^2K)	+	0.16 W/(m^2K)

	\|-		\|-
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	\|		\|
−	-0.18 W/(m^2K)	+	0.18 W/(m^2K)

	\|		\|
−	-0.18 W/(m^2K)	+	0.18 W/(m^2K)

	\|-		\|-
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	\|		\|
−	-0.18 W/(m^2K)	+	0.18 W/(m^2K)

	\|		\|
−	-0.18 W/(m^2K)	+	0.18 W/(m^2K)

	\|-		\|-
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	\|		\|
−	-0.22 W/(m^2K)	+	0.22 W/(m^2K)

	\|		\|
−	-0.25 W/(m^2K)	+	0.25 W/(m^2K)

	\|-		\|-
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	\|		\|
−	-0.25 W/(m^2K)-	+	0.25 W/(m^2K)

	\|		\|
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	\|		\|
	\|		\|
−	-0.55 W/(m^2K)	+	0.55 W/(m^2K)

	\|-		\|-
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	\|		\|
	\|		\|
−	-0.30 W/(m^2K)	+	0.30 W/(m^2K)

	\|}		\|}

−	NB Approved Document C gives limiting values for individual elements to minimise the risk of condensation	+	NB Approved Document C gives limiting values for individual elements to minimise the risk of condensation.

	= Find out more =		= Find out more =

Designing Buildings at 11:24, 21 July 2014

2014-07-21T11:24:31Z

Show changes

Designing Buildings at 11:23, 21 July 2014

2014-07-21T11:23:47Z

Show changes

Designing Buildings: Created page with " The Building Regulations requires that reasonable provision be made to limit heat gains and losses through the fabric of the building. The approved documents to the buildings re..."

2014-07-21T11:20:33Z

Created page with " The Building Regulations requires that reasonable provision be made to limit heat gains and losses through the fabric of the building. The approved documents to the buildings re..."

New page

The Building Regulations requires that reasonable provision be made to limit heat gains and losses through the fabric of the building. The approved documents to the buildings regulations set out the limiting standards for the properties of the fabric elements of the building.

== L1A, new dwellings, 2013 edition ==

{| border="1" cellspacing="0" cellpadding="0"
|-
| |
Roof

| |
-0.2 W/(m^2K)

|-
| |
Wall

| |
-0.3 W/(m^2K)

|-
| |
Floor

| |
-0.25 W/(m^2K)

|-
| |
Party wall

| |
-0.2 W/(m^2K)

|-
| |
Swimming pool basin

| |
-0.25 W/(m^2K)

|-
| |
Windows, roof windows, glazed roof-lights, curtain walling and pedestrian doors

| |
-2.0 W/(m^2K)

|-
| |
Air permeability

| |
-10.0 m^3/(h.m^2) at 50 Pa

|}