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Specifies external wall build-ups below ground with Thermalite Shield blockwork leaves, 100mm cavities, trench blocks, drainage and rainwater pipe locations, and detailing splayed toward the outer leaf at 45°. Includes internal insulation and wallboard lining, perimeter edge insulation, pumped screed and underfloor heating layer build-up, ventilated void requirements, telescopic vent sizing, and soil removal and treatment notes. Notes Building Regulations compliance, NHBC guidance, and revision history for planning submission.",{"@graph":69,"@context":122},[70,84,105],{"@type":71,"itemListElement":72},"BreadcrumbList",[73,77,79,82],{"item":74,"name":75,"@type":76,"position":8},"https://docshare.wps.com","Home","ListItem",{"item":78,"name":9,"@type":76,"position":14},"https://docshare.wps.com/document/",{"item":80,"name":40,"@type":76,"position":81},"https://docshare.wps.com/document/research-report/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/house-type-plot-1-proposed-foundation-layout-external-wall-ground-floor-construction-detail/650171/",{"url":83,"name":65,"@type":85,"image":86,"author":91,"headline":65,"publisher":94,"fileFormat":97,"inLanguage":63,"description":67,"dateModified":98,"datePublished":99,"encodingFormat":97,"isAccessibleForFree":100,"interactionStatistic":101},"DigitalDocument",{"url":87,"@type":88,"width":89,"height":90},"https://docshare.wps.com/thumbnails/house-type-plot-1-proposed-foundation-layout-external-wall-ground-floor-construction-detail/650171.png","ImageObject",300,407,{"name":92,"@type":93},"EvelynWrites","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-10-31","2026-10-24",true,{"@type":102,"interactionType":103,"userInteractionCount":81},"InteractionCounter",{"@type":104},"ViewAction",{"@type":106,"mainEntity":107},"FAQPage",[108,114,118],{"name":109,"@type":110,"acceptedAnswer":111},"What is included in the proposed external wall construction below ground for Plot 1?","Question",{"text":112,"@type":113},"The detail specifies outer and inner leaf blockwork using Thermalite Shield at defined thicknesses, a filled cavity, and trench block foundations below. It also includes 45° splayed cavity fill direction toward the outer leaf at designated levels.","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"How is the ground floor build-up described around the underfloor heating and insulation layers?",{"text":117,"@type":113},"It specifies edge insulation to the perimeter, a separating layer over the underfloor heating pipes, a selected pumped screed layer, floor insulation and DPM layers, and a beam-and-block floor design by a specialist, with a minimum ventilated void beneath.",{"name":119,"@type":110,"acceptedAnswer":120},"What standards and legal/compliance notes apply to these drawings?",{"text":121,"@type":113},"The document states compliance with Building Regulations Part A and BS 8004, references NHBC Guarantee/requirements for foundation depths near trees, highlights the Party Wall Act 1996 notice requirement, and outlines CDM 2015 responsibilities and planning/building regulation use.","https://schema.org",{"og:url":83,"og:type":124,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":126,"canonical":83},"index,follow",{"doc_id":128,"site_id":62},650171,1792820661,{"code":4,"msg":5,"data":131},{"doc_id":128,"user_id":132,"nickname":92,"user_avatar":133,"doc_module":4,"category_id":39,"category_name":40,"doc_title":65,"doc_description":67,"doc_content":134,"file_id":135,"file_url":136,"file_type":137,"file_size":138,"view_count":81,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":8,"language":139,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":140,"faqs":141,"seo_title":142,"seo_description":67,"update_tm":129,"read_time":81},687212989558,"https://ap-avatar.wpscdn.com/davatar_a8503ba1806abce46bf441b54a3ca4cd","Rwp  \nExternal walls below ground level to be 300mm thickness. 100mm Thermalite Shield (3 .6Nmm²) blockwork outer leaf, 100mm cavity to be filled 225mm below DPC level & splayed at 45° towards outer leaf with 100mm Thermalite Shield (3 .6Nmm²) blockwork inner leaf. 300mm Thermalite Trench blocks (3 .6N/mm²) installed below.  \nExternal walls below projecting double plinth to be 415mm thickness. 100mm Thermalite Shield (3 .6Nmm²) blockwork outer leaf to be tied with 100mm Thermalite Shield (3 .6N/mm²) blockwork, 100mm cavity to be filled 225mm below DPC level & splayed at 45° towards outer leaf with 100mm  \nExternal walls below projecting plinth to be 360mm thickness. 150mm Thermalite Shield (3 .6Nmm²) blockwork outer leaf, 100mm cavity to be filled 225mm below DPC level & splayed at 45° towards outer leaf with 100mm Thermalite Shield (3 .6Nmm²) blockwork inner leaf with 355mm Thermalite Foundation blocks (3 .6N/mm²) below.  \n12.5mm Gyproc Wallboard on dabs with skim coat finish.  \n100mm Thermalite Shield (3 .6N/mm²) blockwork inner leaf.  \n25mm Celotex TB4000 edge insulation to perimeter of floor.  \nStrip & remove all vegetable soil & treat surface with weed killer.  \nFill 100mm cavity with weak mix concrete upto 225mm below DPC & splayed at 45° .  \n50mm selected pumped screed to be laid on selected underfloor heating pipes on a 500 gauge separating layer on 100mm Celotex GA4000 floor insulation on 1200 gauge DPM on 150mm min. deep PCC beam & block floor design by specialist with 150mm min. ventilated void below.  \nStadium telescopic vents at  1500mm max. centre & within 450mm of corners with selected air bricks & fly screen internally on opposite sides provide complete volume change per 24 hours.  \n| FOUNDATION LAYOUT KEY |  |\n| --- | --- |\n|  Rwp | Rainwater Pipe |\n|  EEB | Electricity Entry Point |\n|  Svp | Soil & Vent Pipe |\n|  Vp | Vent Pipe |\n|  aav | Anti-amittance Valve |\n\nFoundation Layout  \n\n|  |  |  |  |  |  |  |\n| --- | --- | --- | --- | --- | --- | --- |\n|  | |  | |  |  |  |\n|  |  | |  |  |  |  |\n| Direction of PCC floor beams.\u003Cbr>\u003Cbr>~~ ~~ 100mm Thermalite Shield (3 .6Nmm²) sleeper wall. |  |  |  | |  | |\n|  |  |  |  |  |  |  |\n| |  |  |  |  |  |  |\n\nRwp  \nThreshold  \nThreshold  \n\n| | |\n| --- | --- |\n|  |  |\n\nThermalite Shield (3 .6Nmm²) blockwork inner leaf.  \n97mm cavity to be fully filled with Knauf Dritherm  \n32 Ultimate insulation.  \nSelected 103mm facing brickwork.  \nSelected cavity tray & weepholes.  \nGround level to be  \n150mm min. below DPC.  \n2 leaves of 100mm Thermalite Shield (3 .6N/mm²) blockwork.  \n300mm Thermalite Trench blocks (3 .6N/mm²) .  \nDepth of foundations to be agreed with Building Control Officer.  \n600mm wide deep C25 mix  \nconcrete trench type foundations.  \nNOTES:-  \nFoundations to comply with Part A of the Building Regulations: 1992 & BS 8004: 1986.  \nShould ground conditions vary or soft spots appear, please refer to client’s Architects for further guidance.  \nWhere building near trees, depths of foundations to bein accordance with NHBC Guarantee Standards Volume One (substructure) or the NHBC requirements.  \nSvp  \nPRELIMINARY (SUBJECT TO BUILDING CONTROL & STRUCTURAL ENGINEERS APPROVAL  \nD Ground floor construction revised. 08/02/21  \nC Layout revised. 04/02/21  \nB Projecting plinth added. 02/02/21  \nREVISION: A Family room extended by 450mm. 26/01/21  \n\n| SCALE BARS:\u003Cbr>1m 2m 3m 4m 5m\u003Cbr>1:50\u003Cbr>0.5m 1m 1.5m 2m\u003Cbr>1:20 | DRAWINGS:-\u003Cbr>The drawings are the copyright of Studio 35 Architecture Ltd. The drawings must not be scaled from.\u003Cbr>The contractor / builder should take and verify all dimensions on site before proceeding with any works.\u003Cbr>All dimensions shown on the drawings are for Planning purposes only.\u003Cbr>GENERAL:-\u003Cbr>All works are to be carried out with the relevant current British Standard Codes of Practice and Building Research Digest Papers, and to be to the approval of the local Authority and all Statutory Undertakings. All materials shall be suitable for the purpose int","cbCaia9QBIdfkw5U","https://ap.wps.com/l/cbCaia9QBIdfkw5U","pdf",251697,"English","# Proposed Foundation Layout & External Wall / Ground Floor Construction Detail\n## External Walls Below Ground Level\n## Ground Floor Construction & Insulation Build-ups\n## Ventilation, Drains, and Services Symbols\n## Notes, Standards, and Compliance","[{\"question\":\"What is included in the proposed external wall construction below ground for Plot 1?\",\"answer\":\"The detail specifies outer and inner leaf blockwork using Thermalite Shield at defined thicknesses, a filled cavity, and trench block foundations below. It also includes 45° splayed cavity fill direction toward the outer leaf at designated levels.\"},{\"question\":\"How is the ground floor build-up described around the underfloor heating and insulation layers?\",\"answer\":\"It specifies edge insulation to the perimeter, a separating layer over the underfloor heating pipes, a selected pumped screed layer, floor insulation and DPM layers, and a beam-and-block floor design by a specialist, with a minimum ventilated void beneath.\"},{\"question\":\"What standards and legal/compliance notes apply to these drawings?\",\"answer\":\"The document states compliance with Building Regulations Part A and BS 8004, references NHBC Guarantee/requirements for foundation depths near trees, highlights the Party Wall Act 1996 notice requirement, and outlines CDM 2015 responsibilities and planning/building regulation use.\"}]","HOUSE TYPE-PLOT 1 - Proposed Foundation Layout & External Wall / Ground Floor Construction Detail | PDF"]