Rock Wool External Wall Insulation Slabs

Rock Wool External Wall Insulation Slabs are made from stone wool a blend of naturally occurring volcanic diabase rock. It protects against unwanted noise, fire, and provides unrivalled durability at no cost to the environment. Its a 4-in-1 solution.


  • Superior Fire Resistance - Put simply, rock wont burn.
  • Excellent Acoustics - Unique properties help to reduce the effect of noise.
  • Unrivalled Durability - Wont shrink, wont move and wont crumble. It is so durable it will maintain its performance for the lifetime of the building.
  • Sustainable Materials - Made from a renewable and plentiful natural resource, Rock Wool saves fuel costs and energy in use. And its fully recyclable, too.

Using external wall insulation is one of the best ways to protect a building and its inhabitants from the environment. Exterior wall insulation protects the building and its occupants from the cold and heat as well as noise and fire. Rock Wool External Slabs are made from stone and the insulation is both water repellent and vapour permeable helping to protect the building from moisture damage. They are also dimensionally stable so it will hold its shape and position over time providing durability, maintaining performance throughout the life of the building. They are non-combustible, therefore any exterior wall insulated with Rock Wool insulation will help to prevent the spread of fire, protecting the building, the occupants and its contents.

Rock Wool is water repellent, and because of the open fibre structure is breathable. This means that moist air can circulate freely out to the open. Ceresit CT137 mineral render would enhance the breathability external wall.

Rock Wool external slabs are used in applications,

  • Rendered facades,
  • Ventilated facades
                                                                 




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60mm Rockwool Frontrock  MAX E  Dual Density External Wall Insulation Slab 1000x600mm (pack of 4)

60mm Rockwool Frontrock MAX E Dual Density External Wall Insulation Slab 1000x600mm (pack of 4)

1000x600mm - 2.40m2  Delivery Time: 3 - 7 days

A1-1694
Due to nationwide shortage the lead time may be longer for this product.

60mm Rockwool Frontrock MAX E is a rigid dual density thermal and acoustic insulation slab made from volcanic rock, thus extremely durable, fire resistant and specifically created for external wall applications to go directly under render. The higher density surface of the slab is to take the r..

A1-1694
= m2
other thicknesses
75mm Rockwool SP60 Firestop Cavity Slab (pack of 4)

75mm Rockwool SP60 Firestop Cavity Slab (pack of 4)

1000x650mm - 2.60m2  Delivery Time: 2 - 3 days

Guide Price: £169.00 (£202.80 inc VAT)

£65.00/m2 (£78.00/m2 inc VAT)

A1-2028
Due to nationwide shortage the lead time may be longer for this product.

75mm Rockwool SP60 Firestop Cavity Slab systems form cavity fire stops within commercial and industrial buildings. The solution may be installed horizontally or vertically and is suitable for varying cavity widths in masonry and curtain wall constructions. The product has been designed as a one-piec..

Guide Price: £169.00 (£202.80 inc VAT)

£65.00/m2 (£78.00/m2 inc VAT)

A1-2028
= m2
other thicknesses
30mm Rockwool Dual Density Slab for Insulated Renders (pack of 5)

30mm Rockwool Dual Density Slab for Insulated Renders (pack of 5)

1200x600mm - 3.60m2  Delivery Time: 3 - 7 days

A1-3211

30mm Rockwool Dual Density Slab is a rigid thermal insulation slab specifically created for external wall applications to go directly under render.  It is made from volcanic rock, thus extremely durable and fire resistant.  The higher density outer surface of the slab is to ..

A1-3211
= m2
other thicknesses
50mm CTP Insulation Panel Fixings (pack of 300)

50mm CTP Insulation Panel Fixings (pack of 300)

50x4.5mm CTP - Free Delivery  show quantity discountsDelivery Time: 1 - 2 days

£51.81 (£62.17 inc VAT)

show quantity discounts
A10-254

50mm CTP Insulation Panel Fixings for rigid and semi-rigid insulating boards and panels. APPLICATIONWood, Panels & sheets..

£51.81 (£62.17 inc VAT)

show quantity discounts
A10-254
other lengths
50mm FPR Insulation Panel Fixings (pack of 500)

50mm FPR Insulation Panel Fixings (pack of 500)

50x8 FPR - Free Delivery  show quantity discountsDelivery Time: 1 - 2 days

£34.84 (£41.81 inc VAT)

show quantity discounts
A10-249

50mm Polypropylene Insulation fixings for rigid and semi-rigid insulating boards and panels.APPLICATIONConcreteSolid stoneSolid brick..

