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.
E13SMEW3 Pitched Roof Gable Insulation at Rafter level
Build Up
Solid External Masonry Wall
215mm Aircrete Solid Wall (λ ≤ 0.15 W/mK)
Render & Insulation (λ = 0.022 W/mK)
Pitched Roof Gable
150mm insulation (0.044W/mK) between rafters
50mm insulation (0.022W/mK) beneath rafters
This LABC Registered Construction Detail is only valid for use...
View DetailsE13MCFF3 Pitched roof gable, between and under rafter insulation
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 DetailsE13MCFF2 Pitched roof gable, 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 Gable
150mm insulation (0.022W/Mk) between rafters
50mm insulation (0.022W/Mk) beneath rafters
This LABC Registered Construction Detail is only...
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 DetailsE13MCFF6 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)
Full 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 DetailsE13MCFF5 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 = 0.15 W/mK)
Full 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 DetailsE13MCFF4 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 = 0.11 W/mK)
Full 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 Details