Floors & Screeds
182 sources in the library on floors & screeds. Each one says what the document covers and what it is good for. Name a source to see which document it is and where to read it. One at a time. Page 5 of 5.
- supplier figure RN-5EVKJ2
SOPREMA UK (Celotex)
PIR insulation board with aluminium foil facings on both sides, boards 2400 x 1200 mm. Declared thermal conductivity (lambda D) 0.022 W/mK. Thickness range 50 mm to 100 mm. Compressive strength 140 kPa. BBA Certificate 25/7318 covers pitched roof, dry lining and floor insulation. Fire: SOPRATHERM GA4000 achieves a reaction to fire classification of Euroclass F in accordance with BS EN 13501-1.
- supplier figure RN-AHY1GO
SOPREMA UK (Celotex)
Thick PIR insulation board with aluminium foil facings, boards 2400 x 1200 mm. Declared thermal conductivity (lambda D) 0.022 W/mK. Thickness range 110 mm to 200 mm. Compressive strength 140 kPa. BBA Certificate 25/7318 covers pitched roof, dry lining and floor insulation. Fire: SOPRATHERM XR4000 achieves a reaction to fire classification of Euroclass F in accordance with BS EN 13501-1.
- supplier figure RN-K15VG3
STEICO
STEICOjoist is an I-joist to European Technical Approval ETA-20/0995 for floor joists, rafters or wall studs, with a natural wood fibreboard web 39 mm thick and laminated veneer lumber STEICO LVL R flanges. Three flange widths: SJ 45 in heights 160, 200, 220, 240, 300, 360 and 400 mm at 43 pieces per package; SJ 60 in heights 160 to 500 mm at 33 per package; SJ 90 in heights 220 to 500 mm at 23 per package. Heights range 160 mm to 500 mm overall. Every I-joist is also available with a factory pre-insulated web, which gives a uniform rectangular cross section so STEICOflex batts fit without cutting. STEICO LVL is built from 3 mm graded veneers, CE certified and manufactured to EN 14374: LVL R has all veneers longitudinal, LVL X has about one fifth crosswise. The system is certified by the Passive House Institute.
- supplier figure RN-0LR8HS
STEICO
Characteristic strength and stiffness in N/mm2. STEICO LVL R: bending edgewise parallel fm,0,edge,k 44 at 300 mm depth with size effect s = 0.15, flatwise parallel 50, tension parallel ft,0,k 36, tension perpendicular edgewise 0.9, compression parallel fc,0,k 40, compression perpendicular edgewise 7.5. STEICO LVL X at 24 mm or less: bending edgewise 30, perpendicular edgewise 10, flatwise 32; at 27 mm and above 32, 8 and 36. Span tables to BS EN 1995-1-1 for maximum single clear span in metres at final deflection L/250 and fundamental frequency above 8 Hz, live load 1.5 kN/m2: SJL 45 at 240 mm deep spans 4.785 m at 300 mm centres and 4.240 m at 600 mm centres with a 0.75 kN/m2 dead load; SJL 60 at 400 mm deep spans 6.850 m at 300 centres and 6.120 m at 600; SJL 90 at 400 mm deep spans 7.495 m at 300 centres and 6.685 m at 600. Floor tables are service class 1, roof tables service class 2, and double-span tables follow.
- supplier figure RN-8K0ODQ
Superglass (Etex)
Non combustible glass mineral wool acoustic roll, partially perforated at 2 x 600 mm and 3 x 400 mm widths for friction fitting between common stud and joist spacings. Manufactured at a minimum density of 10 kg/m3. Declared thermal conductivity (lambda) 0.044 W/mK. Fire classification: Euroclass A1 when tested to EN 13501-1:2018 Reaction to Fire. CCPI Assessment Mark certificate 005800127/0227. For internal walls and floors, timber and metal stud partitions, separating walls and floors.
- supplier figure RN-21LSOA
Superglass (Etex)
Non combustible glass mineral wool roll, partially perforated for use between standard joist spacings or as a full width layer over the joists. Declared thermal conductivity (lambda) 0.040 W/mK. Fire classification Euroclass A1 when tested to EN 13501-1:2018 Reaction to Fire. CCPI Assessment Mark certificate 005800129/0227. Primarily for lofts and cold pitched roofs, also used between the joists of suspended timber ground floors.
- supplier figure RN-NEMR6H
Superglass (Etex)
Non combustible glass mineral wool roll cut at 2 x 570 mm widths to friction fit between common stud and rafter spacings. Declared thermal conductivity (lambda) 0.032 W/mK. Fire classification: Euroclass A1 when tested to EN 13501-1:2018 Reaction to Fire. CCPI Assessment Mark certificate 005800130/0227. Intended for external timber frame walls, warm pitched roofs and suspended timber floors.
- supplier figure RN-6TAMOI
Superglass (Etex)
Non combustible glass mineral wool roll for external timber frame walls, warm pitched roofs and suspended timber floors. Declared thermal conductivity (lambda) 0.035 W/mK. Fire classification Euroclass A1 when tested to EN 13501-1:2018 Reaction to Fire. CCPI Assessment Mark certificate 005800130/0227.
