Menu
Your Cart

TIMBER FRAME INTERNAL WALL INSULATION

TIMBER FRAME INSULATION

Timber-framed wall insulation is typically installed between the studs, this insulation can be PIR or glass mineral wool. The many benefits of timber frame construction have seen it become one of the most widely used construction methods in the UK today. In fact, modern methods of timber frame construction were introduced into the UK in the 1960’s and are fully accepted methods of building. For the contractor, timber framed construction reduces site work and allows fast completion. Its inherent advantages include pre-engineered quality, speed of construction and the sustainability of the raw material. In fact, timber frame walls generally provide better levels of thermal insulation than masonry walls of comparable thickness. However, the reduced mass of the wall means that any insulation material that is installed, needs to provide a higher level of acoustic performance to compensate. Moreover, a timber wall won't resist sound transmission as well as a block. The term 'timber frame insulation' typically describes well known brands such as Rockwool, Knauf, Celotex and Kingspan.

The 75mm thick walls are required for timber buildings that will be used all year round (75 x 47mm timbers). Treated timber is particularly useful for outdoor areas and areas of high moisture. Timber frame construction is used extensively for schools, hotels, offices, blocks or flats, therefore it needs to be acoustically well insulated. For those types of tasks, high density slabs are used. This insulation is often thick and very dense (>45kg/m3). They are known as the most versatile soundproofing absorbing materials on the market, designed specifically for use within new build and retrofit internal walls. Another available form of timber frame insulation is roll. Rolls are designed to fit between studs to close joints, reducing the potential for unwanted gaps and ensuring high levels of sound insulation. Acoustic insulation rolls simply create a barrier between your space and unwanted sounds. They are easier to install correctly than other insulants such as PIR rigid insulation boards because they adapt to any slight imperfections in the substrate and knit together, eliminating any air gaps. Soundproofing rolls are available in the following forms such as stone or glass mineral wool. Rolls are primarily designed for use in timber partition walls, new build and retrofit internal walls and floors, to offer specialist sound absorbing properties, roll products are also suitable for a wide range of applications including: separating walls, drylining systems, office, studio or home theater. Acoustic product straightforwardly absorbs sound waves and reduces vibration due to its density. Because of that, it promotes comfort and privacy, protecting people from ‘outside-to-inside’ noise such as traffic, and ‘inside-to-inside’ noise from neighbouring dwellings. The first step in the soundproofing installation process will be to add mass to the timber frame walls. An acoustic roll is excellent for use within plasterboard linings, it effectively reduces reverberation. It’s also the best choice if you’re covering a very uneven internal wall. Where you have a flat wall and easy access, then acoustic slabs are popular due to the fact they can be installed through simple friction fitting. Rockwool Acoustic insulation RWA45 is a particular favourite with customers – providing thermal insulation and fireproofing on top of its acoustic dampening credentials. 

TIMBER FRAME INSULATION SIZES

The spacing of the structure is strictly related to the dimensions of the gypsum board, i.e. 1200x2400. Generally speaking, studs should be placed at every 400 or 600mm. However, the industry standard of timber frame centre spacing is 600mm. Possibly for the reasons you should be looking for insulation with this particular width. However other 400mm centre spacing is also used in the UK. The only advantage for 400mm is a stronger structure otherwise is it better to have 600 mm centres.

600mm, more insulation, less thermal bridging, less metal studs, 600mm - living spaces and bedrooms
400mm, less insulation, more thermal bridging, stronger structure, 400mm - utility, kitchen or bathrooms

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 relevant sound related Building Regulations. Acoustic Insulation Rolls are available in various thicknesses covering 11m2, 15m2, 15.6m2, 24m2. Acoustic roll common thicknesses are 25mm, 50mm, 60mm, 75mm, 80mm and 100mm. Rockwool RWA, RW, Knauf RS or Terrawool TW range offer boards size 1200mm x 600mm, which makes them ideal for insulation of this type of structure. On the other hand rigid insulation boards such as Celotex, Xtratherm or Kingspan come standard size 2400mm x 1200mm. They can be easily cut to 2 x 600mm or 3 x 400mm widths to fit between studs. These high performance PIR insulation boards are designed for internal wall insulation applications and can help achieve excellent U-values with both sides faced with low emissivity composite foil facing. Either way, installing insulation boards will provide excellent acoustic performance and appropriate fire resistance within the wall cavity.

