Wall Insulation

  • Cavity wall insulation
  • External wall insulation
  • Insulated plasterboards
  • Internal wall insulation
  • Partition wall insulation

The benefits of properly sealed, moisture-protected, and insulated walls are:

  • increased comfort
  • reduced noise
  • reduced energy cost
  • reduced CO2 emissions
Wall Insulation requirements

In order to achieve most effective results when installing wall insulation a number of key factors must be taken into consideration:

  • Airtight construction—all air leaks should be sealed in the wall during construction and prior to insulation installation.
  • Moisture control—exterior rain drainage system, continuous air barrier, and vapour barrier should be located on the appropriate side of the wall
  • Complete insulation coverage—advanced framing should be used to maximize insulation coverage and reduce thermal bridging, no gaps or compressed insulation, and continuous insulated sheathing.
Air sealing

Air sealing reduces heat flow from air movement (convection) and prevents water vapour in the air from entering the wall. In a 100-squarefoot wall, one cup of water can diffuse through drywall without a vapour barrier in a year, but 50 cups can enter through a ½-inch, round hole. In fact, sealing air leaks is 10 to 100 times as important as installing a vapour barrier. Air sealing and moisture control make insulation more effective. Vapour barriers only retard moisture due to diffusion, while most moisture enters walls either through fluid capillary action or as water vapour through air leaks.

Causes of rain leaks through exterior walls include improper installation of siding materials; poor-quality flashing, weather-stripping, or caulking around joints in the building exterior (such as windows, doors, and bottom plates); and wind-driven rain that penetrates the exterior finish. To enhance protection against rain penetration, a drainage plane should be created within the wall system of the home.

U-value

The effectiveness of an insulating material is measured using a 'U-value'. A U-value is a measure of how much heat is conducted through a structure. Correctly installed insulation will have a low U-value as it will allow only small amounts of heat to pass through, thereby keeping your home warmer for longer.

Building regulations require insulated walls to achieve U-value of 0.27 W/m K or better (i.e. Lower).

Wall and Insulation Types

The first step in getting wall insulation is establishing the wall type of your home. The three main wall types are:

  • cavity walls
  • solid walls
  • hollow block walls
A building contractor or architect will be able to tell you what type of wall your home has. Depending on the wall specification three types of wall insulation can be used:
  • Cavity wall insulation
  • Internal Insulation
  • External insulation
Wall Insulation Application Types

    Full fill cavity

    Used in cavity walls.

    • No need for a residual cavity.
    • Suitable for mineral wool and some expanded polystyrene insulants.
    • Insulation thickness varies according to the U-value requirement.
    • Wall tie or suitable fixing is essential.
    • Foil faced insulants are not suitable for this application.
    • Suitable for natural insulation materials when used with a barrier

    Partial fill cavity

    Used where residual cavity is needed to avoid risk of rain penetration.

    • Residual cavity must be a minimum of 50mm.
    • Suitable for all insulants.
    • Thinner, foil faced insulation boards take advantage of reduction in heat radiance across the cavity and reach required U-value.
    • Any problems associated with complete cavity fill can be avoided.
    • Suitable for natural insulation materials when used with a barrier

    Internal Wall Insulation (Thermal Laminates)

    Used in homes built with solid wall or hollow block construction method.

    • Combination of insulation already bonded to plasterboard.
    • Simple to fit - just fix against internal leaf of wall.
    • Wide range of insulation materials available to meet every need.
    • Suitable for refurbishment
    External Wall Insulation
    Used in solid walls that suffer from poor airtightness.
    • Ideally suited to refurbishment products.
    • Wide range of products offered for this application.
    • Suitable for natural insulation materials when used with a barrier


    Choose subcategory or scroll down to see products

    Filter by MANUFACTURER (show)

    Show:
    Sort By: Limit:

    25mm Celotex CW4000 Rigid PIR Cavity Insulation Board (pack of 20)

    25mm Celotex CW4000 Rigid PIR Cavity Insulation Board (pack of 20)

    1200x450mm - 10.8m2  show quantity discountsDelivery Time: 3 - 5 days

    Guide Price: £51.00 (£61.20 inc VAT)

    £4.72/m2 (£5.66/m2 inc VAT)

    show quantity discounts

    25mm Celotex CW4000 is an insulation board aimed specifically at partial fill cavity wall applications. It comprises a polyisocyanurate rigid foam insulation core, with a thermal conductivity of 0.022 W/mK and low emissivity aluminium foil facings on both sides. CW4000 is manufactured from rigi..

