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Timber Joist Floor and Ceiling Systems

If you want your floor or ceiling construction to meet and even exceed the prescribed acoustic values, as regulated by the Approved document E of the Building regulations, then you will need a proper upgrade which will additionally improve the fire performance of roof linings and separating and internal floors.

The system includes innovative metal products which are much lighter than traditional timber and blockwork however strong and durable enough; board products which differ in order of fulfilling different requirements in regard to the thermal, acoustic and fire performance of the construction; finishing and fixing products, including screws, sealants and jointing materials and finally effective insulation products designed for acoustic and thermal performance and fire-stopping.

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Brand: Isover Model and Size: 75mm CWS 32 - 5.46m2
Delivery Time: 2 - 4 days
75mm Isover CWS 32 batt is a dense glass wool insulation product, providing high thermal performance in masonry cavity wall insulation, applicable in various type of buildings including domestic, commercial, industrial, health, retail, education. The products density allows it to have extremely..
£69.01
£82.81 inc VAT
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75mm Isover RD Party Wall Roll
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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
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75mm Knauf  DriTherm Cavity Slab 34 Super (pack of 10) 75mm Knauf  DriTherm Cavity Slab 34 Super (pack of 10)
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Brand: Knauf Model and Size: 1200x455mm - 5.46m2
Delivery Time: 2 - 3 working days
75mm Knauf DriTherm 34 Super Cavity Slab is a high-performance insulation product specifically designed for use in external full-fill masonry cavity walls. These water-repellent glass mineral wool slabs provide exceptional thermal performance, making them an ideal choice for enhancing energy efficie..
Guide Price: £63.22
£75.86 inc VAT
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Brand: Knauf Model and Size: 1200mm x 5250mm - 151.20m2
Delivery Time: 2 - 3 weeks
75mm Knauf Earthwool Rafter Roll is a premium insulation product specifically designed for use in pitched roofs and rafter spaces. Manufactured using Knauf's innovative Ecose Technology, this insulation solution is made from sustainable materials, ensuring a reduced environmental impact while provid..
£2,655.35
£3,186.42 inc VAT
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75mm YBS Cavi-Mate EPS Cavity Closer
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Brand: YBS Insulation Model and Size: 2.5m
Delivery Time: 1 - 2 days
YBS 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 ..
Guide Price: £11.32
£13.58 inc VAT
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78mm British Gypsum Gyproc Thermaline PIR Insulated Plasterboard - (68.5mm PIR and 12.5mm Gyproc WallBoard)
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Brand: British Gypsum Model and Size: PIR - 78mm
Delivery Time: 1 - 5 working days
78mm Gyproc Thermaline PIR Insulated Plasterboard consists of a 12.5mm Gyproc WallBoard factory bonded to a 68.5mm 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 ..
Guide Price: £161.45
£193.74 inc VAT
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78mm British Gypsum Gyproc Thermaline PIR MR Insulated Plasterboard - (68.5mm PIR and 12.5mm Gyproc MR WallBoard)
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Brand: British Gypsum Model and Size: PIR MR - 78mm
Delivery Time: 1 - 5 working days
78mm Gyproc Thermaline PIR MR Insulated Plasterboard consists of a 12.5mm Gyproc Moisture Resistant Board factory bonded to a 68.5mm  rigid polyisocyanurate foam (PIR) with a multi-layer Kraft/aluminium facer on both sides of the insulation board and conforms to BS EN 13950...
Guide Price: £156.24
£187.49 inc VAT
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Brand: Wemico Model and Size: 93308
Delivery Time: 1 - 2 days
Aluminium Stop Track Profile for thermal insulation systems with render, designed for 80mm thickness of insulating board. These profiles can be powder coated to any standard RAL colour...
£138.67
£166.40 inc VAT
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Brand: Arbet Model and Size: 1000x500mm - 3.5m2
Delivery Time: In Stock 1-2 working days
80mm Grey Polystyrene (Graphite) is a high quality expanded polystyrene (EPS) board enhanced with integrated graphite within its bead structure and of grey colour. The high-purity graphite particles integrated within the insulation beads reflects radiant heat and significantly improves insulati..
£39.33
£47.20 inc VAT
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Brand: British Gypsum Model and Size: Super - 80mm
Delivery Time: 3 - 5 days
80mm Gyproc Thermaline Super Insulated Plasterboard is a highly efficient rigid WallBoard board bonded to phenolic foam insulant offering vapour control and fire resistance. It is also highly environmentally friendly, manufactured without harmful agents such as CFC and HCFC. The ..
