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.
E10MCFF3 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 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 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 DetailsE5MCFF9 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
Lightweight 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 DetailsE5MCFF6 Suspended Beam and Block Floor – 100mm 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
100mm Insulation Below Screed (0.022W/Mk)
This LABC Registered Construction Detail is only valid for use with building work intended to follow the...
View DetailsE5MCFF3 Suspended Beam and Block Floor – 100mm 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
Lightweight Floor Block
100mm Insulation Below Screed (0.022W/Mk)
This LABC Registered Construction Detail is only valid for use with building work intended to follow...
View DetailsE4MCFF3 Jamb
Build Up
External Masonry Cavity Wall
Masonry Outer Leaf
Dense Concrete Block λ ≤1.33 W/mK
Full 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 Document L1A and... View DetailsE3MCFF3 Sill
Build Up
External Masonry Cavity Wall
Masonry Outer Leaf (λ = 0.77)
Dense Concrete Block λ ≤1.33 W/mK
Full Fill Insulation
Window Sill
This LABC Registered Construction Detail is only valid for use with building work intended to follow the guidance in the following:
England
Approved... View DetailsE2MCFF3 Independent Concrete Lintel
Build Up
External Masonry Cavity Wall
Masonry Outer Leaf (λ = 0.77)
Dense Concrete Block λ ≤ 1.33 W/mK
Full Fill Insulation
Independent Concrete Lintel
Soffit Insulation
This LABC Registered Construction Detail is only valid for use with building work intended to follow the guidance in the...
View DetailsE1MCFF3 Independent Steel Lintel
Build Up
External Masonry Cavity Wall
Masonry Outer Leaf (λ = 0.77)
Dense Concrete Block Inner Leaf (λ ≤ 1.33 W/mK)
Full Fill Insulation
Steel Lintel with Perforated Baseplate
(Insulated Soffit)
This LABC Registered Construction Detail is only valid for use with building work intended to...
View Details