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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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100mm ThermaFleece CosyWool Flexible Slab 570mm x 1200mm (pack of 7)
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Brand: Thermafleece Model and Size: 1200mm x 590mm - 4.79m2
Delivery Time: 2 - 5 working days
Thermafleece CosyWool Flexible Slab is a versatile low density insulation rich in British sheeps wool, which would give you all round performance and value for money. It contains 75% Sheeps wool, 15% recycled polyester and 10% polyester binder with a high recycled content making it highly envir..
Guide Price: £64.79
£77.75 inc VAT
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100mm ThermaFleece NatraHemp Flexible Slab 370mm x 1200mm (pack of 24)
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Brand: Thermafleece Model and Size: 1200x370mm - 10.66m2
Delivery Time: 2 - 3 working days
Thermafleece NatraHemp Flexible Slab is a medium density insulation rich in home-grown hemp fibres and is a safe, efficient and durable alternative when plant fibre is the preferred choice. Hemp is a fast-growing, low-impact plant crop that produces fine fibres suitable for insulation. Hemp fib..
Guide Price: £224.68
£269.62 inc VAT
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100mm ThermaFleece NatraHemp Flexible Slab 570mm x 1200mm (pack of 16)
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Brand: Thermafleece Model and Size: 1200x570mm - 10.94m2
Delivery Time: 2 - 3 working days
Thermafleece NatraHemp Flexible Slab is a medium density insulation rich in home-grown hemp fibres and is a safe, efficient and durable alternative when plant fibre is the preferred choice. Hemp is a fast-growing, low-impact plant crop that produces fine fibres suitable for insulation. Hemp fib..
Guide Price: £230.59
£276.71 inc VAT
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100mm ThermaFleece SupaSoft Itch Free Loft Insulation Roll 390mm wide (pack of 3)
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Brand: Thermafleece Model and Size: 390mm x 5000mm - 5.85m2
Delivery Time: 2 - 3 working days
Thermafleece SupaSoft offers a safe, sustainable and cost effective way to insulate your loft. It contains 100% recycled polyester and is made almost entirely from recycled plastic bottles. SupaSoft contains no harmful chemicals or binders and is completely safe to handle. It can be used to insulate..
Guide Price: £51.49
£61.79 inc VAT
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100mm ThermaFleece SupaSoft Itch Free Loft Insulation Roll 590mm wide (pack of 2)
Guide Price
Brand: Thermafleece Model and Size: 590mm x 5000mm - 5.90m2
Delivery Time: 2 - 3 working days
Thermafleece SupaSoft offers a safe, sustainable and cost effective way to insulate your loft. It contains 100% recycled polyester and is made almost entirely from recycled plastic bottles. SupaSoft contains no harmful chemicals or binders and is completely safe to handle. It can be used to ins..
Guide Price: £51.92
£62.30 inc VAT
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Brand: Rockwool Model and Size: 1000x600mm - 0.6m2
Delivery Time: 1 - 2 weeks
100mm Thermal Rockwool Rockfloor Insulation Slab is a tissue faced, high compressive dual density insulation slab made from mineral stone wool, and meets Part L Building Regulations in ground floors, and for acoustic applications, meets Building Regulations Part E, in intermediate and sepa..
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Brand: Unilin (prev. Xtratherm) Model and Size: 1200x2400mm - 11.52m2
Delivery Time: 1-3 working days
100mm Unilin ECO360 MA Floor PIR Insulation board has a bio-enhanced, halogen free core of modified polyisocyanurate (PIR) floor insulation bonded to textured low emissivity foil facings. Unilin ECO360 MA board offers excellent insulation performance with excellent thermal conductivit..
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Brand: Unilin (prev. Xtratherm) Model and Size: 1200x2400mm - 11.52m2
Delivery Time: 1-3 working days
100mm Unilin ECO360 MA Pitched Roof PIR Insulation board has a bio-enhanced, halogen free core of modified polyisocyanurate (PIR) pitched roof insulation bonded to textured low emissivity foil facings. Unilin ECO360 MA board offers excellent insulation performance with excellent thermal co..
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Brand: Unilin (prev. Xtratherm) Model and Size: 1200x2400mm - 11.52m2
Delivery Time: 1-3 working days
100mm Unilin ECO360 MA Sarking PIR Insulation board has a bio-enhanced, halogen free core of modified polyisocyanurate (PIR) pitched roof insulation bonded to textured low emissivity foil facings. Unilin ECO360 MA Sarking board offers excellent insulation performance with excellent th..
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Brand: Unilin (prev. Xtratherm) Model and Size: 1200x450mm - 2.16m2
Delivery Time: 1-3 working days
100mm Unilin ECO360/CW Partial Fill Cavity Wall  board has a core of modified polyisocyanurate (PIR) bonded to low emissivity textured aluminium foil facings offering excellent insulation performance with thermal conductivity. Unilin ECO360 CW board reduces the junctions prone to thermal b..
