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.
E11MCFF2 Pitched roof eaves, between and under rafter insulation
Build Up
External Masonry Cavity Wall
Masonry Outer Leaf (λ = 0.77)
Lightweight Concrete Block λ ≤ 0.60 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 only...
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 DetailsE10MCFF3 Pitched roof eaves
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 Eaves
400mm insulation (0.044W/mK) at Ceiling Level
Ventilated Loft
This LABC Registered Construction Detail is only valid for use with building work...
View DetailsE10MCFF2 Pitched roof eaves
Build Up
External Masonry Cavity Wall
Masonry Outer Leaf (λ = 0.77)
Lightweight Concrete Block λ ≤ 0.60 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 building...
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 DetailsE5MCFF15 Ground Floor, Insulation Above Slab
Build Up
External Masonry Cavity Wall
Masonry Outer Leaf (λ = 0.77)
Dense Concrete Block λ ≤1.33 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 intended to...
View DetailsE5MCFF14 Ground Floor, Insulation Above Slab
Build Up
External Masonry Cavity Wall
Masonry Outer Leaf (λ = 0.77)
Lightweight Concrete Block λ ≤ 0.60 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 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 DetailsE5MCFF12 Suspended Beam and Block Floor – 150mm Insulation Below Screed
Build Up
External Masonry Cavity Wall
Masonry Outer Leaf (λ = 0.77)
Dense Concrete Block λ ≤1.33 W/mK
Beam and Block Floor
Dense Floor Block
150mm Insulation Below Screed (0.022W/Mk)
This LABC Registered Construction Detail is only valid for use with building work intended to follow the...
View DetailsE5MCFF11 Suspended Beam and Block Floor – 150mm Insulation Below Screed
Build Up
External Masonry Cavity Wall
Masonry Outer Leaf (λ = 0.77)
Lightweight Concrete Block λ ≤ 0.60 W/mK
Beam and Block Floor
Dense Floor Block
150mm Insulation Below Screed (0.022W/Mk)
This LABC Registered Construction Detail is only valid for use with building work intended to follow...
View Details