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80mm Kingspan Kooltherm K10 Soffit Insulation Board (pack of 3) - 1200mm x 2400mm 80mm Kingspan Kooltherm K10 Soffit Insulation Board (pack of 3) - 1200mm x 2400mm
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Brand: Kingspan Model and Size: 1200mm x 2400mm - 8.64m2
Delivery Time: 3 - 5 days
80mm Kingspan Kooltherm K10 Soffit Insulation Board is a premium performance insulation solution specifically designed for soffit applications. It comprises a fibre-free rigid thermoset phenolic insulation core, which delivers exceptional thermal performance with a low thermal conductivity of just 0..
Guide Price: £232.40
£278.88 inc VAT
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80mm Kingspan Kooltherm K15 Rainscreen Board (pack of 4)
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Brand: Kingspan Model and Size: 80mm K15 - 11.52m2
Delivery Time: 1 - 2 weeks
80mm Kingspan Kooltherm K15 Rainscreen Board consists of a rigid thermoset modified resin insulation core, covered with low emissivity composite foil on both sides and manufactured. The board is very easy to cut and shape by using a saw or a sharp knife. It is very durable when properly installed an..
Guide Price: £344.24
£413.09 inc VAT
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80mm Kingspan Styrozone H350R Flat Roof XPS Board (pack of 5)
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Brand: Kingspan Model and Size: H350R 80mm - 0.75m2
Delivery Time: 3 - 5 days
Kingspan Styrozone H350R Flat Roof XPS Board is highly effective rigid insulation board made from extruded polystyrene core covered with smooth skin on both sides. It is especially designed for protected membrane flat roofs, but is also used in green roofs as a popular alternative to tradi..
Guide Price: £74.56
£89.47 inc VAT
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Brand: Kingspan Model and Size: N300R 80mm - 3.75m2
Delivery Time: 3 - 5 days
80mm Kingspan Styrozone N300R XPS Board is an insulation for inverted roofs, basements, car park decks, and heavy-duty commercial, industrial and cold store flooring. They have high compressive strength, and a closed cell structure which resists the absorption of ground water and the passage of..
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80mm Kingspan Styrozone N500R XPS Board (pack of 5)
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Brand: Kingspan Model and Size: 1250x600mm - 3.75m2
Delivery Time: 3 - 5 days
80mm Kingspan Styrozone N 500 R XPS Board is an insulation for inverted roofs, basements, car park decks, and heavy-duty commercial, industrial and cold store flooring. They have high compressive strength, and a closed cell structure which resists the absorption of ground water and the passage ..
Guide Price: £80.73
£96.88 inc VAT
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80mm Kingspan Thermaroof TR26 (pack of 4)
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Brand: Kingspan Model and Size: 2400x1200mm - 11.52m2
Delivery Time: 3 - 5 days
80mm Kingspan Thermaroof TR26 is a high performance, fibre free, rigid thermoset PIR insulation core faced on both sides with a low emissivity composite foil facing which is used for insulating flat roofs and is fully compatible with most mechanically fixed single ply waterproofing systems and ..
Guide Price: £478.52
£574.22 inc VAT
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Brand: Kingspan Model and Size: 80mm TR27 - 5.76m2
Delivery Time: 3 - 5 days
25mm Kingspan Thermaroof TR27 is a PIR insulation board made from highly effective rigid PIR core faced with coated glass tissue on both sides added during manufacturing. The product offers substantial durability and long life span depending on the condition of the supporting structure. This board c..
£197.01
£236.41 inc VAT
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Brand: Knauf Model and Size: 1200mm x 1000mm - 36m2
Delivery Time: 8 - 12 weeks
80mm Knauf Rocksilk Krimpact Flat Roof Slab is a high-performance insulation solution designed specifically for flat roofing applications. Manufactured from non-combustible stone wool, this product offers excellent thermal insulation properties, helping to maintain comfortable indoor temperatures wh..
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Brand: Cordek Model and Size: HX B 85mm - 2.88m2
Delivery Time: 3 - 7 days
85mm Cellcore HX B Under Beam is specially designed to provide foundation protection from ground heave effects when installed beneath reinforced ground beams and pile caps. It is consisted of specially moulded hexagonal cellular Filcor expended polystyrene, available in a number of different de..
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Brand: Celotex Model and Size: FF4000 1200x2400 - 40.32m2
Delivery Time: 3 - 5 days
85mm Celotex FF4000 Underfloor Heating Board (pack of 14) | FF 4085 Size: 1200mm x 2400mm Area per pack: 40.32m2 Thermal conductivity: 0.022 W/Mk R-Value: 3.85m2K/W Compressive strength: ≥150kPa Water vapour resistance: >150 MNs/g Weight: 2.93kg/m2 &..
