References

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 4 of 5.

1. supplier figure RN-YI7C4M

   Karndean Designflooring

   The manufacturer's own definition of a lifetime flooring warranty, which is the detail a buyer needs. Karndean states that Lifetime is defined as 35 years. Residential cover is Lifetime across every range, but the commercial and light commercial periods vary by collection: Art Select 20 years, Solid Colours 3.0 mm 20 years, Heritage 15 years, Karndean LooseLay 15 years, Opus and Opus Enhance 15 years, Solid Colours 2.5 mm 15 years, Van Gogh 15 years, Korlok and Korlok Regent 15 years, and Kaleidoscope, Knight Tile, Knight Tile Rigid Core and Knight Tile Quiet only 10 years. Several ranges marked with an asterisk carry no light commercial cover at all. The 35 year definition is the single most quotable figure here, because a lifetime warranty on flooring is commonly assumed to be open ended.

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2. supplier figure RN-Q7RRFY

   Karndean Designflooring

   Manufacturer product data for a Karndean rigid core LVT plank. It uses a 5G vertical click locking system installed without adhesive, cutting substrate preparation compared with a glue down floor. The manufacturer states the floor is suited to underfloor heating systems up to 27C, which is the surface temperature limit that governs how an LVT floor and a heat pump underfloor system have to be designed together. All Karndean residential floors carry a 35 year warranty.

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3. supplier figure RN-Q3AE0Z

   Kingspan Insulation

   Extruded polystyrene (XPS) boards, 1250 x 600 mm. Declared compressive strength: GG300 is 300 kPa and GG500 is 500 kPa when tested to BS EN 826. Declared thermal conductivity: GG300 0.033 W/mK across 30 to 180 mm; GG500 0.034 W/mK at 50 mm and 0.036 W/mK at 80 and 100 mm. Fire: under System 4 AVCP, Kingspan GreenGuard has a Euroclass rating of F.

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4. supplier figure RN-XRAN8X

   Kingspan Insulation

   Rock mineral fibre soffit slab, 1200 x 600 mm, nominal density approximately 90 kg/m3. Thermal conductivity 0.036 W/mK. Average compressive stress exceeds 20 kPa when tested to BS EN 826: 2013. Published R-values (m2K/W): 100 mm 2.75, 120 mm 3.30, 150 mm 4.15, 180 mm 5.00, 200 mm 5.55. Fire: achieves European Classification (Euroclass) A1 when classified to EN 13501-1: 2018.

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5. supplier figure RN-J1Q1DY

   Kingspan Insulation

   Fibre-free rigid thermoset phenolic floorboard, glass tissue faced both sides, to BS EN 13166: 2012 + A2: 2016. Thermal conductivity 0.019 W/mK. Compressive strength 120 kPa to BS EN 826: 2013. Water vapour resistivity typically greater than 370 MNs/gm to BS EN 12086: 2013 (Pembridge production). Board 2.4 m x 1.2 m; BBA Certificate 16/5299 covers 25 to 150 mm. Published R-values (m2K/W): 25 mm 1.30, 40 mm 2.10, 50 mm 2.60, 60 mm 3.15, 70 mm 3.65, 75 mm 3.90, 80 mm 4.20, 90 mm 4.70, 100 mm 5.25, 120 mm 6.30, 130 mm 6.80, 140 mm 7.35, 150 mm 7.85. Fire: K103 achieves European Classification (Euroclass) C-s2,d0 when classified to EN 13501-1: 2018, assessed under AVCP System 1 for reaction to fire, certificates 1812-CPR-2093 (EU) and 2822-UKCA-CPR-0094 (UK).

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6. supplier figure RN-M0UROF

   Kingspan Insulation

   Phenolic soffit board with a glass tissue inner facing and a 6 mm A1 Euroclass building board as the outer exposed facing, 2400 x 1200 mm. Insulation core thermal conductivity 0.019 W/mK; the building board component is 0.27 W/mK. Declared compressive strength 100 kPa when tested to BS EN 826: 2013. Fire: K110 PLUS achieves European Classification (Euroclass) B-s1,d0 when the outer exposed 6 mm building board is exposed to the heat source, classified to EN 13501-1:2018.

