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Internal Wall Insulation

One of the main disadvantages of internal insulation is the loss of room space; this may be minimised by using high performance insulation products that are thinner. While this is often a more affordable option than installing external wall insulation, the loss of space and potential necessity to take out and re-fit fitted kitchens and appliances can result in people choosing the external insulation option.

Insulation Shop offers a wide range of high performance PIR rigid insulation from manufacturers Celotex, Xtratherm. That includes PIR boards bonded to plasterboard (Celotex PL4000) which gives user the ability to install both the insulation and plasterboard in one operation thus significantly reducing installation time.

R-value Comparison Chart for Internal Wall Insulation products available at Insulation Shop

Legend

1* URSA Acoustic Insulation Roll

2* Isover Acoustic Partition Roll, Isover RD Party Wall Roll, Isover Acoustic Multi-Purpose Slab, Isover Acoustic High Performance Slab

3* Superglass Multi Acoustic Insulation Roll, Superglass Acoustic Insulation Roll

4* Rockwool RW3 Slab (Prorox SL 930)

5* Earthwool Acoustic Insulation Roll, Earthwool RS45 Universal Slab, Earthwool RS60 Universal Slab, Earthwool RS100 Universal Slab, Rockwool RWA45 (Prorox SL920)

6* Earthwool Flexible Insulation Slab, Rockwool Flexi Insulation Slab

7* Rockwool RW5 Slab (Prorox SL960)

8* Celotex FR5000 Fire Resistant Insulation Board

9* Celotex TB4000 Insulation Board, Celotex GA4000 Insulation Board, Celotex XR4000 Insulation Board, Kingspan Thermawall TW55 Wall Insulation Board, Recticel Eurothane GP Insulation Board, EcoTherm EcoVersal Insulation Board, Celotex PL4000 Insulated Plasterboard, Xtratherm Thin-R Thermal Liner - Mech FixXtratherm Safe-R Thermal Liner SR/TB - Dot & Dab, Gyproc Thermaline Insulated Plasterboard, Gyproc Thermaline MR Insulated Plasterboard, EcoTherm EcoLiner Insulated Plasterboard

10* Kingspan Kooltherm K118 Insulated Plasterboard 

11* Kingspan Kooltherm K17 Plasterboard, Kingspan Kooltherm K18 Plasterboard

12* Gyproc Thermaline Super Insulated Plasterboard, Kingspan Kooltherm K12 Framing Board, Xtratherm Safe-R Thermal Liner SR/TB Mex-Fix, Xtratherm Safe-R Thermal Liner SR/TB - Dot & Dab

13* Xtratherm Safe-R insulation Board

14* Cellecta Yelofoam X2i

15* Knauf Polyfoam Linerboard XPS

16* Grey Polystyrene (Graphite) EPS

17* Gyproc Thermaline Plus Insulated Plasterboard

18* Jablite EPS100 Polystyrene Insulation Board

19* Kay-Metzeler EPS70 Polystyrene Insulation Board

20* Jablite EPS70 Polystyrene Insulation Board, Knauf EPS Thermal Laminate Insulation Board

21* Gyproc Thermaline Basic insulated plasterboard

22* White Polystyrene Board

CHOOSE MANUFACTURERS or scroll down to see products (show)

