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LOFT INSULATION

LOFT ǀ ATTIC INSULATION

Loft insulation, called 'loft board' or 'loft roll' is essentially an insulating material that is built into your roof usually between or above the rafters and is not made to be compressed. In other words, it is a process of creating a barrier of insulating material within your loft. It can be built into the floor of your loft, between the joists, or in the beams that hold the roof up. Loft insulation comes in glass, mineral fiber, rolls of rock and foil-backed felt. If access is easy and your loft joists are regular, you can use rolls of mineral wool insulation. The first layer is laid between the joists – the horizontal beams that make up the floor of the loft  then another layer is laid at right angles to cover the joists and make the insulation up to the required depth. If you are planning to renew over 25% of your roof space, you must also ensure that your loft insulation meets the minimum values of the regulations. In 1995, the recommended depth was 200mm.

According to current building regulations recommended thickness for loft insulation should be at least 270mm. This figure can vary slightly, depending on the type of materials used – for example, the recommended depth for rock wool is 250mm, whilst for cellulose it’s just 220mm. By insulating your loft to the recommended depth of 270mm you can save wasted energy and money. All lofts in new build homes will have been designed to carry storage loads of 25kg per square metre plus the weight of a person walking in the loft (BS 6399-1:1996). Currently, the recommended R-value for attic insulation is between 6.1 and 7, a combination of thickness and conductivity. Knowing where you stand with the recommended R-value for attic insulation will ensure that you receive the right insulation for your home.

Loft insulation normally costs as of 2022 around £450 to £650. Moreover, attic insulation is qualified for government grants. Loft insulation grants are available to completely cover the cost of having insulation professionally installed by installers. If you are in receipt of a qualifying benefit, you should be entitled to a 100% free grant that does not need to be paid back. The Energy Saving Trust estimates that loft insulation remains a cost-effective way to make savings of up to £150 per year on your heating bills by preventing up to 25% of your home’s heat from escaping through the roof. If you plan to use the loft or attic for storage, you will want to lay boards over the joists. If you only insulate between the joists before doing this, the insulation won’t be thick enough. Don’t squash the mineral wool when you fit the boards on top, as this will reduce its insulation value. If your loft is hard to access, you can have blown insulation installed by a professional, who will use specialist equipment to blow appropriate insulation material into any awkward space. They may use mineral wool fibre, treated cellulose or polyurethane foam. Improving your loft insulation can improve the energy efficiency of your central heating system, and you can save a lot on your energy bills. Insulating your loft allows you to retain heat during the cold winter months, whereas in the summer you can keep your home nice and cool. As well as saving money, it also allows you to reduce your environmental impact.

TYPES OF LOFT INSULATION

Generally speaking, there are several types of loft insulation, depending on your needs. It can be divided into 5 main subcategories. Our selection includes both rolls and batts of insulation, as well as PIR rigid insulation board, loose-fill granules, slabs and foils. The insulation you choose for your loft will depend largely on the use you’re intending to make of the space. As well as any specific challenges the shape of your loft poses.

ROLLS AND BATTS

This is probably the most common, dirt cheap and non-combustible type of insulation used to insulate loft, however it’s itchy and gets everywhere with very little effort. If the insulation gets wet, you will need to replace it a soon as possible. To get decent thermal performance, you need a lot of insulation rolls which can quickly eat into your loft space. Roll insulation is the cheapest and most favored option for most common type of loft insulation and it is easy to fit between joists. The batts are simply rolled out and laid on the base of the loft. Also, it’s the easiest type to fit, which means it’s commonly used by DIYers wanting to insulate their lofts correctly in the most cost effective way possible. Blanket insulation is also the one that’s best used in conjunction with flagship Loft Legs, in order to create a solid and stable surface above the government recommended depth of insulation. 

LOOSE-FILL

Loose-fill insulation is exactly what it sounds like. It is made from a variety of granular or lightweight materials such as cellulose fiber, cork granules or mineral wool.

SLABS

Placing loft slabs is an easy process and is essential if you want both storage and for your quilt insulation to work at its optimum performance. With the correct products, such as Knauf Rocksilk RS45 or Rockwool RWA45 this is easy and cost effective too.

PIR BOARD

PIR board has good thermal values ranging from 0.022 W/mK. On other hand it’s extremely messy to install on the loft, you have to cut it to size to fit between rafters. Your project leaves you with lots of waste product and just generally takes a long time to get installation correct. This is one of the less common types of insulation. It’s significantly more expensive than other types of insulation.

LOFT FOIL

This is relatively new insulation to the market and offers multiple benefits such as being easy to install, high thermal performances, providing a radiant barrier and vapour control layer in 1 product, fully flexible, suitable for retrofit or new build and can be used in all application types such as loft and loft floors.

BEST LOFT INSULATION

There is always a debate on best performing loft insulation, but it mostly depends upon the nature and structure of the loft. However, the best cost effective type of loft insulation is definitely the mineral or glass wool roll. If you consider the economic point and the fact that common spacing of UK rafters are 400mm or 600mm, loft roll is absolutely the best type of insulation that can be used to insulate loft. Rolls are 1200mm wide and ready-cut to produce three, 400mm wide rolls, or two, 600mm wide rolls and manufactured to a minimum density of 10kg/m3 meeting the requirements outlined within related Building Regulations. It in means you have no offcuts and you can insulate the loft yourself. Moreover, rolls work out cheaper therefore they become the most favoured option from all of available loft insulation types. This is one of the most popular type of insulation, mainly due to the fact it’s been around for so long and is widely available from most building merchants.

