Free U-value calculators - Revision history

Designing Buildings at 10:03, 2 March 2023

2023-03-02T10:03:28Z

← Older revision		Revision as of 10:03, 2 March 2023
Line 1:		Line 1:
−	[[File:U-~~value colours header~~.jpg]]	+	[[File:U-value_colours_header.jpg\|link=File:U-value_colours_header.jpg]]
		+
		+	= Introduction =
		+
		+	U-values (sometimes referred to as heat transfer coefficients or thermal transmittances) are a measure of how effective the elements of a building's fabric are as insulators. That is, the degree to which they prevent heat from transmitting between the inside and the outside of a building. The lower the U-value of an element of a building's fabric, the more slowly heat is able to transmit through it, and so the better it performs as an insulator.

	It is important to understand the physics, mathematics, practicality and impact of U-values before moving onto the calculation of U-values. However there are an increasing number of software packages that include U-value calculations within them along with other functions and many simple online U-value calculators.		It is important to understand the physics, mathematics, practicality and impact of U-values before moving onto the calculation of U-values. However there are an increasing number of software packages that include U-value calculations within them along with other functions and many simple online U-value calculators.

−	There is an article on Designing Buildings ~~called~~ U-values and a page called Thermal bridging in buildings both of which will give some ~~back ground~~ to the subject along with a number of related articles on Designing Buildings.	+	There is an article on Designing Buildings about U-values and a page called Thermal bridging in buildings both of which will give some background to the subject along with a number of other related articles on Designing Buildings.
−		+
−	~~= Introduction =~~	+

	It is important to understand that U-value calculations can vary dramatically as a result of the way the are calculated and the factors that are considered it is therefore important to understand concepts in order to assess the accuracy of any calculators that are used.		It is important to understand that U-value calculations can vary dramatically as a result of the way the are calculated and the factors that are considered it is therefore important to understand concepts in order to assess the accuracy of any calculators that are used.

−	Whilst Designing Buildings does not endorse any of the following and suggests the users seek professional help or guidance if they are unclear on any points, ~~here~~ is a list of free or minimally priced U-value calculators ~~that we have come across~~. They are divided into sections as these may influence some of the factors that are considered~~, feel free to add some more you know of accordingly to the sections~~.	+	Whilst Designing Buildings does not endorse any of the following and suggests the users seek professional help or guidance if they are unclear on any detailed points, below is a list of free or minimally priced U-value calculators. They are divided into sections as these may influence some of the factors that are considered.

	= U-value calculators developed by consultants =		= U-value calculators developed by consultants =

−	[https://www.elmhurstenergy.co.uk/u-value-calculator/ https://www.elmhurstenergy.co.uk/u-value-calculator/]	+	* [https://www.elmhurstenergy.co.uk/u-value-calculator/ https://www.elmhurstenergy.co.uk/u-value-calculator/]
−		+	* [https://www.ikonografik.co.uk/free-area-weighted-u-value-calculator/ https://www.ikonografik.co.uk/free-area-weighted-u-value-calculator/]
−	[https://www.ikonografik.co.uk/free-area-weighted-u-value-calculator/ https://www.ikonografik.co.uk/free-area-weighted-u-value-calculator/]	+	* [https://jpatechnical.com/products/ https://jpatechnical.com/products/]
−		+	* [https://www.ths-concepts.co.uk/how-to-calculate-u-values/ https://www.ths-concepts.co.uk/how-to-calculate-u-values/]
−	[https://jpatechnical.com/products/ https://jpatechnical.com/products/]	+
−		+
−	[https://www.ths-concepts.co.uk/how-to-calculate-u-values/ https://www.ths-concepts.co.uk/how-to-calculate-u-values/]	+

	= U-value calculators developed by other organisations =		= U-value calculators developed by other organisations =

−	[https://www.ubakus.de/u-wert-rechner/ https://www.ubakus.de/u-wert-rechner/]?	+	* [https://www.ubakus.de/u-wert-rechner/ https://www.ubakus.de/u-wert-rechner/]?
−		+	* [https://greenbuildingcalculator.uk https://greenbuildingcalculator.uk]
−	[https://greenbuildingcalculator.uk https://greenbuildingcalculator.uk]	+	* [http://www.energiberakning.se/U_value/U_value.aspx http://www.energiberakning.se/U_value/U_value.aspx]
−		+	* [https://www.changeplan.co.uk/u_value_calculator.php https://www.changeplan.co.uk/u_value_calculator.php]
−	[http://www.energiberakning.se/U_value/U_value.aspx http://www.energiberakning.se/U_value/U_value.aspx]	+	* [https://www.yourspreadsheets.co.uk/u-value-calculator-to-bs-en-iso-6946.html https://www.yourspreadsheets.co.uk/u-value-calculator-to-bs-en-iso-6946.html]
−		+
−	[https://www.changeplan.co.uk/u_value_calculator.php https://www.changeplan.co.uk/u_value_calculator.php]	+
−		+
−	[https://www.yourspreadsheets.co.uk/u-value-calculator-to-bs-en-iso-6946.html https://www.yourspreadsheets.co.uk/u-value-calculator-to-bs-en-iso-6946.html]	+