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7. supplier figure RN-0N640V

   Kingspan Insulation

   Phenolic soffit board with a glass tissue inner facing and a low emissivity composite foil outer facing. Declared compressive strength 100 kPa to BS EN 826: 2013. BBA Certificate covers thicknesses 65 to 120 mm. Published R-values (m2K/W): 65 mm 3.40, 70 mm 3.65, 75 mm 3.90, 80 mm 4.20, 85 mm 4.45, 90 mm 4.70, 100 mm 5.25, 110 mm 5.75, 120 mm 6.30, consistent with a 0.019 W/mK lambda. Fire: K110 achieves European Classification (Euroclass) B-s2,d0 when the outer exposed composite foil facing is exposed to the heat source, classified to EN 13501-1: 2018; the inner non-exposed glass tissue facing achieves C-s2,d0 when exposed to the heat source.

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8. supplier figure RN-KFPK7L

   Kingspan Insulation

   Fibre-free rigid thermoset polyisocyanurate (PIR) floor board to BS EN 13165: 2012 + A2: 2016, foil faced both sides, for solid concrete and suspended ground floors. Declared thermal conductivity 0.022 W/mK. Declared compressive stress 120 kPa at 10% compression to BS EN 826. Water vapour resistance to BS EN 12086 greater than 50 MNs/g for the insulation core and greater than 100 MNs/g for the composite foil facing. R-values are thickness divided by 0.022 rounded down to the nearest 0.05 m2K/W. Fire: under System 4 AVCP, TF70 has a Euroclass rating of F.

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9. supplier figure RN-IWZXA3

   Knauf Insulation

   Glass mineral wool acoustic roll for internal wall and floor applications, made with ECOSE Technology. Manufactured density in excess of 10 kg/m3 to meet building regulations, and tested with all major brands of plasterboard for compliance with Part E. Reaction to fire A1 to EN 13501-1. Supplied 1200 mm wide: 25 mm x 11,100 mm (26.64 m2 per roll), 50 mm x 13,500 mm (16.20 m2), 63 mm x 15,000 mm (18.00 m2), 75 mm x 14,500 mm (17.40 m2), plus 100 mm.

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10. supplier figure RN-CPQ4FF

    LKAB Minerals (Gypsol)

    Gypsol anhydrite screed range. Minimum depths: 40 mm floating commercial, 35 mm floating domestic, 15 mm unbonded and 15 mm bonded for TS-15 and Rapide, 20 mm minimum for TS-20, and 15 mm cover to underfloor heating pipes for HTC and Rapide. Strength range C25 to C35 and F4 to F6, independently tested at 50 mm depth, 20 C and 60% RH. Fully self compacting and high density at just 40 mm. Underfloor heating can be commissioned and run after seven days. Gypsol Zero Laitance (ZL) removes the need to sand off laitance. Named products in the range include the general purpose system, TS-15 ultra-thin for bonded and unbonded work at 15 mm minimum, TS-20 down to 20 mm, HTC high strength for heavy duty loading, and Summit.

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11. supplier figure RN-3MYOR4

    Mannok (formerly Quinn Building Products)

    Expanded polystyrene board, lengths 1200, 1800 and 2400 mm, widths 600 and 1200 mm, thicknesses 25 mm to 100 mm as standard. Thermal conductivity 0.036 W/mK. Compressive strength at 10% deformation 100 kPa; bending strength 150 kPa. Water vapour diffusion factor 30 to 70; water vapour permeability 0.010 to 0.024 mg/PaNM. Long term water absorption WL(T)05 by total immersion, less than 1% by partial immersion. Approximate density 20 kg/m3. Fire Classification E.

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12. supplier figure RN-GJPO5X

    Mannok (formerly Quinn Building Products)

    Expanded polystyrene board, lengths 1200, 1800 and 2400 mm, widths 600 and 1200 mm, thicknesses 25 mm to 100 mm as standard. Thermal conductivity 0.035 W/mK. Compressive strength at 10% deformation 150 kPa; bending strength 200 kPa. Water vapour diffusion factor 40 to 100; permeability 0.007 to 0.018 mg/PaNM. Long term water absorption WL(T)05 total immersion, less than 1% partial immersion. Approximate density 25 kg/m3. Fire Classification E. Certified by IAB and BBA for use in underfloor heating systems.

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13. supplier figure RN-0GFGNQ

    Mannok (formerly Quinn Building Products)

    Expanded polystyrene board, lengths 1200, 1800 and 2400 mm, widths 600 and 1200 mm, thicknesses 25 mm to 100 mm as standard. Thermal conductivity 0.034 W/mK. Compressive strength at 10% deformation 200 kPa; bending strength 250 kPa. Water vapour diffusion factor 40 to 100; permeability 0.007 to 0.018 mg/PaNM. Approximate density 30 kg/m3. Fire Classification E.