LOFT INSULATION MANUFACTURERS

We stock top loft insulation brands like Celotex, Knauf, Rockwool, Ursa, Low-E and Isover so you’ll get a high-quality product. Celotex offers its GA4000 range PIR firm boards in thicknesses ranging from 50mm to 100mm. On other hand Knauf is proud to announce its ECOSE® Technology. It is a unique bio-based binder which is used in the manufacture of all Knauf Glass Mineral Wool products and the majority of Rock Mineral Wool products. The Knauf Mineral Wool made with ECOSE® Technology contains no added formaldehyde or phenol. This means insulation generates very low levels of dust, increasing the comfort of those handling it. ECOSE® Technology makes insulation soft to touch and easy to handle. Moreover, it is made from natural raw materials that are rapidly renewable and is 70% less energy intensive to manufacture than traditional binders, so it is kinder to the environment too. Products manufactured using ECOSE® Technology have a natural brown colour so you can see, as well as feel the difference. Company offers Earthwool Loft Insulation Roll 44, Double Sided Foil RS45 and RS60 Rocksilk Insulation Slab Earthwool. Other top manufacturer such as Rockwool offer wide range of products that can be used to insulate your loft such as: ROCKWOOL FLEXI®, ROCKWOOL Cladding Roll, HARDROCK® MULTI-FIX (DD), RW3, RW5, RW6 and RWA45. All products achieve Euroclass A1 and are non-combustible. Isover company insulation rolls and slabs are manufactured from glass mineral wool to provide high levels of sound and thermal insulation on loft. Company top products are: ISOVER Acoustic Partition Roll (APR1200), ISOVER Spacesaver, ISOVER Metac, ISOVER Timber Frame Roll 32 and ISOVER RD Party Wall Roll.

 

LOFT INSULATION DO'S AND DON’TS

It’s a smart thought to know precisely the loft insulation dos and don’ts, as well as understanding the loft insulation rules and regulations too. When it comes to loft insulation dos and don’ts, the don’ts are particularly important to remember, as they mostly relate to saving you money.

DOS

-Do check your home’s existing insulation, particularly if your property is more than 10 years old.
-Do install only insulation that meets the regulations set out by the government.
-Do consider foam insulation if your loft is small or awkwardly shaped.
-Do research for the cheapest place for loft insulation 'near me'.
-Do shop around. While shops such as Srewfix, B&Q or Wickes offer good deals, online insulation shops can offer better deal. It is because products come to you directly from the manufacturer or seller without involving middlemen.

DON'TS

-Don’t underestimate the savings that you could experience on your energy bills by installing loft insulation in your home.
-Don’t try to do the job yourself - this is a professional product, and requires a professional installers.
-Don’t ignore the loft insulation regulations regarding aspects of quality and thickness.
-Don’t use insulation materials that have not been approved for use in lofts.
-Don’t lay loft insulation over electrical cables.
-Don't go for a cheaper alternative.
-Don't carry out loft insulation yourself.

Video credit:https://www.youtube.com/watch?v=fCZ5_hXTAWU

 