£34.84 (£41.81 inc VAT)

show quantity discounts
A10-249
other lengths
50mm Rockwool Rainscreen Duo Slab (pack of 8) - pallet of 12

50mm Rockwool Rainscreen Duo Slab (pack of 8) - pallet of 12

1200x600mm - 69.12m2  Delivery Time: 2 - 3 weeks

£734.82 (£881.78 inc VAT)

£10.63/m2 (£12.76/m2 inc VAT)

A1-2997

50mm Rockwool Rainscreen Duo Slab is a dual-density rigid insulation for use in ventilated cladding systems and sealed systems such as curtain walling. The outer layer of each slab has a higher density than the remainder of the product and added with a water-repellent agent during manufact..

£734.82 (£881.78 inc VAT)

£10.63/m2 (£12.76/m2 inc VAT)

A1-2997
= m2
other thicknesses
67mm Disk Cutter for Polystyrene Sheets WK-FT

67mm Disk Cutter for Polystyrene Sheets WK-FT

67mm  Delivery Time: 1 - 2 days

£8.88 (£10.66 inc VAT)

A1-2684

67mm WK-FT disk cutter is used to cut holes in EWI polystyrenes sheets. The end cap can be installed correctly on the hole and cover it to get a homogeneous surface. The The tool diameter is 66.7mm, which would give an exact 67mm hole. CHARACTERISTICSMade from tough plastic,Would cut 67mm holes..

£8.88 (£10.66 inc VAT)

A1-2684
67mm Grey Polystyrene Plug KSG for EWI Polystyrene Boards - pack of 100

67mm Grey Polystyrene Plug KSG for EWI Polystyrene Boards - pack of 100

Grey - 67mm  Delivery Time: 1 - 2 days

£6.66 (£7.99 inc VAT)

A1-2685

67mm Grey Polystyrene Plug KSG for EWI Polystyrene Sheets used to cover the pin shaft, blocking the thermal bridge giving a homogeneous surface.INSTALLATIONThe hole must be then covered with the grey polystyrene plug to stop any thermal bridging (last picture).CERTIFICATIONEuropean Technical Approva..

£6.66 (£7.99 inc VAT)

A1-2685
70mm Universal Insulation Panel Fixing with Metal Pin LMX10 (pack of 200)

70mm Universal Insulation Panel Fixing with Metal Pin LMX10 (pack of 200)

70mm  Delivery Time: 1 - 2 days

£52.50 (£63.00 inc VAT)

A1-1893

70mm Universal Insulation Panel Fixing with Metal Pin LMX10 is for fixing 10mm thick polystyrene, mineral wool and lamella mineral wool external insulation on concrete, brick, light and autoclave concrete substrates. If the substrate surface is absolutely flat, you may use this anchor to fix in..

£52.50 (£63.00 inc VAT)

A1-1893
other lengths
Ceresit CT 240 Winter - Additive for Wet Renders and Paints Drying Under Low Temperatures - 100ml

Ceresit CT 240 Winter - Additive for Wet Renders and Paints Drying Under Low Temperatures - 100ml

CT240  Delivery Time: 2 - 4 days

A1-2995

Ceresit CT 240 Winter is a high quality accelerating additive for wet renders and paints drying under low temperatures in late autumn and early spring times, especially when the temperature fall below zero in the nights. This additive can be used for thin-coat acrylic renders - CT 60,..

A1-2995
Ceresit CT 280 Winter - Additive for ETICS and Wet Renders Drying Under Low Temperatures - 250g

Ceresit CT 280 Winter - Additive for ETICS and Wet Renders Drying Under Low Temperatures - 250g

CT280  Delivery Time: 2 - 4 days

A1-2996

Ceresit CT 280 Winter is a high quality accelerating additive for ETICS and wet renders drying under low temperatures in late autumn and early spring times, especially when the temperature fall below zero in the nights. This additive can be used for cement based mineral adhesive morta..

A1-2996
Ceresit CT 80 Universal Adhesive for Mineral Wool EWI Slabs, Polystyrene and Phenolic Boards

Ceresit CT 80 Universal Adhesive for Mineral Wool EWI Slabs, Polystyrene and Phenolic Boards

CT80 - 25kg  Delivery Time: 7 - 10 days

Guide Price: £16.00 (£19.20 inc VAT)

A1-2679

Ceresit CT 80 is an adhesive mortar for fastening EWI mineral wool slabs, polystyrene and phenolic boards and also for making a thin layer of base coat render reinforced with fibreglass mesh on the insulation in Insulated Renders Systems. Ceresit CT 80 has very good adhesion to load-bearing, de..