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14. supplier figure RN-UTVV6P

    Mannok (formerly Quinn Building Products)

    Expanded polystyrene board, lengths 1200, 1800 and 2400 mm, widths 600 and 1200 mm, thicknesses 25 mm to 100 mm as standard. Thermal conductivity 0.038 W/mK. Compressive strength at 10% deformation 70 kPa; bending strength 115 kPa. Dimensional stability DS(N)5 length, DS(N)2 width. Water vapour diffusion factor 20 to 40; water vapour permeability 0.018 to 0.036 mg/PaNM. Long term water absorption WL(T)05 by total immersion (less than 5%), less than 1% by partial immersion. Approximate density 15 kg/m3. Fire Classification E.

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15. supplier figure RN-A7HM8U

    Mannok (formerly Quinn Building Products)

    Foil faced rigid PIR floor board, 2400 x 1200 mm, thicknesses 20 mm to 200 mm. Thermal conductivity (lambda) 0.022 W/mK. Core water vapour resistivity approximately 300 MNs/gm. Compressive strength greater than 140 kPa. Certified under BBA certificate 07/4444 and IAB certificate 05/0223. The page does not state a Euroclass reaction to fire classification.

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16. supplier figure RN-NUVY5P

    Metsa Wood (Metsa Group)

    Declared characteristic values for Kerto LVL Q-panel, cross-veneered LVL-C, in strength classes LVL 32 C and LVL 36 C respectively. Bending edgewise at 300 mm depth fm,0,edge,k 28.0 and 32.0 N/mm2; flatwise parallel 32.0 and 36.0; flatwise perpendicular 7.0 and 8.0. Compression parallel fc,0,k 19.0 and 26.0; perpendicular edgewise 9.0 for both; perpendicular flatwise 2.2 for both. Tension parallel ft,0,k 19.0 and 26.0 at 3,000 mm length; perpendicular edgewise 6.0 for both, which is far above the 0.8 of the all-parallel S-beam and is the point of the cross veneers. Shear edgewise fv,0,edge,k 4.5 for both, flatwise parallel 1.3, flatwise perpendicular 0.6. Modulus of elasticity parallel E0,mean 10,000 and 10,500 N/mm2, E0,k 8,300 and 8,800. Shear modulus edgewise G0,edge,mean 600 and G0,edge,k 400; flatwise parallel 80 and 120 mean. Mean density 510 kg/m3.

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17. supplier figure RN-FITN44

    Metsa Wood (Metsa Group)

    Kerto LVL Q-panel has roughly 20% of its veneers oriented crosswise. Thicknesses 27-75 mm meet strength class LVL 36 C; thicknesses 21-24 mm meet LVL 32 C. Common sizes: thicknesses 27, 39, 45, 51, 57, 63 and 69 mm in panel widths 900, 1200/1250, 1800/1820 and 2400/2500 mm. Panels up to 2,500 mm wide and 20 m long. Used for roof, floor and wall panels, high slender beams and prefabricated elements.

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18. supplier figure RN-9YAKHA

    Metsa Wood (Metsa Group)

    Declared characteristic values for Kerto LVL S-beam, strength class LVL 48 P, thickness 21-90 mm, harmonised standard EN 14374:2004, AVCP System 1, notified body Eurofins Expert Services Oy 0809. Bending strength edgewise at 300 mm depth fm,0,edge,k 44.0 N/mm2 with size effect parameter s = 0.12; flatwise parallel fm,0,flat,k 50.0. Compression parallel fc,0,k 35.0 N/mm2 (divide by 1.2 in service class 2), perpendicular edgewise 6.0, perpendicular flatwise 2.2. Tension parallel ft,0,k 35.0 N/mm2 at 3,000 mm length, perpendicular edgewise 0.8. Shear edgewise fv,0,edge,k 4.2 N/mm2, flatwise parallel 2.3. Modulus of elasticity parallel E0,mean 13,800 N/mm2 and E0,k 11,600. Shear modulus edgewise G0,edge,mean 600 and G0,edge,k 400. Density mean 510 kg/m3, characteristic 480 kg/m3. Reaction to fire D-s2,d0 at a minimum 21 mm thickness.

