Detail Updates
You can find below the latest updates on the Detail Library. For the complete list, please consult the Detail Spreadsheet. For any further questions, please contact our support team.
Standard Construction
| Detail | Update Date | Update Description |
| TW14, TW16 | October 2025 | Update to cavity barrier notation. |
| MW19, TW11-TW13, TW17, TW20 | October 2025 | Update to cavity barrier provision behind cladding. |
| MW14, MW15, MW17, MW18 | October 2025 | Update to cavity barrier notation. |
| MR3, MR4, MR9 | March 2025 | Roof insulation updated to comply with regs. |
| SR2 | March 2025 | Roof insulation updated to comply with regs. |
| TR3, TR4 | March 2025 | Roof insulation updated to comply with regs. |
| MG2, MG2A | March 2025 | VCL positioned above floor insulation. |
| ICF1, ICF2 | March 2025 | VCL positioned above floor insulation. |
| TG2, TG3 | March 2025 | VCL positioned above floor insulation. |
| SIP12 | March 2025 | Roof insulation updated to comply with regs. |
| MW5 | March 2025 | Wall insulation updated to comply with regs. |
|
MG1 – MG15 |
June 2022 |
Minor amendments to ensure compliance with updated Building Regulations. |
| TG1 – TG6 | June 2022 | Improvements to thermal performance to ensure compliance with updated updated Building Regulations. |
| TG7 | June 2022 | Improvements to thermal performance to ensure compliance with updated Part L, detail updated to comply with Part E. |
| MW1 – MW21 | June 2022 | Improvements to ensure compliance with updated Building Regulations. |
| TW1 – TW18 | June 2022 | Improvements to ensure compliance with updated Building Regulations. |
| MR1 – MR5 | June 2022 | Improvements to thermal performance to ensure compliance with updated Part L. Minor amendments for updated Building Regulations. Updates to strap and wall plate. |
| MR6A, MR6B | June 2022 | Improvements to thermal performance to ensure compliance with updated Part L. Minor amendments for updated Building Regulations. |
| MR7 – MR8 | June 2022 | Improvements to thermal performance to ensure compliance with updated Part L. Minor amendments for updated Building Regulations. Amendments in line with NHBC 6.11.7 |
| MR9 – MR13 | June 2022 | Improvements to ensure compliance with updated Building Regulations. |
| TR1, TR3, TR5 | June 2022 | Improvements to thermal performance to ensure compliance with updated Part L. Minor amendments for updated Building Regulations. Updates to strap and wall plate. |
| TR2, TR4, TR6 | June 2022 | Improvements to thermal performance to ensure compliance with updated Part L. Minor amendments for updated Building Regulations. |
| TR7 | June 2022 | Improvements to thermal performance to ensure compliance with updated Part L. Minor amendments for updated Building Regulations. Amendments in line with NHBC 6.11.7 |
| GR1, GR4 | June 2022 | Improvements to thermal performance to ensure compliance with updated Part L. Minor amendments for updated Building Regulations. |
| GR2, GR3 | June 2022 | Improvements to thermal performance to ensure compliance with updated Part L. Minor amendments for updated Building Regulations. Amendments in line with NHBC 6.11.7 |
| ICF1 – ICF5 | June 2022 | Improvements to thermal performance to ensure compliance with updated Part L resulting in a thicker ICF unit. Minor amendments for updated Building Regulations. |
| ICF6 | June 2022 | Improvements to thermal performance to ensure compliance with updated Part L. Minor amendments for updated Building Regulations resulting in a thicker ICF unit. Updates to strap and wall plate. |
| SG1, SG2 | June 2022 | Improvements to thermal performance to ensure compliance with updated Part L. Minor amendments for updated Building Regulations. |
| SG3, SG4 | June 2022 | Improvements to thermal performance to ensure compliance with updated Part L. Minor amendments for updated Building Regulations, updates to meet Part E. |
| SR1, SR2 | June 2022 | Improvements to thermal performance to ensure compliance with updated Part L. Minor amendments for updated Building Regulations. |
| SW1 – SW4 | June 2022 | Improvements to thermal performance to ensure compliance with updated Part L. Minor amendments for updated Building Regulations. |
| SIP1 – SIP13 | June 2022 | Improvements to thermal performance to ensure compliance with updated Part L resulting in increased wall panel thickness. Minor amendments for updated Building Regulations. |
Loft Conversion
| Detail | Update Date | Update Description |
| LC10, LC13, LC14A, LC16, LC21-LC26, LC30 | October 2025 | Update to cavity barrier provision behind cladding. |
| LC04, LC06, LC07, LC10 | July 2022 | Increased insulation to improve thermal performance to ensure compliance with updated Part L. |
| LC12 – LC17 | July 2022 | Increased insulation to improve thermal performance to ensure compliance with updated Part L. |
| LC20 – LC42 | July 2022 | Increased insulation to improve thermal performance to ensure compliance with updated Part L. |
Detail Library General
| Detail | Update Date | Update Description |
|
DL20, DL21, DL24, DL25 |
October 2025 | Update to cavity barrier provision behind cladding. |
|
DL41, DL42, DL44, DL45, DL47, DL48 |
October 2025 | Update to cavity barrier provision behind cladding. |
| DL62-DL78 | October 2025 | Update to cavity barrier provision behind cladding. |
|
DL173, DL207-DL209, DL241, DL287, DL371, DL374, DL375 |
October 2025 | Update to cavity barrier provision behind cladding. |
| DL41, DL42, DL47, DL48 | March 2025 | External sheathing board indicated, roof insulation updated to comply with regs. |
| DL44, DL45 | March 2025 | Roof insulation updated to comply with regs. |
| DL259 | March 2025 | Roof insulation updated to comply with regs. |
| DL04, DL05 | March 2025 | Roof insulation updated to comply with regs. |
| DL62, DL63, DL67, DL68 | March 2025 | Wall insulation updated to comply with regs. |
| DL72, DL73 | March 2025 | Wall insulation updated to comply with regs. |
| DL207 – DL216 | March 2025 | Wall insulation updated to comply with regs. |
| DL251, DL252 | March 2025 | Wall insulation updated to comply with regs. |
| DL62, DL63, DL65 | July 2022 | Increased insulation to improve thermal performance to ensure compliance with updated Part L. |
| DL67, DL68, DL70 | July 2022 | Increased insulation to improve thermal performance to ensure compliance with updated Part L. |
| DL72, DL73, DL75 | July 2022 | Increased insulation to improve thermal performance to ensure compliance with updated Part L. |
| DL115 |
July 2022 | Increased insulation to improve thermal performance to ensure compliance with updated Part L. |
Passivhaus
| Detail | Update Date | Update Description |
| PHM19-PHM22, PHT03-PHT07, PHT11-PHT13 |
October 2025 | Update to cavity barrier provision behind cladding. |
| PHM06 | March 2025 | Roof insulation updated to comply with regs. |
Resources
| Resource | Update Date | Update Description |
| Construction Build Ups Template | October 2025 | Template updated to include 16 new roof and wall build ups that have been featured in the library over the last 6 months. |
For the complete list, please consult the Detail Spreadsheet. For any further questions, please contact our support team.