    Guide Price: £51.00 (£61.20 inc VAT)

    £4.72/m2 (£5.66/m2 inc VAT)

    show quantity discounts
    = m2
    other thicknesses
    12mm Celotex TB4000 PIR Insulation Board

    12mm Celotex TB4000 PIR Insulation Board

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

    £10.40 (£12.48 inc VAT)

    £3.61/m2 (£4.33/m2 inc VAT)

    show quantity discounts

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

    £10.40 (£12.48 inc VAT)

    £3.61/m2 (£4.33/m2 inc VAT)

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

    50mm Celotex GA4000 PIR Insulation Board

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

    £17.85 (£21.42 inc VAT)

    £6.20/m2 (£7.44/m2 inc VAT)

    show quantity discounts

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

    £17.85 (£21.42 inc VAT)

    £6.20/m2 (£7.44/m2 inc VAT)

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

    110mm Celotex XR4000 PIR Insulation Board

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

    Guide Price: £37.09 (£44.51 inc VAT)

    £12.88/m2 (£15.46/m2 inc VAT)

    show quantity discounts

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

    Guide Price: £37.09 (£44.51 inc VAT)

    £12.88/m2 (£15.46/m2 inc VAT)

    show quantity discounts
    = m2
    other thicknesses
    27.5mm Xtratherm Thin-R Thermal Liner XT/TL-MF - Mech Fix (15mm PIR Insulation bonded to 12.5mm Plasterboard)

    27.5mm Xtratherm Thin-R Thermal Liner XT/TL-MF - Mech Fix (15mm PIR Insulation bonded to 12.5mm Plasterboard)

    1200x2400 (2.88m2)  show quantity discountsDelivery Time: 2 - 3 days

    Guide Price: £28.81 (£34.57 inc VAT)

    £10.00/m2 (£12.00/m2 inc VAT)

    show quantity discounts

    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..

    Guide Price: £28.81 (£34.57 inc VAT)

    £10.00/m2 (£12.00/m2 inc VAT)

    show quantity discounts
    = m2
    other thicknesses
    24.5mm Xtratherm Thin-R Thermal Liner XT/TL-MF - Mech Fix (15mm PIR Insulation bonded to 9.5mm Plasterboard)

    24.5mm Xtratherm Thin-R Thermal Liner XT/TL-MF - Mech Fix (15mm PIR Insulation bonded to 9.5mm Plasterboard)

    1200x2400 (2.88m2)  show quantity discountsDelivery Time: 2 - 3 days

    Guide Price: £28.81 (£34.57 inc VAT)

    £10.00/m2 (£12.00/m2 inc VAT)

    show quantity discounts

    24.5mm Xtratherm Thin-R Thermal Liner XT/TL-MF is a composite insulated panel of 15mm Xtratherm Polyiso (PIR) core with foil faces bonded to 9.5mm tapered edge plasterboard for mechanically fixing to internal walls. XT/TL-MF is designed to provide high levels of thermal insulation and dry ..

    Guide Price: £28.81 (£34.57 inc VAT)

    £10.00/m2 (£12.00/m2 inc VAT)

    show quantity discounts
    = m2
    other thicknesses
    41mm Celotex CG5000 Partial Fill Cavity Wall Board (pack of 12)

    41mm Celotex CG5000 Partial Fill Cavity Wall Board (pack of 12)

    450x1200mm - 6.48m2  show quantity discountsDelivery Time: 2 - 3 days

    Guide Price: £62.42 (£74.90 inc VAT)

    £9.63/m2 (£11.56/m2 inc VAT)

    show quantity discounts

    Celotex CG5041 is especially designed for partial fill cavity wall insulation, offering great thermal performance due to substantial R and U values, with decreased board thickness and lower emissivity values due to the aluminum foil facings on both sides of the PIR core. This set of products present..

    Guide Price: £62.42 (£74.90 inc VAT)

    £9.63/m2 (£11.56/m2 inc VAT)

    show quantity discounts
    = m2
    other thicknesses
    50mm Celotex SW3000 External Wall Insulation Board (pack of 10)

    50mm Celotex SW3000 External Wall Insulation Board (pack of 10)

    1200x600 - 7.2m2  Delivery Time: 3 - 5 days

    50mm Celotex SW3000 is the perfect solution for the thermal upgrade of external solid walls. It provides a quick and easy method of achieving effective thermal insulation in external solid wall constructions where no insulation currently exists. With coated glass tissue facings on both sides, SW3000..

    = m2
    other thicknesses
    25mm Celotex FR5000 Fire Resistant PIR Insulation Board (pack of 16)

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

    1200x2400mm - 46.08m2  show quantity discountsDelivery Time: 3 - 5 days

    show quantity discounts

    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..