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19. supplier figure RN-61BFOD

    Metsa Wood (Metsa Group)

    Made of 3 mm strength graded softwood veneers all with the same grain direction, bonded with weather and boil resistant phenol formaldehyde adhesive. Overall dimensions: thickness minimum 27 mm to maximum 75 mm, width or height 40 mm to 2,500 mm, length 2,000 mm to 25,000 mm (20,000 mm above 1,830 mm wide). Thickness tolerance plus or minus 1.0 mm at 27 mm or less, 2.0 mm from 27 to 57 mm, 3.0 mm above 57 mm, at 10 plus or minus 2% moisture content. Optical sanding removes about 2 mm of nominal thickness and calibrated sanding about 3 mm, and design must use the sanded thickness. CE and UKCA marked, design properties to EN 14374, structural design to EN 1995 Eurocode 5. Formaldehyde emission below 0.062 mg/m3, well under the Class E1 limit of 0.100 ppm. Heavy duty multiple-glued beams from 78 mm to 144 mm are available but not CE marked. 1 m3 stores on average carbon equivalent to 783 kg CO2.

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20. supplier figure RN-NALEQE

    Metsa Wood (Metsa Group)

    Kerto LVL S-beam is all-parallel-veneer LVL. Thicknesses 27-75 mm meet strength class LVL 48 P. Standard common sizes: thicknesses 45, 51, 57 and 63 mm in heights 200, 220, 240, 260, 300, 360, 400, 450 and 600 mm. Uses given are beams and headers, studs and columns, and components for roof, floor and wall elements. Downloads on the page include the product datasheet, the Declaration of Performance, the UK Declaration of Conformity and EPD-IES-0026805.

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21. supplier figure RN-UF16T9

    MiTek Industries

    Posi-Joist metal web joists. Web types and their clearance between flanges and standard overall depth: PS8 108 mm clearance and 202 mm depth; PS9 131 mm and 225 mm; PS10 159 mm and 253 mm; PS12 210 mm and 304 mm; PS14 279 mm and 373 mm; PS16 327 mm and 421 mm. The open web is sized so MVHR ducting and services pass through the floor zone without notching. Acoustic floor build-ups in the handbook include 202 mm Posi-Joist with 22 mm chipboard and 253 mm Posi-Joist with 18 mm plywood or 22 mm chipboard; ceiling details call for a minimum 35 x 97 C16 noggin nailed to the underside and drywall screws at 230 mm centres for joists 253 mm and deeper. Spans are confirmed through MiTek's interactive span tables rather than a printed table.

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22. supplier figure RN-M21MDR

    Newton Waterproofing Systems

    CDM 503 HDPE cavity drain membrane, white. Unit weight 0.5 kg/m2, sheet thickness 0.6 mm, stud height 3 mm. Water tightness at 60 kPa for 24 hours, pass. Used on walls, floors, vaults and tunnels as part of the Newton CDM System for below ground waterproofing under BS 8102:2022, which Newton note requires a maintainable system and a waterproofing specialist in the design team.

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23. supplier figure RN-ABMIDM

    Newton Waterproofing Systems

    CDM 508 HDPE cavity drain membrane, white. Overall height 8.0 mm, membrane thickness 0.45 mm, stud height 7.0 mm. Two densities, 500 g/m2 and 700 g/m2, in 2.0 m x 20 m (40 m2) and 2.4 m x 20 m (48 m2) rolls, codes M1-5-40, M1-5-48, M1-7-40, M1-7-48; only the 700 g/m2 variants are used on floors. Packaged weight 20, 24, 28 or 33.6 kg. Working temperature -50 to +80 C, service temperature -40 to +80 C, softening temperature 126 C. Installed performance: water tightness at 60 kPa for 24 h pass, tensile strength MD 416 N and CD 488 N, resistance to static loading over 20 kg, compressive strength 180 kN, fire resistance E, application Type V. Guaranteed against deterioration for 30 years, BBA Agrement Certificate 22/6357. Capable of delivering a Grade 3 internal environment under BS 8102:2022 where ventilation is also provided. Substrates: concrete, brick, concrete block, ICF with longer fixing plugs; floors over a concrete raft or slab or Fibran XPS 500-C.