	= U-value calculators developed by product manufacturers =		= U-value calculators developed by product manufacturers =

−	[https://insulation-uk.com/technical-services/tools/online-u-value-calculator https://insulation-uk.com/technical-services/tools/online-u-value-calculator]	+	* [https://insulation-uk.com/technical-services/tools/online-u-value-calculator https://insulation-uk.com/technical-services/tools/online-u-value-calculator]
−		+	* [https://bim.rockwool.co.uk/u_value/ https://bim.rockwool.co.uk/u_value/]
−	[https://bim.rockwool.co.uk/u_value/ https://bim.rockwool.co.uk/u_value/]	+	* [https://uvaluecalculator.ecotherm.co.uk/calculator/ https://uvaluecalculator.ecotherm.co.uk/calculator/]
−		+	* [https://www.knaufinsulation.co.uk/uvalue-calculator https://www.knaufinsulation.co.uk/uvalue-calculator]
−	[https://uvaluecalculator.ecotherm.co.uk/calculator/ https://uvaluecalculator.ecotherm.co.uk/calculator/]	+	*
−		+	* [http://bguvalue.techlit.co.uk/ http://bguvalue.techlit.co.uk]
−	[https://www.knaufinsulation.co.uk/uvalue-calculator https://www.knaufinsulation.co.uk/uvalue-calculator]~~<br />~~	+	*
−	~~<br />~~	+	* [https://k.systems/ewi-tools/u-value-calculator/ https://k.systems/ewi-tools/u-value-calculator/]
−	[http://bguvalue.techlit.co.uk/ http://bguvalue.techlit.co.uk]~~<br />~~	+	*
−	~~<br />~~	+	* [https://u-valuecalculator.com/gb/ https://u-valuecalculator.com/gb/]
−	[https://k.systems/ewi-tools/u-value-calculator/ https://k.systems/ewi-tools/u-value-calculator/]~~<br />~~	+	*
−	~~<br />~~	+	* [https://www.superglassuvalue.co.uk/calculator https://www.superglassuvalue.co.uk/calculator]
−	[https://u-valuecalculator.com/gb/ https://u-valuecalculator.com/gb/]~~<br />~~	+	* [https://www.swisspacer.com/en/caluwin https://www.swisspacer.com/en/caluwin]
−	~~<br />~~	+
−	[https://www.superglassuvalue.co.uk/calculator https://www.superglassuvalue.co.uk/calculator]	+
−		+
−	[https://www.swisspacer.com/en/caluwin https://www.swisspacer.com/en/caluwin]	+

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

−	* Air tightness in buildings.
−	* Building performance.
−	* Cavity wall insulation.
−	* Conduction.
	* Conventions for calculating linear thermal transmittance and temperature factors.		* Conventions for calculating linear thermal transmittance and temperature factors.
	* Conventions for U-value calculations (BR443 2e 2019).		* Conventions for U-value calculations (BR443 2e 2019).
−	* Double glazing v triple glazing.
	* Emissivity.		* Emissivity.
	* g-value.		* g-value.
Line 73:		Line 59:
	* Thermal admittance.		* Thermal admittance.
	* Thermal bridge.		* Thermal bridge.
−	* Thermal mass.
	* Thermal resistance.		* Thermal resistance.
	* U-value conventions in practice: Worked examples using BR 443.		* U-value conventions in practice: Worked examples using BR 443.
Line 79:		Line 64:
	* What do design professionals need to know about U-value calculation conventions?		* What do design professionals need to know about U-value calculation conventions?

−	= ~~Other external~~ references =	+	= External references =

	* [https://www.designingbuildings.co.uk/wiki/Planning Planning] Portal: [http://www.planningportal.gov.uk/buildingregulations/approveddocuments/partl/approved Approved Document L (Conservation of fuel and power)].		* [https://www.designingbuildings.co.uk/wiki/Planning Planning] Portal: [http://www.planningportal.gov.uk/buildingregulations/approveddocuments/partl/approved Approved Document L (Conservation of fuel and power)].

