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.
E13MCPF6 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 DetailsE18MCPF12 Party Wall Between Dwellings
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
Proprietary Insulated Firestop (λ = 0.044W/mK)
2 x 100mm Aircrete Block (0.19W/m²K) Party (Separating) Wall
100mm cavity fully filled with insulation (0...
View DetailsE18MCPF9 Party Wall Between Dwellings
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
Proprietary Insulated Firestop (λ = 0.044W/mK)
2 x 100mm Aircrete Block (0.15W/m²K) Party (Separating) Wall
100mm cavity fully filled with insulation (0...
View DetailsE17MCPF6 Inverted Corner
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
Inverted Corner
This LABC Registered Construction Detail is only valid for use with building work intended to follow the guidance in the following:
En...
View DetailsE16MCPF6 Normal Corner
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
Normal Corner
This LABC Registered Construction Detail is only valid for use with building work intended to follow the guidance in the following:
Engl...
View DetailsE12MCPF6 Pitched Roof, Gable, Insulation At Ceiling 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
400mm insulation quilt (0.044W/mK) at Ceiling Level
Ventilated Loft
This LABC Registered Construction Detail is only valid for use...
View DetailsE11MCPF6 Pitched Roof, Eaves, 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 Eaves
150mm insulation (0.044W/mK) between rafters
50mm insulation (0.022W/mK) beneath rafters
Unventilated Rafter Void
This LABC...
View DetailsE10MCPF6 Pitched Roof, Eaves, Insulation At Ceiling 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 Eaves (minimum pitch 40°)
400mm insulation quilt (0.044W/mK) at Ceiling Level
Ventilated Loft
This LABC Registered Construction Detail...
View DetailsE7MCPF6 Precast Concrete Separating Floor Between Dwellings
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
Concrete Separating Floor Between Dwellings
150mm Precast Concrete Floor Plank
This LABC Registered Construction Detail is only valid for use with...
View DetailsE6MCPF6 Intermediate Timber Floor Within A Dwelling
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
Intermediate Timber Floor Within Dwelling
240mm Timber I Joist Built In
This LABC Registered Construction Detail is only valid for use with building...
View Details