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24. supplier figure RN-KCZ2U4

    Nu-Heat

    Manufacturer data on retrofit underfloor heating. Nu-Heat states its LoPro low profile overlay range has a height build-up as low as 15mm, laid over an existing solid or timber floor with tiles or laminate applied directly on top, which is the figure that decides whether doors and skirtings have to be altered. The manufacturer claims underfloor heating efficiency is around 25 per cent better than radiators, rising to up to 40 per cent more efficient when paired with a heat pump, because a larger emitting surface allows a far lower flow temperature. Nu-Heat cites over 80,000 installations across more than 34 years.

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25. supplier figure RN-ZEFNHI

    Quick-Step (Unilin)

    Manufacturer technical data sheet for a 4mm rigid core click vinyl floor. Two plank formats are supplied: 189 x 1251 mm giving 2.837 m2 per pack at 18.606 kg, and 303 x 610 mm giving 2.772 m2 per pack at 18.19 kg. Density to ISO 23997 is 1610 plus or minus 50 kg/m3 and total thickness to ISO 24346 is 4 mm. Usage class is declared to EN ISO 10874. The pack weights of roughly 18 kg for under 3 m2 are the practical figure: a 20 m2 room is seven packs and about 130 kg to carry in.

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26. supplier figure RN-5TZA77

    Quick-Step (Unilin)

    Manufacturer technical data sheet for a 12.0mm water resistant laminate. Planks are 190mm wide by 1380mm long with 1.311 m2 per pack, which is the figure needed to convert a room area into packs. Usage class to EN 13329 is 21-22-23/31-32-33, so it is rated for heavy domestic and heavy commercial use. Wear class is AC5, the top rating. Water resistance warranty is 15 years domestic and 10 years commercial, alongside a 10 year commercial use warranty subject to conditions. Impact resistance is declared to EN 17368. The distinction between a 15 year water resistance warranty and the lifetime product warranty on the same floor is the detail a reader should be shown.

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27. supplier figure RN-VXQJJP

    Quick-Step (Unilin)

    The manufacturer's own warranty conditions, which set out what a lifetime laminate guarantee actually means. Residential cover by collection runs 15 years, 20 years for Creo, 25 years for Largo and Lifetime on others, with separate commercial periods of 5 or 10 years and a separate water resistance and click system warranty per collection. Lifetime is defined as the lifetime of the first owner and is not transferable, and the warranty applies only to the first owner and first installation. The lifetime joint warranty only applies to permanently open joints wider than 0.2mm. Water resistance cover in wet areas depends on installing with a compressible PE foam expansion strip (NEFOAMSTRIP20) and an elastic waterproof sealant, with exposed sealant and foam strip to be checked every 3 years, and excludes flood damage. Sand and dust must be kept off the floor with a suitable entrance mat, and only recommended Quick-Step accessories may be used. Metal Quick-Step profiles are required for commercial use, and product class must match usage class for the standard commercial warranty to apply.

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28. supplier figure RN-EXILIH

    Recticel Insulation

    General purpose PIR board, 2400 x 1200 mm, straight edges. Lambda 0.022 W/mK. Compressive strength greater than or equal to 120 kPa. Fire behaviour: Euroclass F. Published thermal resistance by thickness (m2K/W): 25 mm 1.10, 30 mm 1.35, 40 mm 1.80, 50 mm 2.25, 60 mm 2.70, 70 mm 3.15, 75 mm 3.40, 80 mm 3.60, 90 mm 4.05, 100 mm 4.50, 110 mm 5.00, 120 mm 5.45, 130 mm 5.90, 140 mm 6.35, 150 mm 6.80, 160 mm 7.25. BBA certificate for Eurothane GP underfloor is listed with the downloads.

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29. supplier figure RN-JDLNNW

    ROCKWOOL UK

    Non combustible dual purpose acoustic and thermal stone wool slab with a flexible edge on one side, made to EN 13162:2012+A1:2015. Declared thermal conductivity 0.038 W/mK at 50 to 120 mm and 0.035 W/mK at 140 mm and above. Reaction to fire Euroclass A1 in accordance with BS EN 13501-1: 2018. Density exceeds 10 kg/m3 in accordance with Approved Document E. Available thicknesses 50, 60, 70, 90, 100, 120, 140 and 180 mm. Long and short term water absorption declared NPD.

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30. supplier figure RN-TJA6MC

    ROCKWOOL UK

    Stone wool slab to EN 13162:2012+A1:2015. Declared thermal conductivity 0.035 W/mK in the properties table, with the product summary quoting 0.034 W/mK. Density exceeds 10 kg/m3 in accordance with Approved Document E. Reaction to fire Euroclass A1 in accordance with BS EN 13501-1: 2018.