Editor at 10:23, 13 February 2023

2023-02-13T10:23:26Z

← Older revision		Revision as of 10:23, 13 February 2023
Line 1:		Line 1:
		+	[[File:U-value colours header.jpg]]
		+
	It is important to understand the physics, mathematics, practicality and impact of U-values before moving onto the calculation of U-values. However there are an increasing number of software packages that include U-value calculations within them along with other functions and many simple online U-value calculators.		It is important to understand the physics, mathematics, practicality and impact of U-values before moving onto the calculation of U-values. However there are an increasing number of software packages that include U-value calculations within them along with other functions and many simple online U-value calculators.

Editor at 14:47, 12 February 2023

2023-02-12T14:47:28Z

← Older revision		Revision as of 14:47, 12 February 2023
Line 53:		Line 53:
	= Related articles on Designing Buildings =		= Related articles on Designing Buildings =

−	Air tightness in buildings.	+	* Air tightness in buildings.
−		+	* Building performance.
−	Building performance.	+	* Cavity wall insulation.
−		+	* Conduction.
−	Cavity wall insulation.	+	* Conventions for calculating linear thermal transmittance and temperature factors.
−		+	* Conventions for U-value calculations (BR443 2e 2019).
−	Conduction.	+	* Double glazing v triple glazing.
−		+	* Emissivity.
−	Conventions for calculating linear thermal transmittance and temperature factors.	+	* g-value.
−		+	* k-value.
−	Conventions for U-value calculations (BR443 2e 2019).	+	* Heat loss.
−		+	* Heat transfer.
−	Double glazing v triple glazing.	+	* Insulation.
−		+	* Limiting fabric parameters.
−	Emissivity.	+	* R-value.
−		+	* Standard Assessment Procedure SAP.
−	g-value.	+	* Thermal admittance.
−		+	* Thermal bridge.
−	k-value.	+	* Thermal mass.
−		+	* Thermal resistance.
−	Heat loss.	+	* U-value conventions in practice: Worked examples using BR 443.
−		+	* U-What?
−	Heat transfer.	+	* What do design professionals need to know about U-value calculation conventions?
−		+
−	Insulation.	+
−		+
−	Limiting fabric parameters.	+
−		+
−	R-value.	+
−		+
−	Standard Assessment Procedure SAP.	+
−		+
−	Thermal admittance.	+
−		+
−	Thermal bridge.	+
−		+
−	Thermal mass.	+
−		+
−	Thermal resistance.	+
−		+
−	U-value conventions in practice: Worked examples using BR 443.	+
−		+
−	U-What?	+
−		+
−	What do design professionals need to know about U-value calculation conventions?	+

	= Other external references =		= Other external references =

Editor at 14:47, 12 February 2023

2023-02-12T14:47:02Z

← Older revision		Revision as of 14:47, 12 February 2023
Line 1:		Line 1:
−	It is important to understand the physics, mathematics, practicality and impact of U-values before moving onto the calculation of U-values.	+	It is important to understand the physics, mathematics, practicality and impact of U-values before moving onto the calculation of U-values. However there are an increasing number of software packages that include U-value calculations within them along with other functions and many simple online U-value calculators.

	There is an article on Designing Buildings called U-values and a page called Thermal bridging in buildings both of which will give some back ground to the subject along with a number of related articles on Designing Buildings.		There is an article on Designing Buildings called U-values and a page called Thermal bridging in buildings both of which will give some back ground to the subject along with a number of related articles on Designing Buildings.
Line 7:		Line 7:
	It is important to understand that U-value calculations can vary dramatically as a result of the way the are calculated and the factors that are considered it is therefore important to understand concepts in order to assess the accuracy of any calculators that are used.		It is important to understand that U-value calculations can vary dramatically as a result of the way the are calculated and the factors that are considered it is therefore important to understand concepts in order to assess the accuracy of any calculators that are used.

