Our industry accreditations.
Stone Wool Insulation
Stone wool insulation is a unique and highly versatile product. Its exceptional thermal properties have contributed massively to European efforts to save energy, in turn combatting climate change. In addition to energy saving efforts, it has contributed to noise pollution, both in residential and industrial settings. This is due to the makeup of stone wool insulation – it is a mat of mineral fibres woven together that prevents air movement. It also has a high thermal resistance, contributing to the reduction of home and industrial fires over recent years.
The success of stone wool has led it to be used in a variety of different applications and situations. It is a common choice for home cavity wall insulation, loft insulation, and underfloor insulation. It’s inherent properties and long lifespan make it an ideal choice for a near-permanent solution to any home insulation problem.
What Is Stone Wool Insulation?
Stone wool is the general name for fibrous materials that are formed by spinning or drawing molten minerals into strands of fibre. The resulting fibres have a combination of physical properties that no other insulative material can match.
Stone Wool Insulation
Inorganic rock or slag are the main components – typically in the region of 98% - of stone wool insulation. The remaining ~2% organic content is generally some form of thermosetting resign binder, an adhesive used to make the stone wool insulation more cohesive, and a little oil.
Stone wool insulation is commonly formed form volcanic rock, often basalt or dolomite, of which an increasing portion is recycled material in the form of briquettes. Not only is it, by its very nature, naturally renewable and sustainable, it boasts a unique combination of physical properties that result in a multitude of benefits for insulative materials.
Features of stone wool:
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Stone wool insulation has excellent thermal insulation, reducing energy consumption in the winter and helping preventing your home from overheating in the summer.
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Stone wool comes in rolls that can be unrolled between joists, making it relatively easy to install (not as easy as glass wool).
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Stone wool has superior fire resistance when compared to glass wool; installing it can actually improve the fire resistance of your property, effectively acting as a fire barrier.
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Stone wool is about 4 times denser than glass wool, so has better acoustic properties.
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Stone wool is costs approximately £5/m2.
ROCKWOOL Insulation
ROCKWOOL Cavity Wall Insulation
With timber frame fast becoming the preferred method of home construction due to the attached costs and relatively quick building times, extra care must be taken to ensure an appropriate level of fire safety. This is where ROCKWOOL stone wool insulation steps in; perfect for use in cavity wall insulation, underfloor insulation, or loft space insulation, ROCKWOOL has the necessary thermal resistance to reduce the risk of fire in a home setting.
The speed, simplicity, and accuracy that comes with a ROCKWOOL installation also make it perfect for home insulation installations. The stone wool insulation slabs fit tightly into the studies, leaving no gaps for loss of heat or allowing for the escape of any sound. The high dimensional stability of the ROCKWOOL slabs also means they stay in place for the lifetime of the building, even as timbers continue to dry out and contract after construction.
Benefits of ROCKWOOL Cavity Wall Insulation
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Patented ‘Flexi’ edge offers accurate fit to all widths
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Will not slump, even if studs shrink
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Fits all typical metal and timber frame spacing
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Excellent thermal, acoustic and fire properties
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Non-combustible (Euroclass A1)
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Fast and easy to handle and install
ROCKWOOL Cavity Wall Insulation Technical Information
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Property
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Dimensions
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Thickness
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Thermal Conductivity
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Acoustic Properties
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Fire Properties
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Water Repellency
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Vapour Resistivity
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Environmental
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Standards
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Description
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400mm & 600mm x 1200mm
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50mm - 200mm
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Thermal - 50mm - 120mm, 0.038 W/mK // Acoustic - 140mm - 200mm, 0.035
W/mK -
Achieves Part E (resistance to sound) when installed in accordance to
ROCKWOOL guidelines -
Euroclass A1
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Water Repellent
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Negligible
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Zero ODP & GWP
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BS EN 13162, ISO 14001: 2004
ROCKWOOL Loft Insulation
Another large area of application for ROCKWOOL stone wool insulation is loft insulation. ROCKWOOL can be used to provide solutions for application at the ceiling line – ideal for residential buildings where the loft space does not need to be habitable. Insulation can either be supplied by ROCKWOOL insulation rolls or by blown fibres. Both solutions are a great improvement for the thermal efficiency of a building, making them ideal for loft insulation.