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85mm Dufaylite Commercial Clayboard Void Former (pack of 22)
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Brand: Dufaylite Model and Size: 1000x2440mm - 53.68m2
Delivery Time: 5 - 7 days
85mm Dufaylite Commercial Clayboard Void Former is a lightweight board available in four different thicknesses, and especially applicable to large scale, commercial projects. It is made from extremely environmentally friendly components, lowering the carbon footprint of the building, but also provid..
Guide Price: £1,838.72
£2,206.46 inc VAT
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85mm Dufaylite Residential Clayboard Void Former  (pack of 22)
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Brand: Dufaylite Model and Size: 1000x2440mm - 53.68m2
Delivery Time: 5 - 7 days
85mm Dufaylite Residential Clayboard Void Former is a specially designed board consisting of a lightweight, eco-friendly and biodegradable core covered with polypropylene facings. The product is designed to prevent the common problem of expansion and shrinkage of clay soil when it is ..
Guide Price: £1,622.57
£1,947.08 inc VAT
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85mm Isover Cavity Wall Slabs (pack of 12)
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Brand: Isover Model and Size: 455x1200mm - 6.55m2
Delivery Time: 2 - 4 days
85mm ISOVER Cavity Wall Slab (CWS) is a non-combustible, silicone impregnated glass mineral wool thermal insulation in masonry cavity walls in full-fill applications. It is designed to be installed during construction in the cavity between two masonry leaves in external walls. Meets Part L..
Guide Price: £42.83
£51.40 inc VAT
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85mm Isover Hi-Cav CWS 32 - pack of 8
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Brand: Isover Model and Size: 85mm CWS 32 - 4.37m2
Delivery Time: 2 - 4 days
85mm Isover CWS 32 batt is a dense glass wool insulation product, providing high thermal performance in masonry cavity wall insulation, applicable in various type of buildings including domestic, commercial, industrial, health, retail, education. The products density allows it to have extremely..
Guide Price: £66.89
£80.27 inc VAT
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Brand: Knauf Model and Size: 1200mm x 600mm - 138.24m2
Delivery Time: 3 - 5 weeks
85mm Knauf Earthwool Timber Frame Party Wall Slab is a high-performance insulation solution specifically designed for use in timber frame party walls. This product is manufactured using Knauf's innovative Ecose Technology, which incorporates sustainable materials and a unique binder that significant..
£1,268.32
£1,521.98 inc VAT
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Brand: Wemico Model and Size: 93309
Delivery Time: 1 - 2 days
Aluminium Stop Track Profile for thermal insulation systems with render, designed for 90mm thickness of insulating board. These profiles can be powder coated to any standard RAL colour...
£160.92
£193.10 inc VAT
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Brand: Cordek Model and Size: HX S 90mm - 2.88m2
Delivery Time: 3 - 7 days
90mm Cellcore HX S is a product specially designed to provide foundation protection from ground heave effects when installed under reinforced concrete floor slabs. It is consisted of specially moulded hexagonal cellular expended polystyrene, available in a number of different depths and grades. Grou..
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Brand: Celotex Model and Size: FF4000 1200x2400 - 37.44m2
Delivery Time: 3 - 5 days
90mm Celotex FF4000 Underfloor Heating Board (pack of 13) | FF 4090 Size: 1200mm x 2400mm Area per pack: 37.44m2 Thermal conductivity: 0.022 W/Mk R-Value: 4.05m2K/W Compressive strength: ≥150kPa Water vapour resistance: >150 MNs/g Weight: 3.09kg/m2 &..
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Brand: Celotex Model and Size: 1200x2400 - 37.44m2
Delivery Time: 1 - 5 working days
90mm Celotex TA4000 PIR Insulation Board (pack of 13) Size: 1200mm x 2400mm Area per pack: 37.44m2 Thermal conductivity: 0.022 W/Mk R-Value: 4.05m2K/W Compressive strength: ≥150kPa Water vapour resistance: >150 MNs/g Weight: 3.09kg/m2   Celotex TA4000 prov..
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Brand: British Gypsum Model and Size: Super - 90mm
Delivery Time: 3 - 5 days
90mm Gyproc Thermaline Super Insulated Plasterboard is a highly efficient rigid WallBoard board bonded to phenolic foam insulant offering vapour control and fire resistance. It is also highly environmentally friendly, manufactured without harmful agents such as CFC and HCFC. The ..
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