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Brand: Knauf® Model: 100mm Knauf Loft Roll 44
100mm Knauf Earthwool Loft Roll 44 Combi-Cut is a flexible highly-durable non-combustible glass mineral wool loft insulation roll manufactured using Knauf ECOSE Technology with Euroclass A1 reaction to fire classification used for insulation between and over the joists in cold lofts where pitched ro..
  • Non-combustible
  • Over joists Insulation
  • Between joists Insulation
  • Reaction to Fire Euroclass A1
  • Highly durable, Odourless, Rot proof, Non-hygroscopic
£ 62.54
Ex Tax:£ 52.12
Estimated delivery: 3-5 working days
Brand: URSA® Model: 100mm URSA 10
100mm URSA 10 Diverso Loft Insulation Roll is a lightweight easy to install, non-combustible, unfaced glass mineral wool loft insulation roll used as a loft insulation in cold pitched roofs. URSA 10 Glass Mineral Wool Insulation Roll 100mm is perforated to allow it to be split into either 2 x 570..
  • Non-combustible
  • Over joists Insulation
  • Between joists Insulation
  • Reaction to Fire Euroclass A1
  • Highly durable, Odourless, Rot proof, Non-hygroscopic
£ 59.17
Ex Tax:£ 49.31
Estimated delivery: 3-5 working days
Brand: Promat® Model: 12.7mm - 800
12.7mm Promat MONOLUX 800 (MST 800) is a robust low thermal conductivity rigid fire protection board specifically formulated without asbestos and mineral fibres for use in constructions and insulation linings. Monolux 800 High Performance Fire Protection Board is a tough and durable, resistant to..
  • Monolux 800 - providing up to 240 minutes Fire Resistance
  • MST-800 - 1000°C - Easy to Decorate with Paints, Wallpapers or Tiles
  • Suitable for Plants and single skin Insulation in Ovens and Dryers
  • Resistant to Moisture and Chemicals - Asbestos FREE - Non-combustible
  • Ducts & Services Protection, Fire Door, Heat Shields, Single Skin Partitions
£ 553.01
Ex Tax:£ 460.84
Estimated delivery: 7-10 working days
Brand: Promat® Model: 12.7mm
12.7mm Promat MONOLUX 500 Fire Board (MST 500) is a robust low thermal conductivity rigid fire protection board specifically formulated without asbestos and mineral fibres for use in constructions and insulation linings. Monolux 500 High Performance Fire Protection Board 12.7mm is a tough and dur..
  • Easy to Decorate with Paints, Wallpapers or Tiles
  • Monolux 500 - providing up to 240 minutes Fire Resistance
  • Suitable for Plants and single skin Insulation in Ovens and Dryers
  • Resistant to Moisture and Chemicals - Asbestos FREE - Non-combustible
  • Ducts & Services Protection, Fire Door, Heat Shields, Single Skin Partitions
£ 399.02
Ex Tax:£ 332.52
Estimated delivery: 3-5 working days
Brand: Promat® Model: 12.7mm PROMATECT-MST
12.7mm Promat PROMATECT®-MST Fire Resistant Board is a rigid non-combustible insulation board specifically formulated without asbestos and mineral fibres used as a thermal break in process plants and as single skin insulation in ovens and dryers. Fire Protection Board Promatect-MST 12.7mm is an e..
  • Promat PROMATECT®-MST A1 Fire Resistant Board 12.7mm
  • Effective and stable fire insulation solution for demanding applications
  • Good rigidity properties even when exposed to high temperatures of 1000ºC
  • Rigid fire insulation board with up to 240 minutes fire resistance (protection)
  • Load bearing pipe support, heat shield, thermal break and furnace bottom board
£ 592.99
Ex Tax:£ 494.16
Estimated delivery: 3-5 working days
Brand: Novia® Model: 15mm Butyl Tape
15mm Novia Double-Sided Butyl Tape is a high-quality sealing tape designed for Vapour Control Layer (VCL) installation. This 22.5m long polyisobutylene based tape is economical and non-toxic solution. Butyl tape is easy to install, tools are not required for application. For use in applicat..
  • Vital for airtight installations
  • Very good adhesion properties
  • for Vapour Control Layer installation
  • Use in conjunction with Novia Metallised BOPP tape
£ 20.46
Ex Tax:£ 17.05
Estimated delivery: 2-3 working days
Brand: Promat® Model: 20mm
20mm Promat Fire Board PROMATECT L500 is a special non-combustible low density calcium silicate fire insulation board, used for the construction of fire resistant ducts, cladding of sheet metal ducts and to provide fire rated cable and service enclosures. Promat L500 PROMATECT 20mm is off white i..
  • A1 Non-Combustible - Calcium Silicate Fire Protection Board
  • To provide Fire Rated Cable and Service Enclosures
  • Fire Protection (Resistance to Fire): 30-240minutes
  • PROMATECT - Fire Resistant Ducts, Cladding of Sheet Metal Ducts
  • Promat-L500 is resistant to the Moisture (damp or humid conditions)
£ 424.09
Ex Tax:£ 353.41
Estimated delivery: 3-5 working days
Brand: Knauf® Model: 25mm RS45 Black Foil Faced x2 Sides
25mm Black Foil Faced Two Sides Knauf RS45 Slab is a semi rigid rock mineral wool black foil backed on both sides insulation slab with an excellent class A1 fire performance. Knauf RS45 Black foil backed on both sides slab provides outstanding fire, thermal and acoustic performance for both new b..
  • 25mm Black Foil Faced x2 Sides Knauf RS45 Insulation Slab A1 Class
  • Class ‘O’ to the Building Regulations and Class A1 fire performance
  • Density of 45kg/m3 with an excellent thermal and acoustic properties
  • Provides from 30 up to 240 minutes of fire protection (x2 Foil Faced RS45)
  • Double Sides Black Foil Faced Slab accumulates heat on one side of the slab
£ 624.00
Ex Tax:£ 520.00
Estimated delivery: 5-7 working days
Brand: Knauf® Model: 25mm RS60 Black Foil Faced x2 Sides
25mm Knauf RS60 Black Foil Backed Two Sides Slab is an insulation solution specially designed for concrete soffits, an A1 class non-combustible rock mineral wool slab. Black foil backed and faced 60kg density insulation slab is less visible than the silver foil which is handy specially during the..