ROCKWOOL Loft Insulation Technical Information
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Property
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Dimensions
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Thickness
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Thermal Conductivity
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Fire Properties
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Third Party Approvals
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Standards
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Description
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400mm, 600mm & 1200mm x 2750mm – 4800mm
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100mm – 220mm
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0.044 W/mK
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Euroclass A1
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Zero ODP & GWP
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BS EN 13162, ISO 14001: 2004
Knauf Insulation
Knauf is among the leaders of the industry when it comes to the production of stone wool insulation. They are unique in that they are the only UK manufacturer of glass mineral wool and rock mineral wool insulation products. They have been in operations since the ‘30s, with their innovative products being the reason for their continued success. Their Earthwool range are extremely versatile and can be used in situations from loft insulation to HVAC and industrial insulation.
ECOSE® Technology
Knauf Insulation mineral wool products with ECOSE® Technology benefit from a no added formaldehyde binder, which is up to 70% less energy intensive than traditional binders and is made from rapidly renewable bio-based materials instead of petroleum-based chemicals.
The technology has been developed for Knauf Insulation’s glass and rock mineral wool products, enhancing their environmental credentials without affecting the thermal, acoustic or fire performance. Insulation products made with ECOSE Technology contain no dye or artificial colours.
Knauf Krimpact Flat Roof Slab
The Knauf Krimpact Flat Roof Slab stone wool insulation is a thermal insulation product perfect for flat roof insulation. Rocksilk Krimpact Flat Roof Slabs are high strength, dense rigid slabs made from rock mineral wool, manufactured using Krimpact technology, specifically designed for use in flat roofing applications. Rocksilk Krimpact Flat Roof Slabs are available in two grades – Rocksilk Krimpact Flat Roof Slab and Rocksilk Krimpact Flat Roof Slab Extra. Rocksilk Krimpact Flat Roof Slabs contain a special additive to ensure their water repellence.
Knauf Kirmpact Product Data
Krimpact Flat Roof Slab
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Thickness (mm)
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180
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145
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120
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100
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Thermal conductivity (W/mK
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0.038
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0.038
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0.038
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0.038
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Thermal resistance (m2K/W)
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4.70
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3.80
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3.15
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2.60
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Length(mm)
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1200
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1200
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1200
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1200
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Width(mm)
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900
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900
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900
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900
Krimpact Flat Roof Slab Extra
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Thickness (mm)
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150
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125
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105
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95
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Thermal conductivity (W/mK
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0.039
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0.039
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0.039
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0.039
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Thermal resistance (m2K/W)
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3.80
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3.20
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2.65
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2.40
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Length(mm)
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1200
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1200
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1200
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1200
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Width(mm)
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900
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900
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900
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900
Contact DMS today to find out more on how installing stone wool insulation will make your home more comfortable, less expensive to heat, and more environmentally friendly.
Testimonials.
“Outstanding service”
Contacted DMS Installations when my boiler packed in. Can not fault the service from start to finish and I'm amazed how quickly my problem was resolved. They sent an engineer out to my house straight away to give me quotes for a new boiler then within three days I now have a new combi boiler fitted!! Which means hot water and working radiators woo hoo!! Would recommend this company to anyone.
“Professional and knowledgeable”
Highly knowledgeable and helpful, guided me through the options at length. I was guided to a Renewable solution that pays for itself through RHI / FIT and my bills are down £165 a month. Thanks!
“Great service ”
The staff were all very helpful and friendly. I now have the kitchen I wanted. Thank you DMS. The workmen were great guys. I already recommended them to my mate
“Fantastic Team”
My mother had her insulation and boiler upgraded, the workman team that did the work were outstanding and very professional> I would gladly reccomend "DMS Installations"
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