RenovationNotes

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 5 of 7.

  1. supplier figure RN-R96EYL

    IG Lintels (Keystone Group)

    L1/S 50, SKU SK50, standard load lintel for the narrow 50-65 mm cavities common in older housing, 102 mm outer leaf, 100 mm inner leaf. Loading table by manufactured length: 600-1200 mm, 79 mm high, 1.6 mm steel, total UDL 12 kN at a 3:1 load ratio and 10 kN at 19:1; 1350-1500 mm, 96 mm high, 1.8 mm steel, 14 kN and 12 kN; the range continues from 1650-1800 mm upward. Made in 150 mm length increments.

  2. supplier figure RN-IMDK0U

    IG Lintels (Keystone Group)

    L1/XHD 100 extra heavy duty lintel for 90-105 mm cavities, 102 mm outer leaf, 100 mm inner leaf. Total UDL at 3:1 and 19:1: 600-1500 mm, 162 mm high, 3.2 mm steel, 50 kN and 45 kN; 1650-1800 mm, 162 mm high, 3.2 mm, 50 kN and 45 kN; 1950-2100 mm, 199 mm high, 3.2 mm, 55 kN and 45 kN; 2250-2700 mm, 199 mm high, 3.2 mm, 50 kN. Made in 150 mm length increments.

  3. supplier figure RN-IOTSIQ

    IG Lintels (Keystone Group)

    L9 solid wall lintel, SKU SW/K. Total UDL by length band: 600-1200 mm, 58 mm high, 2.5 mm steel, 6 kN; 1350-1650 mm, 93 mm high, 2.5 mm, 8 kN; 1800-2100 mm, 94 mm high, 2.9 mm, 8 kN; 2250-2700 mm, 117 mm high, 3.0 mm, 10 kN. IG state the lintel must be built in as shown to achieve the loading figures, and that lintels may be propped to speed construction.

  4. supplier figure RN-U0I7NA

    IG Lintels (Keystone Group)

    The full IG load-table book, CI/SfB Hh2 (31.9). Lintels are designed to BS 5977 Part 2 1983 and BS EN 845-2:2003, tabulated at both a 3:1 and a 19:1 inner-to-outer load ratio. L1/S 100 for 90-105 mm cavities: height 88 mm and 1.6 mm steel at 600-1200 mm giving 12 kN at 3:1 and 10 kN at 19:1, rising through 107 mm/19 kN, 125 mm/21 kN, 150 mm/23 kN, 162 mm/27 kN to 200 mm high 3.4 mm steel at 4200-4800 mm giving 27 kN and 22 kN. L1/S 110, 130 and 150 for 110-125, 130-145 and 150-165 mm cavities all run 16/22/24/27/26/25 kN at 3:1. L1/HD 100 gives 30 kN to 1500 mm and 40 kN from 1650 to 3000 mm. INT 100 solid wall lintel: 900 mm overall for a 700 mm maximum span at 7 kN, up to 1200 mm overall for a 1000 mm span at 7 kN, not suitable for floor loads. L9/SW 100 for 100-150 mm solid walls gives 6 to 10 kN. The insulation is expanded polystyrene at 0.03 W/mK, CFC and formaldehyde free. A damp proof course is required over all lintels.

  5. supplier figure RN-A9044P

    IKO PLC

    IKO Hyload Original damp proof course: 1.25mm thick, supplied in 20m (20,000mm) rolls in widths of 100, 112.5, 150, 175, 225, 275, 300, 337.5, 350, 360, 375, 400, 450, 500, 525, 600, 650, 700, 750, 800, 900 and 1000mm. BBA certified since 1967 and CE marked.

  6. supplier figure RN-5A7R2N

    James Hardie

    Fibre cement tile backer board in 6 mm and 12 mm thicknesses, both 1200 x 800 mm. Weight 9 kg for the 6 mm board and 13.8 kg for the 12 mm board. Reaction to Fire A1 for both. Stated hanging weight capacity 200 kg/m2, for residential projects on timber studs only; commercial projects using metal stud profiles require engineer input. Cut by score and snap or standard power tools and screwed to timber, metal or masonry substructures.