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31. supplier figure RN-I72L8T

    ROCKWOOL UK

    Non combustible stone wool thermal insulation for concrete soffits, capable of providing up to 4 hours of fire protection, available with optional aluminium foil and tissue facings. Declared thermal conductivity 0.034 W/mK, product standard EN 13162:2012+A1:2015. Soffit Slab has been classified A1 in accordance with BS EN 13501-1: 2018, and is classified for fire resistance in accordance with BS EN 13501-2: 2023. The Hi Impact Soffit Slab variant with a bonded 6 mm fibre cement board is classified A2-s1, d0 in accordance with BS EN 13501-1:2018.

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32. supplier figure RN-63ALGP

    Ronacrete

    Ronafix is a single part styrene butadiene liquid admixture for cement screeds. Minimum thicknesses: bonded 10 mm, unbonded 35 mm, floating 35 mm. Mix Design A, wearing screed, per 0.1 m3 yield: 50 kg Portland cement CEM II 42.5, 125 kg 0/4 mm screeding sand, 9 litres Ronafix admixture and up to 9 litres clean water. Mix Design A1, levelling screed, per 0.1 m3: 50 kg cement, 150 kg sand, 4.5 litres Ronafix and up to 14 litres water. Strengths: compressive greater than 30.0 N/mm2 at 1 day, greater than 45.0 N/mm2 at 7 days and greater than 55.0 N/mm2 at 28 days; flexural at least 12.0 N/mm2 at 7 days and 15.0 N/mm2 at 28 days; tensile at least 4.5 N/mm2 at 7 days and 6.0 N/mm2 at 28 days. Flooring can be laid over a 50 mm screed after only 10 days. Compatible with underfloor heating.

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33. supplier figure RN-X0WC7B

    Ronseal

    Manufacturer data for a hard wearing floor paint. Coverage is up to 12 m2 per litre. It can be recoated and walked over in 4 hours and is fully hard in 72 hours, so a painted floor should not take furniture back for three days. The room must be above 10C with doors and windows open. On concrete the manufacturer's instruction is to seal first with a stabilising solution to prevent cracking or blistering, or alternatively to apply a thin first coat diluted with 10 per cent water and let it dry before painting undiluted. On wood the surface should be sanded with a floor sander and 120 grit paper.

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34. supplier figure RN-UPUWRM

    Ronseal

    Manufacturer application data for a water based floor varnish. Coverage is up to 18 m2 per litre and it dries in 30 minutes, so a 20 m2 room takes about a litre per coat. The room must be warmer than 10C. Ronseal's stated method is to sand along the length of the floorboards with 120 grit paper (a floor sander for bare or flaking floors), then before the third coat to sand lightly along the boards with 240 grit by hand. Application is with a 4 inch brush working along two floorboards at a time, starting in the corner furthest from the door. The 18 m2 per litre and 30 minute figures are what make a three coat floor a one day job.

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35. supplier figure RN-LLD56A

    Safeguard Europe

    Single pack water-based barrier coating for above ground use, applied in two coats by brush, roller or spray, touch dry in about one hour. Dark blue or white thick liquid, density 1.0 g/cm3, active ingredient styrene butadiene based. Supplied in 1 litre tins and 5 litre buckets. Coverage as a vapour barrier 4.5 m2 per 5 litres. Performance: water resistance 20 metres head, water vapour permeability less than 4 g/m2 per day, methane resistance 10 times, radon barrier, tensile strength 4 N/mm2, elongation at break 350%. Suitable for solid floors, embedded timbers and floor-to-wall junctions, and a barrier to radon, carbon dioxide and methane. Not suitable as a bond coat on walls, where Drybase Flex Membrane or Bondaid Plus SBR is used instead.

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36. supplier figure RN-YS5AOG

    Safeguard Europe

    Patented 12 mm diameter grooved fibre rods carrying a water repellent, inserted into pre-drilled 12 mm holes along a mortar line. Supplied in packs of 10 rods, 180 mm long, 12 mm diameter. Coverage per 10 m of wall: 42 rods for a 4.5 inch (115 mm) wall, 84 rods for a 9 inch wall. For a 115 mm wall the drill hole depth is 95 mm and the rod length 90 mm. Holes are set 120 mm apart approximately 150 mm above ground when treating from outside. Drilling pressure is reduced 40 mm short of full depth to avoid blowing out the far face. Effective in both new alkaline and old neutral mortar, and can be applied in cold conditions. Shelf life 12 months unopened. Safeguard direct thicker or rubble-filled walls to Dryzone Cream instead. BBA Certificate 97/3363. Last modified 01/24.