Guide Price: £16.00 (£19.20 inc VAT)

A1-2679
Ceresit CT16 Primer - 10 litres

Ceresit CT16 Primer - 10 litres

10 litres  show quantity discountsDelivery Time: In Stock 1-2 working days

£30.00 (£36.00 inc VAT)

£1.07/m2 (£1.28/m2 inc VAT)

show quantity discounts
A10-633

Ceresit CT16 is designed for priming substrates before the application of mineral, acrylic, silicone and silicone-silicate thin-coat renders, finishes and paint coats. Facilitates the application and texturing of plasters, optimize the drying process and improves the plaster-to-substrate adhesi..

£30.00 (£36.00 inc VAT)

£1.07/m2 (£1.28/m2 inc VAT)

show quantity discounts
A10-633
= m2
Ceresit CT17 Profi Deep-penetrating Primer - 10L

Ceresit CT17 Profi Deep-penetrating Primer - 10L

CT17  Delivery Time: 5 - 7 days

A1-2403

Ceresit CT17 Profi is a deep penetrating primer for priming walls, floors, ceilings inside and outside buildings prior to fixing ceramic tiles, pouring floors, fixing floor lining, papering, puttying, painting, or fixing thermal insulation boards.  It is highly recommended for aerated..

A1-2403
Ceresit CT190 Adhesive and Reinforcing Mortar for Mineral Wool External Wall Insulation Slabs

Ceresit CT190 Adhesive and Reinforcing Mortar for Mineral Wool External Wall Insulation Slabs

CT190  Delivery Time: 2 - 3 days

A1-1347

Ceresit CT 190 mortar is designed to warm up external walls of the buildings by application of external thermal insulation composite system using mineral wool faade boards. It is an element within Ceresit Wool Classic insulation system. Ceresit CT 190 mortar is used for fixing of mineral wool faade ..

A1-1347
= m2
SALE!
Ceresit CT84 Express - Foam Adhesive for Internal and External Wall Insulation Boards

Ceresit CT84 Express - Foam Adhesive for Internal and External Wall Insulation Boards

CT84  show quantity discountsDelivery Time: In Stock 1-2 working days

£13.50 (£16.20 inc VAT)

£12.83 (£15.40 inc VAT)

£1.28/m2 (£1.54/m2 inc VAT)

show quantity discounts
A10-637

Ceresit CT84 Express is a one-component low expansion polyurethane adhesive for fixing an External Wall Insulation boards (Phenolic, PIR, Expanded Polystyrene) and also plasterboards in drylining. Approximately 2 hours after application, the insulation boards may be smoothed, anchored and, then the ..

£13.50 (£16.20 inc VAT)

£12.83 (£15.40 inc VAT)

£1.28/m2 (£1.54/m2 inc VAT)

show quantity discounts
A10-637
= m2
Ceresit CT87 White Adhesive-Filler Mortar '2 in 1'

Ceresit CT87 White Adhesive-Filler Mortar '2 in 1'

CT87  show quantity discountsDelivery Time: In Stock 1-2 working days

£25.00 (£30.00 inc VAT)

£5.00/m2 (£6.00/m2 inc VAT)

show quantity discounts
A10-634

Ceresit CT87 mortar is designed to insulate external walls of the buildings by application of external thermal insulation composite system using EPS- or mineral wool facade boards. It is an element of following ETICS from Ceresit Ceretherm Premium, Express and Wool Premium. CT 87 mortar is..

£25.00 (£30.00 inc VAT)

£5.00/m2 (£6.00/m2 inc VAT)

show quantity discounts
A10-634
= m2
Ceresit CT87 White Adhesive-Filler Mortar '2 in 1' - Pallet of 48 bags

Ceresit CT87 White Adhesive-Filler Mortar '2 in 1' - Pallet of 48 bags

Pallet of 48 bags  Delivery Time: In Stock 1-2 working days

£950.00 (£1,140.00 inc VAT)

£3.96/m2 (£4.75/m2 inc VAT)

A1-2738

Ceresit CT87 mortar is designed to insulate external walls of the buildings by application of external thermal insulation composite system using EPS- or mineral wool faade boards. It is an element of following ETICS from Ceresit Ceretherm Premium, Express and Wool Premium. CT 87 mortar is ..

