Mineral wool - Revision history

Designing Buildings at 08:49, 11 August 2022

2022-08-11T08:49:43Z

← Older revision		Revision as of 08:49, 11 August 2022
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	* Acoustic insulation		* Acoustic insulation
−	* Acoustic insulation market
−	* Advice for External Wall Insulation (EWI) systems with a render or brick-slip finish
−	* Aerogel insulation for buildings
−	* BR 135 Fire Performance of external thermal insulation for walls of multi-storey buildings
−	* BREEAM Insulation
	* Cavity wall insulation		* Cavity wall insulation
	* Designing out unintended consequences when applying solid wall insulation FB 79		* Designing out unintended consequences when applying solid wall insulation FB 79
Line 42:		Line 37:
	* Floor insulation		* Floor insulation
	* Insulation for ground floors		* Insulation for ground floors
−	* ~~Loft insulation ruling~~	+	* Mineral.
	* Reducing thermal bridging at junctions when designing and installing solid wall insulation FB 61		* Reducing thermal bridging at junctions when designing and installing solid wall insulation FB 61
	* Roof insulation		* Roof insulation
Line 49:		Line 44:
	* Sound insulation in buildings		* Sound insulation in buildings
	* Specifying insulation for inverted roofs		* Specifying insulation for inverted roofs
−	* Ten facts about Expanded Polystyrene (EPS) insulation to help specifiers
	* Thermal insulation for buildings		* Thermal insulation for buildings
	* Types of insulation		* Types of insulation

Designing Buildings at 06:36, 29 July 2022

2022-07-29T06:36:21Z

← Older revision		Revision as of 06:36, 29 July 2022
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	Rock or stone wool is made from molten rock materials (such as ceramics or slag cast-offs – a by-product of the smelting process). It is made by blowing a stream of air through molten rock at a temperature of around 1,600°C. The result is very fine strands which are combined to create a wool-type material; alternatively, stone wool can be made by a process analogous to that of making candy floss – the molten rock is spun at high speeds and the threads drawn off. Typically, they will have a diameter in the range of 2-6 microns (millionths of a metre). They are then amalgamated to produce the characteristic woolly structure which can be compressed into boards, mineral wool batts or other forms. In its loose form, the wool can be blown into cavity walls and roof void spaces.		Rock or stone wool is made from molten rock materials (such as ceramics or slag cast-offs – a by-product of the smelting process). It is made by blowing a stream of air through molten rock at a temperature of around 1,600°C. The result is very fine strands which are combined to create a wool-type material; alternatively, stone wool can be made by a process analogous to that of making candy floss – the molten rock is spun at high speeds and the threads drawn off. Typically, they will have a diameter in the range of 2-6 microns (millionths of a metre). They are then amalgamated to produce the characteristic woolly structure which can be compressed into boards, mineral wool batts or other forms. In its loose form, the wool can be blown into cavity walls and roof void spaces.

−	= Related articles on Designing Buildings ~~Wiki~~ =	+	[https://www.bsria.com/uk/product/oBKRqD/illustrated_guide_to_mechanical_building_services_3rd_edition_bg_312017_a15d25e1/ Illustrated Guide to Mechanical Building Services 3rd Edition (BG 31/2017)], written by David Bleicher and published by BSRIA in May 2017, suggests that mineral wool is: ‘A soft insulation made from drawn glass or rock fibres. It is commonly used on hot water and heating services. In slab form it is also used to insulate ductwork, and is often used as an acoustic insulation around drainage. The insulating properties of mineral wool are reduced when it gets wet, so it should not be used in locations where this might happen, for example outdoors. If used on cold water, chilled water or refrigeration pipework, it must be vapour sealed to reduce the risk of condensation forming on the pipe surface.’
		+
		+	= Related articles on Designing Buildings =

	* Acoustic insulation		* Acoustic insulation

Designing Buildings at 07:50, 24 January 2021

2021-01-24T07:50:28Z

← Older revision		Revision as of 07:50, 24 January 2021
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−	[[File:~~Mineral wool~~.jpg]]	+	[[File:Mineral_wool.jpg\|link=File:Mineral_wool.jpg]]