    = m2
    other thicknesses
    25mm Celotex GD5025 PIR Insulation Board with 9.5mm Plasterboard (pack of 26)

    25mm Celotex GD5025 PIR Insulation Board with 9.5mm Plasterboard (pack of 26)

    1200x2400mm - 74.88m2  show quantity discountsDelivery Time: 3 - 5 days

    £1,137.91 (£1,365.49 inc VAT)

    £15.20/m2 (£18.24/m2 inc VAT)

    show quantity discounts

    Celotex GD5025 is a premium performance PIR insulation bonded to 9.5mm 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 interna..

    £1,137.91 (£1,365.49 inc VAT)

    £15.20/m2 (£18.24/m2 inc VAT)

    show quantity discounts
    = m2
    other thicknesses
    25mm Celotex GS5025 PIR Insulation Board with 9.5mm Plasterboard (pack of 26)

    25mm Celotex GS5025 PIR Insulation Board with 9.5mm Plasterboard (pack of 26)

    Celotex GS5025 - 74.88m2  show quantity discounts

    Guide Price: £1,137.91 (£1,365.49 inc VAT)

    £15.20/m2 (£18.24/m2 inc VAT)

    show quantity discounts

    Celotex GS5025 is a premium performance PIR insulation board faced with low emissivity aluminum foils on both sides and bonded to 9.5 mm tapered edge plasterboard, providing an insulation product and a plasterboard in one. The product is designed for mechanically fixed applicatio..

    Guide Price: £1,137.91 (£1,365.49 inc VAT)

    £15.20/m2 (£18.24/m2 inc VAT)

    show quantity discounts
    = m2
    other thicknesses
    20mm Thermawall TW55 PIR Insulation Board Kingspan

    20mm Thermawall TW55 PIR Insulation Board Kingspan

    TW55 - 1200x2400  show quantity discountsDelivery Time: 1 - 2 days

    £13.23 (£15.88 inc VAT)

    £4.59/m2 (£5.51/m2 inc VAT)

    show quantity discounts

    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. The product is manufactured with a blowing agent that has zero Ozone Depletion Potential (ODP) and low Glob..

    £13.23 (£15.88 inc VAT)

    £4.59/m2 (£5.51/m2 inc VAT)

    show quantity discounts
    = m2
    other thicknesses
    20mm Kooltherm K5 External Wall Board Kingspan (pack of 25)

    20mm Kooltherm K5 External Wall Board Kingspan (pack of 25)

    K5 1200x600 - 18 m2  show quantity discountsDelivery Time: 3 - 5 days

    £128.70 (£154.44 inc VAT)

    £7.15/m2 (£8.58/m2 inc VAT)

    show quantity discounts

    20mm Kingspan Kooltherm K5 External Wall Board is the external wall insulation comprising a premium performance rigid thermoset phenolic insulation core faced on both sides with a glass tissue based facing auto-adhesively bonded to the insulation core during manufacture. The product is manufactured ..

    £128.70 (£154.44 inc VAT)

    £7.15/m2 (£8.58/m2 inc VAT)

    show quantity discounts
    = m2
    other thicknesses
    Ceresit CT174 Silicate-Silicone Render 1.5mm grain

    Ceresit CT174 Silicate-Silicone Render 1.5mm grain

    CT174 - 25kg  show quantity discountsDelivery Time: 5 - 7 days

    £58.00 (£69.60 inc VAT)

    £5.80/m2 (£6.96/m2 inc VAT)

    show quantity discounts

    1.5mm grain Ceresit CT174 Silicate-Silicone Render is a decorative thin-layer render for indoor and outdoor applications. Ceresit CT 174 combines good points of silicate render and silicone render. It is vapour permeable, of low absorbability and dirt resistant. It is used for making thin-layer rend..

    £58.00 (£69.60 inc VAT)

    £5.80/m2 (£6.96/m2 inc VAT)

    show quantity discounts
    = m2
    other grains
    10mm Siniat BluClad Board

    10mm Siniat BluClad Board

    2400x1200mm - 2.88.m2  show quantity discountsDelivery Time: 2 - 4 days

    Guide Price: £48.55 (£58.26 inc VAT)

    £16.86/m2 (£20.23/m2 inc VAT)

    show quantity discounts

    Siniat BluClad is a medium density fibre reinforced calcium silicate board which has been formulated without inorganic fibre. Available in a standard 10mm thickness, it is off-white in colour and has a smooth surface on the front face and textured on the reverse. The smooth face is for painting and..