£950.00 (£1,140.00 inc VAT)

£3.96/m2 (£4.75/m2 inc VAT)

A1-2738
= m2
Ceresit ZU Insulation and Mesh Adhesive (Base Coat Render)

Ceresit ZU Insulation and Mesh Adhesive (Base Coat Render)

ZU-25kg  show quantity discountsDelivery Time: 1 - 2 days

£16.00 (£19.20 inc VAT)

£3.20/m2 (£3.84/m2 inc VAT)

show quantity discounts
A10-635

Ceresit ZU is designed to insulate external walls of the buildings by application of external thermal insulation composite system using polystyrene boards. It is a component of following ETICS from Ceresit Ceretherm Premium, Express and Wool Premium. Ceresit ZU is used ..

£16.00 (£19.20 inc VAT)

£3.20/m2 (£3.84/m2 inc VAT)

show quantity discounts
A10-635
= m2
Ceresit ZU Insulation and Mesh Adhesive (Base Coat Render) - Pallet of 48 bags

Ceresit ZU Insulation and Mesh Adhesive (Base Coat Render) - Pallet of 48 bags

Pallet of 48 bags  Delivery Time: 1 - 2 days

£528.00 (£633.60 inc VAT)

£2.20/m2 (£2.64/m2 inc VAT)

A1-2736

Ceresit ZU is designed to insulate external walls of the buildings by application of external thermal insulation composite system using polystyrene boards. It is a component of following ETICS from Ceresit Ceretherm Premium, Express and Wool Premium. Ceresit ZU is used ..

£528.00 (£633.60 inc VAT)

£2.20/m2 (£2.64/m2 inc VAT)

A1-2736
= m2
Fibreglass Rendering Mesh Roll

Fibreglass Rendering Mesh Roll

1m x 50m (50m2)  show quantity discountsDelivery Time: 1 - 2 days

£39.80 (£47.76 inc VAT)

£0.80/m2 (£0.96/m2 inc VAT)

show quantity discounts
A10-327

Fiberglass reinforcing mesh is coated with acrylic acid copolymer liquid and is therefore water, alkali and age resistant. The mesh has high tensile strength, good dimensional stability, good elasticity, capillary action and corrosion resistance.CHARACTERISTICSExcellent stability, strength and cohes..

£39.80 (£47.76 inc VAT)

£0.80/m2 (£0.96/m2 inc VAT)

show quantity discounts
A10-327
= m2
ISO RG Insulation Washer for Soft Panels Pak of 100

ISO RG Insulation Washer for Soft Panels Pak of 100

ISO RG Soft  Delivery Time: 3 - 4 days

A1-1138

ISO RG Insulation Washer for Soft Panels is used for fixing soft insulation panels.  ..

A1-1138
ISO RG Screw Cover Cap Insulation Washer (pack of 100).

ISO RG Screw Cover Cap Insulation Washer (pack of 100).

ISO RG -61928060000 - Free Delivery  show quantity discountsDelivery Time: 1 - 2 days

£25.51 (£30.61 inc VAT)

show quantity discounts
A1-1137

Polypropylene ISO RG Screw Cover Cap Insulation Washer is used for fixing insulation panels and it has no thermal transmission due to the screw cover cap. Can be used with screws up to 6mm in diameter...

£25.51 (£30.61 inc VAT)

show quantity discounts
A1-1137
TD060 Nylon Support Disc for External Wall Insulation (pack of 100)

TD060 Nylon Support Disc for External Wall Insulation (pack of 100)

60mm - Free Delivery  Delivery Time: 1 - 2 days

£25.15 (£30.18 inc VAT)

A1-1901

TD060 Nylon Support Disc for Polystyrene, Mineral Wool and Lamella Mineral Wool external wall insulation, to be mounted with a galvanized steel screw. The disc has a stopper, which is used to plug the hole, covering the screw and preventing thermal bridging.CHARACTERISTICSImpact resistant nylon..

£25.15 (£30.18 inc VAT)

A1-1901
TDX90 Support Disc for Mineral Wool and Lamella Mineral Wool Insulation (pack of 100)

TDX90 Support Disc for Mineral Wool and Lamella Mineral Wool Insulation (pack of 100)

90mm  Delivery Time: 1 - 2 days

£12.00 (£14.40 inc VAT)

A1-1899

TDX90 Support Disc is a high impact resistant polyethylene 90mm diameter disc for fixing mineral wool and lamella mineral wool external wall insulation. The greater hold-down area of the disk prevents the anchor pulling through the strands of mineral wool and lamella boards. TDX90 is ..

£12.00 (£14.40 inc VAT)

A1-1899
other diameters
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