Flat Roof Insulation

  • Glass faced PIR boards
  • Mineral wool slabs
  • PIR boards with plywood
  • Warm deck insulation
  • For single ply or built-up

KNAUF, ROCKWOOL, CELOTEX, XTRATHERM, CELLECTA


The type of insulation used in a new flat roof is dependent on the roof specification. On a new concrete slab, with a screed, semi-rigid insulation boards such as expanded polystyrene board, extruded polystyrene board, glass fibre batts, mineral fibre batts, urethane foam board or phenolic foam board are laid under the roof covering. In a new timber structure, glass fibre quilt and mineral fibre quilt can be laid between the joists. In case of an existing flat roof, insulation can be increased externally with extruded polystyrene or foamed glass, or internally with an insulated lining board such as mineral fibre or polyurethane foambacked plaster-board.

Three choices are available for insulating a flat roof depending on the roof specification:
  • Cold roof
  • Warm roof
  • inverted roof

It is essential to understand the difference between those specifications to be able to install insulation in the right place to create a vapour barrier in the right area and prevent rotting of the roof joists.

Warm roof

A warm roof is when the insulation spans across the top of all the joists; it must be continuous and span over every joist. This means that any air rising from underneath would make the void between the joists warm hence a ‘warm roof’.

Cold roof

In a cold roof the insulation is put at the bottom of the joists or below the joists. This way sufficient ventilation is maintained which allows air to circulate above the insulation (below the roof). The void above the insulation should be at least 50mm thick. In this case the decking with the roof on it, which is above the joists, would be cold hence a ‘cold roof’.

Common mistake in the roof specification is when the insulation is installed inside the joists (close to the top part of the joists). This makes the roof neither cold nor warm, creating the void below the insulation. In this case there is no ventilation which makes the whole roof ‘sweat’ and causes the joists to rot.

Inverted roof

The inverted roof concept which is also known as protected membrane or upside down roofing. This method ensures insulating both the water proofing membrane and the reinforced concrete slab from extreme thermal stress. This is achieved by placing an extruded polystyrene thermal insulation board above, instead of below the waterproofing membrane and can be used for insulating flat topped buildings or balconies, retail or office developments, flats, hospitals, airports, hotels and residential housing in areas where roof is exposed to high temperatures.

Insulationshop.co offers a wide range of high density flat roof insulation from manufacturers such as Xtratherm, Celotex, Knauf, Kay Metzeler, Cellecta and more. For more information about particular products please see product description.



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59mm Plydeck Xtratherm (PIR with OSB Board)

59mm Plydeck Xtratherm (PIR with OSB Board)

2400x1200 - 2.88m2  Delivery Time: 1 - 2 days

Guide Price: £49.51 (£59.41 inc VAT)

£17.19/m2 (£20.63/m2 inc VAT)

Due to nationwide shortage of PIR insulation lead time may be longer for this product.

Xtratherm Plydeck is a composite insulated panel of Xtratherm Polyisocyanurate core with a composite foil face, bonded to 9mm OSB board. The Xtratherm Plydeck provides a high level of thermal insulation and decking in one application.APPLICATION Plydeck is designed to provide high levels of thermal..

Guide Price: £49.51 (£59.41 inc VAT)

£17.19/m2 (£20.63/m2 inc VAT)

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other thicknesses
50mm Flat Roof Insulation Board Xtratherm FR-BGM (pack of 10)

50mm Flat Roof Insulation Board Xtratherm FR-BGM (pack of 10)

1200x600mm - 7.2m2  show quantity discountsDelivery Time: 3 - 5 days

Guide Price: £63.49 (£76.19 inc VAT)

£8.82/m2 (£10.58/m2 inc VAT)

show quantity discounts
Due to nationwide shortage of PIR insulation lead time may be longer for this product.

50mm Xtratherm FR-BGM is a PIR insulation board that is faced with a fleece finished bitumen/glass facers and is suitable for use below partially bonded bitumen based built up roofing systems. FR-BGM is suitable to apply torch on felt directly on the insulation. FR-BGM can also be used in mecha..

Guide Price: £63.49 (£76.19 inc VAT)

£8.82/m2 (£10.58/m2 inc VAT)

show quantity discounts
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other thicknesses
50mm Xtratherm Flat Roof Board FR-MG (pack of 10)

50mm Xtratherm Flat Roof Board FR-MG (pack of 10)

1200x600mm - 7.2m2  show quantity discountsDelivery Time: 1 - 2 days

Guide Price: £62.28 (£74.74 inc VAT)

£8.65/m2 (£10.38/m2 inc VAT)

show quantity discounts
Due to nationwide shortage of PIR insulation lead time may be longer for this product.