    Guide Price: £48.55 (£58.26 inc VAT)

    £16.86/m2 (£20.23/m2 inc VAT)

    show quantity discounts
    = m2
    25mm Thermawall TW50 PIR Cavity Wall Insulation Board (pack of 20)

    25mm Thermawall TW50 PIR Cavity Wall Insulation Board (pack of 20)

    TW50 - 1200x450 - 10.8m2  show quantity discountsDelivery Time: 3 - 5 days

    Guide Price: £49.35 (£59.22 inc VAT)

    £4.57/m2 (£5.48/m2 inc VAT)

    show quantity discounts

    25mm Kingspan Thermapitch TW50 comprises of a high performance rigid thermoset insulation core faced on both sides with a low emissivity composite foil facing. The product is manufactured with a blowing agent that has zero Ozone Depletion Potential (ODP) and low Global Warming Potential&nb..

    Guide Price: £49.35 (£59.22 inc VAT)

    £4.57/m2 (£5.48/m2 inc VAT)

    show quantity discounts
    = m2
    other thicknesses
    15mm Xtratherm PIR Rigid Insulation Board

    15mm Xtratherm PIR Rigid Insulation Board

    TThin-R - 2400 x 1200 - 2.88m2  show quantity discountsDelivery Time: 3 - 5 days

    Guide Price: £12.50 (£15.00 inc VAT)

    £4.34/m2 (£5.21/m2 inc VAT)

    show quantity discounts

    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: £12.50 (£15.00 inc VAT)

    £4.34/m2 (£5.21/m2 inc VAT)

    show quantity discounts
    = m2
    other thicknesses
    25mm EPS70 Polystyrene Insulation Board Jablite (pack of 12)

    25mm EPS70 Polystyrene Insulation Board Jablite (pack of 12)

    2400x1200 (34.56m2)  show quantity discountsDelivery Time: 2 - 3 days

    £43.20 (£51.84 inc VAT)

    £1.25/m2 (£1.50/m2 inc VAT)

    show quantity discounts

    25mm Jablite EPS is a lightweight cellular plastic material suitable for a wide range of building insulation applications. It is an excellent insulating medium which exhibits consistent thermal performance over the range of temperatures normally encountered in buildings. The material is versatile, l..

    £43.20 (£51.84 inc VAT)

    £1.25/m2 (£1.50/m2 inc VAT)

    show quantity discounts
    = m2
    other thicknesses
    25mm EPS70 Polystyrene Insulation Board Kay-Metzeler (pack of 12)

    25mm EPS70 Polystyrene Insulation Board Kay-Metzeler (pack of 12)

    2400x1200mm - 34.56m2  show quantity discountsDelivery Time: 2 - 3 days

    £43.20 (£51.84 inc VAT)

    £1.25/m2 (£1.50/m2 inc VAT)

    show quantity discounts

    25mm EPS70 Kay-Metzeler boards are produced by cutting expanded foam blocks. Placed above a concrete slab or a precast concrete floor in domestic ground-floor constructions, then finished with a wearing layer of chipboard to satisfy the Building Regulations' U-value requirements. Kay-Metzeler achie..

    £43.20 (£51.84 inc VAT)

    £1.25/m2 (£1.50/m2 inc VAT)

    show quantity discounts
    = m2
    other thicknesses
    25mm Earthwool RS45 Universal Insulation Slab Knauf (pack of 20)

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

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

    Guide Price: £30.78 (£36.94 inc VAT)

    £2.14/m2 (£2.57/m2 inc VAT)

    show quantity discounts

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

    Guide Price: £30.78 (£36.94 inc VAT)

    £2.14/m2 (£2.57/m2 inc VAT)

    show quantity discounts
    = m2
    other thicknesses
    25mm URSA Acoustic Insulation Roll

    25mm URSA Acoustic Insulation Roll

    1.2x20m - 24.00m2  show quantity discountsDelivery Time: 1 - 2 days

    Guide Price: £29.24 (£35.09 inc VAT)

    £1.22/m2 (£1.46/m2 inc VAT)

    show quantity discounts

    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: £29.24 (£35.09 inc VAT)

    £1.22/m2 (£1.46/m2 inc VAT)

    show quantity discounts
    = m2
    other thicknesses
    25mm Xtratherm Safe-R Phenolic Insulation Board (pack of 12)

    25mm Xtratherm Safe-R Phenolic Insulation Board (pack of 12)

    2400x1200 - 34.56m2  show quantity discountsDelivery Time: 2 - 3 days

    £267.24 (£320.69 inc VAT)

    £7.73/m2 (£9.28/m2 inc VAT)

    show quantity discounts

    25mm Xtratherm Safe-R Phenolic foam is a superior performance rigid insulation with enhanced fire performance, consisting of a Class O phenolic foam core with negligible smoke obscuration. Safe-R is faced with low emissivity aluminium facings both sides, and has a thermal conductivity as low as 0.02..