- supplier figure RN-TOS2R5
Thermafleece (Eden Renewable Innovations Ltd)
High density sheep wool rich insulation slab, 75% wool with recycled fibres, 20 to 25% recycled content. Density 31 kg/m3. Thermal conductivity 0.035 W/mK. Slabs 1200 mm long in 390 and 590 mm widths, thicknesses 50, 70 and 90 mm with a plus or minus 5 mm tolerance. Published thermal resistance (m2K/W): 50 mm 1.43, 70 mm 2.00, 100 mm 2.86, 140 mm 4.00, 190 mm 5.43, 240 mm 6.86. Fire Classification EuroClass E; flammability and smoulder resistance to BS 5803-4 pass. Vapour resistivity 9 MNs/gm. Specific heat capacity 1800 J/kgK. Water absorption at 100% RH 24% w/w. Sound reduction Rw 41 dB, NRC 1.10 at 90 mm. Dimensional stability to EN 1604 pass, EPD registration S-P-04468. Cradle to gate A1-A3 carbon 0.05 kg CO2e per functional unit. Thermafleece states UltraWool is not suitable for use as a cavity barrier.
- supplier figure RN-WYD11B
Unilin Insulation (formerly Xtratherm)
Rigid polystyrene board cut from moulded blocks, 2400 x 1200 mm and 1800 x 1200 mm. Thermal conductivity 0.035 W/mK. Compressive strength CS(10Y) 100 kPa. Thickness tolerance class T2. Reaction to fire: Euroclass F. Covered by BBA 24/7224 (2024), with a DoP and an EPD published on the same page.
- supplier figure RN-KVHEN8
Unilin Insulation (formerly Xtratherm)
Phenolic soffit insulation board with composite foil facings, 2400 x 1200 mm, thicknesses 75, 80, 100 and 120 mm. Thermal conductivity 0.019 W/mK. Compressive strength CS(10Y) 100 kPa. Reaction to fire: Euroclass C-s2, d0. Typical U-values to EN ISO 6946:2017 on a 200 mm concrete soffit: 75 mm 0.25, 80 mm 0.23, 100 mm 0.19, 120 mm 0.16 W/m2K.
- supplier figure RN-9MR12L
Unilin Insulation (formerly Xtratherm)
Jointed PIR floor board with composite foil facers both sides, 2400 x 1200 mm, thicknesses 75, 100, 125, 140 and 150 mm. Thermal conductivity 0.021 W/mK. Compressive strength 140 kPa. Reaction to fire: Euroclass F. Typical ground supported floor U-values to EN ISO 6946:2017 vary with the perimeter to area ratio; at 75 mm the U-value runs 0.17 W/m2K at P/A 0.30 up to 0.21 W/m2K at P/A 0.80.
- supplier figure RN-4TS29G
Unilin Insulation (formerly Xtratherm)
Rigid extruded polystyrene board, 1250 x 600 mm, thicknesses 30, 40, 50, 60, 80, 100, 120, 140 and 160 mm. Thermal conductivity 0.033 to 0.035 W/mK. Compressive strength CS(10Y) 300 kPa. Reaction to fire: Euroclass E. Published R-values (m2K/W): 30 mm 0.90, 40 mm 1.20, 50 mm 1.50, 60 mm 1.80, 80 mm 2.25, 100 mm 2.85, 120 mm 3.40, 140 mm 4.00, 160 mm 4.25. The range is also available in 500 kPa and 700 kPa grades.
- supplier figure RN-CMGNLX
Unilin Insulation (formerly Xtratherm)
High performance extruded polystyrene board, 1250 x 600 mm, thicknesses 30, 40, 50, 60, 80, 100 and 120 mm. Thermal conductivity 0.033 to 0.035 W/mK. Compressive strength CS(10Y) 500 kPa. Reaction to fire: Euroclass E. Published R-values (m2K/W): 30 mm 0.90, 40 mm 1.20, 50 mm 1.50, 60 mm 1.80, 80 mm 2.25, 100 mm 2.85, 120 mm 3.40.
- supplier figure RN-IK7GCU
Visqueen (British Polythene)
Black polyethylene damp proof membrane made from a minimum 85% recycled polyethylene. Three thicknesses: 0.25 mm and 0.3 mm both supplied 4 m x 25 m, and 0.5 mm supplied 4 m x 12.5 m. All rolls are multi folded. BBA certified. Visqueen state clearly that this product is NOT accredited for radon applications and direct radon work to Visqueen Ultimate RadonBlok 600 or Radon R400 instead.