Xtratherm FR-MG is a mineral coated glass faced board. Xtratherm XT/FR MG boards should be laid over the vapour control layer in a break bonded pattern. The long edges of the boards should be laid at right angles to the direction of the substrate and all edges must be fully supported by the deck. ..

Guide Price: £62.28 (£74.74 inc VAT)

£8.65/m2 (£10.38/m2 inc VAT)

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other thicknesses
56mm Kingspan Thermaroof TR31 PIR bonded to Plywood (pack of 20)

56mm Kingspan Thermaroof TR31 PIR bonded to Plywood (pack of 20)

1200x2400 - 57.60m2  show quantity discountsDelivery Time: 3 - 5 days

£954.74 (£1,145.69 inc VAT)

£16.58/m2 (£19.90/m2 inc VAT)

show quantity discounts
Due to nationwide shortage of PIR insulation lead time may be longer for this product.

56mm Kingspan Thermaroof  TR31 is the flat roof insulation comprising a high performance rigid PIR thermoset insulation core faced with an FSC certified 6 mm nominal thickness WBP exterior grade plywood on its upper surface and a low emissivity composite foil facing on its lower surface. T..

£954.74 (£1,145.69 inc VAT)

£16.58/m2 (£19.90/m2 inc VAT)

show quantity discounts
= m2
other thicknesses
96mm Recticel Plylok PIR Flat Roof Insulation Board

96mm Recticel Plylok PIR Flat Roof Insulation Board

1200x2400mm - 2.88m2  show quantity discountsDelivery Time: 2 - 3 days

Guide Price: £64.11 (£76.93 inc VAT)

£22.26/m2 (£26.71/m2 inc VAT)

show quantity discounts
Due to nationwide shortage of PIR insulation lead time may be longer for this product.

96mm Recticel Plylok PIR Flat Roof Insulation Board is a rigid PIR board consisted of a few bonded elements contributing to its thermal performance and rigidity. The closed cell rigid PIR foam core is faced on both sides with multi-layer aluminium foil and bonded to 6mm WBP plywood. It is espec..

Guide Price: £64.11 (£76.93 inc VAT)

£22.26/m2 (£26.71/m2 inc VAT)

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other thicknesses
96mm EcoTherm Eco-Deck - Insulated Flat Roof Decking

96mm EcoTherm Eco-Deck - Insulated Flat Roof Decking

1200x2400mm - 2.88m2  show quantity discountsDelivery Time: 2 - 3 days

Guide Price: £55.41 (£66.49 inc VAT)

£19.24/m2 (£23.09/m2 inc VAT)

show quantity discounts
Due to nationwide shortage of PIR insulation lead time may be longer for this product.

96mm EcoTherm Eco-Deck is a tough, structural, pre-insulated thermal composite board for flat roofs. It comprises a 90mm thick fibre free polyisocyanurate (PIR) insulation core faced with 6mm thick tough, exterior grade plywood and is ready to fix and finish using basic tools and traditional roofing..

Guide Price: £55.41 (£66.49 inc VAT)

£19.24/m2 (£23.09/m2 inc VAT)

show quantity discounts
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other thicknesses
12mm Celotex TB4000 PIR Insulation Board

12mm Celotex TB4000 PIR Insulation Board

1200x2400mm - 2.88m2  show quantity discountsDelivery Time: 2 - 3 days

£11.44 (£13.73 inc VAT)

£3.97/m2 (£4.76/m2 inc VAT)

show quantity discounts
Due to nationwide shortage of PIR insulation lead time may be longer for this product.

Celotex TB4012 is targeted at ‘cut-to-fit’ applications between rafters or joists and enables users to achieve lower U-values with a single layer of insulation than has previously been possible. TB4012 is also appropriate for use in floors and walls. With low emissivity foil facings, TB4012 is manuf..

£11.44 (£13.73 inc VAT)

£3.97/m2 (£4.76/m2 inc VAT)

show quantity discounts
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other thicknesses
50mm Celotex Crown-Fix Flat Roof Board (pack of 24) - pallet of 2 packs

50mm Celotex Crown-Fix Flat Roof Board (pack of 24) - pallet of 2 packs

2400x1200mm - 138.24m2  Delivery Time: 3 - 5 days

£1,423.04 (£1,707.65 inc VAT)

£10.29/m2 (£12.35/m2 inc VAT)

Due to nationwide shortage of PIR insulation lead time may be longer for this product.

