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Thermalite blocks Travis Perkins

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H+HÕs Celcon Blocks High Strength Grade (7.3N/mm2 Ð identified with a black stripe on the block) is ideal where higher compressive strengths are required such as in the foundations and lower storeys of three storey buildings, piers under high vertical loads and in multi-storey buildings Thermalite: cost-effective build solutions for floor, wall and below ground construction. The range of strength, thermal conductivity and density properties, coupled with its availability in a variety of weights and dimensions, means there is a Thermalite aircrete block for almost every application, from internal and external walls to foundations with the unique tongue and grooved trenchblocks. Blocks supplied will be either 3.6n Celcon Standard aerated lightweight blocks or 3.6n Thermalite Shield aerated block depending on your location. For full technical details on either product, please look in our block category in the left hand menu and select the aerated lightweight blocks sub-category Bricks and blocks play an essential part in the construction of almost all commercial and domestic properties. Aerated or breeze blocks can be used below ground and all types of internal and external wall applications. These are lighter in weight and offer high thermal insulation and acoustic. 100mm 3.6n Celcon/Thermalite Thermal Block. A structural building block that is lightweight, versatile and robust. Celcon/Thermalite Standard grade is extremely versatile and can be used below DPC as infill for Beam and Block flooring systems, as well as above the ground in the walling applications listed

Thermalite Block Turbo 2.9N 440 x 215 x 100mm. The Thermalite Turbo Block 2.9N 100mm is manufactured from aerated concrete, which means it offers fantastic thermal properties in applications where low U-values are required. They are slightly lighter than the Thermalite Shield blocks, so can be laid quicker and easier on site Also available are the popular 7N 100mm concrete blocks suitable for a variety of applications, both internal and external, above or below the ground. So whatever you're building, get the right kind of concrete block or Thermalite Block at your local Selco. Need your Block supplies at Trade-Only Prices. We've Got It Thermalite Blocks 26 Brand New, 440mm x 215mm x 150mm, Coventry Grab a bargain, Collect from CV3 3DZ. These are larger than the standard block. £35. Ad posted 17 days ago Save this ad 1 images; Thermalite blocks Newcastle, Tyne and Wear Shield thermalite blocks . 440x 215 x 100 mm . 60 per pack . Can be forklifted onto van

More details. Thermalite Trench Block 3.6N T&G 400 x 215 x 300mm. JD102180. SKU: JD102180. Trade Sign in or apply for trade prices. £ 11 .29 inc VAT each. £112.90 per square metre. Loading. More details Forterra Thermalite Turbo offers very high thermal insulation properties so is ideal for external applications where low U-values are required. Read full description See specs. Quantity. Add to Trolley. Add to Wish List. 43 In Stock. 100mm Thermalite Turbo Aircrete Block 2.9N 215mm x 440mm is available to buy in increments of 120 Thermalite Shield Block 3.6N 100mm | Buildbase Builders Merchants is a national supplier of building materials open to both trade and public. Known for our friendly approach and local service we supply everything you need for a building project including: bricks,concrete blocks, timber, landscaping, sand and gravel, plasterboard and insulation 440mm x 215mm x 100mm Thermalite Hi-Strength Block 7N. Sign in or select a branch to view prices, availability and add to basket. Add to basket. More info. 440mm x 215mm x 100mm Ytong Aircrete Standard Block 3.6N. Sign in or select a branch to view prices, availability and add to basket At Buildbase we stock Hi-Strength Thermalite Trench Blocks 7.3N 300mm. We use cookies to help give you the best experience on our website. If you continue without changing your settings, we'll assume that you are happy to receive all cookies on the website

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Travis Perkins Builders Merchants, Building Supplies