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100mm Unilin FR-BGM Flat Roof Insulation Board (pack of 5)
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Brand: Unilin (prev. Xtratherm) Model and Size: 1200mm x 1200mm - 7.20m2
Delivery Time: 3 - 5 days
100mm Unilin FR-BGM is a a BBA certified high performance PIR insulation board that is faced with a fleece finished bitumen/glass facers and is suitable for use below partially bonded bitumen based built up roofing systems. Unilin FR-BGM is suitable to apply torch on felt directly on the insulation...
Guide Price: £170.60
£204.72 inc VAT
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100mm Unilin FR/MG Flat Roof Board - pack of 5 100mm Unilin FR/MG Flat Roof Board - pack of 5
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Brand: Unilin (prev. Xtratherm) Model and Size: 1200mm x 1200mm - 7.20m2
Delivery Time: 3 - 5 days
100mm Unilin FR/MG is a high performance PIR core with mineral coated glass facers suitable for use below single ply waterproofing systems and partially bonded built-up felt. It is compatible with adhesively bonded single ply roofing membranes laid on mechanically fixed ..
Guide Price: £154.90
£185.88 inc VAT
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Brand: Unilin (prev. Xtratherm) Model and Size: 1200x450mm - 2.16m2
Delivery Time: 2 - 3 working days
100mm Unilin Safe-R SR/CW Phenolic Foam Insulation Board is a superior performance rigid partial fill cavity insulation board with enhanced fire performance, consisting of an Euroclass D-s1, d0 phenolic foam core with negligible smoke obscuration. Unilin Safe-R SR/CW is faced with low emissivity alu..
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Brand: Unilin (prev. Xtratherm) Model and Size: 2400x1200mm - 11.52m2
Delivery Time: 2 - 3 working days
100mm Unilin Safe-R SR/FB Phenolic foam is a superior performance rigid insulation framing board with enhanced fire performance, consisting of an Euroclass B-s1, d0 phenolic foam core with negligible smoke obscuration. Unilin Safe-R SR is faced with low emissivity aluminium facings both sides, and h..
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100mm Unilin Safe-R SR/PR Phenolic Insulation Board (pack of 4) - Pitched Roof Insulation - 2400mm x 1200mm 100mm Unilin Safe-R SR/PR Phenolic Insulation Board (pack of 4) - Pitched Roof Insulation - 2400mm x 1200mm
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Brand: Unilin (prev. Xtratherm) Model and Size: 2400mm x 1200mm - 11.52m2
Delivery Time: 7 - 10 days
100mm Unilin Safe-R SR/PR Phenolic Foam Insulation Board is a superior performance rigid insulation for pitched roofs 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 ha..
Guide Price: £451.66
£541.99 inc VAT
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Brand: Unilin (prev. Xtratherm) Model and Size: 2400x1200mm - 11.52m2
Delivery Time: 2 - 3 working days
100mm Unilin Safe-R SR/ST Phenolic foam is a superior performance rigid insulation soffit board with enhanced fire performance, consisting of a C-s1, d0 phenolic foam core with negligible smoke obscuration. Unilin Safe-R SR/ST is faced with low emissivity aluminium facings both sides, and has a ther..
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Brand: Unilin (prev. Xtratherm) Model and Size: 2400x1200mm - 11.52m2
Delivery Time: 2 - 3 working days
100mm Unilin Safe-R SR/UF Phenolic foam is a superior performance rigid underfloor insulation with enhanced fire performance, consisting of an Euroclass D s1 d0 phenolic foam core with negligible smoke obscuration. Unilin Safe-R SR/UF is faced with low emissivity aluminium facings both sides, and ha..
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Brand: Unilin (prev. Xtratherm) Model and Size: 1200x600mm - 1.44m2
Delivery Time: 1-3 working days
100mm Unilin Stonewool SW/RS Insulation Slab is a non-combustible Euroclass A1 stone wool insulation used as ventilated rainscreen façade and framing applications and curtain walling. Unilin Stonewool SW/RS insulation provides a uniform, high density solution providing resilience during the bui..
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100mm Unilin Thin-R CT/PIR CavityTherm Full Fill Insulation (pack of 4) 100mm Unilin Thin-R CT/PIR CavityTherm Full Fill Insulation (pack of 4)
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Brand: Unilin (prev. Xtratherm) Model and Size: 1200mm x 450mm - 2.16m2
Delivery Time: 1-3 working days
100mm Unilin CavityTherm wall insulation board is a high performance composite board of enhanced PIR core with a lambda value of 0.021W/mK. The boards have gas tight facings with one face bonded to a profiled HIPS skin during manufacture to provide a drainage plane. Unilin CavityTherm's unique ..
Guide Price: £88.87
£106.64 inc VAT
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Brand: Unilin (prev. Xtratherm) Model and Size: 2400x1200mm - 11.52m2
Delivery Time: 1-3 working days
100mm Unilin Thin-R FR/ALU Flat Roof PIR Insulation Board is a flat roof insulation with enhanced vapour resistant performance. Unilin Thin-R FR/ALU board is faced with low emissivity aluminium facings both sides. Rot proof and will remain effective for the life span of the building. Unilin Thin-R F..