50mm Celotex Crown-Fix is a brand new product for use in flat roof systems. Representing the next phase of Celotex innovation, Crown-Fix is a high performance rigid polyisocyanurate (PIR) insulation which delivers excellent dimensional stability and added robustness in a mechanically fixed single pl..

£1,423.04 (£1,707.65 inc VAT)

£10.29/m2 (£12.35/m2 inc VAT)

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other thicknesses
50mm Celotex Crown-Bond Flat Roof Board (pack of 11) -pallet of 12 packs

50mm Celotex Crown-Bond Flat Roof Board (pack of 11) -pallet of 12 packs

1200x600mm - 95.04m2  Delivery Time: 3 - 5 days

Due to nationwide shortage of PIR insulation lead time may be longer for this product.

50mm Celotex Crown-Bond is a brand new product for use in flat roof systems. Representing the next phase of Celotex innovation, Crown-Bond is a high performance rigid polyisocyanurate (PIR) insulation which delivers cutting edge thinness, increased dimensional stability and added robustness in a bon..

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100mm Celotex Crown-Up Flat Roof Board - pack of 6 - pallet of 12 packs

100mm Celotex Crown-Up Flat Roof Board - pack of 6 - pallet of 12 packs

1200x600mm - 51.84m2  show quantity discountsDelivery Time: 3 - 5 days

£1,078.96 (£1,294.75 inc VAT)

£20.81/m2 (£24.97/m2 inc VAT)

show quantity discounts
Due to nationwide shortage of PIR insulation lead time may be longer for this product.

100mm Celotex Crown-Up is a brand new product for use in flat roof systems. Representing the next phase of Celotex innovation, Crown-Up is a high performance rigid polyisocyanurate (PIR) insulation which delivers increased dimensional stability and added robustness in a built-up flat roofing system...

£1,078.96 (£1,294.75 inc VAT)

£20.81/m2 (£24.97/m2 inc VAT)

show quantity discounts
= m2
other thicknesses
110mm Celotex XR4000 PIR Insulation Board

110mm Celotex XR4000 PIR Insulation Board

2400x1200mm - 2.88m2  show quantity discountsDelivery Time: 1 - 2 days

Guide Price: £41.17 (£49.40 inc VAT)

£14.30/m2 (£17.16/m2 inc VAT)

show quantity discounts
Due to nationwide shortage of PIR insulation lead time may be longer for this product.

Celotex XR4110 is targeted at ‘cut-to-fit’ applications between rafters or joists and enables users to achieve lower U-values with a single layer of insulation than has previously been possible. XR4110 is also appropriate for use in floors and walls. With low emissivity foil facings, XR4110 is manuf..

Guide Price: £41.17 (£49.40 inc VAT)

£14.30/m2 (£17.16/m2 inc VAT)

show quantity discounts
= m2
other thicknesses
50mm Celotex GA4000 PIR Insulation Board

50mm Celotex GA4000 PIR Insulation Board

2400x1200mm - 2.88m2  show quantity discountsDelivery Time: 1 - 2 days

£19.81 (£23.77 inc VAT)

£6.88/m2 (£8.26/m2 inc VAT)

show quantity discounts
Due to nationwide shortage of PIR insulation lead time may be longer for this product.

50mm Celotex GA4050 is a multi-purpose insulation board that provides solution to overcome from the localized thermal bridges problem. Featuring a low emissivity foil facings, this board has been manufactured from tough polyisocyanurate (PIR) by using a perfect mix of certain blowing agent..

£19.81 (£23.77 inc VAT)

£6.88/m2 (£8.26/m2 inc VAT)

show quantity discounts
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other thicknesses
25mm Celotex FR5000 Fire Resistant PIR Insulation Board (pack of 16)

25mm Celotex FR5000 Fire Resistant PIR Insulation Board (pack of 16)

1200x2400mm - 46.08m2  Delivery Time: 3 - 5 days

Due to nationwide shortage of PIR insulation lead time may be longer for this product.

Celotex FR5025 is one of the available dimensions of the Celotex FR5000 PIR insulation boards made from polyisocyanurate rigid core and faced on both side with low emissivity aluminum foils for improved thermal performance. The product is applicable to different types of constructions incl..

