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.
E1MCPF1 Insulated Steel Lintel
Build Up
External Masonry Cavity Wall
Masonry Outer Leaf (λ = 0.77)
Ultra Lightweight Concrete Block Inner Leaf (λ ≤ 0.28 W/mK)
Partial Fill Insulation
Steel Lintel with Perforated Baseplate
(Insulated Soffit)
This LABC Registered Construction Detail is only valid for use with building...
View DetailsE18MCFF4 Masonry separating 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
Full 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 DetailsE18MCFF1 Masonry separating 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
Full Fill Insulation
2 x Lightweight Blockwork Leaves to Party (Separating) Wall
This LABC Registered Construction Detail is only valid for use with building...
View DetailsE17MCFF1 Inverted Corner
Build Up
External Masonry Cavity Wall
Masonry Outer Leaf (λ = 0.77)
Dense Concrete Block λ ≤1.33 W/mK
Full Fill Insulation
Normal Corner
This LABC Registered Construction Detail is only valid for use with building work intended to follow the guidance in the following:
England
Approved... View DetailsE16MCFF1 Normal Corner
Build Up
External Masonry Cavity Wall
Masonry Outer Leaf (λ = 0.77)
Dense Concrete Block λ ≤1.33 W/mK
Full Fill Insulation
Pitched Roof Gable
150mm insulation (0.022W/Mk) between rafters
50mm insulation (0.022W/Mk) beneath rafters
This LABC Registered Construction Detail is only valid for...
View DetailsE13MCFF1 Pitched roof gable, between and under rafter insulation
Build Up
External Masonry Cavity Wall
Masonry Outer Leaf (λ = 0.77)
Ultra Lightweight Concrete Block λ ≤ 0.28 W/mK
Full Fill Insulation
Pitched Roof Gable
150mm insulation (0.022W/Mk) between rafters
50mm insulation (0.022W/Mk) beneath rafters
This LABC Registered Construction Detail is...
View DetailsE12MCFF1 Pitched roof gable, insulation at ceiling level
Build Up
External Masonry Cavity Wall
Masonry Outer Leaf (λ = 0.77)
Ultra Lightweight Concrete Block λ ≤ 0.28 W/mK
Full Fill Insulation
Pitched Roof Gable
400mm insulation (0.044W/mK) at Ceiling Level
Ventilated Loft
This LABC Registered Construction Detail is only valid for use with...
View DetailsE11MCFF1 Pitched roof eaves, between and under rafter insulation
Build Up
External Masonry Cavity Wall
Masonry Outer Leaf (λ = 0.77)
Ultra Lightweight Concrete Block λ ≤ 0.28 W/mK
Full Fill Insulation
Pitched Roof Eaves
150mm insulation (0.022W/mK) between rafters
50mm insulation (0.022W/mK) beneath rafters
This LABC Registered Construction Detail is...
View DetailsE10MCFF1 Pitched roof eaves
Build Up
External Masonry Cavity Wall
Masonry Outer Leaf (λ = 0.77)
Ultra Lightweight Concrete Block λ ≤ 0.28 W/mK
Full Fill Insulation
Pitched Roof Eaves
400mm insulation (0.044W/mK) at Ceiling Level
Ventilated Loft
This LABC Registered Construction Detail is only valid for use with...
View DetailsE5MCFF13 Ground Floor, Insulation Above Slab
Build Up
External Masonry Cavity Wall
Masonry Outer Leaf (λ = 0.77)
Ultra Lightweight Concrete Block λ ≤ 0.28 W/mK
Full Fill Insulation
Ground Floor – 100mm Slab
100mm Insulation (0.022W/Mk) Below 75mm Screed
This LABC Registered Construction Detail is only valid for use with building work...
View Details