  7. supplier figure RN-4AK512

    James Hardie

    Large format fibre cement facade board in 8 mm and 11 mm thicknesses. Sheet sizes raw 2438 mm (net 2428 mm) and raw 3048 mm (net 3038 mm) long by raw 1220 mm (net 1210 mm) wide. Weight 10.2 kg/m2 at 8 mm and 14.4 kg/m2 at 11 mm. Fire Classification A2-s1, d0 for both thicknesses. Natural fibre cement texture, 6 standard colours with custom colour on request.

  8. supplier figure RN-JIYLQJ

    James Hardie

    Medium density fibre cement weatherboard with a ColourPlus finish. Thickness 8 mm, length 3600 mm, width 180 mm with a 150 to 180 mm visible surface. Weight 7.4 kg per piece; 1.85 pieces per m2 including overlap. Fire Classification A2-s1, d0. Cedar or smooth texture, 21 standard colours.

  9. supplier figure RN-XR6MCG

    James Hardie

    Fibre cement plank with a cedar texture. Thickness 11 mm, length 3600 mm, width 214 mm with a 182 mm visible surface. Weight 10.5 kg per piece; 1.52 pieces per m2. Fire Classification A2-s1, d0. Eight standard colours.

  10. supplier figure RN-4WZ6B3

    K Rend (Kilwaughter Minerals)

    Cement based polymer modified basecoat, 25 kg sacks, mixed with 5 to 6 litres of clean water and at least 5 minutes mixing. Coverage 1.8 kg per mm thickness per m2, requiring approximately 8 to 11 kg/m2 at a nominal 4 to 6 mm thickness. Kitemark classifications: compressive strength CS IV, capillary water absorption category W2, thermal conductivity P=50% 0.46. Also used as an insulation bedding adhesive for polystyrene boards onto masonry, applied as a continuous perimeter line plus centre dabs covering at least 50% of the board, or with a notched trowel over the whole board face. Alkali resistant reinforcing mesh may be required.

  11. supplier figure RN-A5WNP7

    K Rend (Kilwaughter Minerals)

    Modified acrylic bonding coat used to improve adhesion of K Rend renders to difficult substrates. Density approximately 1.2 kg/m3 as stated on the sheet. Coverage approximately 0.25 to 0.45 kg/m2 depending on substrate. Tools and equipment cleaned with water immediately after use.

  12. supplier figure RN-CVW55A

    K Rend (Kilwaughter Minerals)

    Water repellent, cement based, polymer modified self coloured render supplied in 25 kg sacks, Kitemarked and CE marked to BS EN 998-1:2010. Mixing 4 to 5 litres of clean water per 25 kg sack, 10 minutes mixing, open time approximately one hour. One coat coverage 1.6 kg per mm thickness per m2; one coat requires approximately 26 to 32 kg/m2 at a nominal 16 to 20 mm thickness, normally applied in two passes. Kitemark classifications: compressive strength CS II, capillary water absorption category W2, thermal conductivity P=50% 0.43. Applied with a 12 mm or 14 mm mortar nozzle, levelled to 4 to 8 mm per pass, with most finishes at a recommended finished thickness of 12 to 14 mm and a minimum 10 mm of coloured K Rend left.

  13. supplier figure RN-RPDNZT

    K Rend (Kilwaughter Minerals)

    Ready to use organic resin thin coat render with silicone resin emulsion and acrylic dispersion, supplied in 25 kg buckets. Coverage by grain size: TC 05 (largest grain 0.5 mm) about 16 m2 per 25 kg bucket or 1.6 kg/m2 by hand and about 20 m2 or 1.3 kg/m2 sprayed; TC 10 (1.0 mm) about 14 m2 or 1.8 kg/m2; TC 15 (1.5 mm) about 10 m2 or 2.5 kg/m2; TC 30 (3.0 mm) about 5 m2 or 5 kg/m2. Classified to BS EN 15824: 2009: water vapour permeability Category V2, water absorption Category W3, adhesion 0.65 MPa, thermal conductivity lambda10 dry 0.83 (P=50%) and 0.93 (P=90%), density approximately 1,800 kg/m3, designation Coating Material DIN 18558 P Org 1. Reaction to fire Class A2-s1,d0. Substrate and air minimum 5 C at application; allow freshly applied basecoats a minimum of 14 days; prime with K Rend Primer TC and allow 24 hours.