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100mm Kingspan Thermaroof TR24 - (pack of 5)

100mm Kingspan Thermaroof TR24 - (pack of 5)

1200x600mm - 3.60m2  show quantity discountsDelivery Time: 3 - 5 days

Guide Price: £67.14 (£80.57 inc VAT)

£18.65/m2 (£22.38/m2 inc VAT)

show quantity discounts
Due to nationwide shortage of PIR insulation lead time may be longer for this product.

100mm Kingspan Thermaroof TR24 is a rigid insulation board used for flat roof insulation, consisting of a rigid thermoset insulation core, covered with a glass tissue coated with bitumen. Its upper surface is finished with a thermofusible polypropylene fleece, while the lower surface is covered with..

Guide Price: £67.14 (£80.57 inc VAT)

£18.65/m2 (£22.38/m2 inc VAT)

show quantity discounts
= m2
other thicknesses
25mm Kingspan Thermaroof TR26 (pack of 12)

25mm Kingspan Thermaroof TR26 (pack of 12)

2400x1200mm - 34.56m2  show quantity discountsDelivery Time: 3 - 5 days

£245.03 (£294.04 inc VAT)

£7.09/m2 (£8.51/m2 inc VAT)

show quantity discounts
Due to nationwide shortage of PIR insulation lead time may be longer for this product.

25mm Kingspan Thermaroof TR26 is a high performance, fibre free, rigid thermoset PIR insulation core faced on both sides with a low emissivity composite foil facing which is used for insulating flat roofs and is fully compatible with most mechanically fixed single–ply waterproofing systems and ..

£245.03 (£294.04 inc VAT)

£7.09/m2 (£8.51/m2 inc VAT)

show quantity discounts
= m2
other thicknesses
25mm Kingspan Thermaroof TR27 (pack of 12)

25mm Kingspan Thermaroof TR27 (pack of 12)

25mm TR27 - 8.64m2  show quantity discountsDelivery Time: 3 - 5 days

£55.62 (£66.74 inc VAT)

£6.44/m2 (£7.73/m2 inc VAT)

show quantity discounts
Due to nationwide shortage of PIR insulation lead time may be longer for this product.

25mm Kingspan Thermaroof TR27 is a PIR insulation board made from highly effective rigid PIR core faced with coated glass tissue on both sides added during manufacturing. The product offers substantial durability and long life span depending on the condition of the supporting structure. Th..

£55.62 (£66.74 inc VAT)

£6.44/m2 (£7.73/m2 inc VAT)

show quantity discounts
= m2
other thicknesses
25mm Kooltherm K7 Pitched Roof Board Kingspan (pack of 12)

25mm Kooltherm K7 Pitched Roof Board Kingspan (pack of 12)

K7 2400x1200 - 34.56m2  show quantity discountsDelivery Time: 3 - 5 days

£243.89 (£292.67 inc VAT)

£7.06/m2 (£8.47/m2 inc VAT)

show quantity discounts

25mm Kingspan Kooltherm K7 Pitched Roof Board is the rafter/joist level insulation comprising a premium performance rigid thermoset phenolic insulation core faced on both sides with a low emissivity composite foil facing. This reflective, low emissivity surface improves the thermal resista..

£243.89 (£292.67 inc VAT)

£7.06/m2 (£8.47/m2 inc VAT)

show quantity discounts
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other thicknesses
30mm Kingspan Styrozone H350R Flat Roof XPS Board (pack of 14)

30mm Kingspan Styrozone H350R Flat Roof XPS Board (pack of 14)

1250x600mm - 10.50m2  show quantity discountsDelivery Time: 3 - 5 days

£74.38 (£89.26 inc VAT)

£7.08/m2 (£8.50/m2 inc VAT)

show quantity discounts

Kingspan Styrozone H350R Flat Roof XPS Board is highly effective rigid insulation board made from extruded polystyrene core covered with smooth skin on both sides. It is especially designed for protected membrane flat roofs, but is also used in green roofs as a popular alternative to tradi..

£74.38 (£89.26 inc VAT)

£7.08/m2 (£8.50/m2 inc VAT)

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Kingspan Aquazone - Water Infiltration Reduction Membrane for Inverted Roofs

Kingspan Aquazone - Water Infiltration Reduction Membrane for Inverted Roofs

3m x 100m - 300m2  Delivery Time: 3 - 5 days

£441.00 (£529.20 inc VAT)

£1.47/m2 (£1.76/m2 inc VAT)

Kingspan Aquazone is a high performance non-woven polyethylene membrane suitable for use on inverted roofs finished with gravel ballast, green roof systems and concrete pavers on appropriate supports. Kingspan Aquazone can can dramatically minimise the cooling effect associated with rainwater f..

