Construction Details
LABC Registered Construction Details are 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: LABC Registered Construction Details 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: LABC Registered Construction Details should not be used for Approved Document L Volume 1 and 2 (2022 edition) or any subsequent amendments.
P5PCFF1 Roof, Insulation At Rafter Level
Build Up
Party Masonry Cavity Wall
Separating Wall and Roof
2 x 100mm Aircrete Block (0.15W/m²K) Party (Separating) Wall
100mm cavity fully filled with insulation (0.044W/mK) density up to 40kg/m3
150mm insulation (λ = 0.044W/mK) between the rafters
50mm (λ =0.022W/mK) below the rafters
Th...
View DetailsP4PCFF1 Roof, Insulation At Ceiling Level
Build Up
Masonry Party Wall
Separating Wall and Roof
2 x 100mm Aircrete Block (0.15W/m²K) Party (Separating) Wall
Max. 100mm cavity fully filled with insulation (0.044W/mK) density up to 40kg/ m3
400mm Insulation (λ = 0.044W/mK) at Ceiling Level
This LABC Registered Construction Detail is...
View DetailsE18MCFF11 Party Wall Between Dwellings
Build Up
External Masonry Cavity Wall
Masonry Outer Leaf (λ = 0.77)
100mm Aircrete Block Inner Leaf (λ = 0.15 W/mK)
Full Fill Insulation
2 x 100mm Aircrete Block (0.19W/m²K) Party (Separating) Wall
100mm cavity fully filled with insulation (0.044W/Mk)
This LABC Registered Construction...
View DetailsE18MCFF8 Party Wall Between Dwellings
Build Up
External Masonry Cavity Wall
Masonry Outer Leaf (λ = 0.77)
100mm Aircrete Block Inner Leaf (λ = 0.15 W/mK)
Full Fill Insulation
2 x 100mm Aircrete Block (0.15W/m²K) Party (Separating) Wall
100mm cavity fully filled with insulation (0.044W/mK)
This LABC Registered Construction...
View Details