−	Whilst Designing Buildings does not endorse any of the following and suggests the ~~user seeks~~ professional help or guidance if they are unclear on any points, here is a list of free u-value calculators that we have come across.	+	Whilst Designing Buildings does not endorse any of the following and suggests the users seek professional help or guidance if they are unclear on any points, here is a list of free or minimally priced U-value calculators that we have come across. They are divided into sections as these may influence some of the factors that are considered, feel free to add some more you know of accordingly to the sections.
−		+
−	They are divided into sections as these may influence some of the factors that are considered, feel free to add some more you know of accordingly to the sections.	+

	= U-value calculators developed by consultants =		= U-value calculators developed by consultants =
Line 24:		Line 22:

	[https://www.ubakus.de/u-wert-rechner/ https://www.ubakus.de/u-wert-rechner/]?		[https://www.ubakus.de/u-wert-rechner/ https://www.ubakus.de/u-wert-rechner/]?
		+
		+	[https://greenbuildingcalculator.uk https://greenbuildingcalculator.uk]

	[http://www.energiberakning.se/U_value/U_value.aspx http://www.energiberakning.se/U_value/U_value.aspx]		[http://www.energiberakning.se/U_value/U_value.aspx http://www.energiberakning.se/U_value/U_value.aspx]
Line 51:		Line 51:
	[https://www.swisspacer.com/en/caluwin https://www.swisspacer.com/en/caluwin]		[https://www.swisspacer.com/en/caluwin https://www.swisspacer.com/en/caluwin]

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

	Air tightness in buildings.		Air tightness in buildings.
Line 102:		Line 102:

	* [https://www.designingbuildings.co.uk/wiki/Planning Planning] Portal: [http://www.planningportal.gov.uk/buildingregulations/approveddocuments/partl/approved Approved Document L (Conservation of fuel and power)].		* [https://www.designingbuildings.co.uk/wiki/Planning Planning] Portal: [http://www.planningportal.gov.uk/buildingregulations/approveddocuments/partl/approved Approved Document L (Conservation of fuel and power)].
−	* BRE: [http://www.brebookshop.com/details.jsp?id=190608 Conventions for U-value calculations] (2006 edition).
−	* [http://projects.bre.co.uk/uvalues/ BRE U-value calculator].
	* [http://www.ncm.bre.co.uk/ National Calculation Methodology website].		* [http://www.ncm.bre.co.uk/ National Calculation Methodology website].
	* [http://www.bre.co.uk/sap2009/ Standard Assessment Procedure].		* [http://www.bre.co.uk/sap2009/ Standard Assessment Procedure].

	[[Category:DCN_Commentary]] [[Category:DCN_Guidance]] [[Category:DCN_Research,_Development_and_Innovation]] [[Category:DCN_Software]] [[Category:DCN_Specification]] [[Category:DCN_Template]] [[Category:Standards_/_measurements]] [[Category:Sustainability]]		[[Category:DCN_Commentary]] [[Category:DCN_Guidance]] [[Category:DCN_Research,_Development_and_Innovation]] [[Category:DCN_Software]] [[Category:DCN_Specification]] [[Category:DCN_Template]] [[Category:Standards_/_measurements]] [[Category:Sustainability]]

