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.
E7MCFF2 Concrete intermediate floor between dwellings
Build Up
External Masonry Cavity Wall
Masonry Outer Leaf (λ = 0.77)
Lightweight Concrete Block λ ≤ 0.60 W/mK
Full Fill Insulation
Precast Concrete Floor Between Dwellings
This LABC Registered Construction Detail is only valid for use with building work intended to follow the guidance in the...
View DetailsE7MCFF1 Concrete intermediate floor between dwellings
Build Up
External Masonry Cavity Wall
Masonry Outer Leaf (λ = 0.77)
Ultra Lightweight Concrete Block λ ≤ 0.28 W/mK
Full Fill Insulation
Precast Concrete Floor Between Dwellings
This LABC Registered Construction Detail is only valid for use with building work intended to follow the guidance...
View DetailsE4MCPF3 Jamb
Build Up
External Masonry Cavity Wall
Masonry Outer Leaf
Dense Concrete Block Inner Leaf λ ≤1.33 W/mK
Partial Fill Insulation
Window Jamb
This LABC Registered Construction Detail is only valid for use with building work intended to follow the guidance in the following:
England
Approved... View DetailsE4MCPF2 Jamb
Build Up
External Masonry Cavity Wall
Masonry Outer Leaf
Lightweight Concrete Block Inner Leaf λ ≤ 0.60 W/mK
Partial Fill Insulation
Window Jamb
This LABC Registered Construction Detail is only valid for use with building work intended to follow the guidance in the following:
England
Ap... View DetailsE4MCPF1 Jamb
Build Up
External Masonry Cavity Wall
Masonry Outer Leaf
Ultra Lightweight Concrete Block Inner Leaf λ ≤ 0.28 W/mK
Partial Fill Insulation
Window Jamb
This LABC Registered Construction Detail is only valid for use with building work intended to follow the guidance in the following:
England...
View DetailsE13MCPF6 Pitched Roof, Gable, Insulation At Rafter Level
Build Up
External Masonry Cavity Wall
Masonry Outer Leaf (λ = 0.77)
100mm Aircrete Block Inner Leaf (λ = 0.19 W/mK)
Partial Fill Insulation
Pitched Roof Gable
150mm insulation (0.044W/mK) between rafters
50mm insulation (0.022W/mK) beneath rafters
Unventilated Rafter Void
This LABC...
View DetailsE18MCPF6 Masonry separating wall – External wall
Build Up
External Masonry Cavity Wall
Masonry Outer Leaf (λ = 0.77)
100mm Dense Concrete Block λ ≤1.33 W/mK Inner Leaf
Partial Fill Insulation
2 x Dense Blockwork Leaves to Party (Separating) Wall
This LABC Registered Construction Detail is only valid for use with building work intended to...
View DetailsE18MCPF5 Masonry separating wall – External wall
Build Up
External Masonry Cavity Wall
Masonry Outer Leaf (λ = 0.77)
100mm Lightweight Concrete Block λ ≤ 0.60 W/mK Inner Leaf
Partial Fill Insulation
2 x Dense Blockwork Leaves to Party (Separating) Wall
This LABC Registered Construction Detail is only valid for use with building work...
View DetailsE18MCPF4 Masonry separating wall – External wall
Build Up
External Masonry Cavity Wall
Masonry Outer Leaf (λ = 0.77)
100mm Ultra Lightweight Concrete Block λ ≤ 0.28 W/mK Inner Leaf
Partial Fill Insulation
2 x Dense Blockwork Leaves to Party (Separating) Wall
This LABC Registered Construction Detail is only valid for use with building work...
View DetailsE18MCPF3 Masonry separating wall – External wall
Build Up
External Masonry Cavity Wall
Masonry Outer Leaf (λ = 0.77)
100mm Dense Concrete Block λ ≤1.33 W/mK Inner Leaf
Partial Fill Insulation
2 x Lightweight Blockwork Leaves to Party (Separating) Wall
This LABC Registered Construction Detail is only valid for use with building work...
View Details