Breeze Blocks Cinder Blocks Travis Perkin

  1. Whether you're looking for standard concrete building blocks, high-density, light-weight or thermalite breezeblocks you will check we bring a block to meet your specification. Buildbase supplies a range of concrete blocks from leading manufacturers across the UK including Lignacite, Tarmac, Cemex, Thermalite, Forterra, Plasmor + Armstrong
  2. to concrete blocks. EH Smith is an authorised distributor of Porotherm, the precision-engineered clay block walling system from Wienerberger which is designed to provide a faster, dryer, safer and more sustainable building process. Visit no
  3. FIBOLITE is an ultra lightweight load bearing block manufactured from Plasmor's own man-made expanded clay. Expanded clay nodules are produced by sophisticated pyrogenic technology whereby geochemically specific clay is expanded in a rotary kiln at high temperature
  4. We supply cheap bricks. Brick express can deliver your brick requirements usually by the very next day. We deliver nationwide UK. Call: 0330 900 3455 For Cheap bricks. 팯 Ibstock, Hanson, Wienerberger and Carlton brick supplier
  5. Mannok's Fleet Replenishment Programme reached another milestone in April with the delivery of 15 new SDC curtainsider trailers. This is the latest phase of the Programme to replace all older vehicles and plant with upgraded new vehicles, therefore reducing environmental impact, providing greater efficiencies and ensuring increasing demands are met
  6. Rockwool Thermal Roll 2750x1200x100mm (6.6m2) (Pack 2) Be the first to review this product. Was £65.04. £54.20. Now £49.99. £41.66. Brett Broadway Economy Riven Paving Buff 600x600x32mm. Be the first to review this product. Was £7.64

Thermalite Block Shield 3.6N 440 x 215 x 100mm. BLTLE267. SKU: BLTLE267. Trade Sign in or apply for trade prices. £ 2 .29 inc VAT each. £22.90 per square metre. Loading. More details. Solid Dense Concrete Block 10N 440 x 215 x 100mm I would say go for a concrete block because if your trying to keep the cost down then you would probably only want a single skin. If you want it warm inside then I would recommend and double skin with thermalite blocks on the outside insulation in your cavity. Answered 3rd May 2017 Like 1. Related Questions. Welcome to Kellaway Building Supplies. A friendly, independent, family owned business priding itself on being the Merchant of Choice

CRS Building Supplies Limited - Predominantly based in the Somerset Area, serving quality building materials to both trade and the general public Browse our huge range of; kitchens, bathrooms, doors, windows and 1000's more specialist products online, ready to pick up at your local branch today Building essentials from top brands like Blue Circle, Tarmac, Silka and U-Can. Roofing Supplies. Roofing supplies including sheets, felts, felt adhesives, flashings, tiles and sealants. Insulation & Damp Proofing. Browse a wide range of draught excluders, insulation boards, loft rolls and damp proof membranes. Plastering Supplies

This stops the dry blocks from sucking the water out of the render. Apply 5-10mm of render using a plastering trowel. Keep wetting the blocks so the render goes on, and stays on, easily. Step 6 Once the render is fully dry (after a further 24 hours) make the edge with half sleepers. Secure them by screwing offcuts of sleeper inside the blockwork Because of their weight, hitting a block will cause the one underneath (if you are more than 1 course up) to move also and laying a block wall, even though the blocks are heavy and cumbersome, requires a light touch. We would not recommend laying more than 5 courses of blocks in one go. Lightweight Blocks (Thermalite Blocks

Foundation (trench) blocks 7.3N/mm². Our foundation blocks have a 300mm wide dimension which allows for a 100mm inside and 100mm outside skin of blockwork or brickwork to be built, leaving a 100mm cavity. Wider cavities or thicker block widths can be accommodated by using the F350 foundation block laid with the 350mm dimension across the wall Bricks & Blocks; 8 Items. Sort By. 65mm Concrete Common Bricks. From £0.19 Ex VAT From £0.23 Inc VAT. 65mm Class B Engineering Brick. 446490281. £0.42 Ex VAT £0.50 Inc VAT. 65mm Baggeridge Tabasco Red Brick. 446492100. £0.61 Ex VAT £0.73 Inc VAT. 65mm Harvest Buff Multi Brick. The system consists of inverted pre-stressed T-beams with either lightweight aircrete (Thermalite) or dense and medium dense aggregate block infill. Beam and block is a robust solution for cost-effective suspended floors. It is suitable for use on ground and upper floors in all kinds of construction, from residential to commercial buildings

Building Materials. Order your essential building materials today. Everything for landscaping and construction projects delivered free to your door, including and aggregates, bricks and blocks, roofing, insulation and underground drainage. Reliable brands at trade prices They are used on exposed surfaces where appearance is important. We offer a range of type, size and a fantastic choice of colours including: Red facing bricks. Grey facing bricks. Blue facing bricks. Yellow facing bricks. These bricks typically come in sizes 65mm, 68mm, and 73mm and offer styles such as wire cut, drag wire, smooth and rustic Celcon Foundation Block 355mm Palleted 3.6N/mm2 SFC355/30 Celcon Block Standard Grade. Celcon Blocks Standard Grade is BBA certified and has a compressive strength of 3.6N/mm2. Due to its all round performance, it is possible for a 100mm Standard grade Celcon Block to be used throughout a build, eliminating on-site confusion

