50mm Unilin Thin-R XT/CW Partial Fill Cavity Wall Insulation (T&G) is typically used in external walls of buildings with cavity wall construction.
Cavity Wall Insulation
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1-4 5-10 11+ £1,218.88 £1,194.50 £1,182.31 
50mm Unilin T&G XT/CW Partial Fill Cavity Wall Insulation Board 1200mm x 450mm Pallet of 225
£1,218.88 £1,462.66 Inc VAT£5.42 Per Sheet Add to cart -
60mm Celotex CW4060 Cavity Wall Insulation Board 1200mm x 450mm 5.4m2 Pack of 10
60mm Celotex CW4060 Cavity Wall Insulation Board is an easy to install polyisocyanurate (PIR) insulation board with excellent thermal performance, featuring a low emissivity foil facing.
£53.99 £64.79 Inc VAT£5.40 Per Sheet Add to cart -
60mm Ecotherm Eco-Cavity Insulation Board 1200mm x 450mm Pack of 8
60mm Ecotherm Eco-Cavity wall insulation boards are ideal for masonry walls. They achieve high levels of thermal performance for thinner constructions whilst maintaining a clear residual air gap; effective protection against driving rain, particularly in coastal and exposed locations.
£43.20 £51.84 Inc VAT£5.40 Per Sheet Add to cart -
60mm Kingspan Kooltherm K108 Cavity Board Insulation 1200mm x 450mm Pack of 8
60mm Kingspan Kooltherm K108 partial fill cavity wall board is a premium performance lower lambda insulation with a rigid thermoset fibre-free phenolic core. It is faced on both sides with a low emissivity composite foil facing and is used in partially filled cavity walls.
£100.15 £120.18 Inc VAT£12.52 Per Sheet Add to cart -
60mm Kingspan Thermawall TW50 PIR Insulation Board 1200mm x 450mm Pack of 8
60mm Kingspan Thermawall TW50 is a high performance insulation with thermal conductivity of 0.022 W/mK. Therma is a range of PIR insulation available in a range of thicknesses.£52.32 £62.78 Inc VAT£6.54 Per Sheet Add to cart -
70mm Kingspan Thermawall TW50 PIR Insulation Board 1200mm x 450mm Pack of 6
70mm Kingspan Thermawall TW50 is a high performance insulation with thermal conductivity of 0.022 W/mK. Therma is a range of PIR insulation available in a range of thicknesses.£44.58 £53.50 Inc VAT£7.43 Per Sheet Add to cart -
75mm Celotex CW4075 Cavity Wall Insulation Board 1200mm x 450mm 4.32m2 Pack of 8
75mm Celotex CW4075 Cavity Wall Insulation Board is an easy to install polyisocyanurate (PIR) insulation board with excellent thermal performance, featuring a low emissivity foil facing.
£53.99 £64.79 Inc VAT£6.75 Per Sheet Add to cart -
75mm Ecotherm Eco-Cavity Insulation Board 1200mm x 450mm Pack of 6
75mm Ecotherm Eco-Cavity wall insulation boards are ideal for masonry walls. They achieve high levels of thermal performance for thinner constructions whilst maintaining a clear residual air gap; effective protection against driving rain, particularly in coastal and exposed locations.
£36.99 £44.39 Inc VAT£6.17 Per Sheet Add to cart -
75mm Kingspan Kooltherm K108 Cavity Board Insulation 1200mm x 450mm Pack of 6
75mm Kingspan Kooltherm K108 partial fill cavity wall board is a premium performance lower lambda insulation with a rigid thermoset fibre-free phenolic core. It is faced on both sides with a low emissivity composite foil facing and is used in partially filled cavity walls.
£92.88 £111.46 Inc VAT£15.48 Per Sheet Add to cart -
75mm Kingspan Thermawall TW50 PIR Insulation Board 1200mm x 450mm Pack of 6
75mm Kingspan Thermawall TW50 is a high performance insulation with thermal conductivity of 0.022 W/mK. Therma is a range of PIR insulation available in a range of thicknesses.£41.66 £49.99 Inc VAT£6.94 Per Sheet Add to cart -
75mm Superglass Superwall 32 Cavity Wall Slab 4.37m2 Pack
75mm Superglass Superwall 32 is non-combustible and water repellent glass mineral wool insulation cavity wall batt. The flexible batt is supplied at 455mm wide to allow easy installation between standard vertical wall tie spacings and minimum on-site cutting and waste.
£34.57 £41.48 Inc VAT£7.91 Per m2 Add to cart -
75mm Superglass Superwall 36 Cavity Wall Slab 5.46m2 Pack
75mm Superglass Superwall 36 is non-combustible and water repellent glass mineral wool insulation cavity wall batt. The flexible batt is supplied at 455mm wide to allow easy installation between standard vertical wall tie spacings and minimum on-site cutting and waste.