Brand: Knauf Model and Size: 2x11.1m x 1.2m - 26.64m2
Delivery Time: 1 - 2 days
25mm Knauf Earthwool Acoustic Roll is a flexible glass mineral wool quilt which is lightweight, flexible, resilient and non-combustible. The rolls are 1200mm wide and ready cut to produce 2 rolls in 600mm widths. Earthwool Acoustic Roll is manufactured to a minimum density of 10kg/m3. It is specific..
£43.72
£52.46 inc VAT
Brand: Isover Model and Size: 20mx1.2m - 24.00m2
Delivery Time: 2 - 3 working days
25mm Isover Acoustic partition roll (APR 1200) is a glass mineral wool, non-combustible product used for partitions, walls and floors acoustic insulation. Although very lightweight and flexible, thus easy to transport, cut into shape and install, it is very strong and highly resilient. Its non-hygro..
Guide Price: £38.36
£46.03 inc VAT
Brand: Isover Model and Size: 75mm - 7.74m2
Delivery Time: 2 - 3 working days
75mm Isover RD Party Wall Roll is a medium density mineral wool product, mainly applicable to sound insulation of party wall constructions. Due to its zero U value and soundproofing values, it is manufactured to meet the required conditions under Approved Document E of Building Regulations in Englan..
Guide Price: £84.19
£101.03 inc VAT
Brand: Isover Model and Size: 1200x600mm - 230.40m2
Delivery Time: 3 - 7 days
50mm Isover Acoustic High Performance Slab is a glass mineral wool slab providing high levels of acoustic and thermal performance in wall-lining systems, partitions and modular building applications. Manufactured from a combination of silica sand and up to 86% recycled post-consumer glass from ..
Brand: Isover Model and Size: 600x1200mm - 11.52m2
Delivery Time: 3 - 5 days
50mm Isover Acoustic Multi-Purpose Slab is a glass mineral wool slab providing high levels of acoustic and thermal performance in wall-lining systems, partitions and modular building applications.APPLICATIONWall lining systemsPartitions and other building structuresCHARACTERISTICSProvides ..
Guide Price: £212.39
£254.87 inc VAT
Brand: URSA Model and Size: 1.2x20m - 24.00m2
Delivery Time: 1 - 2 days
25mm URSA Acoustic Roll is a lightweight, non-combustible, unfaced glass mineral wool product used for sound insulation of lightweight metal or wooden stud partitions in both new and existing buildings. This product is manufactured from sand, an abundant, sustainable resource and may also utilise up..
Guide Price: £44.33
£53.20 inc VAT
Brand: Rockwool Model and Size: 1200x600mm - 10.8m2
Delivery Time: 2 - 3 working days
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: £58.64
£70.37 inc VAT
Brand: Rockwool Model and Size: RW5 50mm - 2.88m2
Delivery Time: 2 - 3 working days
50mm Rockwool RW5 (Prorox SL960) is a high quality resin bonded rigid 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. Th..
Guide Price: £42.82
£51.38 inc VAT
Brand: Rockwool Model and Size: 600x1200mm - 11.52m2
Delivery Time: 1-3 working days
25mm Rockwool RWA45 is a high quality resin bonded flexible 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 str..
Guide Price: £34.32
£41.18 inc VAT
Brand: Rockwool Model and Size: 1200x400mm - 5.76m2
Delivery Time: 1 - 2 days
50mm x1200mm x 400mm Rockwool Flexi Insulation Slab is a unique semi-rigid thermal and acoustic insulation product made from volcanic rock. It has a flexible edge, specifically developed using patented technology for a fast and easy, perfect friction fit between timber and metal frame syst..
Guide Price: £30.24
£36.29 inc VAT
Brand: Rockwool Model and Size: 1200x600mm - 8.64m2
Delivery Time: 1 - 2 days
50mm x1200mm x 600mm Rockwool Flexi Insulation Slab is a unique semi-rigid thermal and acoustic insulation product made from volcanic rock. It has a flexible edge, specifically developed using patented technology for a fast and easy, perfect friction fit between timber and metal frame syst..
