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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: Celotex Model and Size: 1200mm x 450mm - 3.78m2
Delivery Time: 1 - 5 working days
65mm 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..
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Brand: Celotex Model and Size: 1200x450mm - 3.78m2
Delivery Time: 1 - 5 working days
70mm 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..
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Brand: Celotex Model and Size: 1200mm x 450mm - 4.32m2
Delivery Time: 1 - 5 working days
75mm 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..
£52.55
£63.06 inc VAT
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Brand: Celotex Model and Size: 1200mm x 450mm - 3.24m2
Delivery Time: 1 - 5 working days
80mm 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..
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85mm Celotex CW4085 - Rigid PIR Cavity Insulation Board (pack of 7) CW4000
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Brand: Celotex Model and Size: 1200mm x 450mm - 3.78m2
Delivery Time: 1 - 5 working days
85mm 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: £74.33
£89.20 inc VAT
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Brand: Celotex Model and Size: 1200mm x 450mm - 2.70m2
Delivery Time: 1 - 5 working days
90mm 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..
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Brand: Celotex Model and Size: 1200mm x 450mm - 3.24m2
Delivery Time: 2 - 3 working days
100mm 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 rig..
£51.25
£61.50 inc VAT
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35mm Xtratherm Thin-R XT/CW Partial Fill Cavity Insulation (pack of 9)
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Brand: Xtratherm Model and Size: 1200x450mm - 4.86m2
Delivery Time: 2 - 4 days
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..
Guide Price: £52.64
£63.17 inc VAT
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40mm Xtratherm Thin-R XT/CW Partial Fill Cavity Insulation (pack of 9)
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Brand: Xtratherm Model and Size: 1200x450mm - 4.86m2
Delivery Time: 2 - 4 days
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..
Guide Price: £76.47
£91.76 inc VAT
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100mm Thin-R CT/PIR Cavity Therm Full Fill Insulation Xtratherm (pack of 4)
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Brand: Xtratherm Model and Size: CT/PIR 1200x450 - 2.16m2
Delivery Time: 1-3 working days
100mm Xtratherm 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. CavityTherms unique engin..
Guide Price: £88.53
£106.24 inc VAT
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125mm Thin-R CT/PIR Cavity Therm Full Fill Insulation Xtratherm (pack of 4)
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Brand: Xtratherm Model and Size: CT/PIR 1200x450 - 2.16m2
Delivery Time: 1-3 working days
125mm Xtratherm 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. CavityTherms unique engin..
Guide Price: £130.68
£156.82 inc VAT
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45mm Xtratherm Thin-R XT/CW Partial Fill Cavity Insulation (pack of 9)
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Brand: Xtratherm Model and Size: 1200x450mm - 4.86m2
Delivery Time: 2 - 4 days
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..
Guide Price: £65.30
£78.36 inc VAT
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Brand: Xtratherm Model and Size: CT/PIR 1200x450 - 2.16m2
Delivery Time: 1-3 working days
75mm Xtratherm 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. CavityTherms unique engineered ..
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50mm Thin-R XT/CW Partial Fill Cavity Insulation Xtratherm (pack of 9)
Guide Price
Brand: Xtratherm Model and Size: 1200x450mm - 4.86m2
Delivery Time: 2 - 4 days
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..
Guide Price: £43.43
£52.12 inc VAT
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125mm DriTherm 32 Ultimate Cavity Slab Knauf (pack of 4) 125mm DriTherm 32 Ultimate Cavity Slab Knauf (pack of 4)
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Brand: Knauf Model and Size: 1200x455mm - 2.18m2
Delivery Time: 8 - 12 weeks
125mm Knauf DriTherm 32 Ultimate 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 eff..
Guide Price: £44.66
£53.59 inc VAT
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85mm DriTherm 32 Ultimate Cavity Slab Knauf (pack of 5) 85mm DriTherm 32 Ultimate Cavity Slab Knauf (pack of 5)
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Brand: Knauf Model and Size: 1200x455mm - 2.73m2
Delivery Time: 3 - 5 weeks
85mm Knauf DriTherm 32 Ultimate 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 effi..
Guide Price: £41.76
£50.11 inc VAT
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Brand: Knauf Model and Size: 1200x455mm - 3.28m2
Delivery Time: 3 - 5 days
100mm Knauf DriTherm 32 Ultimate 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 eff..
£44.20
£53.04 inc VAT
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125mm DriTherm 37 Standard Cavity Slab Knauf (pack of 6) 125mm DriTherm 37 Standard Cavity Slab Knauf (pack of 6)
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Brand: Knauf Model and Size: 1200x455 - 3.28m2
Delivery Time: 3 - 5 days
125mm Knauf DriTherm 37 Standard 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 eff..