  • 25mm Black Foil Faced x2 Sides Knauf RS60 Insulation Slab A1 Class
  • Class ‘O’ to the Building Regulations and Class A1 fire performance
  • Density of 60kg/m3 with an excellent thermal and acoustic properties
  • Provides from 30 up to 240 minutes of fire protection (x2 Foil Faced RS60)
  • Double Sides Black Foil Faced Slab accumulates heat on one side of the slab
£ 399.00
Ex Tax:£ 332.50
Estimated delivery: 5-7 working days
Brand: Knauf® Model: 25mm RS45 Black Foil Faced x1
25mm Black Foil Faced Knauf Rocksilk RS45 Insulation Slab is a non-combustible rock mineral wool black foil backed insulation slab with an excellent class A1 fire performance. Knauf RS45 1200mm x 600mm x 25mm black foil backed slab provides outstanding fire, thermal and acoustic performance for b..
  • 25mm Black Foil Faced Knauf Rocksilk RS45 Insulation Slab A1 Class
  • Class ‘O’ to the Building Regulations and Class A1 fire performance
  • Density of 45kg/m3 with an excellent thermal and acoustic properties
  • Provides from 30 up to 240 minutes of fire protection (Foil Faced RS45)
  • Black Foil Faced Insulation Slab accumulates heat on one side of the board
£ 527.88
Ex Tax:£ 439.90
Estimated delivery: 5-7 working days
Brand: Knauf® Model: 25mm RS60 Black Foil Faced x1
25mm Aluminium Black Foil Backed Knauf RS60 60kg Slab is a rigid class A1 non-combustible rock mineral wool insulation slab faced with a reinforced black aluminium foil. The black aluminium foil faced insulation slab accumulates heat on one side of the board, unlike the aluminium silver foil that..
  • 25mm Black Foil Faced Knauf Rocksilk RS60 Insulation Slab A1 Class
  • Class ‘O’ to the Building Regulations and Class A1 fire performance
  • Density of 60kg/m3 with an excellent thermal and acoustic properties
  • Provides from 30 up to 240 minutes of fire protection (Foil Faced RS60)
  • Black Foil Faced Insulation Slab accumulates heat on one side of the board
£ 389.88
Ex Tax:£ 324.90
Estimated delivery: 5-7 working days
Brand: Knauf® Model: RS60 Black Tissue x2 (25mm)
Knauf RS60 Black Tissue Faced 2 Sides Insulation Slab is a 25mm thick fire and acoustic rock mineral wool insulation slab, used for providing fire resistance and thermal insulation for roofs, concrete car park soffits and similar applications. Rocksilk RS60 Slab (25mm x 600mm x 1200mm) faced with..
  • 30mm Knauf RS60 Black Tissue Faced 2 Sides A1 Insulation Slab
  • Density 60kg/m3 Thermal conductivity (lambda) of 0.034W/mK
  • Provides from 30 minutes up to 240 minutes fire protection
  • Class A1 Non-combustible Rock Mineral Wool Insulation Slab
  • Used for structural elements such as concrete car park soffits
£ 417.96
Ex Tax:£ 348.30
Estimated delivery: 3-5 working days
Brand: Knauf® Model: Black Tissue x2 - 25mm RS45
Black Tissue Faced 2 Sides Knauf Rocksilk RS45 Insulation Slab is a 25mm thick rock mineral wool based, class A1 non-combustible insulation slab, used for structural elements such as roofs, concrete car park soffits and similar applications. The black tissue facings on two sides helps to avoid th..
  • 25mm Black Tissue Faced 2 Sides Knauf RS45 Insulation Slab
  • Class A1 Non-combustible Rock Mineral Wool Insulation Slab
  • Provides from 30 minutes up to 240 minutes fire protection
  • Density 45kg/m3 Thermal conductivity (lambda) of 0.035W/mK
  • Used for structural elements such as concrete car park soffits
£ 438.71
Ex Tax:£ 365.59
Estimated delivery: 3-5 working days
Brand: Knauf® Model: 25mm RS45 Black Tissue x1
25mm Black Tissue Faced Knauf RS45 Insulation Slab is a rock mineral wool based, class A1 non-combustible insulation slab, used for structural elements such as roofs, concrete car park soffits and similar applications. Rocksilk RS45 is a high-efficiency insulation slab with a certified lambda val..
  • 25mm Black Tissue Faced Knauf Rocksilk RS45 Insulation Slab A1
  • Class A1 Non-combustible Rock Mineral Wool Insulation Slab
  • Provides from 30 minutes up to 240 minutes fire protection
  • Density 45kg/m3 Thermal conductivity (lambda) of 0.035W/mK
  • Used for structural elements such as concrete car park soffits
£ 365.44
Ex Tax:£ 304.53
Estimated delivery: 3-5 working days
Brand: Rockwool® Model: Double Sided Foil RW5 - 25mm
25mm Double Sided Aluminum Foil Slab Rockwool RW5 (100kg) is a foil faced on both sides stone wool resin bonded slab developed to prevent the spread of flames and inhibit heat and smoke through concealed spaces in buildings. Rockwool RW5 Foil Faced Two Sides Fire Barrier Slab 25mm x 600mm x 1200m..
  • 25mm Double Sided Foil Faced Fire Slab Rockwool RW5
  • 100kg density - Foil Faced on Both Sides Fire Barrier Slab
  • Developed to prevent the spread of flames and inhibit heat
  • Conform with the Building Regulations Approved Document B
  • Excellent fire performance classified as Euroclass A1 | Class 'O'
£ 246.07
Ex Tax:£ 205.06
Estimated delivery: 7-10 working days
Brand: Knauf® Model: 25mm Two Foil Faced RS45
25mm Foil Faced on Both Sides Rocksilk RS45 Knauf Fire Insulation Slab is a standard density (45kg/m3) non-combustible rock mineral wool two-sided foil-faced slab with a great fire performance (Class A1) suitable for use in multiple applications. Knauf RS45 1200mm x 600mm x 25mm double sided alum..
  • FOIL FACED BOTH SIDES Slab - FFx2
  • Class ‘O’ to the Building Regulations - Euroclass A1
  • Density: 45kg/m3 - Excellent thermal and acoustic properties
  • Class 1 Surface Spread of Flame - Non-combustible - Odourless, Rot Proof, Non-Hygroscopic
  • Durability: do not sustain vermin and will not encourage the growth of fungi, mould or bacteria.
£ 750.60
Ex Tax:£ 625.50
Estimated delivery: 5-7 working days
Brand: Rockwool® Model: Double Sided Foil RW3 - 25mm
