References

Brick, Block & Mortar

274 sources in the library on brick, block & mortar. 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 7 of 7.

1. supplier figure RN-5TX0ED

   Siniat

   Manufacturer datasheet for a dense plasterboard specified where sound insulation is critical. It is supplied in 12.5mm thickness only, weighing 10.2 kg/m2 or 29.4 kg for a 2400 x 1200mm sheet, against 8.0 kg/m2 for standard board of the same thickness. Thermal conductivity is 0.25 W/mK to BS EN 12524:2000 giving a thermal resistance of 0.050 m2K/W. Reaction to fire is Euroclass A2-s1, d0. The core and papers are made from recycled waste paper with bound edges. Siniat states it is used in internal partition types A and B in the context of Approved Document E. Fixings must suit the substrate, with different screws for metal up to 0.7mm and up to 2.5mm.

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2. supplier figure RN-1XTBA1

   Siniat

   Manufacturer datasheet for moisture resistant plasterboard, the board for washrooms, toilets, kitchens and bathrooms where standard board is not suitable. A 2400 x 1200mm sheet weighs 24.3 kg at 12.5mm and 34.3 kg at 15.0mm, or 8.45 kg/m2 and 11.9 kg/m2, noticeably heavier than the 8.0 kg/m2 of standard board at the same thickness. Density is 676 kg/m3 at 12.5mm and 793 kg/m3 at 15mm. Thermal conductivity is 0.25 W/mK to BS EN 12524:2000, giving thermal resistance of 0.050 m2K/W at 12.5mm and 0.060 m2K/W at 15mm. Reaction to fire is Euroclass A2-s1, d0. The core is aerated calcium sulphate di-hydrate with fillers and moisture resistant additives, and the board identification is printed on the back face and edges. Boards require treating with a PVA bonding agent before finishing. Moisture resistant board is not a waterproof board and still needs a tanking system in a shower area.

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3. supplier figure RN-860P5G

   Siniat

   Manufacturer datasheet for standard drylining plasterboard. A 2400 x 1200mm sheet weighs 17.3 kg at 9.5mm, 23.0 kg at 12.5mm and 28.8 kg at 15.0mm, equivalent to 6.0, 8.0 and 10.0 kg/m2, which is why a 12.5mm 8 by 4 sheet is a two person carry up a staircase. Thermal conductivity is 0.19 W/mK, giving a thermal resistance of 0.050 m2K/W at 9.5mm, 0.066 at 12.5mm and 0.079 at 15.0mm, so plasterboard contributes almost nothing to a wall U-value on its own. Reaction to fire is Euroclass A2-s1, d0. The core is aerated calcium sulphate di-hydrate between paper liners with a tapered edge for jointing. Transversal breaking load is at least 160N. Fixings are self drilling screws for metal up to 0.7mm and heavier screws for metal up to 2.5mm, or GTEC High Thread Screws into timber.

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4. supplier figure RN-0IU1ZN

   Siniat

   Manufacturer datasheet for insulated plasterboard, EPS bonded to 9.5mm plasterboard with PVA adhesive. Thermal conductivity is 0.037 W/mK for the EPS and 0.19 W/mK for the plasterboard, giving total thermal resistance of 0.37 m2K/W at 22mm overall, 0.62 at 30mm, 0.89 at 40mm and 1.16 m2K/W at 50mm. That is the crucial number for internal wall insulation: even a 50mm laminate adds only 1.16 m2K/W, so a solid brick wall lined with it will still be far from a modern U-value. Sheet weight is 18.1 kg at 22mm, 18.4 kg at 30mm, 18.7 kg at 40mm and 19.0 kg at 50mm for a 2400 x 1200mm board, so the extra insulation adds almost no weight. Vapour resistance is 2.31 MNs/g at 22mm and 3.47 MNs/g at 30mm. The laminate complies with BS EN 13950:2014 and the ozone depleting potential is 0. The core and papers are made from recycled waste paper bonded with starch, edge glued with PVA.

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5. supplier figure RN-8406LA

   SOPREMA UK (Celotex)

   Partial fill cavity wall PIR board with aluminium foil facings, boards 1200 x 450 mm. Declared thermal conductivity (lambda D) 0.022 W/mK. Thickness range 40 mm to 100 mm. Compressive strength 120 kPa. BBA Certificate 25/7312 covers partial fill cavity walls. Fire: SOPRATHERM CW4000 achieves a reaction to fire classification of Euroclass F in accordance with BS EN 13501-1.

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6. 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.