£441.00 (£529.20 inc VAT)

£1.47/m2 (£1.76/m2 inc VAT)

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25mm Earthwool RS45 Universal Insulation Slab Knauf (pack of 20)

25mm Earthwool RS45 Universal Insulation Slab Knauf (pack of 20)

1200x600 - 14.4m2  show quantity discountsDelivery Time: 2 - 3 days

Guide Price: £30.78 (£36.94 inc VAT)

£2.14/m2 (£2.57/m2 inc VAT)

show quantity discounts

25mm Earthwool RS45 Universal Slabs are unfaced, rock mineral wool slabs, available in a range of densities from 33 to 200 kg/m3. The standard product is supplied unfaced, but slabs can also be manufactured with a factory applied foil or tissue facing and are also available with a water repellent ad..

Guide Price: £30.78 (£36.94 inc VAT)

£2.14/m2 (£2.57/m2 inc VAT)

show quantity discounts
= m2
other thicknesses
50mm Earthwool RS60 Universal Insulation Slab Knauf (pack of 9)

50mm Earthwool RS60 Universal Insulation Slab Knauf (pack of 9)

1200x600 - 6.48m2  show quantity discountsDelivery Time: 1 - 2 days

Guide Price: £30.78 (£36.94 inc VAT)

£4.75/m2 (£5.70/m2 inc VAT)

show quantity discounts

Earthwool RS60 Universal Slabs are unfaced, rock mineral wool slabs, available in a range of densities from 33 to 200 kg/m3. The standard product is supplied unfaced, but slabs can also be manufactured with a factory applied foil or tissue facing and are also available with a water repellent additiv..

Guide Price: £30.78 (£36.94 inc VAT)

£4.75/m2 (£5.70/m2 inc VAT)

show quantity discounts
= m2
other thicknesses
50mm Earthwool RS100 Universal Insulation Slab Knauf (pack of 6)

50mm Earthwool RS100 Universal Insulation Slab Knauf (pack of 6)

1200x600 - 4.32m²  show quantity discountsDelivery Time: 2 - 3 days

Guide Price: £26.19 (£31.43 inc VAT)

£6.06/m2 (£7.27/m2 inc VAT)

show quantity discounts

50mm Earthwool Universal Slabs are unfaced, rock mineral wool slabs, available in a range of densities from 33 to 200 kg/m3. The standard product is supplied unfaced, but slabs can also be manufactured with a factory applied foil or tissue facing and are also available with a water repellent additiv..

Guide Price: £26.19 (£31.43 inc VAT)

£6.06/m2 (£7.27/m2 inc VAT)

show quantity discounts
= m2
other thicknesses
50mm Earthwool Flexible Insulation Slab Knauf (pack of 12)

50mm Earthwool Flexible Insulation Slab Knauf (pack of 12)

1200x600 - 8.64m²  show quantity discountsDelivery Time: 2 - 3 days

£35.83 (£43.00 inc VAT)

£4.15/m2 (£4.98/m2 inc VAT)

show quantity discounts

50mm Earthwool Flexible is a non-combustible, inorganic rock mineral wool slab, used for thermal and acoustic insulation and specifically designed for installation by friction fitting. Earthwool Flexible is odourless, non-hygroscopic, rot proof, does not sustain vermin and will not encourage th..

£35.83 (£43.00 inc VAT)

£4.15/m2 (£4.98/m2 inc VAT)

show quantity discounts
= m2
other thicknesses
25mm EcoTherm EcoVersal PIR Insulation Board

25mm EcoTherm EcoVersal PIR Insulation Board

1200x2400mm - 2.88m2  Delivery Time: 1 - 2 days

Due to nationwide shortage of PIR insulation lead time may be longer for this product.

25mm Eco-Versal is a foil faced universal solution for insulating walls, floors, pitched roofs, dormer cheeks and ceilings. It is ideal for insulating timber frame walls and can also be used to insulate solid walls internally. EcoTherm Eco-Versal comprises a fibre free rigid polyisocyanurate (PIR) i..

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60mm Rockwool Hardrock Multi-Fix (Dual Density ) Fleece Faced Board (pallet of 20)

60mm Rockwool Hardrock Multi-Fix (Dual Density ) Fleece Faced Board (pallet of 20)

1200x1000 - 24.00m2  Delivery Time: 3 - 5 days

Guide Price: £252.21 (£302.65 inc VAT)

£10.51/m2 (£12.61/m2 inc VAT)

60mm Rockwool Hardrock Multi-Fix Dual Density Fleece Faced Boards are manufactured from renewable volcanic stone which produces a non-combustible roofing insulation board. A uniquely versatile solution suitable for all roof covering types - torch, pour and roll, single ply, EPDM, liquid applied a..