Concrete Aerated Building Blocks - Travis Perkin

J Medler Ltd was established by John Medler in 1973. The company has developed into one of East Anglia's leading brick, block and roof tile specialists. The Norwich based, family owned, independent specialist builders merchant has a highly trained and knowledgeable sales force Hemelite coursing bricks are produced to conform to Class A1 to BS EN 13501 giving proven fire resistance for specified periods of time. Reduced wastage. Hemelite coursing bricks are ideal for infilling, around openings such as windows and doors and other situations where a smaller block is required. This allows for less wastage of materials 2000 Solid Dense Midi Block (Standard Finish) Can be used in a variety of internal & external applications, including above and below the ground or where strength and durability are prime considerations. Typically used in cavity or solid wall constructions, also ideal for use in internal load bearing walls Thomas Armstrong (Holdings) Ltd Workington Road Flimby Maryport Cumbria CA15 8RY Tel: 01900 68211 Fax: 01900 60267 Selco is the UK's fastest growing builders merchant. Visit our site for trade-only prices and latest special offers. Order online for free bulky deliverie

H+H Celcon Standard Aerated Concrete - Travis Perkin

Drywall Fine Thread Screws 3.5 x 38mm Black (Box of 1000) £ 10. .55 inc VAT. Dow Great Stuff Pro All Direction Foam 750ml Pink. £ 10. .20 inc VAT. Rawlplug Styrene Free Resin 300ml. £ 5. .99 inc VAT Thermalite Shield Aircrete Block 440 x 215 x 125mm. Be the first to review this product and get 50 reward points. SKU. TBS125. Availability - Generally available in 5-7 working days. This product is currently only available in our local delivery area. Check our network coverage Bricks for Sale, Buy House & Engineering Bricks Online from Huws Gray - Huws Gray Ltd. NATIONAL SALES: 0844 335 0601. LLAY (Wrexham): 01978 855000. WARRINGTON: 01925 445865. Home

Thermalite from Forterra [UK's Leading Building Blocks

Each block has a grooved edge to ensure even course width.Read more. Marshalls Drivesett Natrale Textured Driveway Block Paving - Marshalls Drivesett Natrale has a split natural stone effect, making it a cost effective concrete alternative to Natural Stone setts. There are four sizes and three colours to choose from, giving you a number of. Concrete Block high density 140mm x 440mm x 215mm new (cost new £3.12) Redbridge, London. Strong concrete blocks left over from a new garage build. These cost over £3 new so a bargain price at £1.00 each. There are 10 in total. Collect from Gants Hill IG2 with good parking for pickup. Thanks for looking Rob Aggregate Industries Dense Concrete Block (L)440mm (W)100mm. Full star. Full star. Full star. Empty star. Empty star. Write a review. £1.66. £1.56 per brick when you purchase in multiples of 72

100mm 3.6n Celcon Standard/Thermalite Shield Block (Pack ..

They are manufactured to BS EN 771-3 using Class 1 limestone aggregates. Hollow blocks are available in a face size of 440 x 215mm and in thicknesses of 140mm and 215mm in a standard finish (suitable for rendering). They are primarily used in locations that require construction using a reinforced concrete wall and in agricultural buildings Find your nearest MKM branch, and choose a branch to see product availabilit

TOPCRETE RPW installation and quantities. For constructions using the RPW concrete block the design and installation should be in accordance with BS 5628-1 and 3. These blocks are 290mm x 140mm x 190mm and are designed to be used to construct a 190mm thick sound separating solid wall. For estimating purposes, the following number of blocks are. Travis Perkins Trading Co Ltd - Lodge Way House, Lodge Way, Harlestone Road, Northampton, Northamptonshire, NN5 7UG, 01604 752424 What mortar mix do you use for 7 newton dense trench blocks? Usually with this type of block and in this particular circumstance a ratio of 1:3 ,that is 1 of cement to 3 of sand will suffice Standard, UK, metric blocks are roughly 450 x 215 x 100mm (some are thicker but this will not effect the number of blocks required per square metre of wall), the mortar joints used are normally about 10mm both horizontally and vertically. A single block wall requires 10 blocks per square metre. So the total number of blocks for the wall is Keyline is the UK's number one supplier of specialist civils and drainage solutions, and specialist rail and utilities materials. We have a nationwide network of over 40 branches covering the UK, stocking a huge range of materials for all of your building projects

