Mineral Wool Insulation

Fibrous

Made from recycled glass or volcanic rock, mineral wool is one of the most popular insulation materials in the UK due to its excellent thermal performance and fire resistance.

Cost

£3.50

Per m²

R-Value

R-4.2

Per inch

Fire Rating

Excellent (Non-combustible)

Safety Rating

Lifespan

50+

Years

Eco Rating

Good

Environmental

Performance Overview

Thermal Properties

Thermal Conductivity:0.034 W/m·K
R-Value per inch:R-4.2
Temperature Range:-40°C to +750°C
Density:20-100 kg/m³

Safety & Environmental

Fire Rating:
Excellent (Non-combustible)
Moisture Resistance:
Good
Eco-Friendliness:
Good
Recyclable:
Yes

Installation & Application

Installation Methods

Blown-in
Batts
Boards

Installation Details

Vapour Barrier:Separate required
Maintenance:Maintenance-free
Availability:Widely Available

Safety Considerations

Wear protective clothing, dust mask recommended during installation

Best Applications

Loft Insulation

9.5/5
Highly Recommended
R-Value Achievable:R-6.0 to R-7.0
Cost Category:Standard

Rolled or blown between joists

Cavity Wall Insulation

9.0/5
Highly Recommended
R-Value Achievable:R-3.5 to R-4.0
Cost Category:Standard

Blown into cavity through small holes

Solid Wall Insulation

8.5/5
Recommended
R-Value Achievable:R-4.0 to R-5.0
Cost Category:Standard

Internal wall systems

Regional Cost Guide

London & South East

Material: £4.50 | Labor: £5.50

£10.00
per m²

London & South East

Material: £4.50 | Labor: £6.00

£10.50
per m²

North England

Material: £8.50 | Labor: £8.50

£17.00
per m²

London & South East

Material: £8.50 | Labor: £12.00

£20.50
per m²

Environmental Impact

Sustainability Features

Recycled Content: Up to 85% recycled glass
Fully recyclable at end of life
Eco-rating: Good

Energy Impact

Mineral Wool insulation can reduce home heating costs by 15-25% when properly installed, significantly reducing your carbon footprint over its 50-year lifespan.

Popular Brands

RockwoolKnaufISOVERSuperglass

These are some of the most trusted manufacturers of Mineral Wool insulation in the UK market.

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Technical Specifications

Thermal Conductivity
0.034 W/m·K
R-Value per Inch
R-4.2
Fire Rating
Excellent (Non-combustible)
Sound Insulation
Excellent
Moisture Resistance
Good
Temperature Range
-40°C to +750°C

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