£46.33
£55.60 inc VAT
Brand: Knauf Model and Size: 1200x600 - 8.64m2
Delivery Time: 2 - 3 working days
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..
£45.31
£54.37 inc VAT
Brand: Knauf Model and Size: 1200x600 - 14.4m2
Delivery Time: 2 - 3 working days
25mm Rocksilk RS45 Universal Slabs are rock mineral wool slabs designed for use in multiple thermal and acoustic applications where density is critical. The standard product is supplied unfaced, but slabs can also be manufactured with a factory-applied foil or tissue facing and are available with a ..
Guide Price: £41.63
£49.96 inc VAT
Brand: Knauf Model and Size: 1200x600 - 6.48m2
Delivery Time: 1 - 2 days
50mm Rocksilk RS60 Universal Slabs are rock mineral wool slabs, available in a range of densities and designed for use in multiple thermal and acoustic applications where density is critical. The standard product is supplied unfaced, but slabs can also be manufactured with a factory applie..
Guide Price: £41.63
£49.96 inc VAT
Brand: Knauf Model and Size: 1200x600 - 4.32m2
Delivery Time: 2 - 3 working days
50mm Rocksilk RS100 Universal Slabs are rock mineral wool slabs, available in a range of densities and designed for use in multiple thermal and acoustic applications where density is critical. The standard product is supplied unfaced, but slabs can also be manufactured with a factory appli..
Guide Price: £54.60
£65.52 inc VAT
Brand: Kingspan Model and Size: TW55 - 1200x2400
Delivery Time: 1 - 5 working days
20mm Kingspan Thermawall TW55 is a stud wall PIR insulation board comprising a high performance rigid thermoset insulation core faced on both sides with a low emissivity composite foil facing. APPLICATIONInsulated sheathing on timber frameInsulated sheathing on steel frameInsulation betwee..
£42.08
£50.50 inc VAT
Brand: Xtratherm Model and Size: 2400mm x 1200mm - 2.88m2
Delivery Time: 1-3 working days
15mm Xtratherm Thin-r is a foil faced Polyisocyanurate (PIR) insulation board formed by a blowing process which generates rigid foam composed of fine cells filled with Pentane blowing agent trapped within the foam. Pentane has very good insulating properties and gives Thin-r superb insulating capabi..
Guide Price: £22.10
£26.52 inc VAT
24.5mm Xtratherm Thin-R Thermal Liner XT/TL-MF - Mech Fix (15mm PIR Insulation bonded to 9.5mm Plasterboard)
Guide Price
Brand: Xtratherm Model and Size: 1200x2400 (2.88m2)
Delivery Time: 1-3 working days
24.5mm Xtratherm Thin-R Thermal Liner XT/TL-MF, this innovative composite insulated panel combines a 15mm Xtratherm Polyiso (PIR) core with foil faces, bonded to 9.5mm tapered edge plasterboard for secure mechanical fixing to internal walls. Ideal for use in new build and refurbishment projects, XT/..
Guide Price: £50.48
£60.58 inc VAT
Brand: Xtratherm Model and Size: 1200x2400 (2.88m2)
Delivery Time: 1-3 working days
27.5mm Xtratherm Thin-R Thermal Liner XT/TL-MF is a composite insulated panel of 15mm Xtratherm Polyiso (PIR) core with foil faces bonded to 12.5mm tapered edge plasterboard for mechanically fixing to internal walls. XT/TL-MF is designed to provide high levels of thermal insulation and dry lining in..
Guide Price: £50.48
£60.58 inc VAT
37.5mm Unilin Thin-R Thermal Liner XT/TL-MF - Mech Fix (25mm PIR Insulation bonded to 12.5mm Plasterboard) 37.5mm Unilin Thin-R Thermal Liner XT/TL-MF - Mech Fix (25mm PIR Insulation bonded to 12.5mm Plasterboard)
Guide Price
Brand: Unilin Insulation (formerly known as Xtratherm) Model and Size: 1200x2400 - 2.88m2
Delivery Time: 1-3 working days
37.5mm Unilin Thin-R Thermal Liner XT/TL-MF is a composite insulated panel of 25mm Unilin PIR core with foil faces bonded to 12.5mm tapered edge plasterboard for mechanically fixing to internal walls. Unilin XT/TL-MF is designed to provide high levels of thermal insulation and dry lining i..