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7. supplier figure RN-788O31

   SOPREMA UK (Celotex)

   Thin PIR insulation board with aluminium foil facings, boards 2400 x 1200 mm. Declared thermal conductivity (lambda D) 0.022 W/mK. Thickness range 20 mm to 40 mm. Compressive strength 120 kPa. BBA Certificate 25/7318 covers pitched roof, dry lining and floor insulation. Fire: SOPRATHERM TB4000 achieves a reaction to fire classification of Euroclass F in accordance with BS EN 13501-1.

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8. supplier figure RN-131KRM

   STEICO

   Wood fibre internal insulation board for mineral surfaces to EN 13171, designation WF - EN 13171 - T4 - CS(10\Y)50 - TR2,5 - AFr100. Declared thermal conductivity 0.038 W/(mK). Density 160 kg/m3. Water vapour diffusion resistance factor mu 5; sd 0.2 m at 40 mm, 0.3 m at 60 mm, 0.4 m at 80 mm, 0.50 m at 100 mm. Declared thermal resistance 1.05 (40 mm), 1.55 (60 mm), 2.10 (80 mm), 2.63 (100 mm) m2K/W. Compressive strength at 10% compression 0.05 N/mm2, that is greater than or equal to 50 kPa; tensile strength perpendicular to face greater than or equal to 2.5 kPa. Airflow resistance greater than or equal to 100 (kPa s)/m2. Specific heat capacity 2100 J/(kgK); biogenic carbon approximately 285 kg CO2eq/m3. Fire class (RTF) according to EN 13501-1: E.

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9. supplier figure RN-VMF4DE

   STEICO

   Wood fibre external insulation board designed to take direct render, to EN 13171 and EN 14964, designation WF - EN 13171 - T5 - DS(70,90)3 - CS(10\Y)50 - TR10 - WS1,0 - MU3. Declared thermal conductivity 0.037 W/(mK). Density 110 kg/m3. Water vapour diffusion resistance factor mu 3; sd 0.12 m at 40 mm rising to 0.90 m at 300 mm. Declared thermal resistance for Type L dry 037 (m2K/W): 2.15 (80 mm), 2.70 (100), 3.20 (120), 3.75 (140), 4.30 (160), 4.85 (180), 5.40 (200), 5.90 (220), 6.45 (240), 7.00 (260), 7.65 (280), 8.10 (300); Type M dry 1.50 (60) to 5.00 (200); Type H dry 0.90 (40) and 1.35 (60). Compression strength at least 50 kPa; tensile strength perpendicular to face at least 10 kPa. Outdoor exposure 4 weeks; specific heat capacity 2100 J/(kgK); biogenic carbon approximately 183 kg CO2eq/m3. Fire class (RTF) according to EN 13501-1: E.

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10. supplier figure RN-3O5V57

    STEICO

    Rigid wood fibre underlay and sheathing board to EN 13171. Board designations: 40 mm WF - EN 13171 - T5 - WS1,0 - CS(10\Y)200 - DS(70,90)3 - TR30; 60 to 100 mm CS(10\Y)100 - DS(70,-)2 - TR10; 120 to 240 mm CS(10\Y)50 - TR10. Declared thermal conductivity 0.043 W/(mK) at 40 mm and 0.040 W/(mK) at 60 to 80 mm. Density 180 kg/m3 at 40 mm and 140 kg/m3 at 60 to 80 mm. Declared thermal resistance (m2K/W): 0.90 (40 mm), 1.50 (60), 2.00 (80), 2.50 (100), 3.20 (120), 3.75 (140), 4.30 (160), 4.85 (180), 5.40 (200), 5.95 (220), 6.48 (240). sd 0.28 m at 40 mm to 1.68 m at 240 mm. Compressive strength at 10% compression 0.2 N/mm2 (200 kPa) at 40 mm and 0.1 N/mm2 (100 kPa) at 60 to 80 mm. Resistance to water penetration W1, outdoor exposure 8 weeks, short term water absorption 1.0 kg/m2 or less, processing temperature 5 C or above. Suitable as a roof soffit panel from 5 degrees pitch, tile roofing from above 10 degrees. Fire class (RTF) according to EN 13501-1: E.

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11. supplier figure RN-009TEM

    STEICO

    Rigid wood fibre sarking and sheathing board to EN 13171 and EN 14964, designation WF - EN 13171 - AFr100 - T5 - WS1,0 - MU5 - CS(10\Y)200 - DS(70,-)2 - TR30, EN-14964-IL. Declared thermal conductivity 0.048 W/(mK). Density 270 kg/m3. Water vapour diffusion resistance factor mu 5; sd 0.11 m at 22 mm, 0.18 m at 35 mm, 0.30 m at 60 mm. Declared thermal resistance 0.45 (22 mm), 0.70 (35 mm), 1.25 (60 mm) m2K/W. Compressive strength at 10% compression 0.20 N/mm2, that is greater than or equal to 200 kPa; tensile strength perpendicular to face greater than or equal to 30 kPa. Short term water absorption less than or equal to 1.0 kg/m2, outdoor exposure 4 weeks, suitable from a roof pitch of 14 degrees or more. Specific heat capacity 2100 J/(kgK). Fire class (RTF) according to EN 13501-1: E.