25mm Foil Backed Double Sided Insulation Slab RW3 (11.52m²/pack) is an aluminium foil faced on both sides stone wool resin bonded slab developed to prevent the spread of flames and inhibit heat and smoke through concealed spaces in buildings. Rockwool RW3 Foil Faced Two Sides Fire Barrier Slab 25..
  • Double Sided Foil Facing Fire Slab Rockwool RW3 - 25mm
  • Aluminium Foil Faced on Both Sides Fire Barrier Slab
  • Developed to prevent the spread of flames and inhibit heat
  • Conform with the Building Regulations Approved Document B
  • Excellent fire performance classified as Euroclass A1 | Class 'O'
£ 506.36
Ex Tax:£ 421.97
Estimated delivery: 3-5 working days
Brand: Rockwool® Model: Foil Faced 1 Side RW5 - 25mm
25mm Foil Faced 1 Side Fire Insulation Slab Rockwool RW5 is a high performance foil faced fire and acoustic stone wool core insulation slab used where fire resistant walls need to be continued above a ceiling into the roof void. Rockwool RW5 Foil Backed Slab is an A1 class, non-combustible alumin..
  • 25mm Foil Faced 1 Side Insulation Slab Rockwool RW5
  • 100kg density - Foil Faced on One Side Fire Barrier Slab
  • Developed to prevent the spread of flames and inhibit heat
  • Conform with the Building Regulations Approved Document B
  • Excellent fire performance classified as Euroclass A1 | Class 'O'
£ 258.20
Ex Tax:£ 215.17
Estimated delivery: 5-7 working days
Brand: Rockwool® Model: 25mm Foil Faced RW3
25mm Foil Faced Fire Slab Rockwool RW3 (11.52m² / pack) is a high performance foil faced fire and acoustic stone wool core insulation slab developed to prevent the spread of flames and inhibit heat and smoke through concealed spaces in buildings. Rockwool RW3 Foil Faced Slabs (60kg per m3) are si..
  • Rockwool RW3 Foil Faced Fire Slab 25mm (60kg/m3)
  • Aluminium foil faced fire and acoustic stone wool slab
  • Developed to prevent the spread of flames and inhibit heat
  • Conform with the Building Regulations Approved Document B
  • Great fire performance classified as Euroclass A1 | Class 'O'
£ 545.76
Ex Tax:£ 454.80
Estimated delivery: 3-5 working days
Brand: Knauf® Model: 25mm Foil Faced RS100
25mm Foil Faced Rocksilk RS100 Knauf Insulation Slab is a high-density (100kg/m3) non-combustible rock mineral wool foil backed rigid insulation slab with a great fire performance classified as Euroclass A1, suitable for use in multiple applications. Knauf RS100 1200mm x 600mm aluminium foil slab..
  • FOIL FACED Slab - Odourless, Rot Proof, Non-Hygroscopic
  • Class ‘O’ to the Building Regulations - Euroclass A1
  • Density: 100kg/m3 Excellent thermal and acoustic properties
  • Class 1 Surface Spread of Flame - Non-combustible
  • Fire, thermal and acoustic performance.
£ 404.63
Ex Tax:£ 337.19
Estimated delivery: 7-10 working days
Brand: Knauf® Model: 25mm Foil Faced RS45
25mm Foil Faced Rocksilk RS45 Knauf Insulation Slab is a standard density (45kg/m3) non-combustible rock mineral wool foil backed building slab with a great fire performance classified as Euroclass A1, suitable for use in multiple applications. Knauf RS45 1200mm x 600mm foil backed slab provides ..
  • FOIL FACED Slab - Odourless, Rot Proof, Non-Hygroscopic
  • Class ‘O’ to the Building Regulations - Euroclass A1
  • Density: 45kg/m3 - Excellent thermal and acoustic properties
  • Class 1 Surface Spread of Flame - Non-combustible
  • Durability: do not sustain vermin and will not encourage the growth of fungi, mould or bacteria.
£ 498.44
Ex Tax:£ 415.37
Estimated delivery: 5-7 working days
Brand: Knauf® Model: 25mm Foil Faced RS60
25mm Foil Faced Rocksilk RS60 Knauf Insulation Slab is a medium density (60kg/m3) non-combustible rock mineral wool foil backed building slab with a great fire performance classified as Euroclass A1, suitable for use in multiple applications. Knauf RS60 1200mm x 600mm aluminium foil insulation sl..
  • FOIL FACED Slab - Odourless, Rot Proof, Non-Hygroscopic
  • Class ‘O’ to the Building Regulations - Euroclass A1
  • Density: 60kg/m3 - Excellent thermal and acoustic properties
  • Class 1 Surface Spread of Flame - Non-combustible
  • Non-combustible foil faced insulation slab - Multiple applications
£ 315.19
Ex Tax:£ 262.66
Estimated delivery: 7-10 working days
Brand: Knauf® Model: 25mm Two Foil Faced RS100
25mm Foil Faced on Both Sides Rocksilk RS100 Knauf Insulation Slab is a high-density (100kg/m3) non-combustible rock mineral wool foil-faced two-sides rigid insulation slab with a great fire performance (Class A1) suitable for use in multiple applications. Knauf RS100 1200mm x 600mm aluminium foi..
  • FOIL FACED BOTH SIDES Slab - FFx2
  • Class ‘0’ to the Building Regulations Euroclass A1
  • Density: 100kg/m3 Excellent thermal and acoustic properties
  • Class 1 Surface Spread of Flame Non-combustible
  • Provides excellent fire, thermal and acoustic performance.
£ 589.85
Ex Tax:£ 491.54
Estimated delivery: 7-10 working days
Brand: Knauf® Model: 25mm Two Foil Faced RS60
25mm Foil Faced on Both Sides Rocksilk RS60 Knauf Fire Insulation Slab is a medium density (60kg/m3) non-combustible rock mineral wool foil-faced two-sides slab with a great fire performance (Class A1) suitable for use in multiple applications. Knauf RS60 1200mm x 600mm aluminium foil insulation ..
  • FOIL FACED BOTH SIDES Slab - FFx2
  • Class ‘0’ to the Building Regulations - Euroclass A1
  • Density: 60kg/m3 Excellent thermal and acoustic properties
  • Class 1 Surface Spread of Flame - Non-combustible
  • Durability: will not encourage the growth of fungi, mould or bacteria.
£ 512.32
Ex Tax:£ 426.93
Estimated delivery: 7-10 working days
Brand: Knauf® Model: 25mm RS45 White Tissue x2
White Tissue Faced 2 Sides Knauf RS45 Insulation Slab is a 25mm thick rock mineral wool based, class A1 non-combustible insulation slab, used for structural elements such as roofs and concrete car park soffits. 25mm Rocksilk RS45 is a standard density (45kg/m3) insulation slab with a certified th..