BEST TIMBER FRAME INSULATION | COSTS

If you consider the fact that common spacing of UK timber construction is 400mm or 600mm, acoustic roll is absolutely the best type of insulation that can be used to insulate your timber partition wall. Rolls are 1200mm wide and ready-cut to produce three, 400mm centre 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 means you have no offcuts and you can insulate the wall yourself. Moreover, rolls work out cheaper therefore they become the most favoured option from all of available internal wall insulation types. Insulation rolls normally cost as of 2022 around £25-27 per roll. That is why it is one of the most popular types of insulation, mainly due to the fact it’s been around for so long and is widely available from most building merchants such as Screwfix, B&Q or Wickes. Most popular timber frame roll turned out to be the 100mm Knauf Earthwool Combi-Cut 44 followed by 100mm ISOVER Spacesaver Glass Mineral Wool. If you are looking for the cheapest place for timber frame insulation, an online insulation shop is the way to go. It is because products come to you directly from the manufacturer without involving middlemen.


TIMBER FRAME INSULATION PRODUCTS

 

 

Related articles:


How to cut PIR rigid insulation boards

Thinnest Insulation Solution for Londoners

Debunking the top 3 myths about vapour barriers and foam rigid insulation

Quality Phenolic foam boards

Energy saver insulation. How to improve thermal insulation levels in your home?

Rigid insulation board bonded to plasterboard. How does it sound?

Internal wall insulation - is it risky?