Bricks & blocks Building supplies B&

  1. ates. For direct bonding of plasterboard. Also known as 'Dot and Dab'. High bond strength and reliability. Estimating guide approx. 4.6m2 per bag (for direct bonding
  2. London Brick is a brand built on heritage, pride, quality and integrity and is supported by Forterra's detailed knowledge and technical know-how. It also receives loyal support from builders' merchants and from the bricklaying community - many of whom will have used London Brick in their college training
  3. Wickes range of Engineering and Facing bricks comply with British Standard requirements. They are suitable for above or below ground and available in most regional styles. We stock class B engineering bricks which are durable against frost proof and suitable for above and below ground construction. Wickes facing bricks are offered in a range of.
  4. Bricks, Blocks & Lintels; Bricks; Engineering Bricks; Engineering Bricks. Filter results Clear all Filter results Clear all View results. Filter products. Sort by: Marshalls Red Perferated Engineering Brick - 215 x 100 x 65mm (0) £0.49. £0.49 per EACH. Class B Red Engineering Brick 65mm (322) £0.49. £0.49 per EACH.
  5. 140mm Concrete blocks High Dense 7.3n 48 Blocks Per Pack 440x215x140m @£80 Exc. £80.00. 0 bids. or Best Offer. Ending 4 May at 3:30PM BST. 6d 5h Collection in person
  6. Breeze Block 100mm 7.3N 440x215x100mm Various Quantities (Cheapest on Ebay) £72.50 to £604.80. Free postage. 43 sold. Blue engineering bricks 215x100x65mm. Unused surplus from job. £300 for 390. £300.00. Collection in person. or Best Offer
  7. Hanson UK is a leading supplier of heavy building materials to the construction industry. We are part of the HeidelbergCement Group, one of the largest building materials manufacturers in the world, the global market leader in aggregates which also has leading positions in cement, concrete and other downstream activities

Creating insulation solutions for the comfort of everyone. Our extensive range of thermal and acoustic insulation solutions are marketed under the. Celotex and ISOVER brands. Select a product Celotex Thermaclass Cavity Wall 21 Celotex CW4000 Celotex GA4000 Celotex PL4000 Celotex TB4000 Celotex XR4000 ISOVER Acoustic Partition Roll (APR 1200. Choose the polyester resin chemical anchor for fixing studs into brick and block work or the Everbuild Anchorset green 300 chemical anchor for heavy duty loads, perfect for satellite dish mountings, gate hinges and balcony rails. Browse a range of threaded studs for use in concrete and natural stone, such as the zinc plated steel Fischer RGM. Builders Merchants Journal At the forefront of publishing to the UK merchanting industry for more than 95 year

100mm 3.6n Celcon/Thermalite Thermal Bloc

  1. Brand new bricks surplus to requirements after building an extension. Originally purchased from Travis Perkins. Very popular brick used on many new builds/extensions. Fantastic deal at only 50p per brick. Collection only. 550 bricks available. Buye
  2. Press release. 17.06.2021. As part of ongoing plans to expand its concrete offering across the West Midlands, Aggregate Industries has opened a new ready mix concrete plant in Coleshill, Warwickshire. One of the leading construction materials supplier's largest plants to date, the new state-of-the-art facility has the capacity to produce 110m3/h
  3. Strata Stones - Walling - Mint Blocks. Product Option. Price (inc VAT) (Per pack) 325 x 100 x 65mm (210) (6.825m 2) £552.72. per pack
  4. Home of the Original Gorilla Glue, Gorilla Tape®, Gorilla® Super Glue, Gorilla® Construction Adhesive, and other premium tapes, sealants, and adhesives. At Gorilla, we believe in high-quality products and choose to only put the Gorilla logo on products that meet rigorous development standards
  5. MBS Building Supplies | Builders' Merchant. Kent and the South East's. favourite supplier of. building materials. and aggregates Bricks and blocks, lintels. and metalwork, cement. and landscaping materials Certificated planed timber in. standard and long lengths Paving and landscaping