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37. supplier figure RN-LXKVRO

    Safeguard Europe

    Silicone damp-proofing cream for remedial rising damp, injected into holes drilled along a mortar bed. Thick white cream, density 0.9 g/cm3, water based, active ingredients silane and siloxane. Packed as a 5 litre bucket, 600 ml foil sausage and 310 ml mastic cartridge. Shelf life 18 months, 12 months in the 5 litre bucket. Application: SDS drill on rotary hammer with a 12 mm bit; from outside, holes 120 mm apart in a mortar course roughly 150 mm above ground; from inside, the lowest accessible mortar course. Existing damaged and salt contaminated plaster is removed to 30 cm above the proposed DPC line or 30 cm above the highest point of rising damp, per BS 6576. The cream typically cures to a damp proof course over about one month. BBA Certificate 97/3363. Datasheet last modified 02/24.

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38. supplier figure RN-B93N4C

    Schluter Systems

    Manufacturer data for the DITRA family of polyethylene uncoupling membranes used under ceramic and stone tiling. DITRA is 3.5 mm thick (1/8 inch), which keeps the tile assembly thin and reduces the step down to adjoining floor finishes, while DITRA-XL is 7 mm (5/16 inch). The membrane is a grid of square cavities each cut back in a dovetail, with an anchoring fleece laminated to the underside that is embedded in thin-set mortar for a mechanical bond to the substrate. Mortar coverage requirements are more than 80 per cent for dry applications and more than 95 per cent for exterior or shower installations, which is the workmanship figure that decides whether a tiled shower floor will hold up. Besides uncoupling, the membrane provides waterproofing and vapour management.

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39. supplier figure RN-WZFFPR

    Sika Limited

    Sika-1 pre-bagged cementitious tanking, a Type A barrier waterproofing system to BS 8102, usable internally and externally. Wall build-up in three coats: 1st coat Sika Spritz Mortar at 6 mm, 2nd coat Sika Render Mortar at 6 mm, 3rd coat Sika Finishing Mortar at 6 mm, total system thickness minimum 18 mm, with extra render coats if needed. Floor build-up: 1st coat Spritz Mortar as a bonding slurry, 2nd coat Spritz Mortar at 10 mm, 3rd coat Sika Screed Mortar at 20 mm, total minimum 30 mm. Supplied in 25 kg bags with a coloured band. Mixing and coverage: Spritz Mortar 25 kg with 5.5 litres of clean water covering about 2 m2 at 6 mm; Render Mortar 25 kg with 3.1 litres covering about 2 m2 at 6 mm; Finishing Mortar 25 kg with 3.1 litres covering about 2 m2 at 6 mm; Screed Mortar 25 kg with 2.5 litres covering 0.6 m2 at 20 mm. Wall to floor joints must be sealed with Sikadur components. The datasheet warns never to score or scratch any of the render coats. Sikagard and Sikafloor coatings can be applied directly over the system. Installation by Sika Registered Contractors.

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40. supplier figure RN-TL3093

    Simpson Strong-Tie

    Heavy duty face fix hangers in 2 mm pre-galvanised mild steel, nailed with square twist nails and with bolt holes for 12 mm fasteners into the face. Key installation rule stated on the sheet: the hanger depth must be at least 60% of the carried member depth to prevent rotation unless extra lateral restraint is added at the top of the carried member. Characteristic capacities for C24 timber, R1,k downward with N3.75x30 nails: SAE200 series 7.6 kN into a C16 header and 8.1 kN into a C24 header, using 8 header and 5 joist fasteners, R2,k 4.2 kN; SAE250 12.7 and 13.5 kN with 12 and 7 fasteners, R2,k 5.9 kN; SAE380 18.2 and 19.4 kN with 20 and 10 fasteners, R2,k 8.5 kN; SAE500 33.3 and 35.6 kN with 32 and 16 fasteners, R2,k 12.2 kN; SAE600 42.2 and 45.1 kN with 36 and 20 fasteners, R2,k 15.9 kN. Product dimensions given by joist width from 36-38 mm up to SAEL at 140 and 150 mm, with hanger weights from 0.26 kg to 0.786 kg. Minimum supporting timber thickness with SSH10x40 screws is 47 mm.

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