Best loft roll insulation

Rockwool acoustic insulation slabs overview

Brand: Siniat Model: 12.5mm Siniat Weather Defence™
Siniat Weather Defence External Sheathing Board 12.5mm x 1200mm x 2400mm is a strong, moisture resistant A1 non-combustible exterior sheathing board faced with water repellent material that is compliant for structures above 18m in height. Weather Defence™ is a revolutionary facade external sheath..
  • 12.5mm Siniat GTEC Weather Defence™
  • Class ‘0’ to UK Building Regulations
  • A1 Non-combustible material (Fire Rated)
  • 2400mm x 1200mm External Sheathing Board
  • Revolutionary façade external sheathing board
£ 71.88
Ex Tax:£ 59.90
Estimated delivery: 3-5 working days
Brand: RCM® Model: 12.7mm Densglass
DensGlass A1 Fire Rated Sheathing Board 12.7mm is an A1 non-combustible external sheathing board that consists of a fibreglass mat with a gypsum core, designed to provide a high degree of protection from the elements in external cladding constructions. 12.7mm DensGlass Gold Sheathing Board is an ..
  • DensGlass Fibreglass Mat with a Gypsum Core
  • BBA Certified No.21/5958
  • Replaces traditional paper-faced sheathing
  • No breather membrane required!
  • Fire Rated Class A1, Non-combustible Board
£ 107.28
Ex Tax:£ 89.40
Estimated delivery: 3-5 working days
Brand: Cembrit Model: 12mm Cembrit PB
12mm Cembrit PB Permabase (UNIPAN) Cement Board is a fibreglass-mesh reinforced, lightweight, water-resistant cement board with tapered edges, used on external applications, such as rendering, brick slips or stone cladding. This rigid cement and aggregate based board incorporates polystyrene bead..
  • 12mm Cembrit PB Permabase UNIPAN Cement Board A1
  • External applications: rendering, brick slips or stone cladding
  • Tapered edges to facilitate invisible butt joint installation
  • Reinforced board with resistance to moisture and mould growth
  • A1 non-combustible reinforced, water-resistant fire rated cement board
£ 118.34
Ex Tax:£ 98.62
Estimated delivery: 5-7 working days
Brand: Kingspan® Model: 20mm Thermawall TW55
20mm Kingspan Thermawall TW55 Insulation Board is a rigid insulation board used between studs or as an insulating sheathing material for steel and timber framing wall applications. Thermawall TW55 Kingspan is a high performance insulation board suitable for use with timber frame and steel frame w..
  • Thermal conductivity of 0.022 W/mK
  • Easy to handle and install
  • BBA Certificate 14/5133
  • NSAI Agrément Certificate 03/0196
  • INSULATION FOR TIMBER AND STEEL FRAMING SYSTEMS
£ 46.19
Ex Tax:£ 38.49
Estimated delivery: 3-5 working days
Brand: Xtratherm® Model: 24.5mm XT/TL Mechanically Fixed
24.5mm Xtratherm Thin-R XT/TL-MF Thermal Liner Mech Fix is an insulated panel combined of PIR rigid insulation foam core bonded to 9.5mm plasterboard suitable for internal masonry walls, sloped rafters and ceilings. Xtratherm XT/TL-MF Mechanically Fixed Drylining Board is a highly versatile and d..
  • Provides Effective Vapour Control Layer
  • Reducing Energy Consumption and Costs
  • For a Variety of Wall Types - Internal Walls, Sloped Roofs, Ceilings
  • Insulation & Drylining in one Application - Refurbishment & New Build
  • XT/TL-MF is only suitable for mechanically fixed applications
£ 63.98
Ex Tax:£ 53.32
Estimated delivery: 3-5 working days
Brand: URSA® Model: 25mm APR
25mm URSA Acoustic Partition Insulation Roll APR is a lightweight non-combustible glass mineral wool insulation, offering high level of sound absorption and noise reduction in timber or metal framed internal partition walls, timber or metal framed separating walls and timber separating floors. UR..
  • Non-combustible
  • Reaction to Fire Euroclass A1
  • Density in excess of 22kg/m³
  • Sound Absorption and Noise Reduction
  • Highly-durable, Odourless, Rot proof, Non-hygroscopic
£ 75.71
Ex Tax:£ 63.09
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: 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: 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 APR
25mm Knauf Earthwool APR Acoustic Insulation Roll is a flexible and durable non-combustible glass mineral wool sound insulation roll which offers high level of sound absorption and noise reduction in internal wall, partitions and floor applications. Knauf APR Sound Insulation Roll 25mm is manufac..