The load on a lintel comes from: Masonry. Roof Loads: Truss/Attic/Cut/. Floor Loads: Joists/Slabs/. Live Loads: Residential use/Commercial use/Industrial use/. Combination of above. NOTE: If you are not skilled in assessing loads please contact IG's Technical Team on 01633 486 486 Builders Merchants, Building Supplies - We are an independent builders merchant specializing in building and roofing supplies and much more based in the North of England - JT Atkinso The Roof Centre. Roofing, Building, Landscaping supplies Kidderminster. YOU CAN NOW PLACE YOUR ORDER ONLINE. Order your materials here. Please Be Reminded All Prices Shown On The Website Are PLUS VAT but are subject to change on a daily basis

by Old Dragon » August 9th, 2012, 9:36 am. donmazzei wrote: also been told to get the solid black blocks not the grey ? That would be the Thermalite (pale grey lightweight) blocks, they're not strong enough for pond construction. We used hollow blocks and filled with concrete. It's going nowhere Building Supplies Online has a wide range of Cheap Bricks for sale starting with our own brand Solid Dense 100mm 7.3N Concrete Brick. Our concrete brick is an industry standard building brick and can be delivered throughout the UK. We also stock 4 other main Building Brick and House Brick manufacturers enabling us to provide Cheap Bricks for.

300mm Celcon Foundation Block. 3.6N/mm² Foundation Blocks can be used to support 3 storey constructions. They are suitable for the support of solid or cavity walls, framed construction or suspended floors, including beam and block . Size: 300x440x215mm Aero Block 100mm Dense concrete blocks can be used in a variety of projects from two-storey housing to multi-storey developments and commercial buildings. A range of high strength concrete building blocks, robust, load bearing units for use in either internal or external walls in a variety of sizes, strengths and finishes offering total flexibility The slots in the decking blocks are designed to hold 50mm (2) floor support timbers. The square recess in the centre will hold a 100mm x 100mm (4 x 4) timber post. If you are using decking blocks to support your joists, you will need to make sure they are on a flat surface so that the base will be completely level From time to time our suppliers are forced to increase their prices due to the changing nature of manufacturing, the cost of raw materials or haulage costs. We let you know in advance so that you can make a conscious decision whether to buy early and beat the increases, or plan to pass on the changes to price Firebricks. Our Firebricks are 38-42 Grade and can withstand temperatures up to 1400 degrees Celsius. Fire bricks make excellent abrasive resistant floors, such as those found on the Hearths & Floors of Pizza Ovens , wood ovens, Kilns, furnaces and other applications. We can also supply these Fireclay bricks cut to specific drawings

Concrete Block Range. A range of high quality internal and external solutions for your building applications. As part of CEMEX, a global building solutions company and leading supplier of cement, ready-mixed concrete and aggregates, we are dedicated to our customers and the environment in which we live. We continually strive to improve and. So are they going to build an average of 53 a blocks each day. Should be no more than 5-6 days. Each brickie should be building 250-300 blocks in a day esp with no insulation to worry about. As long as the studs are marked out to nail the ties in they should be waiting on you to lift scaffolding and to load it out

Professional Traders (2015) Limited offers every type of building material, including a comprehensive stock of brick, blocks, drainage, landscaping and fencing materials as well as loose aggregates 140mm 7n Dense Concrete Block, 440x215x140mm. 48 block per pallet. Can be used in a variety of internal & external applications, including above and below the ground or where strength and durability are prime considerations. Typically used in cavity or solid wall constructions, also ideal for use in internal load bearing walls CEMEX beam and block floor installation guide. CEMEX specialise in production of both traditional beam and block as well as insulated floor systems. In addition CEMEX supply a wide range of accessories including vents and clips MKM Edinburgh is your local independent building & plumbing merchant in Edinburgh. We're your one stop shop for your building, timber, plumbing and heating supplies. But we're more than just a builders' merchant - you'll also find kitchens, bathrooms, joinery and landscaping supplies here at MKM

Travis Perkins Discount Code & Coupon Code - February 2019

Thermalite Block Turbo 2

  1. London Brick Company Saxon Gold LBC Brick 65mm - Pack of 390. £586.00 Inc. VAT. Add to Compare. Add to Basket. London Brick Company Sandfaced LBC Brick 65mm - Pack of 390. £491.99 Inc. VAT. Add to Compare. Add to Basket. London Brick Company Regency LBC Brick 65mm - Pack of 390
  2. Fireplace, Woodburner Stove, Pizza Oven, BBQ, Villager Stoves Premium Vermiculite FireBrick 230mm x 114mm x 25mm. 4.5 out of 5 stars. 165. £7.99. £7. . 99. Get it Tomorrow, Jun 30. FREE Delivery on your first order shipped by Amazon
  3. Concrete Blocks, High, Medium & Low Density Travis Perkins. Travisperkins.co.uk DA: 23 PA: 50 MOZ Rank: 86. H+H Celcon Standard Aerated Concrete Foundation Block 3.6N 300mm Pack of 40 Available in Standard Grade (3.6N/mm2) and High Strength Grade (7.3N/mm2) Foundation Blocks can be used to support 3 storey constructions