- supplier figure RN-A3B2LI
Visqueen (British Polythene)
Multi-layer reinforced polyethylene gas barrier incorporating a 20 micron aluminium foil, blue on the upper face and silver on the reverse. Supplied in single wound (not folded) rolls, 2 m x 50 m. Compliant with the methane gas transmission rate, mass per unit area and thickness requirements of BS 8485:2015 + A1:2019, and with NHBC Foundation NF94 guidance for Type A membrane locations provided there is no contact with uncured concrete or screed. Also serves as a radon barrier and damp proof membrane. Lap joints can be heat welded or taped depending on specification. BBA certified.
- supplier figure RN-EDUON2
Visqueen (British Polythene)
Robust co-polymer thermoplastic membrane, 0.5 mm thick, yellow, supplied 4 m x 12.5 m centre folded, which Visqueen say reduces the risk of cracks in screed and limits creases. Lap joints can be taped or heat welded. Sulphate resistant: when installed with heat welded joints it is suitable for DS classifications 1 to 5 under ACEC. BBA certified.
- supplier figure RN-ZBQNLC
Visqueen (British Polythene)
Black flexible co-polymer thermoplastic damp proof course and cavity tray, 0.8 mm thick, made from thermoplastic polymers with elastomer additives. Visqueen state explicitly that the product does not conform to BS 6515:1984. Supplied in 20 m rolls in widths 100, 112.5, 150, 225, 300, 337.5, 450, 500, 600, 700, 750, 800, 900, 1000, 1200 and 1400 mm. BBA certified, assessed to NHBC Technical Requirement R3. Gas resistant as part of the Visqueen Low Permeability Gas Membrane system to NHBC Amber 1, and used with Visqueen radon membranes for radon protection. System components include the Zedex DPC surface fixing system, HP Tanking Primer 5 L, VisqueenPro detailing strip 300 mm x 10 m, DPC joint support and 100 mm double sided butyl tape 100 mm x 15 m.
- supplier figure RN-3IUFF1
Wunda Group
Manufacturer figures for wet underfloor heating. Water underfloor heating runs at 35-45C flow against 60-80C for a radiator circuit, which is the reason it suits a heat pump without a temperature penalty. Wunda states wet underfloor heating costs about 60 per cent less to run than electric underfloor heating and is better suited to a larger room or area. On installation effort the manufacturer states 75 m2 could be laid over a weekend by a competent installer. The 35-45C figure is the number to quote whenever a note explains why underfloor heating and heat pumps are paired.
- supplier figure RN-KX2RTH
Wykamol Group
CM20 is a 20 mm studded HDPE membrane, black, for high water volumes on floors, walls, vaults and tunnels. Unit weight 1 kg/m2, sheet thickness 1 mm, stud height 20 mm. Supplied in 2 m x 20 m and 2 m x 10 m rolls, the latter kept to 20 kg. Water tightness at 60 kPa for 24 h pass to EN 1928, working temperature -50 to +80 C, softening 126 C, tensile strength MD 416 N and CD 488 N, static loading resistance over 20 kg, compressive strength 170 kN/m2, reaction to fire Class E to BS EN 13501-1:2007+A1:2009, Type V, life expectancy the lifetime of the structure. Sheets overlap by three studs and stud-to-stud joints are overlapped by at least two rows. Wykamol note CM20 requires a minimum slope of 10%.
- supplier figure RN-KKVM5F
Wykamol Group
CM3 Mesh is a 3 mm studded HDPE membrane with a tough HDPE mesh lathing welded to the front face so plaster, adhesive dabs and plasterboard can be applied direct. It delivers a Grade 3 environment to BS 8102:2009 and NHBC Chapter 5.4. Unit weight 0.505 kg/m2, sheet thickness 0.6 mm, stud height 3 mm, clear. Water tightness at 60 kPa for 24 h pass to EN 1928. Working temperature -50 to +80 C, softening 126 C, tensile strength MD 416 N and CD 488 N, static loading resistance over 20 kg, compressive strength 250 kN/m2 (the highest of the Wykamol cavity drain range), reaction to fire Class E, Type V, life expectancy the lifetime of the structure. Plaster finish: a lightweight coat filling the studs and covering the mesh at a minimum 8 mm covering at least 50% of the membrane, then a second coat to a final overall thickness of 15 mm.
- supplier figure RN-QIXU2P
Wykamol Group
CM8 is an 8 mm studded HDPE cavity drain membrane, clear. Unit weight 0.5 kg/m2, sheet thickness 0.45 mm, stud height 7 mm. Water tightness at 60 kPa for 24 h pass to EN 1928. Working temperature -50 to +80 C, softening temperature 126 C. Tensile strength MD 416 N and CD 488 N to BS 12311-2, resistance to static loading over 20 kg to BS 12730, compressive strength 180 kN/m2 to BS EN ISO 25619-2, reaction to fire Class E to BS EN 13501-1, Type V application, life expectancy the lifetime of the structure. Fixed studs-facing-the-wall with Wykamol plaster or brick plugs, holes drilled through the centre of a stud, stud-to-stud joints sealed with Wykamol Rope. Where a stud frame finish is used, battens are a minimum 25 x 38 mm fixed with No. 10 (5 mm) screws.