  • Non-combustible
  • Reaction to Fire Euroclass A1
  • Density in excess of 10kg/m³
  • Sound Absorption & Noise Reduction Properties
  • Highly durable, Odourless, Rot proof, Non-hygroscopic
£ 84.90
Ex Tax:£ 70.75
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 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 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: Unilin Insulation (UK) known as Xtratherm Model: 27.5mm XT/TL-FR
27.5mm (28mm) XT/TL-FR is a fire resistant insulated plasterboard made of 15mm Unilin PIR foam insulation core bonded to 12.5mm fire plasterboard used in drylining applications where fire rating is crucial. Fire Resistant Insulated Plasterboard with a Pink Paper Face offers 30 minutes fire protec..
  • 27.5mm (28mm) XT/TL-FR Fire Resistant Insulated Plasterboard
  • Fire plasterboard used in drylining applications where fire rating is crucial
  • Pink Paper Front Face offers 30 minutes fire protection in a single layer
  • Provides an effective vapour control layer (integral vapour barrier build in)
  • FR Insulated Plasterboard can be readily cut using a sharp knife or fine toothed saw
£ 116.36
Ex Tax:£ 96.97
Estimated delivery: 3-5 working days
Brand: Unilin Insulation (UK) known as Xtratherm Model: 27.5mm Unilin XT/TL-MR
27.5mm Unilin XT/TL-MR is a moisture resistant insulated plasterboard made of 15mm Unilin PIR foam insulation core bonded to 12.5mm moisture resistant plasterboard used in high humidity conditions. Unilin XT/TL-MR Moisture Resistant Insulation Board improves moisture resistance and thermal perfor..
  • 27.5mm (28mm) Unilin XT/TL-MR Moisture Resistant Insulated Plasterboard
  • For high humidity conditions - kitchens, bathrooms, toilets, walls and ceilings
  • Provides an effective vapour control layer (integral vapour barrier build in)
  • MR Insulated Plasterboard can be readily cut using a sharp knife or fine toothed saw
  • Strong Moisture Resistant Paperliners - Water Repellent Kraft Facings
£ 113.99
Ex Tax:£ 94.99
Estimated delivery: 3-5 working days
Brand: Xtratherm® Model: 27.5mm XT/TL MR
27.5mm Xtratherm XT/TL-MR Thermaliner PIR Moisture Resistant is an insulated plasterboard combined of PIR insulation core bonded to 12.5mm moisture resistant plasterboard designed for internal building areas of high humidity conditions. XT/TL-MR Thermal Liner Unilin is designed to improve moistur..
  • Provides Effective Vapour Control Layer
  • Improving Moisture Resistance and Thermal Performance
  • Applications: Kitchen and Bathroom Walls and Ceiling Installations...
  • Insulation & Drylining in one Application - Refurbishment & New Build
  • Strong Moisture Resistant Paperliners - Water Repellent
£ 113.99
Ex Tax:£ 94.99
Estimated delivery: 3-5 working days
Brand: IKO Enertherm® Model: 30mm IKO ALU
30mm IKO Enertherm ALU PIR Insulation Board is a multi-functional insulation board with a rigid polyisocyanurate foam core, clad on both sides with a multi-layer gas-tight aluminium construction. IKO PIR Insulation Board 30mm can be used on flat roofs, pitch roofs, loft floors, cavity walls, clad..
  • Multi-functional PIR Insulation Board
  • BBA approved Polyisocyanurate Insulation
  • Thermal Conductivity: 0.022 W/mk
  • 100% CFC, HCFC or HFC-free
  • BBA Agrément Certificate No 15/5283
£ 42.00
Ex Tax:£ 35.00
Estimated delivery: 2-3 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: Rockwool® Model: 30mm Rockwool RW6 140kg
30mm Rockwool RW6 (140kg) is a rigid class A1 non-combustible resin bonded insulation slab with an excellent fire, thermal and acoustic properties used for a wide range of building applications. Rockwool RW6 Slab is manufactured in 140kg density per cubic meter (140kg/m3), specially designed for ..
  • 30mm x 600mm x 1200mm Rockwool RW6 (140kg density) Class A1
  • Non-combustible resin bonded Rigid Stone Wool Insulation Slab RW6
  • Fire, thermal and acoustic slab used for a wide range of building applications
  • Manufactured in 140kg density per m3 - Class ‘0’ to Building Regulations
  • Used in floors, roofs at rafter level, partitions, ceilings, timber and steel frame walls
£ 175.12
Ex Tax:£ 145.93
Estimated delivery: 7-14 working days