  • 25mm White Tissue Faced 2 Sides Knauf RS45 Insulation Slab
  • From 30 up to 240 minutes fire protection (1200x600x25mm slab)
  • Class A1 Non-combustible Rock Mineral Wool Insulation Slab
  • Density 45kg/m3 Thermal conductivity (lambda) of 0.035W/mK
  • Used for structural elements such as concrete car park soffits
£ 372.00
Ex Tax:£ 310.00
Estimated delivery: 3-5 working days
Brand: Knauf® Model: 25mm RS60 Black Tissue x1
25mm Knauf RS60 Black Tissue Faced Insulation Slab is an acoustic rock mineral wool based, class A1 non-combustible insulation slab, used for structural elements such as roofs, concrete car park soffits and similar applications. Knauf Rocksilk RS60 is a medium density (60kg/m3) insulation slab wi..
  • Black Tissue Faced Knauf Rocksilk RS60 Insulation Slab A1 (25mm)
  • Density 60kg/m3 Thermal conductivity (lambda) of 0.034W/mK
  • Class A1 Non-combustible Rock Mineral Wool Insulation Slab
  • Provides from 30 minutes up to 240 minutes fire protection
  • Used for structural elements such as concrete car park soffits
£ 363.55
Ex Tax:£ 302.96
Estimated delivery: 3-5 working days
Brand: Knauf® Model: 25mm RS60
25mm Rocksilk RS60 (Rock Mineral Wool Slab) Knauf Insulation Building Slab is a medium density (60kg/m3) non-combustible rock mineral wool unfaced slab designed for use in multiple applications with a great fire performance classified as Euroclass A1, which is the highest fire rating for non-combust..
  • Class 1 Surface Spread of Flame - Non-combustible
  • Class ‘O’ to the Building Regulations - Euroclass A1
  • Density: 60kg/m3 - Excellent thermal and acoustic properties
  • Unfaced Slab - Odourless, Rot Proof, Non-Hygroscopic
  • Durability: will not encourage the growth of fungi, mould or bacteria.
£ 72.64
Ex Tax:£ 60.53
Estimated delivery: 7-10 working days
Brand: Knauf® Model: 25mm Rocksilk RS100
25mm Rocksilk RS100 Knauf (Rock Mineral Wool) Insulation Building Slab is a high-density (100kg/m3) non-combustible rock mineral wool unfaced rigid slab designed for use in multiple applications with a great fire performance classified as Euroclass A1, which is the highest fire rating for non-combus..
  • Class 1 Surface Spread of Flame - Non-combustible
  • Class ‘0’ to the Building Regulations - Euroclass A1
  • Density: 100kg/m3 Excellent thermal and acoustic properties
  • Unfaced Slab - Odourless, Rot Proof, Non-Hygroscopic
  • Rigid Non-combustible Unfaced Fire Rated A1 Insulation Slab
£ 87.38
Ex Tax:£ 72.82
Estimated delivery: 7-10 working days
Brand: Knauf® Model: 25mm Rocksilk RS45
25mm Rocksilk RS45 Knauf Rock Mineral Wool Insulation Slab is a standard density (45kg/m3) non-combustible rock mineral wool building slab designed for use in multiple applications with a great fire performance classified as Euroclass A1, which is the highest fire rating for non-combustible material..
  • Class 1 Surface Spread of Flame - Non-combustible
  • Class ‘O’ to the Building Regulations - Euroclass A1
  • Density: 45kg/m3 - Excellent thermal and acoustic properties
  • Unfaced Slab - Odourless, Rot Proof, Non-Hygroscopic
  • Do not sustain vermin and will not encourage the growth of fungi, mould or bacteria.
£ 60.49
Ex Tax:£ 50.41
Estimated delivery: 5-7 working days
Brand: Rockwool® Model: 25mm White Tissue x2
25mm White Tissue Faced 2 Sides Rockwool Rockwool RW3 is a highly-durable class A1 fire resistant resin bonded wool insulation slab, used for structural elements such as roofs, concrete car park soffits and similar applications. An unique white tissue facings on both sides helps to avoid the slab..
  • 25mm Rockwool RW3 White Tissue Faced 2 Sides Insulation Slab
  • Strong A1 class, non-combustible fire resistant resin bonded slab
  • Provides from 30 minutes up to 240 minutes fire protection
  • Density 60kg/m3 Thermal conductivity (lambda) of 0.034 W/mK
  • For structural elements such as roofs, concrete car park soffits
£ 310.80
Ex Tax:£ 259.00
Estimated delivery: 3-5 working days
Brand: Rockwool® Model: 25mm White Tissue x1
25mm White Tissue Faced 1 Side Rockwool RW3 is a strong A1 class, non-combustible fire resistant resin bonded wool insulation slab, used for structural elements such as roofs, concrete car park soffits and similar applications. This individual white tissue facing helps to avoid the slab edges fro..
  • 25mm Rockwool RW3 White Tissue Faced 1 Side Insulation Slab
  • Strong A1 class, non-combustible fire resistant resin bonded slab
  • Provides from 30 minutes up to 240 minutes fire protection
  • Density 60kg/m3 Thermal conductivity (lambda) of 0.034 W/mK
  • For structural elements such as roofs, concrete car park soffits
£ 265.20
Ex Tax:£ 221.00
Estimated delivery: 3-5 working days
Brand: Rockwool® Model: 25mm RW5 Black Tissue x2
25mm Black Tissue Faced Both Sides RW5 is a highly durable A1 class, non-combustible fire resistant resin bonded stone wool insulation slab, used for structural elements such as concrete car park soffits and similar applications. Black Tissue Faced Both Sides Rockwool RW5 (Formerly ProRox® SL 960..
  • 25mm Rockwool RW5 Black Tissue Faced 2 Sides A1 Soffit Slab
  • Provides from 30 minutes up to 240 minutes fire protection
  • Used for structural elements such as concrete car park soffits
  • A1 class, non-combustible fire resistant stone wool insulation slab
  • RW5 Formerly ProRox® SL9 60 Thermal conductivity of 0.034W/mK
£ 269.88
Ex Tax:£ 224.90
Estimated delivery: 3-5 working days
Brand: Rockwool® Model: 25mm RW5 Black Tissue x1
25mm Black Tissue Faced Rockwool RW5 is a highly durable A1 class, non-combustible fire resistant resin bonded stone wool insulation slab, used for structural elements such as concrete car park soffits and similar applications. Rockwool RW5 Insulation Slab 25mm x 600mm x 1200mm with black tissue ..
