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.
E16MCPF2 Normal Corner
Build Up
External Masonry Cavity Wall
Masonry Outer Leaf (λ = 0.77)
Lightweight Concrete Block Inner Leaf λ ≤ 0.60 W/mK
Partial 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:
...
View DetailsE13MCPF2 Pitched roof gable, between and under rafter insulation
Build Up
External Masonry Cavity Wall
Masonry Outer Leaf (λ = 0.77)
Lightweight Concrete Block Inner Leaf λ ≤ 0.60 W/mK
Partial Fill Insulation
Pitched Roof Gable
150mm insulation (0.022W/Mk) between rafters
50mm insulation (0.022W/Mk) beneath rafters
This LABC Registered Construction...
View DetailsE12MCPF2 Pitched Roof Gable, Insulation at Ceiling Level
Build Up
External Masonry Cavity Wall
Masonry Outer Leaf (λ = 0.77)
Lightweight Concrete Block Inner Leaf λ ≤ 0.60 W/mK
Partial 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...
View DetailsE11MCPF2 Pitched roof eaves, between and under rafter insulation
Build Up
External Masonry Cavity Wall
Masonry Outer Leaf (λ = 0.77)
Lightweight Concrete Block Inner Leaf λ ≤ 0.60 W/mK
Partial Fill Insulation
Pitched Roof Eaves
150mm insulation (0.022W/mK) between rafters
50mm insulation (0.022W/mK) beneath rafters
This LABC Registered Construction...
View DetailsE10MCPF2 Pitched roof eaves, insulation at ceiling level
Build Up
External Masonry Cavity Wall
Masonry Outer Leaf (λ = 0.77)
Lightweight Concrete Block Inner Leaf λ ≤ 0.60W/mK
Partial 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...
View DetailsE5MCPF14 Ground Floor, Insulation above slab
Build Up
External Masonry Cavity Wall
Masonry Outer Leaf (λ = 0.77)
Lightweight Concrete Block Inner Leaf λ ≤ 0.60 W/mK
Partial 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...
View DetailsE5MCPF11 Suspended beam and block floor – 150mm Insulation below screed
Build Up
External Masonry Cavity Wall
Masonry Outer Leaf (λ = 0.77)
Lightweight Concrete Block Inner Leaf λ ≤ 0.60 W/mK
Partial Fill Insulation
Beam and Block Floor
Dense Floor Block
150mm Insulation Below Screed (0.022W/mK)
This LABC Registered Construction Detail is only valid for use...
View DetailsE5MCPF8 Suspended beam and block floor – 150mm Insulation below screed
Build Up
External Masonry Cavity Wall
Masonry Outer Leaf (λ = 0.77)
Lightweight Concrete Block Inner Leaf λ ≤ 0.60 W/mK
Partial Fill Insulation
Beam and Block Floor
Lightweight Floor Block
150mm Insulation Below Screed (0.022W/mK)
This LABC Registered Construction Detail is only valid for...
View DetailsE5MCPF5 Suspended beam and block floor – 100mm Insulation below screed
Build Up
External Masonry Cavity Wall
Masonry Outer Leaf (λ = 0.77)
Lightweight Concrete Block Inner Leaf λ ≤ 0.60 W/mK
Partial Fill Insulation
Beam and Block Floor
Dense Floor Block
100mm Insulation Below Screed (0.022W/mK)
This LABC Registered Construction Detail is only valid for use...
View DetailsE5MCPF2 Suspended beam and block floor – 100mm Insulation below screed
Build Up
External Masonry Cavity Wall
Masonry Outer Leaf (λ = 0.77)
Lightweight Concrete Block Inner Leaf λ ≤ 0.60 W/mK
Partial Fill Insulation
Suspended Beam and Block Floor
Lightweight Floor Block
100mm Insulation Below Screed (0.022W/mK)
This LABC Registered Construction Detail is only...
View Details