	Mineral wool is a wide-ranging term which describes fibrous, spun yarn materials used as insulation in construction and other sectors. Depending on the mineral used and the process employed, it also goes by names, such as glass wool, stone wool, slag wool, mineral fibre (or fiber), mineral cotton, man-made vitreous fibre and man-made mineral fibre.		Mineral wool is a wide-ranging term which describes fibrous, spun yarn materials used as insulation in construction and other sectors. Depending on the mineral used and the process employed, it also goes by names, such as glass wool, stone wool, slag wool, mineral fibre (or fiber), mineral cotton, man-made vitreous fibre and man-made mineral fibre.
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	* Wall insulation and moisture risk		* Wall insulation and moisture risk

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

Designing Buildings at 10:31, 7 November 2019

2019-11-07T10:31:15Z

← Older revision		Revision as of 10:31, 7 November 2019
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		+	[[File:Mineral wool.jpg]]
		+
	Mineral wool is a wide-ranging term which describes fibrous, spun yarn materials used as insulation in construction and other sectors. Depending on the mineral used and the process employed, it also goes by names, such as glass wool, stone wool, slag wool, mineral fibre (or fiber), mineral cotton, man-made vitreous fibre and man-made mineral fibre.		Mineral wool is a wide-ranging term which describes fibrous, spun yarn materials used as insulation in construction and other sectors. Depending on the mineral used and the process employed, it also goes by names, such as glass wool, stone wool, slag wool, mineral fibre (or fiber), mineral cotton, man-made vitreous fibre and man-made mineral fibre.

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	* Wall insulation and moisture risk		* Wall insulation and moisture risk

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

Designing Buildings at 10:28, 7 November 2019

2019-11-07T10:28:51Z

← Older revision		Revision as of 10:28, 7 November 2019
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−	~~= Introduction =~~	+	Mineral wool is a wide-ranging term which describes fibrous, spun yarn materials used as insulation in construction and other sectors. Depending on the mineral used and the process employed, it also goes by names, such as glass wool, stone wool, slag wool, mineral fibre (or fiber), mineral cotton, man-made vitreous fibre and man-made mineral fibre.

−	~~Mineral wool is a wide-ranging term which covers a fibrous~~, ~~spun yarn material used as thermal~~, ~~fire and acoustic~~ insulation in ~~construction and other sectors. Depending on~~ the mineral used and the process employed, it also goes by various names, such as glass wool, stone wool, slag wool, mineral fibre (or fiber), mineral cotton, man-made vitreous fibre and man-made mineral fibre.	+	Although first produced commercially in 1871 in Osnabruck, Germany, the rock wool insulation industry was initiated in the US in 1897 when Charles Hall was able to convert molten rock into fibres.

−	Although first produced commercially in Germany in 1871 in Osnabruck, Germany, the rock wool insulation industry was initiated in the US in 1897 when Charles Hall was able to convert molten rock into fibres.	+	Mineral wool applications in construction include:
−		+
−	= Mineral wool applications in construction =	+
−		+
−	~~These~~ include:	+

	* As thermal insulation: in masonry cavity-walls, timber frame construction, and for roof spaces, also, in stud-partition walls and flat roofs, as well as for pipework and ductwork.		* As thermal insulation: in masonry cavity-walls, timber frame construction, and for roof spaces, also, in stud-partition walls and flat roofs, as well as for pipework and ductwork.
	* As acoustic insulation to resist the transmission of sound through partition walls and storey floors.		* As acoustic insulation to resist the transmission of sound through partition walls and storey floors.
		+	* As fire insulation.
	* To absorb water and air to help root growth and nutrient uptake in hydroponics – ie, growing plants without soil using only solutions and minerals.		* To absorb water and air to help root growth and nutrient uptake in hydroponics – ie, growing plants without soil using only solutions and minerals.

−	= Properties =	+	Properties:
−		+
−	Because it is porous with an open fibre structure, mineral wool traps air, making it highly efficient as an insulation material. A representative lambda (λ) value for it would be around 0.03W-0.04/mK. The wool’s porous nature also makes it a good noise absorber. It is also incombustible and does not fuel the spread of flame. Mineral wool is considered as not prone to thermal ageing, which means it can retain its insulating properties for as long as it is in service.	+
−		+
−	~~Mineral wool tends not to absorb water which means it does not sustain vermin and is highly resistant to the growth of mould, fungi or bacteria.~~	+
−		+
−	~~=== Fire and acoustic properties ===~~	+
−		+
−	Glass- and rock-mineral wool insulation may be completely non-combustible (Euroclass A1 fire rating (non-combustible material’)) and can slow the spread of flame – this can allow a building’s occupants extra time to escape.	+
−		+
−	Mineral wool also has low thermal conductivity and resists the passage of sound. It is highly resistant to expansion and shrinkage which results in joints that stay as close as possible. It is also relatively cost effective – typically, at 2018 prices, glass wool can cost around £13-£18/square metre.	+
−		+
−	~~The two main variants of mineral wool are~~:	+