Brand: Rockwool® Model: 30mm RW6 Double Sided Foil Facings (FFx2)
30mm Foil Faced 2 Sides Rockwool RW6 (140kg) is a foil faced and backed class A1 insulation slab with an excellent fire, thermal and acoustic properties used for a wide range of building applications. Foil Faced Two Sides (FFx2) Rockwool RW6 30x600x1200mm fire performance integrity is 240 minutes..
  • 30mm x 600mm x 1200mm Foil Faced x2 Sides Rockwool RW6 (140kg/m3)
  • Class A1 Non-combustible Rigid Stone Wool Insulation Slab Rockwool RW6
  • Fire, thermal and acoustic slab used for a wide range of building applications
  • Manufactured in 140kg density per m3 - Class ‘0’ to Building Regulations
  • Used in soffits, floors, roofs at rafter level, partitions, ceilings, walls
£ 913.64
Ex Tax:£ 761.37
Estimated delivery: 7-14 working days
Brand: Rockwool® Model: 30mm RW6 (FFx1) Foil Faced 1 Side
30mm Foil Faced Rockwool RW6 (140kg) is a foil backed class A1 non-combustible insulation slab with an excellent fire, thermal and acoustic properties used for a wide range of building applications. Rockwool RW6 Foil Faced x1 Side Slab 30x600x1200mm fire performance integrity is 240 minutes, and ..
  • 30x600x1200mm Foil Faced x1 Side Rockwool RW6 (140kg density m3)
  • Class A1 Non-combustible Rigid Stone Wool Insulation Slab Rockwool RW6
  • Fire, thermal and acoustic slab used for a wide range of building applications
  • Manufactured in 140kg density per m3 - Class ‘0’ to Building Regulations
  • Used in soffits, floors, roofs at rafter level, partitions, ceilings, walls
£ 830.56
Ex Tax:£ 692.13
Estimated delivery: 7-14 working days
Brand: Terrawool® Model: 30mm TW50 Terrawool
30mm Terrawool TW50 Acoustic Insulation Slab is a standard density (50kg/m3) non-combustible thermal and acoustic stone wool insulation slab used to insulate the floors, internal partition walls and separating wall applications. Terrawool TW50 Insulation Slab 30mm is a high-performance recyclable..
  • Terrawool TW50 Sound Insulation Slab
  • Acoustic Slab Density: 50kg/m3
  • Thermal and Acoustic Stone Wool Insulation
  • Thermal Conductivity: 0.035W/mK
  • Fire performance: Euroclass A1 Non-combustible
£ 53.88
Ex Tax:£ 44.90
Estimated delivery: 5-7 working days
Brand: Kingspan® Model: 32.5mm K118
32.5mm K118 Kingspan Kooltherm (30mm) Insulated Plasterboard is an advanced 3 in 1 product for internal wall insulation used as mechanically fixed and adhesively bonded 'dot and dab' thermal insulated plasterboard. Kingspan Kooltherm K118 range is a fibre-free rigid phenolic thermoset insulation ..
  • Kingspan Kooltherm K118 (previously K18 and K17)
  • Insulation, dry-lining and vapour control in one board
  • Easy to handle and install - Ideal for new build, retrofit and refurbishment
  • Standards & Approvals: ISO 9001 - ISO 14001 - BBA Certificate 16/5299
  • Premium performance insulation thermal conductivity of 0.019 W/mK
£ 2,626.97
Ex Tax:£ 2,189.14
Estimated delivery: 5-7 working days
Brand: Xtratherm® Model: 37.5mm SR/TB-MF
37.5mm Safe-R SR/TB-MF Thermal Liner Mech-Fix Insulated Plasterboard is a combination of 25mm premium phenolic foam insulation core with a composite foil facings bonded to 12.5mm tapered edge plasterboard for dry lining internal walls, sloped roofs and ceilings. Safe-R Xtratherm SR/TB-MF Thermal ..
  • Internal Walls, Sloped Roofs and Ceilings
  • Provides Continuous Vapour Control Layer
  • Reaction to Fire Euroclass B-s1, d0
  • Insulation & Drylining in one Application
  • BBA Certification No.10/4803.
£ 1,176.92
Ex Tax:£ 980.77
Estimated delivery: 5-7 working days
Brand: British Gypsum® Model: 38mm Gyproc PIR
38mm British Gypsum Gyproc ThermaLine PIR is an Insulated Plasterboard made from 12.5mm Gyproc WallBoard bonded to a 25.5mm rigid PIR (polyisocyanurate) foam with a multi-layer kraft aluminium facings on both sides of the insulation foam board. Gyproc Thermaline PIR 38mm is a simple and cost-effe..
  • 38mm Gyproc ThermaLine PIR Insulated Plasterboard
  • Multi-layer kraft aluminium facings on both sides
  • For both refurbishment and new build projects
  • Simple and cost-effective 2 in 1 insulated plasterboard
  • Provides insulation and dry lining in one operation
£ 71.88
Ex Tax:£ 59.90
Estimated delivery: 3-5 working days
