P4MCFF1 Separating wall and roof with insulation at ceiling level
Build Up
Masonry Party Wall
Separating Wall and Roof
2 x Leaves Lightweight Blockwork to Party (Separating) Wall
Cavity fully filled with insulation
400mm Insulation (λ = 0.044W/mK) at Ceiling Level
This LABC Registered Construction Detail is only valid for use with building work intended to follow the guidance in the following:
England
- Approved Document L1A and L2A (2013 edition incorporating amendments up to and including 2016)
- Approved Document L1B (2010 edition incorporating amendments up to and including 2018)
- Approved Document L2B (2010 edition incorporating amendments up to and including 2016)
NOTE: This LABC Registered Construction Detail should not be used for Approved Document L Volume 1 and 2 (2021 edition) or any subsequent amendments.
Wales
- Approved Document L1A, L1B, L2A and L2B (2014 edition incorporating amendments up to and including 2016)
NOTE: This LABC Registered Construction Detail should not be used for Approved Document L Volume 1 and 2 (2022 edition) or any subsequent amendments.
Architect downloads
p4mcff1_cad_file.dwg220.84 KB
Registered Detail certificates
p4mcff1_certificate_1.pdf627.72 KB
rcd_worksheet_57.pdf301.44 KB