Guide Price: £32.22
£38.66 inc VAT
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150mm DriTherm 37 Standard Cavity Slab Knauf (pack of 8) 150mm DriTherm 37 Standard Cavity Slab Knauf (pack of 8)
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Brand: Knauf Model and Size: 1200x455 - 4.37m2
Delivery Time: 3 - 5 days
150mm Knauf DriTherm 37 Standard 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 eff..
Guide Price: £43.47
£52.16 inc VAT
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50mm DriTherm 37 Standard Cavity Slab Knauf (pack of 12) 50mm DriTherm 37 Standard Cavity Slab Knauf (pack of 12)
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Brand: Knauf Model and Size: 1200x455 -6.55m2
Delivery Time: 3 - 5 days
50mm Knauf DriTherm 37 Standard 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 effi..
Guide Price: £28.39
£34.07 inc VAT
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Brand: Knauf Model and Size: 1200x455 - 5.46m2
Delivery Time: 3 - 5 days
65mm Knauf DriTherm 37 Standard 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 effi..
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75mm DriTherm 37 Standard Cavity Slab Knauf (pack of 8) 75mm DriTherm 37 Standard Cavity Slab Knauf (pack of 8)
Guide Price
Brand: Knauf Model and Size: 1200x455 - 4.37m2
Delivery Time: 3 - 5 days
75mm Knauf DriTherm 37 Standard 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 effi..
Guide Price: £31.69
£38.03 inc VAT
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85mm DriTherm 37 Standard Cavity Slab Knauf (pack of 8) 85mm DriTherm 37 Standard Cavity Slab Knauf (pack of 8)
Guide Price
Brand: Knauf Model and Size: 1200x455 (4.37m2)
Delivery Time: 3 - 5 days
85mm Knauf DriTherm 37 Standard 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 effi..
Guide Price: £25.25
£30.30 inc VAT
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Brand: Knauf Model and Size: 1200 x 455 (6.55m2)
Delivery Time: 1 - 2 days
100mm Knauf DriTherm 37 Standard 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 eff..
£42.30
£50.76 inc VAT
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Brand: Celotex Model and Size: 1200x2400mm - 2.88m2
Delivery Time: 2 - 3 working days
Celotex PL4025 is a high performance thermal insulation board where the 25mm PIR insulation is bonded to 12.5mm tapered edge plasterboard. PL4000 range is manufactured from rigid polyisocyanurate (PIR) using a blend of blowing agents that have zero ozone depletion potential (zero ODP) and low global..
£43.85
£52.62 inc VAT
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Brand: Celotex Model and Size: 1200x2400mm - 2.88m2
Delivery Time: 1-3 working days
52.5mm Celotex PL4040 is a high-performance thermal insulation board with PIR insulation bonded to 12.5mm tapered edge plasterboard. It is made from rigid polyisocyanurate (PIR) using blowing agents that have zero ozone depletion potential (zero ODP) and low global warming potential (GWP). Note: ..
£53.21
£63.85 inc VAT
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Brand: Celotex Model and Size: 1200x2400mm - 2.88m2
Delivery Time: 1 - 5 working days
57.5mm Celotex PL4045 is a high-performance thermal insulation board with PIR insulation bonded to 12.5mm tapered edge plasterboard. It is made from rigid polyisocyanurate (PIR) using blowing agents that have zero ozone depletion potential (zero ODP) and low global warming potential (GWP). Note: ..
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Brand: Celotex Model and Size: 1200x2400mm - 2.88m2
Delivery Time: 2 - 3 working days
62.5mm Celotex PL4050 is a high-performance thermal insulation board with 50mm PIR insulation bonded to 12.5mm tapered edge plasterboard. It is made from rigid polyisocyanurate (PIR) using blowing agents that have zero ozone depletion potential (zero ODP) and low global warming potential (GWP). N..
£60.07
£72.08 inc VAT
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Brand: Celotex Model and Size: 1200x2400mm - 2.88m2
Delivery Time: 1 - 5 working days
67.5mm Celotex PL4055 is a high-performance thermal insulation board where the PIR insulation is bonded to 12.5mm tapered edge plasterboard. It is manufactured from rigid polyisocyanurate (PIR) using a blend of blowing agents that have zero ozone depletion potential (zero ODP) and low global warming..
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Brand: Celotex Model and Size: 1200x2400mm - 2.88m2
Delivery Time: 2 - 3 working days
72.5mm Celotex PL4060 is a high-performance thermal insulation board where the 60mm PIR insulation is bonded to 12.5mm tapered edge plasterboard. PL4000 is manufactured from rigid polyisocyanurate (PIR) using a blend of blowing agents that have zero ozone depletion potential (zero ODP) and low globa..
£62.61
£75.13 inc VAT
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