Solid Wall lintels: a complete range of single leaf & block wall lintels, inc Angle & box for internal & external use. Standard medium & heavy duty applications 01373 858 66 Finance Available. Kingspan Kooltherm K118 Insulated Plasterboard 62.5mm 2400mm x 1200mm - 34.56m2 pack (12 sheets) £773.97 ex VAT. £928.76 incl VAT. Add to basket. EcoTherm Eco-Liner Rigid PIR Dry Lining Insulation Board - 2400mm x 1200mm x 37.5mm. £42.25 ex VAT Product Benefits. Coursing Units are produced from the same material as all H+H aircrete and are suitable for the same applications as conventional size Celcon Blocks, allowing consistency within the building fabric. Coursing Units have a face size of 215mm x 65mm and are available in Standard Grade (3.6N/mm2), High Strength Grade (7.3N/mm2. Message to our Customers - Coronavirus Update John A Stephens Ltd is open as normal In order to keep our staff and other customers safe it is mandatory to sanitise your hands an also wear a mask or visor at all times when at John A Stephens this includes being in the Yards, Counter Sales and Shop facilities at both Castle Meadow Road & West Bridgford branches Beesley & Fildes in Huyton is our flagship builders merchant branch. Pop into the store to discover a wide great building and timber products, incredible value for money and a team of highly experienced staff ready to help you out with whatever you need

Concrete Blocks Selco Selc

  1. Price: £14.59. Ex Tax: £12.16. Price in reward points: 1216. Qty: 100mm 7n Dense Concrete Building Blocks (Per M2) The blocks measure 440x215x100mm and are sold per m2 (10 blocks) A surcharge will payable for deliveries inside the M25 region. This also applies to postcode prefixes HP, AL, CB, IP, NR, PE, CM, SS, ME, DA, CT, TN, RH, GU, SL, RG.
  2. Leckwith Concrete Products and Building Supplies is one of South Wales leading manufacturer's of concrete paving slabs, concrete ballustrades, pillar caps, wall copings, garden edgings, ornamental concrete garden products and Bath Stone Premix, cement and plaster. We are stockists of Butane and Propane bottled gas
  3. Kingspan Kooltherm K106 Cavity Board is a premium performance insulation with a fibre-free rigid thermoset phenolic core. As part of our Kooltherm 100 range, it provides a level of performance that is unrivalled in the world of rigid thermoset insulation materials with a thermal conductivity of just 0.018 W/mK across all thicknesses
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Celotex GA4000 is a high-performance multi-purpose PIR rigid insulation board from Celotex, for use with pitched roofs, flat roofs, solid masonry walls, floors, timber framed & steel framed systems.. What type of Celotex do I need?Why not read our insightful guide and find out TREATED DECKING 125 x 38 4800mm 50524 VTH REDS FSC MIX 70% SA-COC-002262. £37.64 £31.37. TREATED DECKING 125 x 38 3600mm 50522 VTH REDS FSC MIX 70% SA-COC-002262. £28.24 £23.53. TREATED DECKING 125 x 38 3000mm 50520 VTH REDS FSC MIX 70% SA-COC-002262. £23.53 £19.61 External Wall Insulation. Building two skins of masonry (brick and/or blockwork) either side of an air cavity has been the most popular method for constructing external walls in the UK for about a century. From its development to address some of the flaws of traditional solid wall construction, it has gradually evolved in response to improving. Kingspan Kooltherm K106 Cavity Board is a 90mm premium performance lower lambda insulation with a fibre-free rigid thermoset phenolic core, a low emissivity composite foil on its inner face and a water-tight, vapour-open polypropylene fleece on its outer face Dense concrete blocks 7.3N/mm² to BS EN 771-3. Dense concrete blocks 7.3N/mm². Stowell dense concrete blocks offer the builder a full range of solid concrete blocks with a well-established durability, low drying shrinkage and proven acoustic properties that will fulfil most applications. They are manufactured to BS EN 771-3 using Class 1.