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12. supplier figure RN-OOMKQ5

    STEICO

    Flexible wood fibre batt to EN 13171, board designation WF - EN 13171 - T3 - TR1 - AFr5 - MU 2. Declared thermal conductivity 0.036 W/(mK). Density 50 kg/m3. Water vapour diffusion resistance factor mu 2. Specific heat capacity 2100 J/(kgK). Declared airflow resistance greater than or equal to 5 (kPa s)/m2. Declared thermal resistance (m2K/W) by thickness in mm: 0.80 (30), 1.10 (40), 1.35 (50), 1.65 (60), 2.20 (80), 2.75 (100), 3.30 (120), 3.85 (140), 4.40 (160), 5.00 (180), 5.55 (200), 6.10 (220), 6.65 (240). sd values 0.06 m at 30 mm rising to 0.48 m at 240 mm. Ingredients wood fibres, polyolefin fibres, ammonium sulfate; biogenic carbon approximately 82 kg CO2eq/m3. Fire class (RTF) according to EN 13501-1: E.

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13. supplier figure RN-2GTPEI

    Superglass (Etex)

    Non combustible glass mineral wool flexible slab supplied at 600 mm widths for friction fitting between common stud and joist spacings. Declared thermal conductivity (lambda) 0.032 W/mK. Manufactured at a nominal density of 32 kg/m3. Fire classification Euroclass A1 when tested to EN 13501-1:2018 Reaction to Fire. Applications include light gauge steel framing between studs, party and separating walls and internal partition walls.

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14. supplier figure RN-TQOT2C

    Superglass (Etex)

    BBA certified non combustible glass mineral wool cavity wall batt with a water repellent additive, supplied 455 mm wide to friction fit between standard vertical wall tie spacings. Declared thermal conductivity (lambda) 0.036 W/mK. Fire classification: Euroclass A1 when tested to EN 13501-1:2018 Reaction to Fire. CCPI Assessment Mark certificate 005800103/0728. Approved for full or partial fill in new external masonry cavity walls up to 25 metres in height for full fill and without height restriction for partial fill, with additional requirements above 12 metres for full fill and above 25 metres for partial fill. BBA certified for use in all UK exposure zones subject to the certificate conditions.

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15. 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.

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16. 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.

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17. 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.

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18. supplier figure RN-8JEJ8M

    Thor Helical

    AISI 304 austenitic stainless steel crack stitching bars, 316 on special request. Lengths 1.0 m, 1.5 m and 2.0 m; diameters 5, 6, 7, 8 and 9 mm. Bars extend 500 mm either side of the crack. Typical performance loads in a 35-40 mm slot at 400 mm embedment, tested to EN 846-4: single 6 mm bar 8.39 kN, single 7 mm 9.75 kN, single 8 mm 11.06 kN, single 9 mm 11.50 kN; double 6 mm bars 16.00 kN, double 7 mm 17.65 kN, double 8 mm 17.65 kN. BS EN 845-1:2013 requires equivalence to the prescriptive 30 x 5 mm lateral restraint strap with a declared tensile load capacity of at least 8 kN, which every listed configuration exceeds. Bonded with WHO60 polymer-modified structural repair grout. Supplied in lots of 500, packed in resale bundles of 10 and 25. UKCA and CE marked.

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19. supplier figure RN-UA3T5Q

    Thor Helical

    AISI 304 stainless helical bars (316 on request) for retrofit bed joint reinforcement, lengths 7.0, 8.0 and 10.0 m up to a stated maximum of 10 m, diameters 5, 6, 7, 8 and 9 mm. Cold rolled from stainless wire and twisted through a die, giving a tensile strength of 1050-1200 N/mm2, which Thor state is twice that of rebar, four times that of epoxy glass fibre rods and seven times that of wound helix plate, citing BRE GBG62. Retrofit brick beam capacities from BRE testing with conservative safety factors, quoted at 300, 450 and 600 mm beam depths: 1.2 m span 21.8 kN, 1.6 m 16.4 kN, 2.0 m 13.1 kN, 2.4 m 10.9 kN, 2.8 m 9.4 kN, and 3.2 m 8.2 kN at 450 and 600 mm depth (not available at 300 mm). Beams are formed by reinforcing two separate mortar beds, each with a pair of bars in WHO-60 grout, the two chords acting as flanges with the masonry between as the web. Supplied in lots of 100, coiled and tied in fives.