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Brand: Unilin (prev. Xtratherm) Model and Size: 1200x2400mm - 11.52m2
Delivery Time: 1-3 working days
100mm Unilin Thin-R Hyfloor XT/HYF is a high performance floor Insulation board with superior thickness to performance ratio allowing the lower targets required under the new Building Regulations to be achieved with minimum thicknesses. Unilin Thin-R Hyfloor XT/HYF is a high performance foil faced P..
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100mm Unilin Thin-R XT/CW Partial Fill Cavity Insulation Board (pack of 4) 100mm Unilin Thin-R XT/CW Partial Fill Cavity Insulation Board (pack of 4)
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Brand: Unilin (prev. Xtratherm) Model and Size: 1200x450mm - 2.16m2
Delivery Time: 2 - 4 days
100mm Unilin ThinR XT/CW Partial Fill Cavity Wall Insulation Board is a PIR insulation board with a high thermal performance whilst maintaining a residual cavity in the external walls. This board achieves high standards of insulation with a certified thermal conductivity of 0.022W/mK with the option..
Guide Price: £37.81
£45.37 inc VAT
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Brand: Unilin (prev. Xtratherm) Model and Size: 1250x600mm - 3.0m2
Delivery Time: 2 - 3 working days
100mm Unilin XPS 300 is an extremely durable heavy duty thermal insulation board made of extruded polystyrene offering exceptional thermal performance and versatility. It is a lightweight board that is able to withstand extreme loads. It has a rebated edge.CHARACTERISTICSExtremely strong,Compressive..
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Brand: Unilin (prev. Xtratherm) Model and Size: 1250x600mm - 3m2
Delivery Time: 2 - 3 working days
100mm Unilin XPS 500 is an extremely durable heavy duty thermal insulation board made of extruded polystyrene offering exceptional thermal performance and versatility. It is a lightweight board that is able to withstand extreme loads. It has a rebated edge.CHARACTERISTICSExtremely strong,Compressive..
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Brand: Unilin (prev. Xtratherm) Model and Size: 1250x600mm - 3m2
Delivery Time: 2 - 3 working days
100mm Unilin XPS 700 is an extremely durable heavy duty thermal insulation board made of extruded polystyrene offering exceptional thermal performance and versatility. It is a lightweight board that is able to withstand extreme loads. It has a rebated edge.CHARACTERISTICSExtremely strong,Compressive..
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100mm Unilin XT/PR-UF PIR Rigid Insulation Board - 1200mm x 2400mm 100mm Unilin XT/PR-UF PIR Rigid Insulation Board - 1200mm x 2400mm
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Brand: Unilin (prev. Xtratherm) Model and Size: 2400mm x 1200mm - 2.88m2
Delivery Time: 1-3 working days
100mm Unilin Thin-r XT/PR-UF has a core of polyisocyanurate (PIR) bonded to low emissivity textured aluminium foil facings. Unilin XT/PR-UF board offers excellent insulation performance with excellent thermal conductivity. Unilin XT/PR-UF is CFC & HCFC free and is manufactured under the hig..
Guide Price: £37.87
£45.44 inc VAT
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100mm Unilin XT/TF PIR Rigid Insulation Board - Timber Framed Walls - 1200mm x 2400mm 100mm Unilin XT/TF PIR Rigid Insulation Board - Timber Framed Walls - 1200mm x 2400mm
Guide Price
Brand: Unilin (prev. Xtratherm) Model and Size: 2400mm x 1200mm - 2.88m2
Delivery Time: 1-3 working days
100mm Unilin Thin-r XT/TF has a core of polyisocyanurate (PIR) bonded to low emissivity textured aluminium foil facings for use in timber framed walls. Unilin XT/TF board offers excellent insulation performance with excellent thermal conductivity. Unilin XT/TF is CFC & HCFC free and is manu..
Guide Price: £37.87
£45.44 inc VAT
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Brand: Unilin (prev. Xtratherm) Model and Size: 1200x450mm - 2.16m2
Delivery Time: 1-3 working days
100mm Unilin XtroLiner XO/CW board has a tongue and groove core of modified polyisocyanurate (PIR) bonded to low emissivity aluminium foil facings offering excellent insulation performance with thermal conductivity. Unilin XtroLiner XO/CW board reduces the junctions prone to thermal bridging im..
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Brand: Unilin (prev. Xtratherm) Model and Size: 1200x2400mm - 11.52m2
Delivery Time: 1-3 working days
100mm Unilin XtroLiner XO/PR board has a core of modified polyisocyanurate (PIR) bonded to low emissivity textured aluminium foil facings. Unilin XtroLiner XO/PR board offers excellent insulation performance with excellent thermal conductivity. Unilin XtroLiner XO/PR is CFC & HCFC free and is ma..
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Brand: Unilin (prev. Xtratherm) Model and Size: 1200x2400mm - 11.52m2
Delivery Time: 1-3 working days
100mm Unilin XtroLiner XO/SK board has a tongue and groove core of modified polyisocyanurate (PIR) bonded to low emissivity aluminium foil facings offering excellent insulation performance with thermal conductivity. Unilin XtroLiner XO/SK board reduces the junctions prone to thermal bridging im..
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