  14. supplier figure RN-DCOEEL

    Keystone Lintels

    HT/S+ standard load Hi-therm+ lintel tables. HT/S+ 100 for 90-105 mm cavities, made in 150 mm length increments, total UDL quoted at 3:1 and 19:1 inner-to-outer ratios: 600-1200 mm, 100 mm high, 1.6 mm steel, 12 kN and 10 kN; 1350-1500 mm, 107 mm, 2.0 mm, 16 and 13; 1650-1800 mm, 150 mm, 2.0 mm, 19 and 16; 1950-2100 mm, 150 mm, 2.0/2.5 mm, 21 and 17; 2250-2400 mm, 175 mm, 23 and 18; 2550-2700 mm, 190 mm, 2.5 mm, 27 and 22; 2850-3000 mm, 190 mm, 27 and 20; 3150-3600 mm, 234 mm, 2.9 mm, 27 and 20; 3750-4200 mm, 234 mm, 3.2 mm, 27 and 22. HT/S+ 110 and wider cavities follow on the same page.

  15. supplier figure RN-S50D2W

    Kingspan Insulation

    Rock mineral fibre slab with a thermal conductivity of 0.036 W/mK and a density of 28 to 32 kg/m3. Slab size 1.22 m x 0.61 m, so 610 mm wide slabs friction fit between studs at 600 mm centres. Fire: under System 1 AVCP, K-Roc Framing Slab achieves European Classification (Euroclass) A1 when classified to EN 13501-1: 2018. Supporting fire resistance test reports to BS EN 1364-1: 2015 and a BS EN 13501-2: 2016 classification report are listed.

  16. supplier figure RN-F3IQXN

    Kingspan Insulation

    Partial fill cavity board, phenolic core to BS EN 13166: 2012 + A2: 2016. Thermal conductivity 0.019 W/mK. Declared compressive strength 100 kPa to BS EN 826: 2013. Board size 1200 x 450 mm. BBA Certificate 16/5299 covers thicknesses 25 to 150 mm from Pembridge. Published R-values (m2K/W): 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, 110 mm 5.75, 120 mm 6.30, 150 mm 7.85. Fire: under System 4 AVCP, K108 has a Euroclass rating of F.

  17. supplier figure RN-OOC1K5

    Kingspan Insulation

    Phenolic framing board, 2400 x 1200 mm, thermal conductivity 0.019 W/mK. Declared compressive strength 100 kPa to BS EN 826: 2013. BBA Certificate covers thicknesses 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, 110 mm 5.75, 120 mm 6.30, 130 mm 6.80, 140 mm 7.35, 150 mm 7.85. Fire: under System 4 AVCP, K112 has a Euroclass rating of F. A tested wall build-up of 32.5 mm K118 on 89 x 38 mm studs at 600 mm centres with 50 mm K112, 9 mm OSB and nilvent membrane achieved 41 minutes integrity, insulation and loadbearing capacity under EN 13501-2: 2016 (report EUI-21-000441, 8 February 2022).

  18. supplier figure RN-O2O37D

    Kingspan Insulation

    Phenolic insulation core bonded to 12.5 mm tapered edge gypsum plasterboard, board size 2400 x 1200 mm. Insulation core thermal conductivity 0.019 W/mK; plasterboard component 0.19 W/mK. Published R-values by product thickness (m2K/W): 25 mm 1.30, 30 mm 1.55, 40 mm 2.10, 45 mm 2.35, 50 mm 2.60, 60 mm 3.15, 70 mm 3.65, 80 mm 4.20, plus 0.065 for the 12.5 mm plasterboard component. Water vapour resistance of the non-plasterboard component typically greater than 100 MNs/g to BS EN 12086: 2013; take the plasterboard component as 50 MNs/gm resistivity for condensation risk. Fire: K118 achieves European Classification (Euroclass) B-s1,d0 when classified to EN 13501-1: 2018, and the plasterboard element alone achieves Euroclass A2-s1,d0.