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20. supplier figure RN-PLXFFS

    Unilin Insulation (formerly Xtratherm)

    Full fill cavity board with a composite foil inner facing and a HIPs outer facer, 1200 x 450 mm, thicknesses 100, 110, 125 and 150 mm. Thermal conductivity 0.021 W/mK. Compressive strength CS(10Y) 100 kPa. Reaction to fire: Euroclass F. Typical wall U-values to EN ISO 6946:2017 for plasterboard on dabs, 100 mm inner leaf blockwork, CT/PIR, unventilated cavity and brick: with 1.13 W/mK blockwork 0.19 (100 mm), 0.18 (110), 0.16 (125), 0.13 (150); with 0.46 blockwork 0.19, 0.17, 0.15, 0.13; with 0.15 blockwork 0.18, 0.16, 0.15, 0.12 W/m2K.

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21. supplier figure RN-9OK5VK

    Unilin Insulation (formerly Xtratherm)

    Phenolic partial fill cavity board with composite foil facings both sides, 1200 x 450 mm, thicknesses 75, 80 and 100 mm. Thermal conductivity 0.019 W/mK. Compressive strength CS(10Y) 100 kPa. Reaction to fire: Euroclass D-s1, d0. Typical wall U-values calculated to EN ISO 6946:2017 for plasterboard on dabs, 100 mm inner leaf blockwork, SR019/CW, low emissivity unventilated cavity and brick.

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22. supplier figure RN-F98532

    Unilin Insulation (formerly Xtratherm)

    Phenolic partial fill cavity board with composite foil facings both sides, 1200 x 450 mm, thicknesses 50 and 60 mm. Thermal conductivity 0.021 W/mK. Compressive strength CS(10Y) 100 kPa. Reaction to fire: Euroclass D-s1, d0. An IGBC certified EPD is available.

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23. supplier figure RN-4J203Z

    Unilin Insulation (formerly Xtratherm)

    Phenolic thermal laminate with composite glass tissue facings, 2400 x 1200 mm, overall thicknesses 37.5, 50.5, 62.5, 72.5 and 82.5 mm. Thermal conductivity 0.021 to 0.023 W/mK (phenolic only). Compressive strength not applicable. Reaction to fire: Euroclass B-s1, d0. Unilin states the wider Safe-R 019 range reaches 0.019 W/mK.

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24. supplier figure RN-HLFQBO

    Unilin Insulation (formerly Xtratherm)

    Enhanced PIR full fill cavity board with textured foil facings both sides, 1200 x 450 mm, thicknesses 90, 100, 115 and 140 mm. Thermal conductivity 0.021 W/mK. Compressive strength CS(10Y) 120 kPa. Reaction to fire: Euroclass E. An IGBC certified EPD is available.

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25. supplier figure RN-C2BW5M

    Unilin Insulation (formerly Xtratherm)

    PIR partial fill cavity board with composite foil facings both sides, tongue and groove, 1200 x 450 mm. Thicknesses 60, 70, 80, 100, 110, 120 and 125 mm. Thermal conductivity 0.022 W/mK. Compressive strength CS(10Y) 120 kPa. Reaction to fire: Euroclass F. Covered by BBA 23/6997 (2026).

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26. supplier figure RN-0FPBZN

    Unilin Insulation (formerly Xtratherm)

    PIR wall board for timber frame walls with composite foil facers both sides, 2400 x 1200 mm, thicknesses 25, 30, 40, 50, 60, 70, 75, 80, 100, 110, 125 and 150 mm. Thermal conductivity 0.022 W/mK. Compressive strength CS(10Y) 140 kPa. Reaction to fire: Euroclass F. Published R-values (m2K/W): 25 mm 1.10, 40 mm 1.80, 50 mm 2.25, 60 mm 2.70, 80 mm 3.60, 100 mm 4.50, 120 mm 5.65.

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27. supplier figure RN-9TK54X

    Unilin Insulation (formerly Xtratherm)

    PIR thermal laminate bonded to 12.5 mm plasterboard, kraft paper facings, 2400 x 1200 mm. Overall thicknesses 37.5, 50.5, 62.5, 72.5, 82.5 and 92.5 mm. Thermal conductivity 0.022 W/mK (PIR only). Reaction to fire: Euroclass B s1 d0. Covered by BBA 23/6997 (2026).

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28. 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.

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29. 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.

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30. 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.

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31. 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.

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32. 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%.

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33. 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.

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34. 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.

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