[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"doc-seo-650450-105":3,"detail-sidebar-cat-0-en-105":80,"doc-detail-650450-en":130},{"code":4,"msg":5,"data":6},0,"ok",{"site_id":7,"language":8,"slug":9,"title":10,"keywords":11,"description":12,"schema_data":13,"social_meta":73,"head_meta":75,"extra_data":77,"updated_unix":79},105,"en","roadstone-partial-fill-cavity-wall-party-wall-plan-detail-technical-specification","Roadstone - Partial Fill Cavity Wall-Party Wall Plan Detail - Technical Specification","","This technical document provides detailed thermal performance specifications for Roadstone's partial fill cavity wall and party wall junction design. It outlines Psi value metrics corresponding to different U-value ranges, specifically comparing standard Part L requirements against Roadstone's validated thermal model. The analysis confirms that all presented junction configurations successfully pass fRsi assessments, ensuring no risk of surface condensation. The document includes essential technical references for construction professionals, such as dwelling unit drawings, revision history, and compliance notes regarding y-value assumptions when using Roadstone's modelled details in building designs. This resource is intended for architects, engineers, and thermal modellers seeking certified performance data for construction compliance.",{"@graph":14,"@context":72},[15,34,55],{"@type":16,"itemListElement":17},"BreadcrumbList",[18,23,27,31],{"item":19,"name":20,"@type":21,"position":22},"https://docshare.wps.com","Home","ListItem",1,{"item":24,"name":25,"@type":21,"position":26},"https://docshare.wps.com/document/","Document",2,{"item":28,"name":29,"@type":21,"position":30},"https://docshare.wps.com/document/research-report/","Research & Report",3,{"item":32,"name":10,"@type":21,"position":33},"https://docshare.wps.com/document/roadstone-partial-fill-cavity-wall-party-wall-plan-detail-technical-specification/650450/",4,{"url":32,"name":10,"@type":35,"image":36,"author":41,"headline":10,"publisher":44,"fileFormat":47,"inLanguage":8,"description":12,"dateModified":48,"datePublished":49,"encodingFormat":47,"isAccessibleForFree":50,"interactionStatistic":51},"DigitalDocument",{"url":37,"@type":38,"width":39,"height":40},"https://docshare.wps.com/thumbnails/roadstone-partial-fill-cavity-wall-party-wall-plan-detail-technical-specification/650450.png","ImageObject",300,407,{"name":42,"@type":43},"Liam","Person",{"url":19,"name":45,"@type":46},"DocShare","Organization","application/pdf","2026-10-30","2026-10-24",true,{"@type":52,"interactionType":53,"userInteractionCount":30},"InteractionCounter",{"@type":54},"ViewAction",{"@type":56,"mainEntity":57},"FAQPage",[58,64,68],{"name":59,"@type":60,"acceptedAnswer":61},"What is the purpose of the provided Psi values?","Question",{"text":62,"@type":63},"The Psi values are used to quantify heat loss at the junction of partial fill cavity walls and party walls, with Roadstone's modelled values demonstrating superior performance compared to standard Part L benchmarks.","Answer",{"name":65,"@type":60,"acceptedAnswer":66},"Does the junction design comply with condensation standards?",{"text":67,"@type":63},"Yes, all presented junction options successfully pass fRsi assessment, indicating that no surface condensation is predicted for these designs.",{"name":69,"@type":60,"acceptedAnswer":70},"Can a y-value of 0.08 be assumed for this detail?",{"text":71,"@type":63},"Yes, in the 0.18 U-wall range, a y-value of 0.08 can be assumed without a specific calculation, provided all other building details comply with published ACDs or Roadstone's modelled standards.","https://schema.org",{"og:url":32,"og:type":74,"og:title":10,"og:site_name":45,"og:description":12},"article",{"robots":76,"canonical":32},"index,follow",{"doc_id":78,"site_id":7},650450,1792828483,{"code":4,"msg":81,"data":82},"success",[83,87,91,95,100,105,110,114,119,122,126],{"id":22,"doc_module":4,"doc_module_name":25,"category_name":84,"show_sort_weight":85,"slug":86},"Story & Novel",90,"story-novel",{"id":26,"doc_module":4,"doc_module_name":25,"category_name":88,"show_sort_weight":89,"slug":90},"Literature",80,"literature",{"id":33,"doc_module":4,"doc_module_name":25,"category_name":92,"show_sort_weight":93,"slug":94},"Exam",70,"exam",{"id":96,"doc_module":4,"doc_module_name":25,"category_name":97,"show_sort_weight":98,"slug":99},5,"Comic",60,"comic",{"id":101,"doc_module":4,"doc_module_name":25,"category_name":102,"show_sort_weight":103,"slug":104},6,"Technology",50,"technology",{"id":106,"doc_module":4,"doc_module_name":25,"category_name":107,"show_sort_weight":108,"slug":109},7,"Healthcare",40,"healthcare",{"id":111,"doc_module":4,"doc_module_name":25,"category_name":29,"show_sort_weight":112,"slug":113},8,30,"research-report",{"id":115,"doc_module":4,"doc_module_name":25,"category_name":116,"show_sort_weight":117,"slug":118},9,"Religion & Spirituality",20,"religion-spirituality",{"id":117,"doc_module":4,"doc_module_name":25,"category_name":120,"show_sort_weight":117,"slug":121},"World Cup","world-cup",{"id":123,"doc_module":4,"doc_module_name":25,"category_name":124,"show_sort_weight":123,"slug":125},10,"Lifestyle","lifestyle",{"id":127,"doc_module":4,"doc_module_name":25,"category_name":128,"show_sort_weight":96,"slug":129},19,"General","general",{"code":4,"msg":81,"data":131},{"doc_id":78,"user_id":132,"nickname":42,"user_avatar":133,"doc_module":4,"category_id":111,"category_name":29,"doc_title":10,"doc_description":12,"doc_content":134,"file_id":135,"file_url":136,"file_type":137,"file_size":138,"view_count":30,"is_deleted":4,"is_public":22,"is_downloadable":22,"audit_status":22,"page_count":22,"language":139,"language_code":8,"site_id":7,"html_lang":8,"table_of_contents":140,"faqs":141,"seo_title":142,"seo_description":12,"update_tm":79,"read_time":30},8796095461564,"https://ap-avatar.wpscdn.com/davatar_155a257f0dc6eb9ab79c44ca47cae57d","| \u003Cbr>|  |  | Roadstone Custom Psi values |  |  |\n| --- | --- | --- | --- | --- | --- |\n|  |  |  | U Value Range (W/m2 K) | Part L (Ψ) | Roadstone TLB Psi (Ψ) Value |\n|  |  |  | 0.18 | 0.045 | 0.04 |\n|  |  |  | 0.15 | 0.066 | 0.037 |\n|  |  |  | As modelled by NSAI registered Thermal Modellers: |  |  |\n|  |  |  | |  |  |\n|  |  |  | All options pass fRsi assessment, no surface condensation predicted |  |  |\n|  |  |  | *Note:\u003Cbr>In the 0.18 Uwall Range the model surpasses the default Psi value and therefore a y-value of 0.08 can be assumed using this option without a y-value calculation, provided all other details in the building comply with the published ACDs and/or Roadstone modelled details. |  |  |\n| REVISION: D | DWG. NO.: DETAIL RS 1.06.1 | DATE: APRIL 2020\u003Cbr>TO BE READ IN CONJUNCTION\u003Cbr>WITH Y-VALUE CALCULATION\u003Cbr>|  |  |  |\n| SCALE: NTS | JUNCTION: PARTIAL FILL CAVITY WALL/ PARTY WALL PLAN DETAIL |  |  |  |  |\n\nCopyright © ROADSTONE This information is supplied in good faith and no liability can be accepted for any loss or damage resulting from use.","cbCaigq9SlunOMKF","https://ap.wps.com/l/cbCaigq9SlunOMKF","pdf",621611,"English","# Thermal Performance Data\n## Psi Values and U-Value Ranges\n# Junction Details\n## Partial Fill Cavity Wall-Party Wall Specification","[{\"question\":\"What is the purpose of the provided Psi values?\",\"answer\":\"The Psi values are used to quantify heat loss at the junction of partial fill cavity walls and party walls, with Roadstone's modelled values demonstrating superior performance compared to standard Part L benchmarks.\"},{\"question\":\"Does the junction design comply with condensation standards?\",\"answer\":\"Yes, all presented junction options successfully pass fRsi assessment, indicating that no surface condensation is predicted for these designs.\"},{\"question\":\"Can a y-value of 0.08 be assumed for this detail?\",\"answer\":\"Yes, in the 0.18 U-wall range, a y-value of 0.08 can be assumed without a specific calculation, provided all other building details comply with published ACDs or Roadstone's modelled standards.\"}]","Roadstone - Partial Fill Cavity Wall-Party Wall Plan Detail - Technical Specification | PDF"]