−	* ~~Stone~~ wool and	+	* Because it is porous with an open fibre structure, mineral wool traps air, making it highly efficient as an insulation material. A representative lambda (λ) value for it would be around 0.03W-0.04/mK.
−	* Glass wool.	+	* The wool’s porous nature also makes it a good noise absorber. It is also incombustible and does not fuel the spread of flame.
		+	* Mineral wool is not prone to thermal ageing, which means it can retain its insulating properties for as long as it is in service.
		+	* Mineral wool does not sustain vermin and is highly resistant to the growth of mould, fungi or bacteria.
		+	* Glass and rock mineral wool insulation may be completely non-combustible (Euroclass A1 fire rating (non-combustible material’)) and can slow the spread of flame – this can allow a building’s occupants extra time to escape.
		+	* Mineral wool also has low thermal conductivity and resists the passage of sound. It is highly resistant to expansion and shrinkage which results in joints that stay as close as possible. It is also relatively inexpensive

−	~~Glass wool: typically, manufactured by spinning or drawing a yarn~~ of ~~melted glass; a binder is used to form the~~ glass ~~fibres into a~~ wool~~-type consistency. It can be produced as rolls, slabs, applied in-situ or sprayed~~.	+	The two main variants of mineral wool are stone wool and glass wool.

−	~~= Rock~~ wool ~~(stone~~ wool~~) =~~	+	Glass wool is typically, manufactured by spinning or drawing a yarn of melted glass; a binder is used to form the glass fibres into a wool-type consistency. It can be produced as rolls, slabs, applied in-situ or sprayed.

−	Rock or stone wool is made from molten rock materials (such as ceramics or slag cast-offs – a by-product of the smelting process). It is made by blowing a stream of air through molten rock at a temperature of around 1,600°C. The result is very fine strands which are combined ~~in a special process~~ to create a wool-type material; alternatively, stone wool can be made by a process analogous to that of making candy floss – the molten rock is spun at high speeds and the threads drawn off. Typically, they will have a diameter in the range of 2-6 microns (millionths of a metre). They are then amalgamated ~~in a special process~~ to produce the characteristic woolly structure ~~then~~ compressed into boards, mineral wool batts or other forms. In its loose form, the wool can be blown into cavity walls and roof void spaces.	+	Rock or stone wool is made from molten rock materials (such as ceramics or slag cast-offs – a by-product of the smelting process). It is made by blowing a stream of air through molten rock at a temperature of around 1,600°C. The result is very fine strands which are combined to create a wool-type material; alternatively, stone wool can be made by a process analogous to that of making candy floss – the molten rock is spun at high speeds and the threads drawn off. Typically, they will have a diameter in the range of 2-6 microns (millionths of a metre). They are then amalgamated to produce the characteristic woolly structure which can be compressed into boards, mineral wool batts or other forms. In its loose form, the wool can be blown into cavity walls and roof void spaces.

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

Editor at 18:46, 22 October 2019

2019-10-22T18:46:36Z

← Older revision		Revision as of 18:46, 22 October 2019
Line 19:		Line 19:
	Mineral wool tends not to absorb water which means it does not sustain vermin and is highly resistant to the growth of mould, fungi or bacteria.		Mineral wool tends not to absorb water which means it does not sustain vermin and is highly resistant to the growth of mould, fungi or bacteria.

−	= Fire and acoustic properties =	+	=== Fire and acoustic properties ===

	Glass- and rock-mineral wool insulation may be completely non-combustible (Euroclass A1 fire rating (non-combustible material’)) and can slow the spread of flame – this can allow a building’s occupants extra time to escape.		Glass- and rock-mineral wool insulation may be completely non-combustible (Euroclass A1 fire rating (non-combustible material’)) and can slow the spread of flame – this can allow a building’s occupants extra time to escape.