Guide Price: £49.93
£59.92 inc VAT
Brand: Xtratherm Model and Size: 1200x2400 - 2.88m2
Delivery Time: 1-3 working days
24.5mm Xtratherm XT/TL Thermal Liner Dot and Dab Insulated Plasterboard is a high performance rigid insulation board made from 25mm Xtratherm PIR core faced with composite kraft paper bonded to 9.5mm tapered edge plasterboard, specially designed for internal walls dry lining and insulation, due to i..
Guide Price: £57.71
£69.25 inc VAT
27.5mm Xtratherm XT/TL Thermal Liner Dot and Dab (15mm PIR Insulation bonded to 12.5mm Plasterboard)
Guide Price
Brand: Xtratherm Model and Size: 1200x2400 - 2.88m2
Delivery Time: 1-3 working days
27.5mm Xtratherm XT/TL Thermal Liner Dot and Dab Insulated Plasterboard is a high performance rigid insulation board made from 15mm Xtratherm PIR core faced with composite kraft paper bonded to 12.5mm plasterboard, specially designed for internal walls dry lining and insulation, due to its closed ce..
Guide Price: £57.71
£69.25 inc VAT
Brand: Unilin Insulation (formerly known as Xtratherm) Model and Size: 1200mm x 2400mm - 2.88m2
Delivery Time: 1-3 working days
37.5mm Unilin XT/TL Thermal Liner Dot and Dab Insulated Plasterboard is a high performance rigid insulation board made from 25mm Unilin PIR core faced with composite kraft paper bonded to 12.5mm plasterboard, specially designed for internal walls dry lining and insulation, due to its close..
Guide Price: £57.10
£68.52 inc VAT
Brand: Celotex Model and Size: 1200x2400mm - 2.88m2
Delivery Time: 1-3 working days
Celotex TB4020 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 manufac..
Guide Price: £28.41
£34.09 inc VAT
Brand: Celotex Model and Size: 1200x2400mm - 46.08m2
Delivery Time: Out Of Stock
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..
25mm Celotex GD5025 PIR Insulation Board with 12.5mm Plasterboard (pack of 26)
Guide Price
Brand: Celotex Model and Size: 1200x2400mm - 74.88m2
Delivery Time: 1 - 5 working days
Celotex GD5025 is a premium performance PIR insulation bonded to 12.5mm tapered edge plasterboard. Allows for the installation of both the insulation and plasterboard in one operation, thereby reducing installation time. Simplifies compliance to current building regulations for the upgrade of intern..
Brand: EcoTherm Insulation Model and Size: 2400x1200mm - 2.88m2
Delivery Time: 1 - 5 working days
37.5mm EcoTherm EcoLiner is an insulated plasterboard for mechanically fixed & adhesively bonded drylining systems. The insulation component has a thermal conductivity of 0.022 W/mK. This 2 in 1 board insulates and finishes walls in one application. Eco-Liner is an ideal insulation product for i..
£64.57
£77.48 inc VAT
Brand: EcoTherm Insulation Model and Size: 1200x2400mm - 2.88m2
Delivery Time: 1 - 5 working days
25mm EcoTherm 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 polyisocyanurat..
£12.76
£15.31 inc VAT
Brand: Recticel Model and Size: GP1200x2400 - 2.88m2
Delivery Time: 1-3 working days
25mm Eurothane GP comprising a rigid polyisocyanurate (PIR) core faced on both sides with a gas tight multilayer composite aluminium foil facing is the ideal choice for pitched roof, floor or framed wall applications. With a low thermal conductivity value (0.022 W/mK) providing an excellent the..
£24.18
£29.02 inc VAT
Brand: British Gypsum Model and Size: PIR - 38mm
Delivery Time: 1 - 5 working days
38mm Gyproc Thermaline PIR Insulated Plasterboard consists of a 12.5mm Gyproc WallBoard factory bonded to a 25.5mm rigid polyisocyanurate foam (PIR) with a multi-layer Kraft/aluminium facer on both sides of the insulation board and conforms to BS EN 13950. Gyproc ThermaLine ..
£99.92
£119.90 inc VAT
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