Brand: British Gypsum® Model: 38mm PIR MR
38mm British Gypsum Gyproc Thermaline PIR MR Insulated Plasterboard is a high performance insulated panel consists of a 12.5mm Moisture Resistant plasterboard bonded to a 25.5mm rigid PIR foam core with a multi-layer aluminium and water repellent kraft facings on both sides. Moisture Resistant In..
  • British Gypsum Gyproc Thermaline PIR MR
  • 38mm Moisture Resistant Insulated Plasterboard
  • Water repellent kraft facings on both sides
  • Improves moisture resistance and thermal performance
  • Lightweight and easy to install Drylining Board
£ 95.88
Ex Tax:£ 79.90
Estimated delivery: 3-5 working days
Brand: Rockwool® Model: 50mm RW4 Double Sided Foil FFx2
50mm Foil Faced Two Sides Rockwool RW4 is used to prevent the spread of flames, heat, smoke and fire through concealed spaces in buildings, a rigid class A1 non-combustible resin bonded insulation slab. Rockwool RW4 Foil Faced 2 Sides Slab 50mm x 600mm x 1200mm fire performance integrity is 240 m..
  • Foil Faced x2 Sides Rockwool RW4 (80kg/m3) A1 Class 1200x600x50mm
  • Non-combustible resin bonded Rigid Stone Wool Insulation Slab RW4 (FFx2)
  • Fire, thermal and acoustic slab used for a wide range of building applications
  • Manufactured in 80kg density per m3 - Class ‘0’ to Building Regulations (FFx2)
  • Fire performance integrity is 240 minutes, and 60 minutes for the insulation core
£ 335.88
Ex Tax:£ 279.90
Estimated delivery: 7-14 working days
Brand: Rockwool® Model: Foil Faced 1 Side RW4 - 50mm
50mm Foil Faced Rockwool RW4 is used to prevent the spread of flames, heat, smoke and fire through concealed spaces in buildings, a rigid class A1 non-combustible resin bonded insulation slab. Rockwool RW4 Foil Faced Slab 50mm x 600mm x 1200mm fire performance integrity is 240 minutes, and 60 min..
  • Foil Faced x1 Side Rockwool RW4 (80kg/m3) A1 Class 1200x600x50mm
  • Non-combustible resin bonded Rigid Stone Wool Insulation Slab RW4
  • Fire, thermal and acoustic slab used for a wide range of building applications
  • Manufactured in 80kg density per m3 - Class ‘0’ to Building Regulations
  • Fire performance integrity is 240 minutes, and 60 minutes for the insulation core
£ 275.88
Ex Tax:£ 229.90
Estimated delivery: 7-14 working days
Brand: Kingspan® Model: 50mm K112
50mm Kingspan Kooltherm K112 Framing Board is a premium performance rigid thermoset phenolic insulation used between studs or as an insulating sheathing material. Kooltherm K112 is an advanced insulation that allows target U-values to be reached with minimal thickness of insulation, an ideal solu..
  • 50mm Kingspan Kooltherm K112 Framing Board
  • Premium performance rigid thermoset phenolic insulation
  • Certified thermal conductivity of 0.019 W/mK
  • Used between studs or as an insulating sheathing material
  • Insulation for timber and steel framing systems
£ 665.88
Ex Tax:£ 554.90
Estimated delivery: 5-7 working days
Brand: Knauf® Model: 50mm Flexible
50mm Knauf Rocksilk Flexible Insulation Slab is a functional thermal and acoustic multi-purpose rock mineral wool insulation slab which can be used to insulate a wide range of applications on site such as timber and metal stud partitions, timber frame walls and suspended timber floors. Knauf Flex..
  • Knauf - Rock Mineral Wool
  • Building Regulations: Class ‘O’ 
  • Non-Combustible - Euroclass A1
  • Thermal and Acoustic Insulation
  • Multi-Application - 60 minutes Fire Protection
£ 59.04
Ex Tax:£ 49.20
Estimated delivery: 3-5 working days
Brand: Rockwool® Model: 50mm Rockwool RW4 80kg
50mm Rockwool RW4 (80kg) is a robust, class A1 non-combustible resin bonded rigid insulation slab with an excellent fire, thermal and acoustic properties used for a wide range of building applications. Rockwool Stone Wool Insulation Slab if correctly installed exceeds the minimum requirements of ..
  • 50mm x 600mm x 1200mm Rockwool RW4 (80kg density) Class A1
  • Non-combustible resin bonded Rigid Stone Wool Insulation Slab RW4
  • Fire, thermal and acoustic slab used for a wide range of building applications
  • Manufactured in 80kg density per m3 - Class ‘0’ to Building Regulations
  • Used in floors, roofs at rafter level, partitions, ceilings, timber and steel frame walls