  19. supplier figure RN-GLCVCX

    Kingspan Insulation

    Phenolic rainscreen board, 2400 x 1200 mm, covered by BBA Certificate 14/5134 in thicknesses 25 to 150 mm. Two declared lambda values: 0.022 W/mK for insulant thickness 25 to 44 mm, and 0.021 W/mK for 45 to 150 mm. Declared compressive strength 100 kPa to BS EN 826: 2013. Published R-values (m2K/W) start at 50 mm 2.35, 60 mm 2.85, 70 mm 3.30. Fire: K15 achieves European Classification (Euroclass) C-s2,d0 when classified to EN 13501-1: 2018, test reference EUI-22-SBI-000057-A, with BS 8414 tested system reports listed separately.

  20. supplier figure RN-NALG7W

    Kingspan Insulation

    Phenolic external wall board for render and brick slip systems, 1200 x 600 mm. Two declared lambda values: 0.022 W/mK for insulant thickness 25 to 44 mm, and 0.021 W/mK for 45 to 100 mm. Declared compressive strength 100 kPa to EN 826: 2013. R-value at 25 mm is 1.10 m2K/W and rises with thickness. Fire: K5 achieves European Classification (Euroclass) C-s2,d0 when classified to EN 13501-1: 2018, test report EUI-22-SBI-000352 and classification report EUI-22-000352.

  21. supplier figure RN-Z9SPFU

    Kingspan Insulation

    Rigid thermoset polyisocyanurate partial fill cavity board faced both sides with a low emissivity composite foil, board size 1200 x 450 mm. Declared thermal conductivity 0.022 W/mK. Declared compressive stress 120 kPa at 10% compression to BS EN 826. Water vapour resistance greater than 50 MNs/g for the insulation core and greater than 100 MNs/g for the composite foil facing to BS EN 12086. BBA coverage stated for thicknesses 25 to 120 mm. Fire: under System 4 AVCP, TW50 has a Euroclass rating of F.

  22. supplier figure RN-HSPYWT

    Kingspan Insulation

    Fibre-free rigid thermoset polyisocyanurate (PIR) board for timber and steel framing to BS EN 13165: 2012 + A2: 2016, low emissivity composite foil both faces. 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 (Pembridge and Selby production). Published R-values (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, 125 mm 5.65, 130 mm 5.90, 140 mm 6.35, 150 mm 6.80, which correspond to a 0.022 W/mK lambda. Fire: under System 4 AVCP, TW55 has a Euroclass rating of F.

  23. supplier figure RN-LMDZSS

    Knauf

    Manufacturer product data for 12.5mm moisture resistant plasterboard. Sheets are 1200mm wide at 2400mm (27.36 kg), 2700mm (30.78 kg) and 3000mm (34.2 kg). Comparing directly with the same maker's standard 12.5mm wallboard at 24.333 kg for a 2400mm sheet, the moisture panel is about 12 per cent heavier for identical dimensions, the additional mass being the water repellent additive in the core. There is no small format sheet in this range, so every board is a two person lift.

  24. supplier figure RN-Q17DQ9

    Knauf

    Manufacturer product data for 12.5mm high density acoustic plasterboard. Sheets are 1200mm wide at 2400mm (33.12 kg), 2700mm (37.26 kg) and 3000mm (41.4 kg), which works out at about 11.5 kg per m2. Set against the same maker's standard 12.5mm wallboard at 24.333 kg for an identical 1200 x 2400mm sheet, the acoustic board is 36 per cent heavier, and that added mass is the entire acoustic mechanism. It is also 8.8 kg heavier per sheet, which is what makes a soundproofing upgrade physically harder work than a plain reboard.

  25. supplier figure RN-65PLTP

    Knauf

    Manufacturer product data for Knauf Soundshield Plus 15mm high density acoustic plasterboard. Boards are 1200mm wide and 15mm thick, supplied at 2400mm, 2700mm and 3000mm lengths weighing 38.304 kg, 43.092 kg and 47.88 kg per board respectively. That works out at roughly 13.3 kg per m2, about a third heavier than standard 12.5mm wallboard, which is the whole point of the board and also the reason a 2.4m sheet is a two person lift. Knauf states that as part of a full Knauf system the 15mm board contributes up to 54 dB Rw sound reduction and up to 120 minutes fire protection, and carries a severe duty impact rating.