Guide Price: £252.21 (£302.65 inc VAT)

£10.51/m2 (£12.61/m2 inc VAT)

= m2
other thicknesses
30mm Rockwool RW3 Slab (Prorox SL930) - pack of 15

30mm Rockwool RW3 Slab (Prorox SL930) - pack of 15

1200x600mm - 10.8m2  show quantity discountsDelivery Time: 3 - 5 days

Guide Price: £26.69 (£32.03 inc VAT)

£2.47/m2 (£2.96/m2 inc VAT)

show quantity discounts

30mm Rockwool RW3 Slab (Prorox SL 930) is a semi-rigid resin bonded slab, providing great thermal, acoustic and fire resistance, designed to be used in various applications in floors, walls and roofs, including special applications in industrial buildings for insulation of  ships, offshore plat..

Guide Price: £26.69 (£32.03 inc VAT)

£2.47/m2 (£2.96/m2 inc VAT)

show quantity discounts
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50mm Rockwool RW5 Universal Insulation Slab (Prorox SL960) - pack of 4

50mm Rockwool RW5 Universal Insulation Slab (Prorox SL960) - pack of 4

RW5 50mm - 2.88m2  show quantity discountsDelivery Time: 2 - 3 days

£20.09 (£24.11 inc VAT)

£6.98/m2 (£8.38/m2 inc VAT)

show quantity discounts

50mm Rockwool RW5 (Prorox SL960) is a high quality resin bonded Slab for a wide range of thermal, acoustic and fire insulation requirements both within buildings and for industry. They are suitable for many applications including thermal insulation for floors, walls, roofs and boiler rooms. The stru..

£20.09 (£24.11 inc VAT)

£6.98/m2 (£8.38/m2 inc VAT)

show quantity discounts
= m2
other thicknesses
50mm Rockwool Flexi Insulation Slab 1200mm x 600mm (pack of 12)

50mm Rockwool Flexi Insulation Slab 1200mm x 600mm (pack of 12)

1200x600mm - 8.64m2  show quantity discountsDelivery Time: 1 - 2 days

£28.05 (£33.66 inc VAT)

£3.25/m2 (£3.90/m2 inc VAT)

show quantity discounts

50mm Rockwool Flexi Insulation Slab is a semi-rigid thermal and acoustic insulation product made from volcanic rock, thus extremely durable, fire resistant and applicable to various constructions including walls, partitions, roofs and floors. It comes with an innovative flexible edge on one s..

£28.05 (£33.66 inc VAT)

£3.25/m2 (£3.90/m2 inc VAT)

show quantity discounts
= m2
other thicknesses
25mm Rockwool RWA45 Slab (Prorox SL920) - pack of 16

25mm Rockwool RWA45 Slab (Prorox SL920) - pack of 16

600x1200mm - 11.52m²  show quantity discountsDelivery Time: 1 - 2 days

£19.11 (£22.93 inc VAT)

£1.66/m2 (£1.99/m2 inc VAT)

show quantity discounts

25mm Rockwool RWA45 is a high quality resin bonded Flexible Slabs for a wide range of thermal, acoustic and fire insulation requirements both within buildings and for industry. They are suitable for many applications including thermal insulation for floors, walls, roofs and boiler rooms. The structu..

£19.11 (£22.93 inc VAT)

£1.66/m2 (£1.99/m2 inc VAT)

show quantity discounts
= m2
other thicknesses
50mm Rockwool Flexi Insulation Slab 1200 x 400mm (pack of 12)

50mm Rockwool Flexi Insulation Slab 1200 x 400mm (pack of 12)

1200x400mm - 5.76m2  show quantity discountsDelivery Time: 1 - 2 days

Guide Price: £20.21 (£24.25 inc VAT)

£3.51/m2 (£4.21/m2 inc VAT)

show quantity discounts

50mm Rockwool Flexi Insulation Slab is a semi-rigid thermal and acoustic insulation product made from volcanic rock, thus extremely durable, fire resistant and applicable to various constructions including walls, partitions, roofs and floors. It comes with an innovative flexible edge on one sid..

Guide Price: £20.21 (£24.25 inc VAT)

£3.51/m2 (£4.21/m2 inc VAT)

show quantity discounts
= m2
other thicknesses
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