£ 71.88
Ex Tax:£ 59.90
Estimated delivery: 7-14 working days
Brand: Xtratherm® Model: 50mm SR/FB Framing Board
50mm Framing Board Xtratherm Safe-R SR/FB is a top-class rigid foam phenolic insulation board with a low emissivity foil facings designed for use with steel and timber frame applications up to 18m in height. A high-performance BBA certified phenolic 2400mm x 1200mm square edge panel with an appro..
  • Suitable for use in Steel and Timber Frame Systems
  • Superior Lambda Value as low as 0.021W/mK
  • Provides excellent U-Values and improved thermal bridging detailing
  • Can be used between studs or as an insulated sheathing board
  • Reaction to Fire Euroclass B-s1, d0
£ 479.17
Ex Tax:£ 399.31
Estimated delivery: 5-7 working days
Brand: Xtratherm® Model: 50mm SR/RS Rainscreen
50mm Rainscreen Cladding Insulation Xtratherm Safe-R SR/RS is a high-class rigid phenolic insulation board with a low emissivity foil facings designed for ventilated rainscreen cladding applications in new build and refurbishment projects Xtratherm SR/RS 2400mm x 1200mm x 50mm insulation boards a..
  • Lower Lambda values for improved U-Values
  • Superior Lambda Value as low as 0.021W/mK
  • BBA Certified - Certification Number 10/4803
  • Tested and Approved under BS 8414 and BR135
  • Euroclass B Fire Classification - Rainscreen Applications
£ 500.29
Ex Tax:£ 416.91
Estimated delivery: 5-7 working days
Brand: Unilin Insulation (UK) known as Xtratherm Model: 50mm Unilin SR/FB Framing Board
50mm Unilin SR/FB is an insulation board designed for use with steel or timber frame applications up to 11m in height, SR/FB can be also used between studs or as an insulated sheathing board. Safe-R SR/FB is manufactured to EN 13166 by Unilin Insulation with certified lambda (thermal conductivity..
  • 50mm Unilin Safe-R SR/FB Framing Board (Rigid Phenolic Foam Insulation)
  • Rigid phenolic foam insulation board with a composite foil-facing on both sides
  • Designed for use with steel or timber frame applications up to 11m in height
  • SR/FB can be also used between studs or as an insulated sheathing board
  • Certified lambda (thermal conductivity) of 0.020 W/mK and Euroclass C-s1 d0 fire class
£ 677.88
Ex Tax:£ 564.90
Estimated delivery: 3-5 working days
Brand: Unilin Insulation (UK) known as Xtratherm Model: 50mm Unilin XO/FB Framing Board
50mm Unilin XO/FB XtroLiner Framing Board is an insulation board designed for use in a wide range of constructions including steel or timber frame applications up to 11m in height. XO/FB Framing Board used into the traditional cavity of the construction improves the value of the walls over the tr..
  • Unilin XO/FB XtroLiner Framing Board (Steel and Timber Frame Applications)
  • Rigid foam modified Polyisocyanurate (PIR) core with textured robust facings
  • Lambda (thermal conductivity) of 0.021 W/mK and Euroclass C s2 d0 fire class
  • Used between studs or as an insulated sheathing in a wide range of constructions
  • Suitable for new build and refurbishment projects in buildings up to 11m in height
£ 449.88
Ex Tax:£ 374.90
Estimated delivery: 5-7 working days
Brand: Xtratherm® Model: 50mm
50mm Xtratherm Xtroliner Framing Board XO/FB is an improved performance PIR (polyisocyanurate) insulation board with robust textured foil facings designed for use in a wide range of construction including steel or timber frame applications up to 18m in height. The Xtratherm Xtroliner XO/FB framin..
  • BBA Certificate 12/4956
  • Thermal Conductivity: 0.021W/mK
  • Reaction to Fire Euroclass C-s2, d0
  • Reduced Thermal Bridging - Robust Textured Foil
  • Suitable for Newbuild and Renovation up to 18m in height
£ 586.38
Ex Tax:£ 488.65
Estimated delivery: 5-7 working days
Brand: Superglass® Model: 60mm APR
60mm Superglass Multi Acoustic Partition Roll APR Insulation is a flexible unfaced fibreglass mineral wool sound insulation roll used in internal partition walls, framed separating walls and timber separating floors. Superglass APR Insulation Rolls are non-combustible and have a fire classificati..
  • Non-combustible
  • Reaction to Fire Euroclass A1
  • Density in excess of 10kg/m³
  • Sound Absorption & Noise Reduction Properties
  • Perforated 2 x 600mm / 3 x 400mm - studs / joists