  • 25x600x1200mm Rockwool RW5 Black Tissue Faced Slab A1
  • Formerly ProRox® SL960 Thermal conductivity of 0.034W/mK
  • Used for structural elements such as concrete car park soffits
  • A1 class, non-combustible fire resistant stone wool insulation slab
  • Provides from 30 minutes up to 240 minutes fire protection
£ 216.00
Ex Tax:£ 180.00
Estimated delivery: 3-5 working days
Brand: Rockwool® Model: 25mm White Tissue x2
25mm White Tissue Faced 2 Sides Rockwool RWA45 is a strong non-combustible fire resistant resin bonded wool insulation slab, used for structural elements such as roofs, concrete car park soffits and similar applications. White Tissue Faced Two Sides RWA45 (Formerly ProRox® SL 920) is a standard d..
  • 25mm Rockwool RWA45 White Tissue Faced Two Sides Slab x2
  • Semi-rigid, A1 non-combustible fire resistant insulation slab
  • Provides from 30 minutes up to 240 minutes fire protection
  • Density 45kg/m3 Thermal conductivity (lambda) of 0.035W/mK
  • Used for structural elements such as concrete car park soffits
£ 276.24
Ex Tax:£ 230.20
Estimated delivery: 3-5 working days
Brand: Rockwool® Model: 25mm White Tissue x1
25mm White Tissue Faced Rockwool RWA45 is a tough A1 class, non-combustible fire resistant resin bonded wool insulation slab, used for structural elements such as roofs, concrete car park soffits and similar applications. Rockwool RWA45 Insulation Slab 25x600x1200mm faced with white tissue on 1 s..
  • 25mm Rockwool RWA45 White Tissue Faced One Side Slab x1
  • Semi-rigid, A1 non-combustible fire resistant insulation slab
  • Provides from 30 minutes up to 240 minutes fire protection
  • Density 45kg/m3 Thermal conductivity (lambda) of 0.035W/mK
  • Used for structural elements such as concrete car park soffits
£ 253.56
Ex Tax:£ 211.30
Estimated delivery: 3-5 working days
Brand: Knauf® Model: 25mm RS100 Black Tissue x1
25mm Knauf RS100 Insulation Slab Black Tissue Faced One Side is a rigid A1 class, non-combustible fire resistant insulation slab, used for structural elements such as roofs, concrete car park soffits and similar applications. Knauf Rocksilk RS100 is a high density (100kg/m3) insulation slab with ..
  • 25mm Knauf RS100 Black Tissue Faced 1 Side Insulation Slab A1
  • High density 100kg/m3 Thermal conductivity (lambda) 0.034W/mK
  • Class A1 Non-combustible Rock Mineral Wool Insulation Slab
  • Provides from 30 minutes up to 240 minutes fire protection
  • Used for structural elements such as concrete car park soffits
£ 388.67
Ex Tax:£ 323.89
Estimated delivery: 3-5 working days
Brand: Knauf® Model: 25mm RS100 White Tissue x1
White Tissue Faced 1 Side Knauf RS100 Insulation Board 25mm is a rigid fire, thermal and acoustic class A1 insulation slab, used for structural elements such as roofs, concrete soffits and similar applications. Rocksilk RS100 is a high density (100kg/m3) insulation slab with a certified thermal c..
  • 25mm Knauf RS100 White Tissue Faced 1 Side Insulation Slab - 100kg
  • From 30 up to 240 minutes fire protection (1200x600x25mm slab)
  • Class A1 Non-combustible Rock Mineral Wool Insulation Slab
  • Density 100kg/m3 Thermal conductivity (lambda) of 0.034W/mK
  • Used for structural elements such as concrete car park soffits
£ 342.00
Ex Tax:£ 285.00
Estimated delivery: 3-5 working days
Brand: Knauf® Model: 25mm RS45 White Tissue x1
25mm White Tissue Faced 1 Side Knauf RS45 Insulation Slab is a rock mineral wool based, class A1 non-combustible insulation slab, used for structural elements such as roofs, concrete car park soffits and similar applications. The white tissue facing on one side helps to avoid the slab edges from ..
  • White Tissue Faced Knauf RS45 Insulation Slab 25x600x1200mm
  • Class A1 Non-combustible Rock Mineral Wool Insulation Slab
  • Provides from 30 minutes up to 240 minutes fire protection
  • Density 45kg/m3 Thermal conductivity (lambda) of 0.035W/mK
  • Used for structural elements such as concrete car park soffits
£ 311.88
Ex Tax:£ 259.90
Estimated delivery: 3-5 working days
Brand: Rockwool® Model: 25mm RW3 Black Tissue x2
25mm RW3 Double Sided Black Tissue Faced Soffit Slab is a thermal, fire and acoustic insulation slab particularly suited for providing fire resistance and thermal insulation through concrete car park soffits and similar applications. Black Tissue Faced Both Sides Rockwool RW3 (Formerly ProRox® SL..
  • Black Tissue Faced 2 Sides 25mm Insulation Slab Rockwool RW3
  • Soffit Slab for providing fire resistance and thermal insulation
  • Used for structural elements such as concrete car park soffits
  • A1 class, non-combustible fire resistant stone wool insulation slab
  • Provides from 30 minutes up to 240 minutes fire protection
£ 303.80
Ex Tax:£ 253.17
Estimated delivery: 3-5 working days
Brand: Rockwool® Model: 25mm RW3 Black Tissue x1
25mm Rockwool RW3 Black Tissue Faced Soffit Slab is a strong rigid, 60kg density non-combustible fire resistant resin bonded stone wool insulation slab, used for structural elements such as concrete car park soffits. Black Tissue Faced Rockwool RW3 (Formerly ProRox® SL 930) is a medium-density 60..
  • 25mm Rockwool RW3 Black Tissue Faced Insulation Slab A1
  • A1, non-combustible fire resistant resin bonded stone wool
  • Provides from 30 minutes up to 240 minutes fire protection
  • Density 60kg/m3 Thermal conductivity (lambda) of 0.034W/mK
  • Used for structural elements such as concrete car park soffits
£ 258.54
Ex Tax:£ 215.45
Estimated delivery: 3-5 working days
Brand: Rockwool® Model: 25mm RW3
25mm Rockwool RW3 Acoustic Insulation Slab (Prorox SL930) is a robust, medium-density (60kg/m3) non-combustible resin bonded semi-rigid fire resistant insulation slab designed for use in floors, roofs at rafter level, partitions, ceilings, timber and steel frame walls. Using RW3 Insulation in cei..
