Rockwool Insulation

Rockwool Insulation

Rockwool Flexi, RWA45, RW3, RW5, Cavity slabs, Ablative batt and Fire Barrier.

Rockwool manufacture rock fibre products that offer fire stopping, acoustic attenuation and thermal insulation for numerous applications within and outside the building envelope.

Stone wool is a versatile natural material with multiple benefits that makes it ideal for applications in newbuild and refurishment projects.


Products by Rockwool

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Rockwool Ablative Batt

Rockwool Ablative Coated Batt, a high density stone wool slab with an ablative coating on both faces, is suitable for the following applications: sealing service penetrations, head of wall and other void seals.

Available in thickness 50mm.

Up to 2 hours of fire resistance depending on sevice penetrations and void sizes.

View our Rockwool Ablative Batt page for further details and prices on the product

Buy Rockwool Ablative Coated Batt rigid board insulation products
Rockwool Cavity Batt

Rockwool Cavity Batt, a semi rigid stone wool slab, is suitable for the following applications: masonry cavity wall construction and masonry party walls between dwellings in both new builds and extensions.

Available in thicknesses from 50mm - 100mm.

Has a Thermal Conductivity of 0.037 W/mK, water repellent and non-combustable.

View our Rockwool Cavity Insulation page for further details and prices on the product

Buy Rockwool Cavity Batt full fill cavity insulation products
Rockwool Fire Barrier

Rockwool Fire Barrier, a stone wool roll with a galvanised mesh on one side with options of foil faces on one or both sides, is suitable for the following applications: pitch roof voids, head of walls, concealed ceiling spacs, and structural steelwork.

Available in thicknesses from 50mm - 60mm.

Up to 2 hours of fire resistance in voids up to 10.5m.

View our Rockwool Fire Barrier page for further details and prices on the product

Buy Rockwool Fire Barrier rigid board insulation products
Rockwool Flexi
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Rockwool Flexi, a semi rigid stone wool slab with a sponge-like edge, available in 400mm and 600mm wide slabs, is suitable for the following applications: pitched roof rafters, framed external walls, internal partitions, intermediate floors, separating walls and floors, and timber suspended ground floors.

Available in thicknesses from 50mm - 140mm.

Has a Thermal Conductivity ranging from 0.038 - 0.035 W/mK depending on thickness, a nominal density of 33 kg/m³ and is non-combustable.

View our Rockwool Flexi page for further details and prices on the product

Buy Rockwool Flexi semi rigid slab insulation products
Rockwool RWA45
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Rockwool Building Slab RWA45, a semi rigid stone wool slab, is suitable for the following applications: pitched roof rafters, framed external walls, internal partitions, intermediate floors, separating walls and floors, and timber suspended ground floors.

Available in thicknesses from 25mm - 100mm.

Has a Thermal Conductivity of 0.035 W/mK, a nominal density of 45 kg/m³ and is non-combustable.

View our Rockwool (RW) Building Slab RWA45 page for further details and prices on the product

Buy Rockwool Building Slab RWA45 rigid board insulation products
Rockwool RW3
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Rockwool Building Slab RW3, a semi rigid stone wool slab, is suitable for the following applications: pitched roof rafters, framed external walls, internal partitions, intermediate floors, separating walls and floors, and timber suspended ground floors.

Available in thicknesses from 25mm - 100mm.

Has a Thermal Conductivity of 0.035 W/mK, a nominal density of 60 kg/m³ and is non-combustable.

View our Rockwool (RW) Building Slab RW3 page for further details and prices on the product

Buy Rockwool Building Slab RW3 rigid board insulation products
Rockwool RW5
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Rockwool Building Slab RW5, a semi rigid stone wool slab, is suitable for the following applications: pitched roof rafters, framed external walls, internal partitions, intermediate floors, separating walls and floors, and timber suspended ground floors.

Available in thicknesses from 25mm - 100mm.

Has a Thermal Conductivity of 0.034 W/mK, a nominal density of 100 kg/m³ and is non-combustable.

View our Rockwool (RW) Building Slab RW5 page for further details and prices on the product

Buy Rockwool Building Slab RW5 rigid board insulation products