Editor: Created page with "= Introduction = Mineral wool is a wide-ranging term which covers a fibrous, spun yarn material used as thermal, fire and acoustic insulation in construction and other sectors. ..."

2019-10-22T18:45:06Z

Created page with "= Introduction = Mineral wool is a wide-ranging term which covers a fibrous, spun yarn material used as thermal, fire and acoustic insulation in construction and other sectors. ..."

New page

= Introduction =

Mineral wool is a wide-ranging term which covers a fibrous, spun yarn material used as thermal, fire and acoustic insulation in construction and other sectors. Depending on the mineral used and the process employed, it also goes by various names, such as glass wool, stone wool, slag wool, mineral fibre (or fiber), mineral cotton, man-made vitreous fibre and man-made mineral fibre.

Although first produced commercially in Germany in 1871 in Osnabruck, Germany, the rock wool insulation industry was initiated in the US in 1897 when Charles Hall was able to convert molten rock into fibres.

= Mineral wool applications in construction =

These include:

* As thermal insulation: in masonry cavity-walls, timber frame construction, and for roof spaces, also, in stud-partition walls and flat roofs, as well as for pipework and ductwork.
* As acoustic insulation to resist the transmission of sound through partition walls and storey floors.
* To absorb water and air to help root growth and nutrient uptake in hydroponics – ie, growing plants without soil using only solutions and minerals.

= Properties =

Because it is porous with an open fibre structure, mineral wool traps air, making it highly efficient as an insulation material. A representative lambda (λ) value for it would be around 0.03W-0.04/mK. The wool’s porous nature also makes it a good noise absorber. It is also incombustible and does not fuel the spread of flame. Mineral wool is considered as not prone to thermal ageing, which means it can retain its insulating properties for as long as it is in service.

Mineral wool tends not to absorb water which means it does not sustain vermin and is highly resistant to the growth of mould, fungi or bacteria.

= Fire and acoustic properties =

Glass- and rock-mineral wool insulation may be completely non-combustible (Euroclass A1 fire rating (non-combustible material’)) and can slow the spread of flame – this can allow a building’s occupants extra time to escape.

Mineral wool also has low thermal conductivity and resists the passage of sound. It is highly resistant to expansion and shrinkage which results in joints that stay as close as possible. It is also relatively cost effective – typically, at 2018 prices, glass wool can cost around £13-£18/square metre.

The two main variants of mineral wool are:

* Stone wool and
* Glass wool.

Glass wool: typically, manufactured by spinning or drawing a yarn of melted glass; a binder is used to form the glass fibres into a wool-type consistency. It can be produced as rolls, slabs, applied in-situ or sprayed.

= Rock wool (stone wool) =

Rock or stone wool is made from molten rock materials (such as ceramics or slag cast-offs – a by-product of the smelting process). It is made by blowing a stream of air through molten rock at a temperature of around 1,600°C. The result is very fine strands which are combined in a special process to create a wool-type material; alternatively, stone wool can be made by a process analogous to that of making candy floss – the molten rock is spun at high speeds and the threads drawn off. Typically, they will have a diameter in the range of 2-6 microns (millionths of a metre). They are then amalgamated in a special process to produce the characteristic woolly structure then compressed into boards, mineral wool batts or other forms. In its loose form, the wool can be blown into cavity walls and roof void spaces.

= Related articles on Designing Buildings Wiki =

* Acoustic insulation
* Acoustic insulation market
* Advice for External Wall Insulation (EWI) systems with a render or brick-slip finish
* Aerogel insulation for buildings
* BR 135 Fire Performance of external thermal insulation for walls of multi-storey buildings
* BREEAM Insulation
* Cavity wall insulation
* Designing out unintended consequences when applying solid wall insulation FB 79
* External wall insulation
* Floor insulation
* Insulation for ground floors
* Loft insulation ruling
* Reducing thermal bridging at junctions when designing and installing solid wall insulation FB 61
* Roof insulation
* Solid wall insulation
* Solid Wall Insulation: Unlocking demand and driving up standards
* Sound insulation in buildings
* Specifying insulation for inverted roofs
* Ten facts about Expanded Polystyrene (EPS) insulation to help specifiers
* Thermal insulation for buildings
* Types of insulation
* Understanding Insulation and the Part It Plays in Building Regulations
* Wall insulation and moisture risk

[[Category:Products_/_components]]