  • RW3 is rated Euroclass A1 non-combustible
  • Excellent thermal, acoustic and fire performance
  • RW3 insulation slabs achieve Lambda 0.034W/mK
  • RW3 is a robust insulation solution for a range of general building applications
  • Durable insulation solution which will maintain high performance over the lifetime of the building
£ 75.46
Ex Tax:£ 62.88
Estimated delivery: 5-7 working days
Brand: Rockwool® Model: 25mm RW5
25mm Rockwool RW5 Slab Acoustic, Fire and Thermal Insulation (Prorox SL960) is a strong, high-density (100kg/m3) non-combustible resin bonded rigid fire resistant insulation slab designed for use in floors, roofs at rafter level, partitions, ceilings, timber and steel frame walls. Using Rockwool ..
  • RW5 is rated Euroclass A1 non-combustible
  • Excellent thermal, Acoustic (100kg density) and fire performance
  • Rockwool RW5 insulation slabs achieve Lambda 0.034W/mK
  • RW5 is a robust insulation solution for a range of general building applications
  • Durable insulation solution which will maintain high performance over the lifetime of the building
£ 56.69
Ex Tax:£ 47.24
Estimated delivery: 5-7 working days
Brand: Rockwool® Model: 25mm White Tissue x1
25mm White Tissue Faced 1 Side Rockwool RW5 is a rigid A1 class, non-combustible fire resistant resin bonded stone wool insulation slab, used for structural elements such as roofs, concrete car park soffits and similar applications. The white tissue facing on one side helps to avoid the slab edge..
  • 25mm White Tissue Faced 1 Side Rockwool RW5 Insulation Slab
  • High-density 100kg/m3 and an excellent sound absorbing qualities
  • Provides from 30 minutes up to 240 minutes fire protection
  • Certified thermal conductivity (lambda value) of 0.034 W/mK
  • For structural elements such as roofs, concrete car park soffits
£ 246.00
Ex Tax:£ 205.00
Estimated delivery: 3-5 working days
Brand: Rockwool® Model: 25mm RWA45
25mm Rockwool RWA45 Acoustic Insulation Slab (Prorox SL920) is a robust, standard density (45kg/m3) non-combustible resin bonded semi-rigid fire resistant insulation slab designed for use in floors, roofs at rafter level, partitions, ceilings, steel and timber frame walls. Using RWA45 Acoustic In..
  • RWA45 is rated Euroclass A1 non-combustible
  • Excellent thermal, acoustic and fire performance
  • RWA45 insulation slabs achieve Lambda 0.035W/mK
  • RWA45 is a robust insulation solution for a range of general building applications
  • Durable insulation solution which will maintain high performance over the lifetime of the building
£ 60.56
Ex Tax:£ 50.47
Estimated delivery: 5-7 working days
Brand: Rockwool® Model: 25mm Black Tissue x2
25mm Black Tissue Faced 2 Sides Insulation Slab Rockwool RWA45 is an A1 class, non-combustible fire resistant resin bonded stone wool insulation slab, used for structural elements such as concrete car park soffits. Rockwool RWA45 Insulation Slab 25x600x1200mm with black tissue on 2 sides can prov..
  • Black Tissue Faced 2 Sides 25mm Rockwool RWA45 Insulation Slab
  • Class A1, non-combustible fire resistant resin bonded stone wool slab
  • Density of 45kg/m3 and thermal conductivity (lambda) of 0.035W/mK
  • Black tissue on 2 sides can provide from 30min up to 240min fire protection
  • For structural elements such as concrete car park soffits and similar applications
£ 322.78
Ex Tax:£ 268.98
Estimated delivery: 3-5 working days
Brand: Knauf® Model: 25mm RS60 White Tissue 2 Sides
25mm Knauf RS60 White Tissue Faced 2 Sides Insulation Slab is a robust A1 non-combustible slab, used as a fire, thermal and acoustic insulation for structural elements such as roofs and concrete car park soffits. Rocksilk RS60 is a medium density (60kg/m3) insulation slab with a certified thermal..
  • 25mm Knauf RS60 White Tissue Faced 2 Sides Soffit Insulation Slab
  • RS60 can provide from 30 minutes up to 240 minutes fire protection
  • Class A1 Non-combustible Rock Mineral Wool Core Insulation Slab
  • Density 60kg/m3 Thermal conductivity (lambda value) of 0.034W/mK
  • Used for structural elements such as roofs and concrete car park soffits
£ 375.07
Ex Tax:£ 312.56
Estimated delivery: 3-5 working days
Brand: Rockwool® Model: 25mm White Tissue x2
25mm RW5 White Tissue Faced Two Sides Slab is a 100kg/m3 density insulation slab faced with white tissue on both sides, used as a fire resistant, acoustic and thermal insulation for roofs, concrete car park soffits and similar applications. This special white tissue facings on both sides helps to..
  • Rockwool RW5 White Tissue Faced 2 Sides Insulation Slab 25mm
  • Robust A1 class, non-combustible fire resistant resin bonded slab
  • Provides from 30 minutes up to 240 minutes fire protection
  • Density 100kg/m3 Thermal conductivity (lambda) of 0.034 W/mK
  • For structural elements such as roofs, concrete car park soffits
£ 300.00
Ex Tax:£ 250.00
Estimated delivery: 3-5 working days
Brand: Knauf® Model: 30mm Knauf RS140
The 30mm Knauf RS140 is a rock mineral wool insulation slab with an excellent class A1 fire rating to BS EN 13501-1 used in multiple thermal and acoustic applications where 140kg/m3 density is critical. RS140 Rocksilk is manufactured with a density of 140kg/m3, designed for use in a variety of ap..
  • 30mm x 600mm x 1200mm Knauf Rocksilk RS140 (140kg/m3)
  • Class A1 Non-combustible Rigid Rock Mineral Wool Insulation Slab
  • Fire, thermal and acoustic insulation slab used for building applications
  • Manufactured in 140kg density per m3 - Class ‘0’ to Building Regulations
  • Used in floors, roofs at rafter level, partitions, ceiling, timber & steel frame
£ 182.70
Ex Tax:£ 152.25
Estimated delivery: 7-10 working days
Brand: Rock