  26. supplier figure RN-SHIG71

    Knauf

    Manufacturer product data for standard 12.5mm plasterboard. Sheets are 1200mm wide at 2400mm (24.333 kg), 2500mm (23.7 kg), 2700mm (29.16 kg) and 3000mm (28.44 kg and 29.52 kg on the variants), plus a small 900 x 1800mm sheet at 12.8 kg. The 900 x 1800mm sheet at 12.8 kg is the one that matters for a domestic job because a single person can carry it up a staircase, while a 1200 x 2400mm sheet at over 24 kg needs two. The board is stated as suited to receive a plaster, a ready-mixed finish or direct decoration.

  27. supplier figure RN-AB6IQB

    Knauf

    Manufacturer product data for 9.5mm standard plasterboard, the thinner board normally used on ceilings and for overboarding. Sheets are 1200 x 1800mm at 17.856 kg and 1200 x 2400mm, with a 900mm wide sheet at 10.044 kg. Comparing with the same maker's 12.5mm wallboard at 24.333 kg for a 1200 x 2400mm sheet, the 9.5mm board is meaningfully lighter, which is why it is the ceiling board, but it also has less fire and acoustic mass and needs closer joist centres to avoid sagging.

  28. supplier figure RN-JGE6YW

    Knauf

    Manufacturer product data for standard plasterboard with an integral vapour control layer, the board used on the warm side of an insulated wall or roof to stop moisture reaching the cold structure. Sheets are 1200mm wide at 2400mm (22.75 kg), 2438mm (23.11 kg) and 2700mm (25.6 kg), plus a 900 x 1800mm sheet at 12.8 kg. It is lighter than the same maker's plain 12.5mm wallboard at 2400mm (24.333 kg), so the vapour layer adds no meaningful weight and the choice is purely about the wall build-up.

  29. supplier figure RN-EW72V5

    Knauf Insulation

    Water repellent glass mineral wool full fill cavity slab, 1200 x 455 mm, made with ECOSE Technology binder. Declared thermal conductivity 0.032 W/(mK), the lowest in the DriTherm range. Reaction to fire A1 to EN 13501-1. Available thicknesses 75, 85, 100, 125 and 150 mm. Covered by BBA Certificate 953212 for use in all exposure zones, and a CCPI Assessed Products certificate.

  30. supplier figure RN-Q1M01P

    Knauf Insulation

    Water repellent glass mineral wool full fill cavity slab, 1200 x 455 mm. Declared thermal conductivity 0.034 W/(mK). Reaction to fire A1 to EN 13501-1. Available thicknesses 75, 100, 125 and 150 mm. BBA Agrement certificate covers use in all exposure zones including very severe.

  31. supplier figure RN-N9TXI7

    Knauf Insulation

    Water repellent glass mineral wool full fill cavity slab, 1200 x 455 mm. Declared thermal conductivity 0.037 W/(mK). Reaction to fire A1 to EN 13501-1. Available thicknesses 50, 65, 75, 85, 100, 125 and 150 mm. BBA Agrement certificate covers use in all exposure zones including very severe.

  32. supplier figure RN-N4QJWT

    Knauf Insulation

    Glass mineral wool roll for timber frame between studwork, ECOSE Technology binder. Declared thermal conductivity 0.032 W/(mK), the best in the FrameTherm range. Reaction to fire A1 to EN 13501-1. Supplied 90 mm x 1140 mm x 4500 mm giving R 2.80 (m2K)/W and 5.13 m2 per roll, and 140 mm x 1140 mm x 2800 mm giving R 4.35 (m2K)/W and 3.19 m2 per roll. Rolls are ready-cut into 2 x 570 mm or 3 x 380 mm widths to friction fit between studs.

  33. supplier figure RN-HJDFIE

    Knauf Insulation

    Glass mineral wool multi purpose roll for timber and steel frame construction, partially perforated, made with ECOSE Technology. Declared thermal conductivity 0.040 W/(mK). Reaction to fire A1 to EN 13501-1. Supplied 570 mm wide: 100 mm x 6,800 mm giving R 2.25 (m2K)/W and 8.16 m2 per roll; 150 mm x 4,550 mm giving R 3.75 and 5.46 m2; 200 mm x 3,400 mm giving R 5.00 and 4.08 m2.