    £267.24 (£320.69 inc VAT)

    £7.73/m2 (£9.28/m2 inc VAT)

    show quantity discounts
    = m2
    other thicknesses
    25mm Yelofoam X2i Cellecta

    25mm Yelofoam X2i Cellecta

    2500x600mm - 1.5m2  show quantity discountsDelivery Time: 2 - 4 days

    Guide Price: £16.72 (£20.06 inc VAT)

    £11.15/m2 (£13.38/m2 inc VAT)

    show quantity discounts

    25mm Cellecta Yelofoam is made of extruded polystyrene (XPS) foam blown with a mix of HFA & CO2 gases, containing a yellow pigment, flame retardant additive and nucleating agent. Cellecta insulation products are manufactured to the highest possible specification. Ex All product’s’ physical prope..

    Guide Price: £16.72 (£20.06 inc VAT)

    £11.15/m2 (£13.38/m2 inc VAT)

    show quantity discounts
    = m2
    other thicknesses
    35mm Xtratherm Thin-R XT/CW Partial Fill Cavity Insulation (pack of 9)

    35mm Xtratherm Thin-R XT/CW Partial Fill Cavity Insulation (pack of 9)

    XT/CW 1200x450 - 4.86m2  show quantity discountsDelivery Time: 2 - 4 days

    £26.00 (£31.20 inc VAT)

    £5.35/m2 (£6.42/m2 inc VAT)

    show quantity discounts

    Xtratherm ThinR XT/CW Partial Fill Cavity Wall Insulation is the best solution when designers or regulations demand additional thermal insulation in external masonry walls, without a substantial increase in the width of the cavity. Xtratherm Thin-R boards achieve high standards of insulation wh..

    £26.00 (£31.20 inc VAT)

    £5.35/m2 (£6.42/m2 inc VAT)

    show quantity discounts
    = m2
    other thicknesses
    50mm Cavi-Mate EPS Cavity Closer

    50mm Cavi-Mate EPS Cavity Closer

    2.5m  show quantity discountsDelivery Time: 1 - 2 days

    £9.52 (£11.42 inc VAT)

    show quantity discounts

    Cavi-Mate EPS Cavity Closer is a new, robust window installation system ideal for the new build market. Manufactured from high quality PVC-U, it is a window former, locator and cavity closer, which enables Contractors to fit window frames quickly and easily by building around the sub-frame then fitt..

    £9.52 (£11.42 inc VAT)

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

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

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

    £35.83 (£43.00 inc VAT)

    £4.15/m2 (£4.98/m2 inc VAT)

    show quantity discounts

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

    £35.83 (£43.00 inc VAT)

    £4.15/m2 (£4.98/m2 inc VAT)

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

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

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

    Guide Price: £26.19 (£31.43 inc VAT)

    £6.06/m2 (£7.27/m2 inc VAT)

    show quantity discounts

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

    Guide Price: £26.19 (£31.43 inc VAT)

    £6.06/m2 (£7.27/m2 inc VAT)

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

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

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

    Guide Price: £30.78 (£36.94 inc VAT)

    £4.75/m2 (£5.70/m2 inc VAT)

    show quantity discounts

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

    Guide Price: £30.78 (£36.94 inc VAT)

    £4.75/m2 (£5.70/m2 inc VAT)

    show quantity discounts
    = m2
    other thicknesses
    50mm Rockwool Cavity Insulation Batt (pack of 12)

    50mm Rockwool Cavity Insulation Batt (pack of 12)

    1200x455 - 6.55m2  show quantity discountsDelivery Time: 1 - 2 days

    £19.92 (£23.90 inc VAT)

    £3.04/m2 (£3.65/m2 inc VAT)

    show quantity discounts

    50mm Rockwool Cavity Batt provides a completely reliable and cost-effective method of insulating new masonry cavity wall construction. Its BBA certified for use as full fill cavity wall insulation and is effective in reducing the thermal transmittance (U value) of new external cavity walls with maso..

    £19.92 (£23.90 inc VAT)

    £3.04/m2 (£3.65/m2 inc VAT)

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

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

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

    £28.05 (£33.66 inc VAT)

    £3.25/m2 (£3.90/m2 inc VAT)

    show quantity discounts

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

    £28.05 (£33.66 inc VAT)

    £3.25/m2 (£3.90/m2 inc VAT)

    show quantity discounts
    = m2
    other thicknesses
    Showing 1 to 30 of 149 (5 Pages)