Editor at 14:42, 12 February 2023

2023-02-12T14:42:46Z

← Older revision		Revision as of 14:42, 12 February 2023
Line 1:		Line 1:
−	It is important to understand the physics, mathematics, practicality and ~~imapct~~ of U-values before moving onto the calculation of U values. There is an article on Designing Buildings called U-values and a page called Thermal bridging in buildings both of which will give some back ground to the subject along with a number of related articles on Designing Buildings	+	It is important to understand the physics, mathematics, practicality and impact of U-values before moving onto the calculation of U-values.
		+
		+	There is an article on Designing Buildings called U-values and a page called Thermal bridging in buildings both of which will give some back ground to the subject along with a number of related articles on Designing Buildings.
		+
		+	= Introduction =
		+
		+	It is important to understand that U-value calculations can vary dramatically as a result of the way the are calculated and the factors that are considered it is therefore important to understand concepts in order to assess the accuracy of any calculators that are used.
		+
		+	Whilst Designing Buildings does not endorse any of the following and suggests the user seeks professional help or guidance if they are unclear on any points, here is a list of free u-value calculators that we have come across.
		+
		+	They are divided into sections as these may influence some of the factors that are considered, feel free to add some more you know of accordingly to the sections.
		+
		+	= U-value calculators developed by consultants =
		+
		+	[https://www.elmhurstenergy.co.uk/u-value-calculator/ https://www.elmhurstenergy.co.uk/u-value-calculator/]
		+
		+	[https://www.ikonografik.co.uk/free-area-weighted-u-value-calculator/ https://www.ikonografik.co.uk/free-area-weighted-u-value-calculator/]
		+
		+	[https://jpatechnical.com/products/ https://jpatechnical.com/products/]
		+
		+	[https://www.ths-concepts.co.uk/how-to-calculate-u-values/ https://www.ths-concepts.co.uk/how-to-calculate-u-values/]
		+
		+	= U-value calculators developed by other organisations =
		+
		+	[https://www.ubakus.de/u-wert-rechner/ https://www.ubakus.de/u-wert-rechner/]?
		+
		+	[http://www.energiberakning.se/U_value/U_value.aspx http://www.energiberakning.se/U_value/U_value.aspx]
		+
		+	[https://www.changeplan.co.uk/u_value_calculator.php https://www.changeplan.co.uk/u_value_calculator.php]
		+
		+	[https://www.yourspreadsheets.co.uk/u-value-calculator-to-bs-en-iso-6946.html https://www.yourspreadsheets.co.uk/u-value-calculator-to-bs-en-iso-6946.html]
		+
		+	= U-value calculators developed by product manufacturers =
		+
		+	[https://insulation-uk.com/technical-services/tools/online-u-value-calculator https://insulation-uk.com/technical-services/tools/online-u-value-calculator]
		+
		+	[https://bim.rockwool.co.uk/u_value/ https://bim.rockwool.co.uk/u_value/]
		+
		+	[https://uvaluecalculator.ecotherm.co.uk/calculator/ https://uvaluecalculator.ecotherm.co.uk/calculator/]
		+
		+	[https://www.knaufinsulation.co.uk/uvalue-calculator https://www.knaufinsulation.co.uk/uvalue-calculator]<br />
		+	<br />
		+	[http://bguvalue.techlit.co.uk/ http://bguvalue.techlit.co.uk]<br />
		+	<br />
		+	[https://k.systems/ewi-tools/u-value-calculator/ https://k.systems/ewi-tools/u-value-calculator/]<br />
		+	<br />
		+	[https://u-valuecalculator.com/gb/ https://u-valuecalculator.com/gb/]<br />
		+	<br />
		+	[https://www.superglassuvalue.co.uk/calculator https://www.superglassuvalue.co.uk/calculator]
		+
		+	[https://www.swisspacer.com/en/caluwin https://www.swisspacer.com/en/caluwin]
		+
		+	Related articles on Designing Buildings
		+
		+	Air tightness in buildings.
		+
		+	Building performance.
		+
		+	Cavity wall insulation.
		+
		+	Conduction.
		+
		+	Conventions for calculating linear thermal transmittance and temperature factors.
		+
		+	Conventions for U-value calculations (BR443 2e 2019).
		+
		+	Double glazing v triple glazing.
		+
		+	Emissivity.
		+
		+	g-value.
		+
		+	k-value.
		+
		+	Heat loss.
		+
		+	Heat transfer.
		+
		+	Insulation.
		+
		+	Limiting fabric parameters.
		+
		+	R-value.
		+
		+	Standard Assessment Procedure SAP.
		+
		+	Thermal admittance.
		+
		+	Thermal bridge.
		+
		+	Thermal mass.
		+
		+	Thermal resistance.
		+
		+	U-value conventions in practice: Worked examples using BR 443.
		+
		+	U-What?
		+
		+	What do design professionals need to know about U-value calculation conventions?
		+
		+	= Other external references =
		+
		+	* [https://www.designingbuildings.co.uk/wiki/Planning Planning] Portal: [http://www.planningportal.gov.uk/buildingregulations/approveddocuments/partl/approved Approved Document L (Conservation of fuel and power)].
		+	* BRE: [http://www.brebookshop.com/details.jsp?id=190608 Conventions for U-value calculations] (2006 edition).
		+	* [http://projects.bre.co.uk/uvalues/ BRE U-value calculator].
		+	* [http://www.ncm.bre.co.uk/ National Calculation Methodology website].
		+	* [http://www.bre.co.uk/sap2009/ Standard Assessment Procedure].
		+
		+	[[Category:DCN_Commentary]] [[Category:DCN_Guidance]] [[Category:DCN_Research,_Development_and_Innovation]] [[Category:DCN_Software]] [[Category:DCN_Specification]] [[Category:DCN_Template]] [[Category:Standards_/_measurements]] [[Category:Sustainability]]

Editor: Created page with "It is important to understand the physics, mathematics, practicality and imapct of U-values before moving onto the calculation of U values. There is an article on Designing Build..."

2023-02-12T14:28:54Z

Created page with "It is important to understand the physics, mathematics, practicality and imapct of U-values before moving onto the calculation of U values. There is an article on Designing Build..."

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It is important to understand the physics, mathematics, practicality and imapct of U-values before moving onto the calculation of U values. There is an article on Designing Buildings called U-values and a page called Thermal bridging in buildings both of which will give some back ground to the subject along with a number of related articles on Designing Buildings