£24.99 £29.99 Inc VAT£4.58 Per m2 Add to cart -
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1-4 5-10 11+ £1,014.88 £994.58 £984.43 75mm Unilin T&G XT/CW Partial Fill Cavity Wall Insulation Board 1200mm x 450mm Pallet of 150
75mm Unilin Thin-R XT/CW Partial Fill Cavity Wall Insulation (T&G) is typically used in external walls of buildings with cavity wall construction.
£1,014.88 £1,217.86 Inc VAT£6.77 Per Sheet Add to cart -
75mm URSA 35 Cavity Wall Insulation Slab 4.91m2 Pack
75mm URSA Cavity Batt is a lightweight, semi-rigid glass mineral wool slab treated with silicon-based water repellent. It is suitable for use in both fully and partially filled masonry cavity walls up to 25m high.
£29.36 £35.23 Inc VAT£5.98 Per m2 Add to cart -
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1-4 5-10 11+ £916.99 £898.65 £889.48 80mm Unilin XT/CW Partial Fill Cavity Wall Insulation Board 1200mm x 450mm Pallet of 125
80mm Unilin Thin-R XT/CW Partial Fill Cavity Wall Insulation (S&E) is typically used in external walls of buildings with cavity wall construction.
£916.99 £1,100.39 Inc VAT£7.34 Per Sheet Add to cart -
85mm Superglass Superwall 36 Cavity Wall Slab 4.37m2 Pack
85mm Superglass Superwall 36 is non-combustible and water repellent glass mineral wool insulation cavity wall batt. The flexible batt is supplied at 455mm wide to allow easy installation between standard vertical wall tie spacings and minimum on-site cutting and waste.
£23.05 £27.66 Inc VAT£5.27 Per m2 Add to cart -
90mm Celotex Thermaclass Cavity Wall 21 Insulation Board 1190mm x 450mm Pack of 6
£77.23 £92.68 Inc VAT£12.87 Per Sheet Add to cart -
90mm Ecotherm Eco-Cavity Full Fill Insulation Board 1200mm x 450mm Pack of 4
Eco-Cavity Full Fill is suitable for full fill cavity wall applications while maintaining a residual 10 mm cavity. The residual cavity helps resist moisture transfer, aids installation, and accommodates mortar squeeze. The tongue and groove edges to ensure a continuous layer of insulation, increasing protection from wind driven rain and aiding installation.
£35.99 £43.19 Inc VAT£9.00 Per Sheet Add to cart -
90mm Kingspan Kooltherm K106 Cavity Board Insulation 1200mm x 450mm Pack of 4
90mm Kingspan Kooltherm K106 Cavity Board is a premium performance insulation with a fibre-free rigid thermoset phenolic core with a thermal conductivity of just 0.019 W/mK across all thicknesses.
£80.88 £97.06 Inc VAT£20.22 Per Sheet Add to cart -
100mm Knauf DriTherm 32 Cavity Wall Insulation Slab 455mm x 1200mm 3.27m2 Pack
100mm DriTherm Cavity Slab 32 is a water-repellent Glass Mineral Wool slab designed for use in external full-fill masonry cavity walls, that offers the best thermal performance in the range. It is non-combustible with the best possible Euroclass A1 reaction to fire classification.
£34.88 £41.86 Inc VAT£10.67 Per m2 Add to cart -
150mm Knauf DriTherm 32 Cavity Wall Insulation Slab 455mm x 1200mm 2.18m2 Pack
150mm DriTherm Cavity Slab 32 is a water-repellent Glass Mineral Wool slab designed for use in external full-fill masonry cavity walls, that offers the best thermal performance in the range. It is non-combustible with the best possible Euroclass A1 reaction to fire classification.
£35.88 £43.06 Inc VAT£16.46 Per m2 Add to cart -
150mm Knauf DriTherm 37 Cavity Wall Insulation Slab 455mm x 1200mm 4.37m2 Pack
150mm DriTherm Cavity Slab 37 is a water-repellent Glass Mineral Wool slab, designed for use in external full-fill masonry cavity walls, that offers excellent thermal performance. It is non-combustible with the best possible Euroclass A1 reaction to fire classification
£33.88 £40.66 Inc VAT£7.75 Per m2 Get restock alert -
100mm Knauf DriTherm 37 Cavity Wall Insulation Slab 455mm x 1200mm 6.55m2 Pack
100mm DriTherm Cavity Slab 37 is a water-repellent Glass Mineral Wool slab, designed for use in external full-fill masonry cavity walls, that offers excellent thermal performance. It is non-combustible with the best possible Euroclass A1 reaction to fire classification
£33.33 £40.00 Inc VAT£5.09 Per m2 Get restock alert
