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External Masonry Cavity Wall
Masonry Outer Leaf (λ = 0.77)
Ultra Lightweight Concrete Block λ ≤ 0.28 W/mK
Beam and Block Floor
Dense Floor Block
150mm Insulation Below Screed (0.022W/Mk)
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Party Masonry Cavity Wall
Separating Wall and Roof
2 x Leaves Lightweight Blockwork Party (Separating) Wall
Cavity fully filled with insulation
150mm insulation (λ = 0.044W/mK) between the rafters
50mm (λ =0.022W/mK) below the rafters
This LABC Registered…
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External Masonry Cavity Wall
Masonry Outer Leaf (λ = 0.77)
100mm Aircrete Block Inner Leaf (λ = 0.11 W/mK)
Partial Fill Insulation
Independent Lintel
Proprietary PVC-U Cavity Closer
This LABC Registered Construction Detail is only valid for use with…
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External Masonry Cavity Wall
Masonry Outer Leaf (λ = 0.77)
100mm Aircrete Block Inner Leaf (λ = 0.15 W/mK)
Partial Fill Insulation
Normal Corner
This LABC Registered Construction Detail is only valid for use with building work intended to follow the…
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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…
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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 Eaves
150mm insulation (0.044W/mK) between rafters
50mm insulation (0.022W/mK) beneath rafters
Unventilated Rafter Void…
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External Masonry Cavity Wall
Masonry Outer Leaf (λ = 0.77)
Partial Fill Insulation
100mm Aircrete Block Inner Leaf (λ = 0.19 W/mK)
150mm Beam and Aircrete Block Infill
150mm Insulation Above Slab (0.022W/mK)
75mm Screed
This LABC Registered…
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External Masonry Cavity Wall
Masonry Outer Leaf (λ = 0.77)
Dense Concrete Block λ ≤1.33 W/mK
Partial Fill Insulation
Steel Lintel with Perforated Baseplate
(Insulated Soffit)
This LABC Registered Construction Detail is only valid for use with building work…
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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…
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External Masonry Cavity Wall
Masonry Outer Leaf (λ = 0.77)
Ultra Lightweight Concrete Block λ ≤ 0.28 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…