  34. supplier figure RN-EG6C8P

    Knauf Insulation

    Glass mineral wool multi purpose slab, 1200 mm long in 400 mm and 600 mm widths, ECOSE Technology binder. Declared thermal conductivity 0.035 W/(mK). Reaction to fire A1 to EN 13501-1. Published R-values by thickness: 50 mm 1.40, 70 mm 2.00, 75 mm 2.10, 100 mm 2.85, 140 mm 4.00, 150 mm 4.25 (m2K)/W. Holds BBA Agrement certificate 24/7110 for use as insulation between rainscreen facade systems, and a BBA certificate for timber and steel frame construction.

  35. supplier figure RN-1K74QO

    Knauf Insulation

    Rock mineral wool slab for external wall insulation systems, 1200 x 600 mm, adhered and mechanically fixed or mechanically fixed only. Declared thermal conductivity 0.036 W/(mK). Reaction to fire A1 to EN 13501-1, which Knauf states removes the need for fire barriers in the system. Thicknesses 60, 90, 100, 120, 150, 170, 200, 230, 250 and 270 mm. BBA Agrement certificate 24/7271.

  36. supplier figure RN-H0NKXE

    Knauf Insulation

    Rock mineral wool slab, 1200 x 600 mm, ECOSE Technology binder, for thermal, fire protection and acoustic applications. Declared thermal conductivity 0.035 W/(mK). Reaction to fire A1 to EN 13501-1. Published R-values by thickness: 25 mm 0.70, 30 mm 0.85, 40 mm 1.10, 50 mm 1.40, 60 mm 1.70, 75 mm 2.10, 100 mm 2.85, 150 mm 4.25 (m2K)/W. Optional factory applied foil or tissue facing.

  37. supplier figure RN-7WQTBY

    Knauf Insulation

    Glass mineral blowing wool for external full fill masonry cavity walls, injected rather than boarded. Thermal conductivity 0.034 W/mK at the recommended installed density of 25 kg/m3. Non combustible with a Euroclass A1 reaction to fire classification.

  38. supplier figure RN-JYSDMN

    Lignacite

    Product data updated 8 January 2026. Expanded clay aggregate block. Face size 440 x 215 mm, thickness 100 mm and 140 mm, mean unit strength 3.6 N/mm2, Group 1 solid, tolerance Category D1. Net dry density 850 kg/m3. Thermal conductivity 0.27 W/mK at 3% moisture, internal use. Reaction to fire Class A1, moisture movement 0.6 mm/m, frost resistance to PD 6697 Table 15. BS EN 771-3, BSI Kitemarked, Category 1. Lignacite direct that a 7.3 N/mm2 block such as Lignacrete Standard is used below ground rather than Fibo 850, and note the low self weight suits partitions built off a floor slab.

  39. supplier figure RN-KJV7RG

    Lignacite

    Product data updated 5 June 2026. Fine textured block available paint grade or fair face. Face size 440 x 215 mm, thickness 100 mm and 140 mm, mean unit strength 3.6, 7.3 and 10.4 N/mm2, Group 1 solid, tolerance Category D1. Net dry density 1570 kg/m3 for 100 mm blocks. Thermal conductivity 0.90 W/mK at 3% moisture, internal use, for 100 mm blocks. Air permeability unfinished: 3.0 m3/hr/m2 for 100 mm solid blocks and 2.8 for 140 mm SP solid blocks. The 140 mm Lignacite SP uses a modified mix to optimise density as a solid block. Lignacite recommend 210-215 mm walls be built as two leaves of 100 mm blocks laid back to back and tied.

  40. supplier figure RN-7RJFBX

    Lignacite

    Product data updated 22 December 2025. Face size 440 x 215 mm, thickness 100 mm and 140 mm. Mean unit strength 3.6, 7.3 and 10.4 N/mm2. Group 1 solid blocks, dimensional tolerance Category D1, net dry density 1450 kg/m3. Thermal conductivity 0.47 W/mK at 3% moisture (internal use) and 0.51 W/mK at 5% moisture (external use). Reaction to fire Class A1, moisture movement less than 0.5 mm/m, frost resistance to PD 6697 Table 15. BSI Kitemarked and certified to BS EN 771-3, Category 1 masonry units. Lignacite recommend 215 mm walls be built from 100 mm blocks laid flat, and that 7.3 N/mm2 blocks be used below ground where exposed to external soil. 3.6 or 7.3 N/mm2 blocks are used as beam and block infill, with the 3.6 N transverse tested.